• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method and a modular holding and exchange system (1) for medium or high voltage converters, preferably a modular multilevel converter, comprising a frame (2) for receiving at least two power modules (4) arranged one above the other in receiving spaces (3). , wherein the frame (2) has at least two pairs of vertical standing elements (5) and at least two supporting elements (6) connecting the vertical standing elements (5) in a longitudinal direction (10) of the frame (2) in a horizontal support plane (9), one with The frame (2) can be coupled with a lifting tool (7) which has at least one, preferably at least two, rolling bodies () which can be adjusted between a rest position (13) and a support or service position (14) for temporarily lifting and / or moving a power module (4). 19), the power modules (4) in the transverse direction (11) with respect to a housing width (15) outstanding support surfaces (16) for support on the support elements ten (6) and the support elements (6) have a top (17) provided to support at least parts of the support surface (16) of the respective power module (4) and are designed as profile elements such that each support element (6) has at least one , preferably in each case at least two through openings (18) spaced apart in the longitudinal direction (10) for the passage of at least one rolling element (19) in the service position (14) of the lifting tool (7), and wherein the lifting tool (7) has one in the profile element of the support element (6) in the rest position (13) of longitudinally profile body (21), preferably hollow body, which can be inserted, in which a lever device (20) for adjusting the at least one rolling body (19), preferably the at least two in the longitudinal direction (10 ) spaced apart roller body (19), from the rest position (13) into the service position (14).
    公开号:AT521276A4
    申请号:T50429/2018
    申请日:2018-05-25
    公开日:2019-12-15
    发明作者:
    申请人:Miba Energy Holding Gmbh；
    IPC主号:
    专利说明:

    Summary
    The invention relates to a method and a modular holding and exchange system (1) for medium or high voltage converters, preferably a modular multilevel converter, comprising a frame (2) for receiving at least two power modules (4) arranged one above the other in receiving spaces (3). , wherein the frame (2) has at least two pairs of vertical standing elements (5) and at least two supporting elements (6) connecting the vertical standing elements (5) in a longitudinal direction (10) of the frame (2) in a horizontal support plane (9), one with The frame (2) can be coupled with a lifting tool (7) which has at least one, preferably at least two, rolling bodies () that can be adjusted between a rest position (13) and a support or service position (14) for temporarily lifting and / or moving a power module (4). 19), the power modules (4) in the transverse direction (11) with respect to a housing width (15) outstanding support surfaces (16) for support on the support element en (6) and the support elements (6) have an upper side (17) provided for supporting at least parts of the support surface (16) of the respective power module (4) and are designed as profile elements such that each support element (6) has at least one , preferably in each case at least two through openings (18) spaced apart in the longitudinal direction (10) for the passage of at least one rolling element (19) in the service position (14) of the lifting tool (7), and wherein the lifting tool (7) has one in the profile element of the support element (6) in the rest position (13) of longitudinally insertable profile body (21), preferably hollow body, in which a lever device (20) for adjusting the at least one rolling body (19), preferably the at least two in the longitudinal direction (10 ) spaced apart roller body (19), from the rest position (13) into the service position (14).
    Fig. 1/37
    N2018 / 09500 AT-00
    The invention relates to a modular holding and exchange system, and a method for changing a power module of a medium or high voltage converter.
    In the case of high-voltage direct current transmission, the conversion from three-phase current to direct current or vice versa takes place. Inverters (or Modular Multilevel Converter-MMC) are often used. Such modular multilevel converters generally consist of a large number of power modules connected in series, which can also be referred to as submodules. Each power module can be switched independently of the other power modules. The power modules loaded with medium or high voltage generally have a relatively high dead weight of more than 200 kg. The power modules are often arranged in a frame or rack, whereby the small volume, minimizing costs and ensuring the insulation requirements must be observed by a specialist.
    In order to ensure the functionality of the medium or high-voltage converter, it is necessary to be able to replace defective power modules quickly and safely. Due to the high weight of the power modules, it is often very difficult to change them. A number of changing devices are known to the person skilled in the art for changing power modules. EP 3 091 621 A1 is representative of this, which discloses a changing device for power assemblies, wherein an elongated fixed receiving frame and a holding frame horizontally displaceable thereon for receiving a power assembly are described. By top, / 37
    N2018 / 09500-AT-00 lateral and lower walls of the mounting frame, a roller channel that is open on one side is formed, into which the sliding holding frame with the rollers can be inserted for the use of the power module. The changing device disclosed in EP 3 091 621 A1 is thus constructed as an extendable slide, which adds a high additional dead weight of the changing device for each power module or receiving space of the modular multilevel converter. In addition, the design of the changing device as a multi-part slide system requires a relatively high total space requirement.
    Another possibility for a changing device is disclosed in WO 2016/009046 A1. The power modules are supported by means of L-shaped rails attached to the underside in relation to horizontal reinforcement struts. The changing device of WO 2016/009046 A1 is inserted as a ball bearing platform between the holding frame of the frame and the underside of the power module in the space formed by the L-shaped supports. After contacting and lifting the power module through the ball bearing platform, it is possible to slide out and replace the power module. However, such a ball bearing platform has the disadvantage of being very heavy and can therefore only be used by an operator with great effort. This means that the space requirement of a power module or a receiving space in the vertical direction is relatively high due to the design of the L-shaped supports.
    The object of the present invention was to overcome the disadvantages of the prior art and to provide a modular holding and exchange system and a method by means of which a user is able to carry out a simple, safe, quick change of a defective power module , Furthermore, the objects of the invention are a cost-effective, space-saving solution that also meets the insulation requirements and / or explosion protection requirements for a power module holding and / 37
    N2018 / 09500 AT-00
    To create an exchange system. Associated with this is a lifting tool according to the invention, which is designed to be compatible with the modular holding and exchange system and is used to carry out the method.
    This task is solved by a modular holding and exchange system as well as a method according to the claims.
    The modular holding and exchange system for medium or high voltage converters according to the invention comprises a frame and a lifting tool which can be coupled to the frame, and at least one power module which is arranged in the frame. The frame is designed to accommodate at least two power modules arranged one above the other in receiving spaces. The frame comprises at least two pairs of vertical standing elements and at least two supporting elements connecting the vertical standing elements in a longitudinal direction of the frame in a horizontal support plane. The lifting tool that can be coupled to the frame each comprises at least one rolling element, preferably at least two rolling elements, which can be raised or moved between a rest position and a support or service position. This lifting between the rest position and the service position results in a lifting of the power module, which can subsequently be moved out of the frame in the longitudinal direction. The modular holding and exchange system is designed to accommodate power modules that have excellent support surfaces in the transverse direction compared to a housing width for support on the support elements. The corresponding support elements of the frame are designed to support at least parts of the support surface of the respective power module with a top provided for this purpose as a profile element such that each support element has at least one through opening, preferably at least two through openings spaced apart in the longitudinal direction, for the passage of at least one rolling element in the service position of the lifting tool. The lifting tool is designed to be insertable into the profile element of the support element in the rest position and comprises an elongated profile body, preferably a hollow body, in which a lever device for adjusting at least one rolling body, preferably two in the longitudinal direction from each other / 37
    N2018 / 09500-AT-00 spaced rolling elements are formed from the rest position to the service position.
    In this way, the modular holding and replacement system according to the invention avoids transverse elements on the end face, which faces the operator. This simplifies the operation of the power modules and improves accessibility when servicing. A plurality of power modules can be arranged one above the other in the vertical direction within the frame in the receiving spaces provided for this purpose, whereby a reduced space requirement of the receiving spaces in the vertical direction can be achieved by supporting the power modules on the support surfaces relative to the supporting elements of the frame. The construction of the modular holding and exchange system according to the invention is relatively simple and inexpensive to implement. In addition, it is according to the invention that the insertion of the lifting tools is only necessary in the event of damage in the provided profile elements of the support element. This avoids the arrangement of moving and / or loose parts in the frame, which can prove disadvantageous, particularly in high-voltage applications. In addition, by avoiding known lifting devices or roller shutter systems, a reduction in the total weight of the holding and replacement system according to the invention occurs in each individual receiving space of the frame. In addition, only one pair of lifting tools is required to service a medium or high-voltage converter, which means that there are no acquisition costs. Furthermore, a very low overall height of the frame can be achieved, since the individual power modules can be arranged relatively close to one another in the vertical direction. It is conceivable here to design the profile elements for receiving the lifting tools as a C or double-T profile, the through openings according to the invention for the rolling elements having to be provided in the vertical direction at the top and to ensure suitable support of the lifting tool in the vertical direction downward on the profile element got to. In the simplest case, a profile element can be realized by a closed hollow profile. In addition to sufficient rigidity of the hollow profile, slipping of the lifting tool in the transverse direction can be efficiently avoided in this way.
    / 37
    N2018 / 09500 AT-00
    In the method according to the invention, in addition to a frame just described, a lifting tool is provided which is inserted into the profile element of the respective support element in the rest position. In this case, the rolling bodies, which are spaced apart from one another in the longitudinal direction, are arranged essentially concealed in the interior of the profile body of the lifting tool. The lifting tools are inserted in the longitudinal direction in both supporting elements on which the power module to be replaced is supported. The insertion takes place until the rolling elements are aligned with the passage openings of the support element. This is followed by actuation of the lever device of the lifting tool for adjusting the rolling elements from the rest position into the service position, the power module to be replaced being raised by the rolling elements contacting at least parts of the supporting surfaces which project in the transverse direction against its housing width.
    In the manner described, the power module is deflected a few millimeters to centimeters in the vertical direction over the support plane. After the power module to be replaced has been lifted, the power module can be moved horizontally out, by pushing or pulling it out, in the longitudinal direction onto a transfer device. For quick recommissioning, it can be replaced with an intact power module or the defective power module can be repaired and then inserted. Advantageously, the lifting tool remains in the support element during the power module change and can be removed after the change and the lowering of the power module at the intended position into the rest position.
    Furthermore, it can be expedient if the lever device comprises a push rod which is movably connected to all the rolling bodies arranged in the longitudinal direction via a lever arm in each case to the profile body for simultaneous adjustment from the rest position into the service position.
    Such a lever device is easy to manufacture and allows simultaneous actuation of all rolling elements of a lifting tool. This results in a / 37
    N2018 / 09500-AT-00 homogeneous lifting of the power module in the vertical direction, resulting in a
    Tilting the power module to the side can be avoided efficiently.
    It can further be provided that the lever device is designed to be operable in the longitudinal direction from an end face of the lifting tool, preferably by means of an extension.
    A large number of embodiments are conceivable for actuating the lever device or the push rod. For example, the rolling elements can be lifted separately and / or together from the rest position into the service position by means of an electromechanical drive. However, it has been found to be particularly robust and safe to make the lever device accessible from the end face of the lifting tool, the lever device should be able to be actuated by pressure in the longitudinal direction. As a result, complicated mechanics can be avoided and the lifting tool can be lightweight. The pressure is preferably applied to the lever device in the longitudinal direction by means of an extension.
    In addition, it can be provided that the lifting tool has a locking device for temporarily blocking the push rod in the service position by engaging in a recess on the push rod.
    This measure represents a simple, safe and cost-effective way of fixing the rolling elements in the service position. The blocking of the push rod by the locking device can be carried out easily by the operator and increases the safety when replacing the power module.
    Also advantageous is a configuration according to which it can be provided that the locking device for automatic locking when the lever device is adjusted from the rest position and into the service position has a spring element for applying a pretensioning force between the profile body and the push rod. Alternatively, the automatic locking can be achieved by / 37
    N2018 / 09500-AT-00 the locking device is mounted in the profile body such that gravity-induced locking with the push rod into the recess takes place when the lever device is adjusted from the rest position to the service position.
    This measure automatically locks the rolling elements in the service position, which means that separate operator actions can be avoided. In addition, this measure is very time-saving and can significantly increase safety in use.
    It is particularly advantageous if two lifting tools for lifting the power module are actuated simultaneously from the rest position to the service position.
    In this way, tilting of the power module can be avoided, which promotes safety. Furthermore, two-handed operation is easy for an operator to carry out. It is also conceivable that the lever device can be actuated from the outside by a corresponding take-over device. In this respect, it is conceivable that a lifting platform or a suitable fork lift can operate the two lifting tools at the same time.
    According to a further development, it is possible for at least one guide body to be arranged laterally and / or on an underside of the lifting tool on the profile body of the lifting tool.
    Such guide bodies can, for example, be made of a low-friction material and primarily serve for the correct positioning of the lifting tool within the support element. Such guide bodies thus serve for lateral and / or vertical support and can be used to reduce the weight of the lifting tool. As a result of this measure, the profile body of the lifting tool can have a smaller diameter. Furthermore, an unintentional slipping of the lifting tool within the support elements can be avoided.
    / 37
    N2018 / 09500 AT-00
    Furthermore, it can be useful if the lifting tool has a lever axis
    Torque amplification, an adjusting force which can be applied in the longitudinal direction to the lever device by means of a couplable extension.
    Such a lever axis can also be understood as a support point for the extension. The lever axis thus serves as a bearing for the extension to apply the adjusting force in the longitudinal direction to the lever device. A couplable extension has the advantage that it can be removed from the lifting tool after the lever device has been adjusted from the rest position to the service position. It is easy to imagine that the force of an operator can be significantly reduced by the translation through the extension in order to exert the required adjusting force in the longitudinal direction. Instead of the lever axis, the point of application can also be designed, for example, as a hole or recess on the profile body, preferably a hollow body.
    In addition, it can be provided that the extension is movably connected to the lifting tool on the lever axis.
    In certain cases it has proven advantageous that the extension is attached to the lifting tool. This prevents the extension from falling unintentionally and possible damage to connections of adjacent power modules. Loss of extension or forgetting within the medium or high voltage converter can also be avoided. Advantageously, the profile body has an exemption on the end face in the form of a bevel on the end face of the lifting tool, which enables the extension to be completely folded down in the service position and obstruction for a corresponding takeover device can be avoided.
    It can further be provided that the lifting tool has a motorized, preferably electromotive, drive unit on or within the profile body for adjusting the push rod in the longitudinal direction.
    / 37
    N2018 / 09500 AT-00
    The advantage of a motorized drive unit lies in the fact that a simple and comfortable application of the adjusting force in the longitudinal direction can be applied to the push rod in a small space. Such a drive unit can be designed hydraulically, pneumatically and preferably electrically and can transmit the adjusting force to the push rod via a suitable transmission device, such as a spindle, a gear, or the like, and initiate the adjustment of the push rod in a targeted manner. For this purpose, the push rod can be designed to be complementary in form and / or function. In addition, it is advantageous that such a motor drive is arranged on the end face of the lifting tool, which provides good accessibility for an operator. In addition, a motorized drive can be used in addition to a locking device or possibly alone, since the motorized drive can perform a locking function when switched off, which increases safety.
    Furthermore, it can be provided that at least one horizontally oriented cross element is arranged on the back of the frame in the longitudinal direction.
    Such a cross element serves primarily to connect two support elements of a receiving space. In this way, a frame that is open at the end is formed, which increases the rigidity of the frame and significantly simplifies a power module change, since the frame has no obstructing struts on the front side. Such a frame is preferably formed in one piece from a transverse element and two support elements, which can be made possible, for example, by welding in front of it, as a result of which the assembly of the frame can be significantly facilitated. Through this, the one-piece design of the open frame enables a reduction in screw connections, which offers advantages in terms of production and assembly technology. The cross element and / or the one-piece frame can be used as an additional support surface for load transfer of the power module.
    According to a special embodiment, it is possible to secure at least / 37 to prevent the power module from slipping in the longitudinal and / or transverse direction
    N2018 / 09500-AT-00 has a support element at least one locking elevation, which is excellently designed over the support plane in the vertical direction for engaging in a corresponding engagement opening on the supporting surface of the cooling device and / or at least one locking elevation on the cooling device over the supporting surface in the vertical direction is excellent Engagement in a corresponding engagement opening is formed on the support element.
    Such locking lugs secure the power module against slipping within the frame, should there be external vibrations, e.g. can happen in the event of an earthquake. A locking elevation can be designed as an extension of the support element and / or the cooling device opposite. It is also possible that a locking survey by e.g. a bolt or a screw head is formed. The locking lugs protrude in the vertical direction a few millimeters from the support plane or the support surface. When lifting the power module into the service position, the power module is deflected in the vertical direction via the locking lugs. In the reverse arrangement, the locking lifts are deflected via the support elements. In this way, blocking when changing the service can be prevented. Suitable engagement openings are provided on the support surface of the cooling device, or in the case of an inverted arrangement on the support elements, into which the locking lugs can engage in the rest position. This measure to prevent the power module from slipping is simple and inexpensive to implement.
    According to an advantageous development, it can be provided that the vertical standing elements are made of an electrically non-conductive profile element, in particular a square tube, preferably made of glass fiber reinforced plastic (GRP).
    This measure electrically isolates the individual receiving spaces of the frame. Different profile shapes, such as a C or H profile, can be used as profile elements. Due to the rigidity of a square tube, this training has proven to be particularly advantageous. In particular, the production from a glass fiber reinforced plastic / 37
    N2018 / 09500-AT-00 can realize the required electrical properties and with a high
    Combine rigidity and light weight. This makes GFK flame retardant, which can increase the safety of the modular holding and replacement system in the event of a short circuit in a power module.
    In particular, it can be advantageous if the vertical standing elements each have a plurality of lateral cutouts for at least partially receiving the support elements and / or the transverse elements.
    Such cutouts can be used to at least partially accommodate the support elements and / or the transverse elements in such a way that a comb connection is formed. The support element is therefore not on a screw connection, but on part of the cross section of the profile element. In this way, particularly good load support and transmission of the support elements compared to the vertical standing elements can be achieved. This enables a space-saving arrangement of the frame.
    Furthermore, it can be provided that the frame for connecting at least two receiving spaces in the transverse direction laterally and / or on the rear side has at least one electrically non-conductive strut, preferably made of GRP
    By designing such struts, the rigidity of the modular holding and replacement system or the frame can be significantly increased. The electrically non-conductive material of the strut prevents electrical connection between the individual receiving spaces.
    In addition, it can be provided that the frame between adjacent vertical standing elements each has an electrically non-conductive H-shaped or T-shaped stiffening profile, which is arranged to encase the vertical standing elements and is preferably made of GRP
    Such a stiffening profile is used for the mechanical connection of frames or receiving spaces arranged adjacent to one another in the transverse direction. In addition, such stiffening profiles can advantageously be used to / 37
    N2018 / 09500-AT-00 to attach coolant supply lines or fastenings for signal cables and the like, for example, without negatively affecting the strength of the vertical standing elements. The partially executed sheathing of the vertical standing elements increases the resilience of the frame in the vertical and / or transverse direction without forming an electrical connection between the individual receiving spaces.
    Also advantageous is a configuration according to which it can be provided that at least one coupling device for temporarily securing the power module in the rest position is formed on or within the cross element such that in each case one receiving opening for receiving a corresponding one on the rear of the power module, preferably as a pin or Has bolts with a groove and / or head formed retaining element in the service position.
    The interaction of the retaining element with the coupling device can be used to ensure the correct position of the power module on the frame. The coupling device can therefore serve as an end stop and / or centering device.
    When the power module is moved in, the retaining element in the service position is brought into engagement with the corresponding receiving opening of the coupling device arranged on or within the cross element. This serves to center and / or lock the power module. By adjusting the lifting tool into the rest position, the power module is lowered, whereby the retaining element is locked in the coupling device. The retaining element is preferably designed as a pin or bolt with a taper or groove or a corresponding head which is connected to the coupling device in the service position, that is to say in the raised state of the power module when it is inserted into the frame. The pin or bolt preferably has a head and / or a head which is widened relative to the pin diameter and which is locked at least on one side in the vertical direction from below when the coupling device is being lowered.
    / 37
    N2018 / 09500 AT-00
    In this way, in addition to centering and / or locking the power module in the receiving space of the frame, the power module can be secured in a highly efficient manner against slipping. This simple and inexpensive measure can significantly increase the security against unintentional changes in position in the event of external vibration initiation, such as an earthquake.
    To facilitate the change of the power module, it has proven to be advantageous if the lifting tool has an insertion stop on its end face in at least one vertical direction and / or transverse direction.
    As a result, the lifting tool can be carried out quickly and exactly when inserted into the profile element of the supporting element in the rest position, the exact position of the rolling bodies relative to the passage openings being able to be carried out quickly and easily.
    Furthermore, it has proven to be advantageous if the support elements have a reference stop in the longitudinal direction at the top on the top side.
    In addition to the coupling device or independently, this measure can increase the security against an insufficiently inserted power module. Advantageously, at least one stop element is formed on the power module in the transverse direction relative to the width of the power module, which element cooperates with the reference stop when it is inserted into the frame. Such a solution is relatively easy to manufacture and ensures that the power connections are aligned in a vertical plane on the front of the modular holding and exchange system.
    According to a further development, it is possible for coolant supply lines to be arranged on or within the vertical standing elements and / or for the support elements and for supply connections for connection to power module connections to have a cooling device of the respective power module on each receiving space.
    / 37
    N2018 / 09500 AT-00
    The coolant supply lines can also be arranged on the stiffening profile. This measure has the advantage that both the coolant supply lines and all supply connections for connecting the power module connections of the respective power module are very easily accessible to an operator. This enables simple assembly and a space-saving arrangement.
    Furthermore, it can be expedient if the supply connections and the corresponding power module connections are designed for automatic coupling when lowering into the rest position and / or uncoupling when lifting into the service position.
    It is advantageous here if the supply connections and the corresponding power module connections are designed as quick-release fasteners. The corresponding connection ends are preferably bent upwards or downwards, as a result of which when the service module is lowered into the rest position of the power module, the supply connections are automatically coupled to the power module connections. In this way, a very safe and fast coupling of the cooling device, in particular a cooling plate, to the coolant supply line can be carried out. In this way, long hanging hoses of the coolant supply are avoided and are not in the way when a power module needs to be changed. The closures are preferably designed in such a way that automatic decoupling occurs when the power module is raised into the service position. This enables the power module to be changed very quickly, since it is not necessary to depressurize or seal the supply and power module connections. Security against incorrect operation is also increased.
    The design of the modular holding and exchange system according to the invention promotes good accessibility of a take-over device to the frame or the individual receiving spaces. Such a transfer device can be used as a floor-mounted lifting device, in particular a lifting platform or stacker or / 37
    N2018 / 09500-AT-00 a crane device can be formed. The takeover device is aligned such that the takeover level is aligned with the service level in a horizontal plane. With the present instruction suitable transfer devices can be selected by a person skilled in the art and used according to the method according to the invention.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    Each show in a highly simplified, schematic representation:
    Fig. 1 oblique view of an embodiment of a modular holding and replacement system;
    Fig. 2 oblique view of an embodiment of a modular holding and replacement system with three power modules;
    Fig. 3 oblique view of an embodiment of a lifting tool;
    4 shows a schematic sectional illustration through part of an exemplary lifting tool with an extension in the rest position (a) and the service position (b);
    5 shows a schematic sectional illustration through part of an exemplary lifting tool with a motor drive in the rest position (a) and the service position (b);
    6 oblique view of an exemplary embodiment of a modular holding and exchange system with a coupling device (a) and principle of the locking function (b);
    Fig. 7 oblique view of an embodiment of a modular holding and replacement system with three power modules and connection to the coolant supply line (a), and detail of an exemplary connection for coolant (b).
    / 37
    N2018 / 09500 AT-00
    In the introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, and the disclosures contained in the entire description can be applied analogously to the same parts with the same reference numbers or the same component names. The location information selected in the description, e.g. above, below, to the side, etc., referring to the figure described and illustrated immediately, and if the position is changed, these are to be applied to the new position.
    1 shows a schematic illustration of a modular holding and exchange system 1 according to the invention. In the exemplary illustration, the frame 2 has a plurality of receiving spaces 3 arranged one above the other. These are used to receive a power module 4, which is supported on support surfaces 16 on the support elements 6 and thus comes to rest in the horizontal support plane 9 in the rest position 13. The frame 2 has at least two pairs of vertical standing elements 5. These are connected in the longitudinal direction 10 in the support plane 9 by support elements 6. In FIG. 1, cross elements 8 can also be seen, which each connect the support elements 6 in the transverse direction 11 on the rear side 25. Furthermore, two lifting tools 7 designed according to the invention can be seen from FIG. 1. The lifting tools 7 are provided for insertion into a supporting element 6, which is designed as a profile element. The lifting tools 7 are inserted from the end face 24.
    2 shows a further exemplary arrangement of the modular holding and exchange system 1 according to the invention in an oblique view. This shows three power modules 4, which are supported with their respective support surfaces 16 that protrude laterally relative to the housing width 15 of the power module on at least the support elements 6. The power modules 4 shown are in the rest position 13. From this illustration, the particularly space-saving arrangement of the power modules 4 in the respective receiving spaces 3 of the frame 2 can be seen very well.
    / 37
    N2018 / 09500 AT-00
    To increase the stability of the frame 2, stiffening profiles 34 can be provided. The stiffening profiles 34 are formed between the vertical standing elements 5 adjacent receiving spaces 3. In the present example, the stiffening profiles 34 have an H-shaped profile and are screwed to the vertical standing elements 5. The vertical standing elements 5 are at least partially encased by the stiffening profiles 34, which contributes to an increase in the transverse stiffness. In FIG. 2, struts 35 are also shown, which are provided for the mechanical connection of the receiving spaces 3 to one another. The non-conductive design of the struts 35 avoids an electrical connection of the individual receiving spaces 3 or power modules 4 to one another.
    3 shows a schematic illustration of a lifting tool 7. The lifting tool 7 has an elongated profile body 21. As shown by way of example in FIGS. 1 and 3, the profile body 21 is preferably designed as a hollow body or also as a hollow tube. Rolling bodies 19 which are adjustable in at least the vertical direction 12 are formed within the profile body 21. The rolling elements 19 are connected to a lever device 20 for adjustment from the rest position 13 into the service position 14. In the illustrated embodiment, all the lever devices 20 are each connected to a push rod 23 via a lever arm 22. The profile body 21 is shown in dashed lines to clarify the internal components. The push rod 23 is designed to be displaceable in the longitudinal direction 10.
    The actuation of the lever devices 20 can e.g. by means of an extension 26, as shown in FIGS. 3 and 4a, b. In this case, the adjusting force 33 is applied to the push rod 23 on the end face 24. Furthermore, two guide bodies 31 are shown schematically in FIG. 3 in broken lines. These guide bodies 31 can be arranged laterally in the transverse direction 11 and / or on an underside of the lifting tool 7. They enable the lifting tool 7 to be reduced in weight. The guide bodies 31 promote correct positioning of the lifting tool 7 when it is inserted into the carrying element 6. Fer18 / 37
    N2018 / 09500-AT-00 ner an import stop 39 can be seen from FIG. 3, which is formed on the underside of the lifting tool 7 on the end face 24. This simple one
    Measure allows the rolling bodies 19 to be positioned correctly in relation to the corresponding passage openings 18 of the support element 6.
    According to the invention, the lifting tool 7 therefore only has to be inserted into the support elements 6 when the power module 4 is changed. To clarify the functional principle when lifting the power assembly 4, a section of the lifting tool 7 in the rest position 13 and the service position 14 is shown schematically in FIGS. 4 and 5. In the rest position 13, FIGS. 4a and 5a, the rolling bodies 19 are hidden in the profile body 21. During the adjustment from the rest position 13 to the service position 14, FIGS. 4b and 5b, the rolling bodies 19 are deflected by means of the lever devices 20 in such a way that they emerge through the passage openings 18 of the support elements 6. The power module 4 is lifted into the service position 14 and can simply be transferred from the frame to a transfer device (not shown) by a movement in the longitudinal direction 10.
    The lifting tool shown in FIGS. 4a and 5a has a push rod 23 which is connected to all the lever devices 20. When the adjusting force 33 is applied, all the rolling elements 19 of the lifting tool 7 are thus brought into the service position 14 at the same time. As can be seen from FIGS. 4a and 4b, the application of the adjusting force 33 can be applied by a coupling extension 26. Such an extension 26 can be supported on the lifting tool 7 via a lever axis 32. It is also conceivable, instead of a bolt, as can be seen in FIGS. 4a and 4b, the lever axis 32 as, for example, a hole or an alternative embodiment of an abutment for applying the lever force.
    A further possibility of applying the adjusting force 33 is shown in FIGS. 5a and 5b, a motor drive unit 48 being shown as an example within the profile body 21 of the lifting tool 7. The motor drive unit 48 is preferably designed as an electric motor and is connected to the push rod 23/37
    N2018 / 09500-AT-00 operatively connected. As shown in FIG. 5, this can take place, for example, via a spindle, a non-positive and / or positive connection via a gearwheel or the like also being conceivable. When the preferably electromotive drive unit 48 is switched on, the adjusting force 33 is transmitted to the push rod in such a way that an adjustment in the longitudinal direction 10 takes place, this process being reversible. The drive unit 48 48 is, as shown in FIG. 5, preferably arranged on the end face 24 of the lifting tool 7, but can also be arranged hidden in the interior of the profile body 21, for example to to achieve an improved weight balance of the lifting tool 7. The adjustment from the rest position 13 to the service position 14, compare FIGS. 5a and 5b, is carried out analogously to the description of FIG. 4.
    In order to ensure that the lever devices 20 or the rolling elements 19 are fixed in the service position 14, it has proven to be advantageous to arrange a locking device 27 in the lifting tool 7. The locking device 27 is designed such that it automatically engages in a recess 28 when the push rod 23 is displaced in the longitudinal direction 10. By suitable selection of the weight ratios on the locking device 27, this automatic locking can take place due to gravity. It is also possible to apply a prestressing force 30 to the locking device 27 by means of, for example, a spring element 29. Such a locking device 27 is shown schematically in FIG. 4 and can also be applied analogously to the embodiment shown in FIG. 5.
    Furthermore, e.g. 4 that the lifting tool 7 has an exemption in the longitudinal direction 10 to the underside of the lifting tool 7 on the end face 24. In this way it is made possible that the extension 26 can be folded down completely in the vertical direction and thus does not stand in the way of a take-over device.
    An extension 26 can also be connected to the lifting tool 7 so as to be rotatable about a pivot point, such as the lever axis 32. Such an embodiment is shown in FIG. 3. Among other things, this contributes to the loss protection20 / 37
    N2018 / 09500-AT-00 extension 26 extension. The functional principle described makes it clear to the person skilled in the art that, by suitable selection of the translation, only a slight pressure by the machine operator is required in order to actuate the lever device 20.
    FIG. 6 shows a schematic illustration of an exemplary embodiment which provides a coupling device 36 on the frame 2. The coupling device 36 can, for example, be designed as a tab or receiving block with a receiving opening 37. The receiving opening 37 is designed such that a retaining element 38 of the power module 4 can be received when the power module 4 is inserted into the receiving space 3. The retaining element 38 is preferably designed as a taper pin or centering mandrel, thereby ensuring that the power module 4 is centered in the transverse direction 11. The retaining element 38 can be designed as a pin or bolt with a taper in the transverse direction 11, which is connected to the coupling device 36 in the service position 14, that is to say in the raised state of the power module 1 when it is inserted into the frame 2. The pin or bolt preferably has a head and / or a head which is widened relative to the pin diameter and which is locked by the coupling device 36 at least on one side in the vertical direction 12 from below when lowering. The interaction of the retaining element 38 and the coupling device 36 during insertion in the service position 14 can be seen in FIG. 6a. It can also be seen from FIG. 6 a that the formation of the support surface 16 of the power module is preferably formed on the cooling device 43. The coupling device 36 can also be used as an end stop in the longitudinal direction 10. 6b shows the principle of locking the power module 4 by means of the coupling device 36. The continuous line of the retaining element 38 indicates the state in the service position 14. The retaining element 38 preferably passes through the receiving opening 37 in the longitudinal direction. A retaining element 38 designed as a tapered pin or bolt with a groove and / or a head thus offers the advantage that a locking in the coupling device 36 occurs when lowering into the rest position 13. This is indicated in Fig. 6b by the dashed line of the retaining element 38 in the rest position 13.
    / 37
    N2018 / 09500 AT-00
    6a and 6b can be seen, for example, arranged locking lugs 46 on the upper side of the support element 6. The essentially complementary engagement openings 47 on the support surface 16 of the cooling device 43 are shown in dashed lines and serve to receive the locking lugs 46 in the rest position 13. For the sake of clarity, the opposite arrangement of locking lugs 46 on the support surface 16 of the cooling device 43 and the like is not shown formally and functionally complementary engagement openings 47 on the support element 6.
    6a that the vertical standing elements 5 can each have a plurality of lateral cutouts 45 for at least partially accommodating the support elements 6 and / or the transverse elements 8.
    7 shows a further embodiment of the modular exchange system, which may be independent. The same parts are again provided with the same reference numerals and include the preceding description with reference to FIGS. 1 to 6. In FIG. 7 a, three power modules 4 are shown schematically, which are connected via the power module connections 44 to the supply connections 42 to the coolant supply line 41. The schematic illustration in FIG. 7 a illustrates the principle that power modules 4 can be automatically connected to the coolant supply line 41 after a change. As an alternative to this form of representation, the formation of supply hoses is conceivable. When the power module 4 is lowered into the rest position 13, the power module connections 44 can be coupled to the corresponding supply connections 42, as can be seen in particular from FIG. 7b. In one embodiment, the power module connections 44 are bent downwards in the vertical direction in such a way that an automatic coupling to the corresponding supply connection 42 can take place.
    Furthermore, a stop element can be seen from FIG. 7 b, which is outstandingly designed on the cooling device 43 in the transverse direction 11. When the power module 4 is inserted into the frame 2, the stop element / 37 contacts
    N2018 / 09500-AT-00 of the cooling device 43 the reference stop 40 in the longitudinal direction 10. This simple measure can be used for the correct positioning of the power module 4 before lowering into the rest position 13. Such a reference stop 40 can be on at least one side on the respective support element 6 and / or
    Be vertical standing element 5 attached.
    The exemplary embodiments show possible design variants, it being noted at this point that the invention is not limited to the specially illustrated design variants of the same, but rather also various combinations of the individual design variants with one another are possible and this variation possibility is based on the teaching of technical action through the present invention Ability of the specialist working in this technical field.
    The scope of protection is determined by the claims. However, the description and drawings are to be used to interpret the claims. Individual features or combinations of features from the different exemplary embodiments shown and described can represent independent inventive solutions. The object on which the independent inventive solutions are based can be found in the description.
    All information on value ranges in the objective description is to be understood so that it includes any and all sub-areas, e.g. the information 1 to 10 is to be understood in such a way that all sub-areas starting from the lower limit 1 and the upper limit 10 are also included, i.e. all sections start with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure, elements have been partially shown to scale and / or enlarged and / or reduced.
    / 37
    N2018 / 09500 AT-00
    LIST OF REFERENCE NUMBERS
    1 exchange system 31 guide body 2 frame 32 lever axis 3 accommodation space 33 adjusting 4 Leistungsbaugruppel 34 stiffening profile 5 Vertically standing elements 35 brace 6 supporting member 36 coupling device 7 lifting tool 37 receiving opening 8th crossmember 38 Retaining element 9 support plane 39 import stop 10 longitudinal direction 40 reference stop 11 transversely 41 Coolant supply line 12 vertical direction 42 supply terminal 13 rest position 43 cooler 14 service position 44 Leistungsbaugruppenan- 15 housing widthEnough 16 support surface 45 recess 17 top 46 Arretiererhebung 18 Through opening 47 engagement opening 19 roll body 48 drive unit 20 lever device 21 profile body 22 lever arm 23 pushrod 24 front 25 back 26 renewal 27 locking device 28 recess 29 spring element 30 preload force
    / 37
    N2018 / 09500 AT-00
    权利要求:
    Claims (24)
    [1]
    claims
    1. Modular holding and exchange system (1) for medium or high voltage converters, preferably a modular multilevel converter, comprising:
    - A frame (2) for receiving at least two power modules (4) arranged one above the other in receiving spaces (3), the frame (2) having at least two pairs of vertical standing elements (5) and at least two vertical standing elements (5) in a longitudinal direction (10 ) of the frame (2) in a horizontal support plane (9) connecting support elements (6),
    - A with the frame (2) couplable lifting tool (7), which at least one, preferably at least two, between a rest position (13) and a support or. Service position (14) for temporarily lifting and / or moving a power module (4) comprises adjustable rolling elements (19), characterized in that
    - The power modules (4) in the transverse direction (11) with respect to a housing width (15) outstanding support surfaces (16) for support on the support elements (6) and
    - The support elements (6) have a top (17) provided to support at least parts of the support surface (16) of the respective power module (4) and are designed as profile elements such that each support element (6) has at least one, preferably at least two, each Passages (18) spaced apart in the longitudinal direction (10) for the passage of at least one rolling element (19) in the service position (14) of the lifting tool (7),
    - And wherein the lifting tool (7) comprises an elongated profile body (21), preferably hollow body, which can be inserted into the profile element of the support element (6) in the rest position (13) and in which a lever device (20) for adjusting the at least one rolling body (19), preferably the at least two rolling bodies (19) spaced apart in the longitudinal direction (10), from the rest position (13) to the service position (14).
    25/37
    N2018 / 09500 AT-00
    [2]
    2. Modular holding and exchange system (1) according to claim 1, characterized in that the lever device (20), with all in the longitudinal direction (10) arranged rolling elements (19) via a lever arm (22) to the profile body (21) movable connected, push rod (23) for simultaneous adjustment from the rest (13) to the service position (14).
    [3]
    3. Modular holding and exchange system (1) according to claim 1 or 2, characterized in that the lever device (20) from an end face (24) of the lifting tool (7) in the longitudinal direction (10), preferably by means of an extension (26), is actuated.
    [4]
    4. Modular holding and exchange system (1) according to one of claims 2 or 3, characterized in that the lifting tool (7) has a locking device (27) for temporarily blocking the push rod (23) in the service position (14) by engaging in a recess (28) on the push rod (23).
    [5]
    5. Modular holding and exchange system (1) according to claim 4, characterized in that the locking device (27) for automatic locking when adjusting the lever device (20) from the rest (13) to the service position (14), a spring element (29 ) for applying a prestressing force (30) between the profile body (21) and the push rod (23) or is mounted in the profile body (21) in such a way that the automatic locking can take place due to gravity.
    [6]
    6. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that at least one guide body (31) is arranged laterally and / or on an underside of the lifting tool (7) on the profile body (21) of the lifting tool (7).
    26/37
    N2018 / 09500 AT-00
    [7]
    7. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that the lifting tool (7) on or within the profile body (21) for adjusting the push rod (23) in the longitudinal direction (10) is a motorized, preferably electromotive, Has drive unit (48).
    [8]
    8. Modular holding and exchange system (1) according to one of claims 1 to 6, characterized in that the lifting tool (7) has a lever axis (32) for torque amplification, one in the longitudinal direction (10) on the lever device (20) by means of a couplable extension ( 26) applied adjusting force (33).
    [9]
    9. Modular holding and exchange system (1) according to claim 8, characterized in that the extension (26) with the lifting tool (7) on the lever axis (32) is movably connected.
    [10]
    10. Modular holding and exchange system (1) according to any one of the preceding claims, characterized in that at least one horizontally oriented cross element (8) in the longitudinal direction (10) on the frame (2) on the back, preferably to form a one-piece open-ended frame with the two sides adjoining support elements (6) is arranged.
    [11]
    11. Modular holding and replacement system (1) according to one of the preceding claims, characterized in that at least one support element (6) at least one to secure the power module (4) from slipping in the longitudinal (10) and / or transverse direction (11) Has locking elevation (46), which is designed in an excellent manner via the support plane (9) in the vertical direction (12) for engagement in a corresponding engagement opening (47) on the support surface (16) of the cooling device (43) and / or at least one locking elevation (46) on the cooling device (43) via the support surface (16) in the vertical direction (12) is designed to engage in a corresponding engagement opening (47) on the support element (6).
    27/37
    N2018 / 09500 AT-00
    [12]
    12. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that the vertical standing elements (5) are made of an electrically non-conductive profile element, in particular a square tube, preferably made of GRP.
    [13]
    13. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that the vertical standing elements (5) each have a plurality of lateral recesses (45) for at least partially receiving the support elements (6) and / or the transverse elements (8) ,
    [14]
    14. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that the frame (2) for connecting at least two receiving spaces (3) in the transverse direction (11) laterally and / or on the back (25) at least one has electrically non-conductive strut (35) preferably made of GRP.
    [15]
    15. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that the frame (2) between adjacent vertical standing elements (5) each has an electrically non-conductive H- or T-shaped, the vertical standing elements (5) arranged partially encasing , and preferably made of GRP (2), stiffening profile (34).
    [16]
    16. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that at least one coupling device (36) for temporarily securing the power module (4) in the rest position (13) is formed on or within the transverse element (8) that in each case one receiving opening (37) for receiving a corresponding retaining element (38) in the service position (14) on the rear side (25) of the power module (4), preferably as a pin or bolt with a groove and / or head. having.
    28/37
    N2018 / 09500 AT-00
    [17]
    17. Modular holding and exchange system (1) according to one of the preceding claims, characterized in that coolant supply lines (41) are arranged on or within the vertical standing elements (5) and / or the support elements (6) and on each receiving space (3) supply connections ( 42) for connecting to power module connections (44) have a cooling device (43) of the respective power module (4).
    [18]
    18. Modular holding and exchange system (1) according to claim 17, characterized in that the supply connections (42) and the corresponding power module connections (44) for automatic coupling when lowering into the rest position (13) and / or uncoupling when lifting into the service position ( 14) are formed.
    [19]
    19. A method for exchanging a power module (4) of a medium or high voltage converter, preferably a modular multilevel converter, comprising the method steps:
    - Provision of a frame (2), preferably according to one of claims 1 to 18, which frame (2) for receiving at least two power modules (4) of the medium or high-voltage converter which can be arranged one above the other, which frame (2) has at least two pairs of vertical standing elements (5 ) and at least two supporting elements (6) connecting the vertical standing elements (5) in a longitudinal direction (10) of the frame (2) in a horizontal support plane (9), and each supporting element (6) one for supporting at least parts of a support surface (16) of the respective power module (4) has the upper side (17) provided and is designed as a profile element such that at least one passage opening (18), preferably two passage openings (18) spaced apart in the longitudinal direction (10), for the passage of at least one rolling element in each case (19) are formed in a service position (14) of a lifting tool (7);
    - Provision of a lifting tool (7), preferably according to one of claims 1 to 18, which one in the profile element of the support element (6) in the Ru-
    29/37
    N2018 / 09500-AT-00 position (13) insertable, elongated profile body (21), in which a lever device (20) for adjusting the at least one
    Rolling body (19), preferably the at least two rolling bodies (19) spaced apart in the longitudinal direction (10), is formed from the rest position (13) into the service position (14),
    - Insertion of one lifting tool (7) in each of the two supporting elements (6) in the longitudinal direction (10) corresponding to the side of the power module (4) to be replaced in the transverse direction (11) until the rolling elements (19) are flush with the passage openings (18) the support element (6) are arranged,
    - Actuation of the lever device (20) of the lifting tool (7) to adjust the rolling elements (19) from the rest position (13) to the service position (14), the power module (4) to be replaced being replaced by the at least parts of the in the transverse direction (11) compared to its housing width (15) excellent supporting surfaces (16) contacting rolling body (19) is raised.
    [20]
    20. The method according to claim 19, characterized in that after lifting the power module (4) to be replaced, the power module (4) is moved horizontally in the longitudinal direction (10) onto a transfer device, after which it is replaced with an intact power module (4) or a repair takes place and then the intact power module (4) is moved in.
    [21]
    21. The method according to claim 19 or 20, characterized in that the two lifting tools (7) are actuated simultaneously.
    [22]
    22. The method according to any one of claims 19 to 21, characterized in that when inserted for centering and / or locking by means of at least on the rear side (25) of the power module (4), preferably designed as a taper pin or bolt with groove and / or head, retaining element (38) in the service position (14) with a corresponding receiving opening (37) of a coupling device (36) arranged on or within the cross element (8) in a
    30/37
    N2018 / 09500-AT-00 is brought handle and by adjusting the lifting tool (7) in the rest position (13) the power module (4) is lowered, whereby the retaining element (38) is locked in the coupling device (36).
    [23]
    23. The method according to any one of claims 19 to 22, characterized in that by adjusting the lifting tool (7) in the rest position (13) the power module (4) is lowered, a coupling of at least two power module connections (44) with corresponding supply connections (42) a coolant supply line (41).
    [24]
    24. The method according to claim 20, characterized in that a floor-mounted lifting device, in particular a lifting platform or forklift, or a crane device is used as the take-over device.
    31/37
    N2018 / 09500 AT-00

    Miba Energy Holding GmbH
    32/37

    33/37



    Miba Energy Holding GmbH
    34/37

    Miba Energy Holding GmbH
    35/37

    36/37


    37/37
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