• 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 device (1) for influencing reactive power flows in multiphase AC systems with a plurality of thyristor-controlled or thyristor-connected coil strands, each comprising a first part coil (4, 4 ', 4 ") and a second part coil (5, 5', 5") and wherein a first partial coil (4, 4 ', 4 ") and a second partial coil (5, 5', 5") each form a structurally independent coil module (13, 13 ', 13 ") the first part coil (4, 4 ', 4 ") in particular by at least 10% larger than the inductance value of the second part coil (5, 5', 5") and that in a coil assembly (13, 13 ', 13 ") the second partial coil (5, 5 ', 5 ") structurally arranged above the first partial coil (4, 4', 4") or the second partial coil (5, 5 ', 5 ") structurally in a core region of the first partial coil (4, 4 ', 4 ") is arranged. As a result, a device (1) for influencing reactive power flows is created, which, in conjunction with the most compact design, increases stability requirements, in particular with respect to dynamic loads, and which at the same time has reduced or minimized costs during production and operation.
    公开号:AT512385A1
    申请号:T9/2012
    申请日:2012-01-04
    公开日:2013-07-15
    发明作者:
    申请人:Coil Holding Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a device for influencing reactive power flows in multi-phase AC or three-phase systems having a plurality of thyristor-controlled or thyristor switched coil strands, wherein a first coil strand is connected to a first phase and a second phase of the AC system and another coil strand with the first phase and a further phase of the AC system is connected. Each coil strand comprises a first partial coil and a second partial coil, which partial coils are connected via two first, network-side electrical connections to the respective phase of the AC system and are connected via two second thyristor-side electrical connections with a thyristor unit connected between the partial coils. Furthermore, a first sub-coil and a second sub-coil each form a structurally independent coil subassembly, and the longitudinal center axes of the preferably hollow-cylindrical subcoils in the coil subassembly are aligned substantially vertically to a contact plane, in particular the ground or a building floor.
    Devices for influencing reactive power flows in multiphase, in particular three-phase alternating current system with a plurality of thyristor-controlled or thyristor switched coil strands between the phases of the AC system are basically known and form, for example, an essential component of so-called static var compensators (SVC) and other flexible AC transmission systems (flexible alternating current Transmission Systems, FACTS).
    It is also known to evenly divide the inductance of a spool line into two sub-coils or chokes in such devices and to switch the Thy-N2011 / 27300 transistors to achieve an improved short-circuit or ground fault protection between these two sub-coils. In this context, it is also known to combine the two, in particular structurally identical and thus efficiently produced partial coils of a coil strand in a structurally independent coil assembly and the sub-coils above all for reasons of space above each other, insulator or support elements on the one hand, the lower part of the coil opposite the lower support level or the ground and on the other hand the upper part of the coil relative to the lower part coil insulating support.
    A disadvantage of such a structure of the coil assemblies of a device for influencing reactive power flows in multiphase AC systems is especially their relatively low stability to dynamic loads such as earthquakes or forces acting transversely to the longitudinal center axes of the coil sections on this. The stability is adversely affected in particular by the relatively large overall height of the sub-coils arranged one above the other and also by the insulator or carrier elements between the sub-coils of a coil subassembly. In addition, further disadvantages result from an increase in the electrical losses and the material cost in the production due to the division of the inductances of the coil strands to two, in particular not completely magnetically coupled partial coils.
    The present invention has for its object to provide a device for influencing reactive power fuses in multi-phase AC systems, which in combination with a compact design increased stability requirements especially against dynamic loads is justified and which at the same time reduced or minimized costs during manufacture and operation having.
    The object of the invention is achieved by a device of the aforementioned type, in which the inductance value of the first part coil of a coil strand is dimensioned to be at least 10% greater than the inductance value of the second partial coil of a coil strand and in which Vorrich- N2011 / 27300 device in a Coil assembly, the second part of the spur is structurally disposed over the first part coil and the second, upper part coil is supported by the first, lower part coil.
    The object of the invention is solved independently by a device of the type mentioned, in which the inductance of the first coil part of a coil strand is dimensioned larger by at least 10% greater than the inductance value of the second coil part of a coil strand and in which device in a coil assembly, the second , Inner partial coil is structurally arranged in a core region of the first, outer partial coil.
    In this way, a device for influencing reactive power flows in multi-phase AC systems is provided, each having a first and a second coil part comprising coil assemblies having a lower center of gravity than the known from the prior art coil assemblies. Due to the lower center of gravity, the stability of the coil assemblies increases in particular against dynamic loads such as earthquakes. The reduction of the center of gravity of a coil assembly relative to the lower contact plane is according to the first advantageous embodiment by a reduction of the inductance and in particular by a facilitated or facilitated or reduced weight and / or height of the second, upper part coil and a corresponding increase in inductance and achieved in particular by an associated increase in the weight of the first, lower part coil.
    According to the second advantageous embodiment, the lowering of the center of gravity of a coil assembly relative to the lower contact plane is achieved primarily by arranging the second partial coil of the coil assembly in the core region of the first partial coil. Thus, the total height of a coil assembly can be reduced by up to 50%. Also, in such an embodiment, the insulator or carrier elements are saved between the sub-coils, whereby the stability is further increased in particular against strains in earthquakes or against lateral forces on the sub-coils on. Furthermore, N2011 / 27300 • * * ♦ · · «* · ** ·· m * · · · · · · * * · · · * * · · · · · ·
    the reduction of the inductance and, in particular, by a reduction or reduction of the outer diameter of the second, inner partial coil made possible thereby, ensures the most optimal possible construction of the partial coils arranged one inside the other. It is also particularly advantageous that, for example, a reduction of transport costs can be achieved by the much more compact structure of a coil assembly, in particular with regard to the space requirement in the vertical direction, and a simpler attachment of soundproofing measures such as, for example, an enclosure around a coil assembly is made possible.
    Basically, such an enclosure is considerably smaller and thus easier and cheaper ausbildbar, since the size of the coil assembly is reduced. Above all, however, the arrangement of the second subcoil in the core region of the first subcoil allows a very effective use of housings for sound reduction, which are at the potential of the first, outer subcoil and thus can be mounted very close to the outer subcoil. In this case, about to be observed isolation distances to the second part coil is not a problem, since the second part coil is located in the core region of the outer, first part coil.
    In this document, the core region of a hollow-cylindrical coil is understood to be an inner region of the coil and protrusion regions adjoining on each end side of the coil. The interior of the coil is delimited by the planes of a first end face and an opposite second end face of the coil. A protrusion area represents the cylindrical continuation of the interior of the coil and its height or length is limited to one third of the height or length of the cylindrical inner portion of the coil. A very large part of the total magnetic flux of the coil occurs in this core region.
    In the devices under consideration for influencing reactive power flows in multiphase AC systems, the total value of the inductance of a coil strand and thus the sum of the inductances of the first and the second partial coil are basically fixed by the desired reactive power influencing capacity. The minimum inductance of the second sub-coil for ensuring N2011 / 27300 6 -.:. : Sufficient short-circuit protection, in particular for limiting the maximum short-circuit current occurring in the event of damage or malfunction, is usually well below half the value of the total inductance of both partial coils. A different dimensioning of the first and the second partial coil with respect to their respective inductance is therefore possible in principle.
    In principle, the inductance of a partial coil is changed by an adaptation of the number of turns. To reduce the inductance, the number of turns is reduced and, in particular, the weight of the partial coil is reduced or its dimensions are reduced (height, outer diameter, etc.). To increase the inductance, the number of turns is increased and, in particular, the opposite effects occur. With a constant total inductance of the first and second partial coil, the following, very advantageous effect could now be determined. For the larger-sized part coil, the weight, the dimensions, the use of material in the manufacture, etc. increase less than these properties for the correspondingly smaller sized coil sink. In addition, this effect is all the more pronounced, the greater the inductance difference of the two coil sections. Thus, in the case of unequal-sized partial coils, in particular a smaller or lower and lighter coil module can be formed, although the overall inductance of the partial coils of the coil module remains constant.
    In addition to the structural advantages just mentioned, the electrical losses are reduced by the different dimensioning of the two partial coils with respect to their inductances, since the losses in the second, reduced partial coil, starting from a design with inductance values of equal magnitude, decrease more than they do in the first, correspondingly enlarged Part coil rise.
    It should also be mentioned at this point that the constructional advantages and reduced electrical losses just outlined can basically also be achieved if the second, smaller-sized partial coil were arranged below the first, larger-dimensioned partial coil in a coil module. However, N2011 / 27300 is not able to ensure sufficient stability, especially with respect to earthquakes, or only with considerable additional effort.
    Advantageous embodiments and developments of the invention will become apparent from the dependent claims and from the description in conjunction with the figures. It is advantageous if, when the partial coils are arranged one inside the other, the second partial coil of a coil module is arranged in the core region of the first partial coil such that the planes of an upper end side and a lower end side of the second partial coil are not outside of one another through the planes of an upper end side and a lower one Front side of the first part coil formed inner region of the first part coil are arranged. In this way, a particularly compact and stable coil assembly is created because the inner part coil does not protrude from the inner region of the outer part coil. It is also favorable if, in a coil subassembly, a middle cross-sectional plane of the first subcoil and a middle cross-sectional plane of the second subcoil lie in one plane. In this way, a coil assembly is provided in which the mechanical loads, in particular the preferably present, at least one holding device and the noise are reduced, since the particular periodically changing magnetic force between the partial coils of a coil assembly is reduced or minimized.
    In a device for influencing reactive power flows, wherein in the first coil strand, the first part coil are connected via their first, network-side electrical connection to the first phase of the AC system and the second part coil via their first, network-side electrical connection to the second phase of the AC system and in Further coil strand, the first part coil are connected via their first, network-side electrical connection to the other phase of the AC system and the second part coil via their first, network-side electrical connection to the first phase of the AC system, it is particularly advantageous if at least the first part coil from the first coil strand and the second sub-coil from the N2011 / 27300 further coil strand form a coil assembly and the first two, connected to the first phase of the AC system electrical connections of the first sub-coil and the second sub-coil zusa are mammengefasst and form a common electrical phase connection of the coil assembly.
    In this way, a more compact coil assembly is provided, with the particular cabling complexity is reduced, since such a coil assembly has only three instead of four ports. Namely, the two first electrical connections of the two partial coils are combined to form a common phase connection and this forms, together with the two second electrical connections of the two Teiispulen for connecting this with a thyristor unit, the three remaining connection points of a coil assembly.
    It is also advantageous if, when the partial coils are arranged one inside the other in a coil module, which partial coils originate from different coil strands, the second partial coil is wound in opposite directions to the first partial coil. This achieves an at least partial equalization of the phase positions of the currents in the coil sections of a coil module, as a result of which partial coils having higher inductance values are ensured due to improved magnetic coupling and lower electrical losses as a result of reduced compensation currents. For example, the phase shift of the currents in the coil sections of a coil assembly from -120 ° to 60 ° is reduced or halved by this measure in the presence of a three-phase three-phase system.
    It is also particularly advantageous if at least one holding device is designed for mechanically holding and stabilizing the partial coils of a coil module and an electrical connection between the partial coils is produced by the at least one holding device, so that the common electrical phase connection of the coil module is formed with the aid of the at least one holding device is. At least one such holding device is basically provided to support and stabilize the sub-coils of the coil assembly. In this case, for example, material savings in production and a reduction in the dimensions of the coil assembly can be achieved, N2011 / 27300 " · »G. When at least one holding device at the same time also implements the common electrical phase connection of the partial coils combined in the coil subassembly.
    In this context, it is also particularly advantageous if the at least one holding device is arranged between the first, lower part coil and the second, upper part coil of a coil subassembly and with an upper end side of the lower part coil and with a lower end side of the upper part coil is in direct electrical contact. In this way, the common electrical phase connection of the coil assembly is formed by the at least one holding device and in the stacking of the sub-coils, the insulator or carrier elements are saved between the sub-coils or such elements are not necessary. This contributes to a more compact construction of the coil assemblies and in particular to an increased stability against dynamic loads such as earthquakes. In such an embodiment, preferably at least two further, electrically non-interconnected holding devices are arranged on a lower end side of the lower part coil and an upper end side of the upper part coil, so that in each case a second electrical connection for connecting the coil assembly is formed with a thyristor.
    In such an embodiment of the superimposed partial coils, it is further particularly advantageous that soundproofing devices, in particular enclosures which are preferably at the potential of the respective sub-coil, are continuously attachable to the outer sides of the two sub-coils, since no isolation distance between the sub-coils is necessary because the at least one adhesive device electrically connects the mutually facing end faces of the two sub-coils arranged one above the other and thus there is no potential difference in this region. Such continuous soundproofing devices have a very high efficiency. N2011 / 27300 '9 -
    It is also very advantageous if, when the partial coils are arranged one inside the other, the at least one holding device is arranged under the first, outer partial coil and the second, inner partial coil of a coil module and is in direct electrical contact with the lower end sides of the two partial coils. In this way, the common electrical phase connection of the coil assembly is formed by the at least one holding device and it is a very compact coil assembly created with respect to the riot plane particularly low center of gravity. In such an embodiment, preferably at least two further, not electrically interconnected holding devices are arranged on upper end sides of the two sub-coils, so that in each case a second electrical connection for connecting the coil assembly is formed with a thyristor. It is also favorable if, when the sub-coils are arranged one inside the other, the at least one holding device which forms the common electrical phase connection rests on a plurality of electrically insulating carrier elements, so that the coil subassembly is arranged at a distance from the lower contact plane, and the electrically insulating carrier elements are arranged along a first Web vertically below the first sub-coil and along a second web vertically below the second sub-coil, in particular at regular intervals along the respective web are arranged. In this way, an ideal support or transmission of the weight of the two sub-coils of a coil assembly on the electrically insulating support elements is ensured on the lower Aufstandsebene and the at least one holding device can be weaker or smaller and thus weight and material-saving dimensioned.
    It is also advantageous if, when the partial coils are arranged one inside the other, the at least one holding device which forms the common electrical phase connection has an outer section for holding the first partial coil and an inner section for holding the second partial coil of the coil module and if the outer section and the inner portion of the holding device are interconnected via one or more decoupling elements. In this way, structure-borne sound transmissions between the sub-coils of the coil subassembly, in particular from the inner sub-section to the outer sub-coil, are at least reduced and fewer and thus lighter soundproofing measures are required or simpler and thus cheaper sound insulation measures replaceable. The decoupling elements also prevent mechanical stresses in the at least one holding device due to thermal expansion and thus prevent, for example, mechanical damage to a coil assembly.
    In a device for influencing reactive power flows, in which the AC system comprises three phases and the device comprises three coil strands, it is advantageous if the first part coil of the first coil strand and the second part coil of a third coil strand are connected to the first phase and form a first coil assembly and the first sub-coil of a second coil string and the second coil of the first coil-string are connected to the second phase and form a second coil assembly, and the first coil of the third coil and the second coil of the second coil are connected to a third phase and a third coil Form coil assembly. In this way, a particularly compact and stable TCR arrangement for a three-phase AC system is created in which in addition to lower electrical losses during operation also incur lower costs in the production. It is also favorable if the first sub-coil of a coil assembly comprises a plurality of hollow cylindrical winding layers concentrically arranged with respect to the longitudinal center axis of the first sub-coil, wherein the plurality of winding layers are electrically connected in parallel and magnetically coupled, and if the second sub-coil of a coil assembly is a single hollow-cylindrical winding layer includes, wherein the second sub-coil is also arranged concentrically to the longitudinal central axis of the first sub-coil. In this way, on the one hand, the stability of a coil assembly with respect to dynamic loads or loads is increased transversely to the contact plane, since the center of gravity of a coil assembly in the vertical direction as centrally or centrally over the footprint of the coil assembly on the lower level of support. In addition, N2011 / 27300 - * t1 - · the concentric arrangement also reduces the magnetic forces between the Teii coils and thus the mechanical stress on the coil assembly and the noise. On the other hand, the electrical losses are reduced in a partial coil with a plurality of electrically parallel-connected winding layers, since the ohmic resistance is reduced in such a partial coil.
    It is particularly advantageous if the inductance of the second partial coil is 0.1% to 30%, in particular 0.3% to 20%, preferably 0.5% to 10%, of the total inductance of the second partial coil and of the corresponding first partial coil. These ranges of values define the best possible inductance ratios for the two partial coils, so that, on the one hand, the second partial coil provides sufficient short-circuit protection and, on the other hand, the lowest possible electrical losses occur in the second partial coil.
    It is particularly favorable when the inductance value of a second partial coil is selected to be so high that, in the event of a short-circuit due to a short-circuit current occurring across the second partial coil and the thyristor unit connected thereto, the maximum permissible current load value of this thyristor unit is not exceeded, in particular the short-circuit current has a value of 25 kA does not exceed. On the one hand, such an upper limit for the maximum short-circuit current reliably protects the thyristor unit from damage and destruction and, on the other hand, reduces the maximum inductance value of a second sub-coil so that this sub-coil is relatively small and easy to form compared to the first sub-coil and causes relatively little additional electrical losses ,
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    In each case, in a highly simplified, schematic representation:
    1 is a circuit diagram of an apparatus for compensating reactive power flows in multi-phase AC systems; N2Q11 / 27300
    FIG. 2 shows a variant of a coil assembly for the device from FIG. 1 with partial coils arranged one above the other in a first perspective view; FIG.
    FIG. 3 shows the coil assembly of FIG. 2 in a further perspective view; FIG.
    FIG. 4 shows the coil subassembly from FIG. 2 in a sectional view according to the sectional plane IV indicated in FIG. 2; FIG.
    5 shows a variant of a coil assembly for the device of FIG. 1 with sub-coils arranged one inside the other in a first perspective view;
    FIG. 6 shows the coil assembly of FIG. 5 in a further perspective view; FIG.
    FIG. 7 shows the coil assembly from FIG. 5 in a sectional illustration according to the sectional plane VII indicated in FIG. 5.
    By way of 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, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position.
    Fig. 1 shows a circuit diagram of a device 1 for influencing reactive power flows in a three-phase AC system, as known from the prior art. Such a device 1 is not limited to a three-phase AC system, but can be formed in an analogous manner for an AC system with more phases. N2011 / 27300 • * * * · ·· ♦ · - * t3 - *
    In the present case, the multiphase AC system has a first phase L1 2, a second phase L2 2 'and a third phase L3 2 ". Between the phases 2, 2 ', 2 "of the AC system, a first spur train 3, a second coil train 3' and a third coil train 3" of the device 1 for influencing reactive power flows are arranged in a triangular circuit.
    In this case, the first coil strand 3 comprises a first partial coil LA1 4, a second partial coil LB1 5 and a thyristor unit 6 connected between the partial coils 4, 5. The two partial coils 4, 5 of the coil strand 3, which are preferably hollow cylindrical air coils, are each connected to a first electrical connection 7, 8 connected to the corresponding phase 2, 2 'of the AC system. Furthermore, the partial coils 4, 5 are each connected to a second electrical connection 9, 10 with the thyristor unit 6 connected between the partial coils 4, 5. Such a thyristor unit 6 comprises, in particular, two thyristors 11, 12 connected in opposite directions, or generally at least one semiconductor element with control and / or switching functions for influencing the coil strand 3. The second coil strand 3 'and the third coil strand 3 "from FIG. 1 are basically identical constructed as the first coil strand 3 and include the same elements, in particular further first part coils LA2 4 'and LA3 4 "and further second Teilspuien LB2 5' or LB3 5".
    From the prior art, it is now basically known to combine a first part coil 4, 4 ', 4 "and a second part section 5, 5', 5" and in each case to form a structurally independent coil subassembly 13, 13 ', 13 ". The two partial coils 4, 4 ', 4 ", 5, 5', 5" are of identical construction and thus have approximately the same inductance values.
    In the present case, however, a first partial coil 4, 4 ', 4 "and a second partial coil 5, 5', 5" of the coil strands 3, 3 ', 3 "or the coil assemblies 13, 13', 13" are different with respect to their inductance values dimensioned. In particular, a first partial coil 4, 4 ', 4 "has an inductance which is at least 10% greater than a second partial coil 5, 5', 5". It has proven particularly expedient to dimension the second partial coil 5, 5 ', 5 "so that their inductance N2011 / 27300 is 0.1% to 30%, in particular 0.3% to 20%, preferably 0.5%. to 10% of the sum of the inductances of the second partial coil 5, 5 ', 5 "and corresponding first partial coil 4,4', 4" constitutes.
    In principle, the inductance value of the second partial coil 5, 5 ', 5 "is selected to be so high that, in a short circuit, a short circuit current flowing through the second partial coil 5, 5', 5" and a thyristor unit 6, 6 ', 6 "connected thereto maximum permissible current load value of the thyristor unit 6, 6 6 "is not exceeded or that the short-circuit current does not exceed a value of 25 KA.
    2-4 are various views of a first embodiment of a Spuienbaugruppe 13,13 ', 13 "shown, in which the second, smaller-sized part coil 5, 5', 5" structurally above the first part coil 4,4 ', 4th Is arranged and the second sub-coil 5, 5 ', 5 "of the first sub-coil 4, 4', 4" is worn. The corresponding views of a second embodiment of a coil assembly 13, 13 ', 13 "in which the second, smaller-sized partial coil 5, 5', 5" is structurally arranged in a core region 14 of the first partial coil 4, 4 ', 4 "are to take Figs. 5-7.
    Common to all these coil assemblies 13, 13 ', 13 "that the longitudinal center axes 15 of the two coil sections 4,4', 4", 5, 5 ', 5 "in a coil assembly 13,13', 13" substantially vertical to one Level 16 are aligned. The support level 16 is realized in particular by the ground or a building floor or a building foundation.
    In the embodiments, the first, lower, and outer sub-coils 4, 4 ', 4 " composed of a plurality of hollow cylindrical and with respect to the longitudinal center axis 15 of the sub-coil 4, 4 ', 4 "concentrically arranged winding layers 17, said winding layers 17 are electrically connected in parallel and magnetically coupled. The winding layers 17 are held by means of spacers 18 at a distance. The second, upper or inner part coil 5, 5 ', 5 "preferably comprises only a single winding layer 17, which is also arranged concentrically to the longitudinal central axis 15. N2011 / 27300
    1S '
    According to a preferred embodiment, in each case the first and second sub-coil 4, 4 ', 4 ", 5, 5', 5" are each combined into a structurally independent coil subassemblies 13, 13 ', 13 ", which have their corresponding first electrical connection 7 , 7 7 ", 8, 8 ', 8" are connected to the same phase 2, 2', 2 "of the AC system (see Fig. 1). In the three-phase alternating current system thus form the first coil part 4 of the first coil strand 3 and the second coil part 5 "of the third coil strand 3", the first coil assembly 13 and connected to the first phase 2 of the AC system first electrical connections 7, 8 "are interconnected and form a In common manner, the first sub-coil 4 'of the second coil strand 3' and the second sub-coil 5 of the first coil strand 3 form a second coil assembly 13 'and connected to the second phase 2' of the AC system first electrical connections 7 ', 8 are interconnected to form a common electrical phase connection 19' of the second coil assembly 13 '. Similarly, the first part coil 4 "of the third coil strand 3" and the second part coil 5 'of the second coil strand 3 "form a third coil assembly 13" and their first electrical connections 7 ", 8' connected to the third phase 2" of the AC system are closed a common electrical phase connection 19 "of the third coil assembly 13" interconnected.
    In FIGS. 2-4 and 5-7, coil assemblies 13, 13 ', 13 "with first partial coils 4, 4', 4" and second partial coils 5, 5 ', 5' are made of different coil strands 3, 3 ', 3 ". in the different embodiments with a coil arrangement one above the other or a coil arrangement shown in detail. Of course, it is also possible in principle to form corresponding coil assemblies 13, 13 ', 13 "with first partial coils 4, 4', 4" and second partial coils 5, 5 ', 5 "from the same coil strands 3, 3', 3" and the two arrange respective sub-coils 4,4 ', 4 ", 5, 5', 5" one above the other or in each other. However, it is then not possible to form a common electrical phase connection 19, 19 ', 19 "in a coil subassembly 13, 13% 13". Likewise, the two sub-coils 4,4 ', 4 ", 5, 5', 5" of such an alternative coil assembly 13,13 ', 13 "vonei- N2011 / 27300 nander must be electrically isolated or arranged in compliance with certain minimum distances.
    In the embodiments shown, a coil assembly 13, 13 ', 13 "according to FIGS. 2-7 is at least one holding device 20 for mechanical support and stabilization of the partial coils 4, 4 4", 5, 5', 5 "ausgeiidet. With this at least one holding device 20 is an electrical connection between the coil sections 4, 4 ', 4 ", 5, 5', 5" of the respective coil assembly 13, 13 ', 13 "prepared and thus at the same time the corresponding common phase connection 19, 19% 19 "of the respective coil assembly 13, 13 ', 13" formed. The at least one retaining device 20 of the coil assembly 13, 13 ', 13 "is preferably designed as a winding star with a plurality of retaining legs running radially to the longitudinal central axis 15 of the partial coils 4, 4', 4", 5, 5 ', 5 "
    In the embodiment of a coil assembly 13, 13 ', 13 "shown in Figs. 2-4, in which the sub-coils 4,4', 4", 5, 5 5 " are arranged one above the other, the at least one holding device 20 between the first, lower part coil 4, 4 ', 4 "and the second, upper part coil 5, 5', 5" arranged. The at least one holding device 20 is electrically connected to an upper end side 23 of the first part coil 4, 4 ', 4 "and to a lower end side 24 of the second part coil 5, 5', 5" and the common electrical phase connection 19, 19 ', 19 "Of the coil assembly 13, 13 ', 13" is formed by the at least one holding device 20. The at least one holding device 20 itself is formed from two stacked and electrically connected winding stars. Furthermore, in this embodiment, two further, non-interconnected Haitevorrichtungen 21,22 on a lower end face 25 of the first part coil 4, 4 ', 4 "and an upper end face 26 of the second part coil 5, 5', 5" arranged, which holding devices 21, 22 each form a second electrical connection 9, 9 ', 9 ", 10, 10', 10" for connecting a coil assembly 13, 13 ', 13 "to a thyristor unit 6, 6', 6".
    As can be seen in FIGS. 2-4, a coil assembly 13, 13 ', 13 "rests on a plurality of electrically insulating support members 27 which are disposed below the lower bracket 21 and the coil assembly 13, 13', 13". space or isolate from the lower riser 16. An electrically insulating carrier element 27 comprises an insulating body 36 and a preferably profile-like supporting body 37 arranged underneath.
    In the embodiment shown in FIGS. 5-7, in which the sub-coils 4, 4 ', 4 ", 5, 5', 5" are arranged inside one another, the at least one holding device 20 is below the first sub-coil 4, 4 ', 4 "and the second sub-coil 5, 5 ', 5" of a coil assembly 13,13', 13 "arranged and the lower end faces 24, 25 of the two sub-coils 4,4 ', 4", 5, 5', 5 "are in a direct electrical contact with the at least one holding device 20. As a result, the common electrical phase connection 19,19 ', 19 "of the coil assembly 13,13', 13" is formed. Two further, electrically non-interconnected holding devices 21, 22 are at the upper end faces 23, 26 of the two sub-coils 4, 4 ', 4 ", 5, 5 5 " which holding devices 21, 22 each form a second electrical connection 9, 9 ', 9 ", 10, 10', 10" for connecting the coil assembly 13, 13 ', 13 "to a thyristor unit 6, 6', 6".
    As can be seen in FIGS. 5-7, a holding device 21 can also be constructed from a plurality of individual holding webs.
    The holding devices 20, 21 arranged on the respective front side 23, 25 of the first partial coil 4, 4 ', 4 "are designed so that the individual winding layers 17 of the first partial coil 4, 4', 4" are electrically connected in parallel through them.
    In the case of a coil assembly 13, 13 ', 13 "with sub-coils 4, 4', 4", 5, 5 5 "arranged inside one another, it is expedient to provide a plurality of electrically insulating carrier elements 27 below the at least one holding device 20, which comprises the two sub-coils 4, 4 ', 4 ", 5, 5', 5" holds or carries, to arrange. In the embodiment illustrated in FIGS. 5-7, the electrically insulating support members 27 are vertically below the first sub-coil 4, 4 ', 4 "along a first, circular path and vertically below the second sub-coil 5, 5 along a second, circular path ', 5 "attached at regular intervals along the respective path. The first group of electrically insulating carrier elements 27 is therefore directly N2011 / 27300 .PHI. * .PHI .Itt... *. *. * .PHIφφφφφφ.PHI. Is disposed half of the first outer partial coil 4, 4 ', 4 "of the coil assembly 13, 13', 13" and the second group of electrically insulating support elements 27 is directly under the second, inner sub-coil 5, 5 ', 5 "of the coil assembly 13, 13', 13 " arranged. All the electrically insulating support elements 27 together ensure that the coil assembly 13,13 ', 13 "opposite the lower support level 16, which is formed for example by the ground or an indoor floor, spaced and arranged electrically insulating.
    As best shown in FIG. 6, the at least one holding device 20, which forms the common electrical phase connection 19, 19 ', 19 "of a coil assembly 13, 13', 13", is formed in an outer section 28, which is the first, outer sub-coil 4, 4 ', 4 "carries and in an inner portion 29, which the second, inner sub-coil 5, 5', 5 " carries, divides. In the present case, the outer portion 28 of the holding device 20 is made up of a plurality of individual and radial to the longitudinal central axis 15 of the coil assembly 13, 13 ', 13 " running holding webs formed. At least a portion of the retaining webs of the outer portion 28 of the holding device 20 is connected via decoupling elements 30 with the inner portion 29 of the holding device 20, wherein the inner portion 29 of the holding device 20 is formed by a winding star with a plurality of radially extending to the longitudinal central axis 15 holding legs.
    In the decoupling elements 30, various embodiments are possible. On the one hand, these decoupling elements can be designed, for example, as stable angle elements which have a certain elasticity in the radial direction. At the same time, these angular elements transmit part of the weight of the second, inner partial coil 5, 5 ', 5 ", which bears weight on the inner section 29 of the retaining element 20, on the outer section 28 of the retaining element 20 and on the electrically insulating support elements 27 of the outer Section 28 of the retaining element 20, the weight is passed on to the support level 16. Thus, at least a part of the electrically insulating carrier elements 27 of the inner portion 29 of the holding device 20 can be saved or it is even possible to completely dispense with such electrically insulating carrier elements 27 in the region of the inner portion 29. N2011 / 27300
    To achieve the greatest possible mechanical decoupling of the outer portion 28 and the inner portion 29 of the holding device 20, in particular to avoid structure-borne sound and vibration transmissions or mechanical stresses in the holding device 20, it may also be provided, the decoupling elements 30, for example, as a flexible Forming stranded cable. In this case, electrically insulating support elements 27 are also absolutely necessary in the region of the inner portion 29 of the holding device 20 in order to receive the weight of the second, inner partial coil 5, 5 ', 5 "and to transmit them to the lower contact plane 16.
    When the first partial coil 4, 4 ', 4 "and the second partial coil 5, 5', 5" are arranged one inside the other, it is particularly expedient for the second partial coil 5, 5 ', 5 "to be opposite to the first partial coil 4, 4', 4" ; to wrap. As indicated in FIG. 6, in such a case the first, outer partial coil 4, 4 ', 4 "is wound with a first winding sense 31 and the second, inner 5, 5', 5" with an opposite thereto , second winding 32 wound.
    As can be seen in FIGS. 5-7, in the illustrated embodiment of sub-coils 4, 4 ', 4 ", 5, 5', 5" arranged inside one another, the second, inner sub-coil 5, 5 ', 5 "is thus in the core region 14 the first, outer sub-coil 4, 4 ', 4 "arranged that the fixed by the upper end face 26 and the lower end face 24 levels of the second sub-coil 5, 5', 5 " are not arranged outside an inner region 33 of the first part coil 4,4 ', 4 ". In this case, the inner region 33 is defined by the planes of an upper end face 23 and a lower end face 25 of the first, outer part coil 4, 4 ', 4 ".
    In the illustrated embodiment of the nested coils 4, 4 ', 4 ", 5, 5', 5", the two coil sections 4, 4 ', 4 ", 5, 5', 5" in particular the same axial height and their upper end faces 23 and 26 and their lower end faces 25 and 24 are thus each in a plane. As already explained earlier and illustrated graphically in FIG. 7, the core region 14 of a first partial coil 4, 4 ', 4 "extends in each case by one third of the height or length of the inner region 33 of the first partial coil 4, 4', 4" N2011 / 27300 ···· t · · · · · ♦ · · · ♦ Part of the coil 4, 4 ', 4 "out of the inner region 33 out ¬. The above applies in an analogous manner also to an inner area or core area of the second partial coil 5, 5 ', 5 "not shown in the drawing.
    As best seen also in Fig. 7, in an embodiment of nested sub-coils 4, 4 ', 4 ", 5, 5', 5", it is particularly useful when in a coil assembly 13, 13 ', 13 " a middle cross-sectional plane 34 of the first partial coils 4, 4 ', 4 " with a middle cross-sectional plane 35 of the second sub-coil 5, 5 ', 5 "coincide and thus a common plane is formed or the first sub-coil 4, 4', 4" and the second sub-coil 5, 5 ', 5 "with respect to their vertical orientations are positioned centered to each other.
    In the coil assemblies 13, 13 ', 13 "according to the embodiments in Figs. 2-7 particularly effective and at the same time easy or inexpensive soundproofing measures can be used. Soundproofing devices such as housings or sheathing of a coil assembly 13, 13 ', 13 "(not shown in FIGS. 2-7) are in fact very close and above all uninterrupted around the first, lower 4, 4', 4" and second upper Part coil 5, 5 ', 5 "or around the first, outer part coil 4, 4', 4" and thus at the same time also about the second, inner part coil 5, 5 ', 5 "attachable. Such a soundproofing device is fastened in particular to the Hattelementen 20-22 and / or to the sub-coils 4, 4 ', 4 ", 5, 5', 5" of a Spuienbaugruppe 13,13 ', 13 ".
    For the sake of order, it should finally be pointed out that in order to better understand the structure of the device for influencing reactive power flows, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size. All statements on ranges of values in the description of the present invention should be understood to include any and all sub-ranges thereof, e.g. the indication 1 to 10 should be understood to include all sub-ranges, starting from the lower limit 1 and the upper limit 10, i. all sub-ranges start with a lower limit of 1 or greater and N2011 / 27300
    Ml · 9449 4 9 4 9 9 9 9 4 94 ·· 49 II ·
    • t φ «f t M • 9 4 9 9 4 9 4 4 4 9 4 4 9 • · · M * · * 94 * 94 994 ends 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.
    The embodiments show possible embodiments of the device for influencing reactive power flows, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching of technical action by objective invention in the skill of working in this technical field expert. So are all conceivable embodiments, which are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description.
    Above all, the individual in Figs. 1; 2-4; 5-7 embodiments form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures. N2011 / 27300 - 22 - .. »····;
    Reference 1 Device 32 Winding sense 2 First phase 33 Interior 2 'Second phase 34 Average cross-sectional plane 2 "Third phase 35 Average cross-sectional plane 3 First coil strand 36 Insulation body 3' 3 " Second coil strand Third coil strand 37 Supporting element 4,4 ', 4 "first partial coil 5,5 5" Second partial coil 6,6', 6 "Thyristor unit 7, T, T First electrical connection 8,8 8" First electrical connection 9, 9 ', 9 [< Second electrical connection 10,101.10 " Second electrical connection 11, 11 ', thyristor 12, 12', 12 "thyristor 13, 13 ', 13" Coil assembly 14 Core region 15 Longitudinal center axis 16 Riot level 17 Winding layer 18 Spacer 19, 19, 19 "Common electrical phase connection 20 Holding device 21 Holding device 22 Holding device 23 Upper end face 24 Lower end face 25 Lower end face 26 Upper end face 27 Support element 28 Outer section 29 Inner section 30 Decoupling element 31 Winding sense N2011 / 27300
    权利要求:
    Claims (15)
    [1]
    1. A device (1) for influencing reactive power flows in multiphase AC systems having a plurality of thyristor-controlled or thyristor-connected coil strands (3, 3 "), wherein a first coil strand (3) having a first phase (2) and a second phase (2 ') of the AC system is connected and another coil strand (3 ") to the first phase (2) and another phase (2") of the AC system is connected and wherein each coil strand {3, 3 ") a first partial coil (4, 4 ") and a second partial coil (5, 5"), which partial coils (4, 4 ", 5, 5") via first electrical connections (7, 7 ", 8, 8") each with the corresponding phase (2, 2 ', 2 ") of the alternating current system are connected and via second electrical connections (9, 9", 10, 10 ") with a thyristor unit connected between the partial coils (4, 4", 5, 5 ") (6, 6 ") are connected and wherein a first part coil (4 , 4 ") and a second Teilspuie (5, 5") each form a structurally independent coil assembly (13) and the longitudinal center axes (15) of the sub-coils (4, 4 ", 5, 5") in the coil assembly (13) substantially vertically aligned to a support plane (16), characterized in that the inductance value of the first sub-coil (4,4 ") is dimensioned in particular by at least 10% larger than the inductance value of the second sub-coil (5, 5") and that in a coil assembly (13) the second partial coil (5, 5 ") is arranged structurally over the first partial coil (4, 4") and the second partial coil (5, 5 ") is supported by the first partial coil (4, 4").
    [2]
    2. Device (1) for influencing reactive power flows in multiphase AC systems with a plurality of thyristor-controlled or thyristor switched coil strands (3, 3 "), wherein a first coil strand (3) having a first phase (2) and a second phase (2 ') of the AC system and another coil string (3 ") is connected to the first phase (2) and a further phase (2") of the alternating current system and wherein each coil string (3, 3 ") has a first partial coil (4, 4") and a second sub-coil (5, 5 "), which sub-coils (4, 4", 5, 5 ") via first electrical connections (7, 7", 8, N2Q11 / 27300 -2- .. ···· λ m 8 ") are each connected to the corresponding phase (2, 2 ', 2") of the AC system and via second electrical connections (9, 9 ", 10, 10") with one between the sub-coils (4, 4 ", 5 , 5 ") connected thyristor unit (6, 6") are connected and wherein a first partial coil (4, 4 ) and a second Teiispule (5, 5 ") each form a structurally independent coil assembly (13) and the longitudinal center axes (15) of the Teiispulen (4, 4", 5, 5 ") in the coil assembly (13) substantially vertical to one Aufstandsebene (16) are aligned, characterized in that the inductance value of the first part coil (4, 4 ") in particular by at least 10% larger than the inductance value of the second part coil (5, 5") and that in a coil assembly (13) the second partial coil (5, 5 ") is structurally arranged in a core region (14) of the first partial coil (4,4").
    [3]
    3. Device (1) according to claim 2, characterized in that the second Teiispule (5, 5 ") of a coil assembly (13) in the core region (14) of the first part coil (4, 4") is arranged, that the planes of a upper end face (26) and a lower end face (24) of the second part coil (5, 5 ") are not formed outside of one through the planes of an upper end face (23) and a lower end face (25) of the first part coil (4, 4") Inner region (33) of the first part coil (4,4 ") are arranged.
    [4]
    4. Device (1) according to claim 2 or 3, characterized in that in a coil assembly (13) has a mean cross-sectional plane (34) of the first part coil (4, 4 ") and a middle cross-sectional plane (35) of the second part coil (5, 5 ") lie in one plane.
    [5]
    5. Device (1) according to one of the preceding claims, characterized in that in the first coil strand (3), the first part coil (4) via its first electrical connection (7) with the first phase (2) of the AC system and the second sub-coil ( 5) are connected via their first electrical connection (8) to the second phase (2 ') of the alternating current system and in the further coil section (3 "), the first part coil (4") via its first electrical connection N2011 / 27300 -3- ** (7 ") are connected to the further phase (2") of the AC system and the second sub-coil (5 ") are connected via their first electrical connection (8") to the first phase (2) of the AC system in that the first partial coil (4) of the first coil strand (3) and the second partial coil (5 ") of the further coil strand (3") form a coil assembly (13) and the first two, with the first phase (2) AC system connected electrical Connections (7, 8 ") of the first part coil (4) and the second part coil (5") are combined and form a common electrical phase connection (19) of the coil assembly (13).
    [6]
    6. Device (1) according to claim 2 and 5, characterized in that in a coil assembly (13) the second part coil (5, 5 ") in opposite directions to the first part coil (4, 4") is wound.
    [7]
    7. Device (1) according to claim 5 or 6, characterized in that at least one holding device (20) for mechanical support and stabilization of the partial coils (4, 4 ", 5, 5") of a coil assembly (13) is formed and that by the at least one holding device (20) is an electrical connection between the sub-coils (4, 4 ", 5, 5"), so that the common electrical phase connection (19) of the coil subassembly (13) is formed with the aid of the at least one holding device (20) is.
    [8]
    8. Device (1) according to claim 1 and 7, characterized in that the at least one holding device (20) between the first part coil (4, 4 ") and the second part coil (5, 5") of a coil assembly (13) is arranged and with an upper end face (23) of the first part coil (4, 4 ") and with a lower end side (24) of the second part coil (5, 5") is in direct electrical contact, so that the common electrical phase connection (19) of Coil assembly (13) is formed, and that preferably at least two further, electrically non-interconnected holding devices (21,22) on a lower end face (25) of the first part coil (4, 4 ") and an upper end face (26) of the second N2011 / 27300 -4- -4- • · • Φ ··· ··· Part coil (5, 5 ") are arranged so that in each case a second electrical connection (9, 9", 10, 10 ") for the connection with a Thyristoreinheit (6, 6 ") is formed.
    [9]
    9. Device (1) according to claim 2 and 7, characterized in that the at least one holding device (20) under the first part coil (4, 4 ") and the second part coil (5, 5") of a coil assembly (13) is arranged and with lower end faces (24, 25) of the two partial coils (4,4 ", 5, 5") is in direct electrical contact, so that the common electrical phase connection (19) of the coil assembly (13) is formed, and that preferably at least two further electrically non-connected holding devices (21, 22) are arranged on upper end faces (23, 26) of the two partial coils (4, 4 ", 5, 5"), so that in each case a second electrical connection (9, 9 ", 10.10 ") for connection to a thyristor unit (6, 6") is formed.
    [10]
    10. Device (1) according to claim 9, characterized in that the at least one holding device (20) which forms the common electrical phase connection (19) rests on a plurality of electrically insulating carrier elements (27), so that the coil assembly (13) relative to the the lower support level (16) is arranged spaced apart, and the electrically insulating support elements (27) along a first path vertically below the first part coil (4, 4 ") and along a second path vertically below the second part coil (5, 5"), in particular at regular intervals along the respective path, are arranged.
    [11]
    11. Device (1) according to claim 9 or 10, characterized in that the at least one holding device (20), which forms the common electrical phase connection (19), an outer portion (28) for holding the first part coil (4, 4 " ) and an inner portion (29) for supporting the second sub-coil (5, 5 ") of the coil assembly (13) and that the outer N2011 / 27300 -5- * * Μ ····· # ♦ section (28) and the inner portion (29) of the holding device (20) via one or more decoupling elements (30) are interconnected.
    [12]
    12. Device (1) according to one of the preceding claims, characterized in that the AC system comprises three phases (2, 2 ', 2 ") and the device (1) comprises three coil strands (3, 3', 3"), and that the first sub-coil (4) of the first coil strand (3) and the second sub-coil (5 ") of a third coil strand (3") are connected to the first phase (2) and form a first coil subassembly (13), and the first sub-coil ( 4 ') of a second coil strand (3') and the second sub-coil (5) of the first coil strand (3) are connected to the second phase (2 ') and form a second coil subassembly (13'), and the first sub-coil (4 " ) of the third coil strand (3 ") and the second partial coil (5 ') of the second coil strand (3r) are connected to a third phase (2") and form a third coil assembly (13 ").
    [13]
    13. Device (1) according to one of the preceding claims, characterized in that the first part coil (4, 4 ', 4 ") of a coil assembly (13, 13', 13") has a plurality of hollow cylindrical and with respect to the longitudinal central axis (15). the first partial coil (4, 4 ', 4 ") concentrically arranged winding layers (17), wherein the plurality of winding layers (17) are electrically connected in parallel and magnetically coupled, and that the second partial coil (5, 5', 5") of a Coil assembly (13, 13 ', 13 ") comprises a single hollow cylindrical winding layer (17), wherein the second sub-section (5, 5 5") also concentric to Längsmitteiachse (15) of the first sub-coil (4, 4', 4 ") is arranged.
    [14]
    14. Device (1) according to one of the preceding claims, characterized in that the inductance of the second partial coil (5, 5 ', 5 ") is 0.1% to 30%, in particular 0.3% to 20%, preferably 0, 5% to 10% of the total inductance of the second partial coil (5, 5 ', 5 ") and the corresponding first partial coil (4, 4', 4"). N2011 / 27300
    [15]
    15. Device (1) according to one of the preceding claims, characterized in that the inductance value of a second Teilspuie (5, 5 ', 5 ") is selected so high that in a short circuit case by a short-circuit current occurring via the second part coil (5 , 5 ', 5 ") and the thyristor unit (6, 6', 6") connected thereto, the maximum permissible current load value of this thyristor unit (6, 6 ', 6 ") is not exceeded, in particular the short-circuit current does not exceed a value of 25 kA , Coil Holding GmbH Hurrh

    Lawyers Burger & Partner Attorney at Law N2011 / 27300
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    公开号 | 公开日
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    CA2873810C|2021-04-06|
    EP2801140A2|2014-11-12|
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    US9590424B2|2017-03-07|
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    优先权:
    申请号 | 申请日 | 专利标题
    ATA9/2012A|AT512385B1|2012-01-04|2012-01-04|DEVICE FOR INFLUENCING BLIND POWER FLOWS|ATA9/2012A| AT512385B1|2012-01-04|2012-01-04|DEVICE FOR INFLUENCING BLIND POWER FLOWS|
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    CA2873810A| CA2873810C|2012-01-04|2013-01-04|Device for influencing reactive-power flows|
    EP13709292.0A| EP2801140B1|2012-01-04|2013-01-04|Device for influencing reactive-power flows|
    US14/370,560| US9590424B2|2012-01-04|2013-01-04|Device for influencing reactive-power flows|
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