• 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:
    Intelligent power regulator system. The system operates by isolating the current wave and/or supply voltage of a three-phase network, which integrates for each of the phases: - a disconnecting element comprising at least one pair of power semiconductors where one is configured and arranged to operate in the positive part of the alternating signal and the other to do so in the negative part; y - an electronic power control unit (4) of said disconnecting element according to the current and voltage needs to be supplied to a load, The system also comprising: - current (4.1), voltage (4.2) and temperature (7.1) sensors arranged at different points in the system that provide input values to said electronic power control unit (4). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2582493A1
    申请号:ES201530305
    申请日:2015-03-10
    公开日:2016-09-13
    发明作者:José Julio BECERRIL
    申请人:Elecgy Solutions S L；Elecgy Solutions Sl；
    IPC主号:
    专利说明:

    INTELLIGENT POWER REGULATOR SYSTEM
    Technical field
    The present invention concerns an intelligent power regulator system, applied to
    5 provide automatic control of the active power of an electrical installation, managing the parameters of the network and obtaining an improvement of the operating conditions and a reduction of the active energy consumed depending on the characteristics of the consumption elements present in an installation given, at each moment, said intelligent system acting by sectioning the current and / or voltage wave of
    10 feeding a network, in particular, among others, a three-phase network.
    Background of the invention
    Document ES 2 454 919 A1 discloses an electronic power controller device aimed at optimizing energy expenditure or energy efficiency based on controlling the percentage of electrical energy applied to loads consisting of a
    15 fuse per phase that is derived from the network, each fuse being connected to a thyristor commanded by a microcontroller that executes a control algorithm from which all the intensity is derived to a phase shifting reactance connected to the output of the network.
    The present invention proposes a power regulator system that is an alternative to the aforementioned electronic controller device, with different components and configuration 20 that increase performance both in terms of control and safety (limiting, for example, possible input overcurrents and possible supply voltage variations) and / or operational reliability. Thus, instead of simply using a thyristor for sectioning, power semiconductors will be used that include at least one pair of power semiconductors per phase, independently controlled and
    25 from where all the current flows.
    Brief exposition of the invention
    The intelligent power regulator system that is proposed operates by sectioning the current wave and the voltage wave of a network, among others three-phase, and integrates in a preferred embodiment:


    - aintensity and / or voltage sectioning element comprising thelessa
    partner fromsemiconductorsfrompower,byphase,whereonefromsayings
    semiconductors is configured and arranged to operate in the positive part of the
    alternating signal and the other semiconductor to do it in the negative part;
    - aelectronic power control unit of said disconnecting element,in
    function of the current needs to be supplied to the loads; Y
    - a stabilizer / voltage regulator element comprising an autotransformer
    variable composed of several sockets in its secondary, whose switching
    is controlled byaelectronic switching comparator control unit
    between circuits without loss of change.
    Said pair of power semiconductors can be implemented in an exemplary embodiment by means of a pair of thyristors in antiparallel.
    It is also provided that, in said embodiment, each pair of thyristors has an associated Snubber network associated. Alternatively, for other embodiments, the mentioned power semiconductors are of another type, such as IGBTs, MOSFETs, etc.
    The electronic power control unit is responsible for directing the set of pairs of power semiconductors. This control is carried out by activating said pairs of semiconductors after locating the zero crossing of the intensity and / or voltage wave.
    Each of the phases has an ultra-fast opening fuse in series and before each disconnecting element.
    The regulatory system also integrates current, voltage and temperature sensors arranged at different points of the system that provide input values to said electronic control unit.
    The intelligent power regulator system also includes a three-phase regulating autotransformer with several intermediate sockets in the winding, connected in series with each pair of three-phase power semiconductors applied to keep the voltages stable, also limiting the possible variations of supply voltage to the load and limiting the possible power overcurrents. Preferably, said autotransformer is connected in a star, the common neutral point of the installation and its enclosure is grounded.


    The system, object of the invention, can be single-phase, two-phase, three-phase or multi-phase.
    The foregoing and other features of the invention will be better appreciated upon reading the following description of an exemplary embodiment illustrated in Fig. 1.
    Brief description of the drawings
    5 An exemplary embodiment of an intelligent regulator system is illustrated in Fig. 1power according to the aforementioned characteristics.
    Detailed description of an embodiment example
    The proposed intelligent power regulator system comprises at least
    following components:
    10 • network: online block of points at the top of the figure
    • ultra fast fuse 1,
    • pair of power semiconductors per phase 2,
    • Snubber 3 network,
    • electronic power control unit 4, 15 • current sensor 4.1,
    • voltage sensor 4.2,
    • 7.1 temperature sensor,
    • 3-phase regulator autotransformer 5,
    • electronic voltage control unit 6, 20 • global system control unit 7,
    • charging and / or receiving installation 8.
    The network will mean a three-phase low voltage electrical system that connects to the system or equipment described.
    "Installed load" means the total load corresponding to an installation
    25th electrical system. It is the sum of all the powers of the electrical equipment and appliances connected to the powered installation.
    Below is a brief explanation about the aforementioned components of the intelligent power regulator system, with reference to Fig. 1 of the aforementioned drawings.


    Said ultra fast fuse 1 (ultra fast fuse) or ultra fast opening fuse, is installed upstream of power semiconductors 2. Power semiconductors 2 need special fuses for their protection, which must have very fast cutting characteristics that prevent the destruction of the power semiconductors 2. The ultrafast fuses interrupt the overloads in times of operation very inferior to the normal fuses, by means of curves aM and gR.
    Connected to fuse 1, there are the pairs of power semiconductors 2, per phase, which in this example are implemented by a pair of thyristors in antiparallel, through which all the current that will feed the load 8 that is located will flow connected to the circuit Each power semiconductor 2 is controlled by an electronic power control unit 4.
    In parallel with the pairs of thyristors in antiparallel 2, in this exemplary embodiment, a Snubber network designed specifically for the type of power semiconductor used is connected and whose main objective is to protect the power semiconductor and assist in switching.
    The electronic power control unit 4, by means of pulses sent to each of the doors of the power semiconductors 2, is responsible for closing the circuit and allowing current to flow through the set of power semiconductors 2. This control is carried out by activating the power semiconductors 2 after locating the zero crossing of the intensity and / or voltage wave.
    The electronic power control unit 4 acts according to the parameters it receives from voltage and current sensors distributed throughout the circuit, (upstream and downstream of the semiconductor assembly 2, and adjusts to the consumption to obtain the greatest savings. By feedback to the system through the output signals, these control parameters are adjusted.
    The intelligent power regulator system integrates the following sensors:
    • Current sensors 4.1, from which the current is measured comprising current transformers, Hall effect sensors or Rogowsky coil. They are installed at the input and output of each power semiconductor 2 and at the output of autotransformer 5, feedback to the system.


    • Voltage sensors 4.2, from which the voltage values of the input and output of each power semiconductor 2 and the output of the autotransformer 5 are obtained.
    The intelligent power regulator system of the invention has other sensors,
    5 applied to the control of the phases of tension, imbalance of line voltages, temperature of the elements, etc. which will be explained later when describing the global control unit 7 of the system.
    The intelligent power regulator system also includes a three-phase regulator autotransformer 5, with several intermediate sockets in the winding, connected in series with
    10 each pair of power semiconductors 2 of the three phases, applied to keep the voltages stable, also limiting the possible variations of the supply voltage to the load and limiting the possible supercharges. Said autotransformer regulator 5 is connected in star to the common point to neutral and its envelope is connected to ground.
    15 The three-phase regulating autotransformer 5, is a transformer of special characteristics, which can be conceived as a transformer with a single winding with its two accessible terminals including several sockets in the secondary and with a third accessible terminal that connects to an intermediate socket of the winding and the fourth terminal common to one of the first two or, which would be equivalent, two windings connected of such
    20 so that two of its four accessible terminals connected in common are available.
    The main advantage of this type of transformer is that it is possible to reduce the size and the materials used with respect to a classic transformer for the same nominal power, implying a substantial decrease in circuit costs.
    In general, these types of transformers are used with low transformation ratios, 25 in general of the lower order of 3: 1 or as voltage regulators.
    Although this regulating autotransformer 5 does not offer galvanic isolation between the primary and secondary, since both windings are physically connected by the common winding, such an arrangement of the windings provides one of its main advantages, which is the fact that it can handle greater power than a
    30 transformer connected in conventional manner.


    The three-phase regulator autotransformer 5 is systematized by means of an electronic voltage control unit 6, which operates as a comparator unit for switching between circuits without loss of change. In this way, a constant voltage is maintained in the secondary winding of the autotransformer determined by said electronic voltage control unit 6 which is responsible for compensating the voltage rises and falls. If the voltage control electronics 6 detects a deviation greater than a preset voltage value, it sends an order to modify the tap in the secondary.
    As can be seen in Figure 1, the autotransformer has an associated set of switchable power lines that alternately connect different points of the secondary of the transformer to neutral. In the illustrated example, each of said switchable power lines is connected to a pair of power semiconductors implemented here by antiparallel thyristors, governed by the said electronic voltage control unit (6) that makes them commute according to the variations of voltage detected. For this purpose, said control unit has access to the said current and / or voltage sensors (4.1, 4.2), although said connection has not been shown in Figure 1.
    Instead of using pairs of thyristors in antiparallel alternatively, for other embodiments, the mentioned power semiconductors are of another type, such as IGBTs, MOSFETs, etc.
    The order made by the voltage control electronics 6 acts on thyristors, for example in W3C configuration that act by means of pulses sent to each of the doors of a group of thyristor pairs in antiparallel (as many groups as sockets exist in the autotransformer regulator), making the changes between groups in the zero crossing of the system voltages maintaining the constant output voltage within the marked parameters. By means of the technology of said electronic control unit it is achieved that the interchanges between circuits do not have latency or distortion in the waveform since the commutations are perfectly controlled.
    The system is equipped with a global control unit 7 that protects the system and the client installation by working as follows:
    - If the direction of rotation of the phases is reversed (sensor 4.2) for any reason it causes a disconnection of the installation. If the direction of rotation is changed to the correct direction, the device / system is automatically reset.


    - If an asymmetry (sensor 4.2) occurs in a percentage greater than the preset value of the phase voltages, it may well disconnect the installation from the network or issue an alarm. When the asymmetry parameters disappear, the alarm disappears and the equipment automatically resets.
    5 -It is also planned that when a high temperature occurs in the equipment, it is disconnected from the mains.
    7.1 temperature sensors are also provided, in which the temperature values at which the different elements of the autotransformer operate and which are connected to said global control unit 7 of the operation of the system are recorded.
    10 These sensors may be PT100, PT1000, and even bimetallic thermostats with sudden rupture or similar.
    At the output of the intelligent power regulator system, the connection to the load and / or the CGP of the receiving installation is established.

    权利要求:
    Claims (13)
    [1]
    1. Intelligent power regulator system, by sectioning the current wave and / or supply voltage of a three-phase network, which integrates for each of the phases:
    - a disconnecting element comprising a power semiconductor; and 5 - an electronic power control unit (4) of said disconnecting element depending on the needs of current and / or voltage to be supplied to a load,
    characterized in that said disconnecting element comprises at least one pair of power semiconductors (2), per phase where one of said semiconductors is configured and arranged to operate in the positive part of the alternating signal and the other
    10 semiconductor to do it on the negative side.
    [2]
    2. System according to claim 1, characterized in that it further comprises current sensors (4.1), voltage sensors (4.2) and temperature sensors (7.1) arranged at different points of the system that provide input values to said electronic unit power control (4).
    System according to claim 2, characterized in that it comprises a three-phase autotransformer (5) connected in series with the semiconductors (2) of the three phases applied to limit the possible input overcurrents and also limit possible variations of supply voltage to load.
    [4]
    4. System according to claim 3, characterized in that said autotransformer has
    20 associated means for compensating said variations of the supply voltage to the load that act by modifying the inductance of the secondary in each of the phases.
    [5]
    5. System according to claim 4 characterized in that said compensation means comprise a set of switchable power lines that alternatively connect different points of the secondary of the transformer to neutral.
    System according to claim 5, characterized in that each of said switchable power lines is connected to a pair of power semiconductors where one of said semiconductors is configured and arranged to operate in the positive part of the alternating signal and the other to do so on the negative side, each pair being governed by an electronic voltage control unit (6) that switches the
    30 semiconductors depending on the voltage variations detected, said unit having

    voltage control electronics (6) access to intensity and / or voltage sensors (4.1, 4.2).
    [7]
    7. System according to claim 2 characterized in that said current (4.1) and voltage (4.2) sensors are arranged at the input and output of each disconnecting element 5, and at the output of said three-phase autotransformer (5).
    [8]
    8. System according to claim 3, characterized in that said temperature sensors (7.1) are arranged at a point prior to the input of the disconnecting elements and the autotransformer (5).
    [9]
    9. System according to any of the preceding claims characterized in that said electronic power control unit (4) is analog or digital.
    [10]
    10. System according to claim 1 or 6, characterized in that said pair of power semiconductors (2) is a pair of thyristors (2) arranged in antiparallel.
    [10]
    10. System according to claim 10, characterized in that each thyristor of said pair of thyristors in antiparallel assembly (2) has an associated Snubber network (3).
    [11]
    11. System according to claim 1, characterized in that each of the phases has in series and prior to each disconnecting element an ultra-fast opening fuse (1).
    [12]
    12. System according to any one of claims 3 to 11 characterized by further integrating a global control unit (7) of the operation of the system.
    13. System according to claim 12, characterized in that said global control unit
    (7) is connected to said temperature sensors (7.1) associated with said three-phase autotransformer (5).
    [14]
    14. System according to claim 3, characterized in that said three-phase autotransformer (5) is connected in star, the common point to neutral and its envelope is connected to ground.
    [15]
    15. System according to claim 1, characterized in that the system can be single-phase, two-phase, three-phase or multi-phase.
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    同族专利:
    公开号 | 公开日
    ES2582493B1|2017-07-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1519655A|1976-06-04|1978-08-02|Proizv Tekh Predpr Proekt Nala|Operating electric gas burners|
    DE2715371A1|1977-04-06|1978-10-12|Hans O Habermann|Voltage regulator for AC load - uses thyristor control circuit with control pulse length dependent on voltage|
    JPH09247857A|1996-01-05|1997-09-19|Kawamura Electric Inc|Power saving device|
    ES2454919A1|2012-10-10|2014-04-11|Enrique ORTUÑO SÁEZ|Electronic power driver device |WO2019053302A1|2017-09-13|2019-03-21|Elecgy Solutions, S.L.|Smart power-regulating system|
    法律状态:
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