公开(公告)号：US09960599B1

公开(公告)日：2018-05-01

申请号：US15614672

申请日：2017-06-06

Applicant: University of Macau

Inventor： Lei Wang ,  Man-Chung Wong ,  Chi-Seng Lam

IPC: H02J3/18 ,  H02J3/01 ,  H02J3/36 ,  H02J3/26 ,  H02J3/00 ,  H02M1/12 ,  H02M5/44

CPC classification number: H02J3/26 ,  H02J3/1864 ,  H02J3/36 ,  H02J3/383 ,  H02M1/12 ,  H02M5/44

Abstract: A thyristor controlled LC (TCLC) compensator for compensating dynamic reactive power in a power grid system, with an advantage of mitigating harmonic current injection from solid-state switches during switching on or off is provided. Exemplarily, the TCLC compensator is shunt-connected to the three-phase power grid and comprises an electronic controller, a coupling inductor (Lc), a first branch of circuit with a parallel inductor (LPF) and a solid-state switch, and a second branch of circuit with a parallel capacitor (CPF), wherein the coupling inductor (Lc) is connected in series with a parallel combination of the first and second branch of circuit. The electronic controller for the TCLC compensator is configured in accordance to the generalized instantaneous reactive power theory for improving the response speed instead of using traditional average reactive power concept.

公开(公告)号：US20170346287A1

公开(公告)日：2017-11-30

申请号：US15600818

申请日：2017-05-22

Applicant: LSIS CO., LTD.

Inventor： Yong-Kil CHOI

IPC: H02J3/18 ,  H02J3/26 ,  H02J3/16 ,  H03K17/72 ,  H02J3/01

CPC classification number: H02J3/1821 ,  H02J3/01 ,  H02J3/16 ,  H02J3/1864 ,  H02J3/26 ,  H03K17/72 ,  Y02E40/12

Abstract: The present disclosure relates to a reactive power compensation system includes a first measurement unit, a second measurement unit, a reactive power compensation unit, and a controller. The first measurement unit measures impedance of each of at least one load. The second measurement unit measures a voltage and current provided to the at least one load. The reactive power compensation unit compensates the leading reactive power or the lagging reactive power. The controller monitors a change of the impedance in real time, checks a change of the voltage or current according to the change of the impedance, and controls the reactive power compensation unit according to a result of the check to compensate the leading reactive power or the lagging reactive power.if

公开(公告)号：US20170141571A1

公开(公告)日：2017-05-18

申请号：US15218070

申请日：2016-07-24

Applicant: University of Macau

Inventor： Man-Chung WONG ,  Chi-Seng LAM ,  Yan-Zheng YANG ,  Wai-Hei CHOI ,  Ning-Yi DAI ,  Yajie WU ,  Chi-Kong WONG ,  Sai-Weng SIN ,  U-Fat CHIO ,  Seng-Pan U ,  Rui Paulo da Silva MARTINS

IPC: H02J3/01 ,  H02J3/18

CPC classification number: H02J3/01 ,  G01R31/00 ,  H02J3/18 ,  H02J3/1842 ,  H02J3/1864 ,  Y02E40/12 ,  Y02E40/22

Abstract: A mixed signal controller for a power quality compensator includes an analog circuit, an analog-to-digital converter (ADC), and a digital circuit. The analog circuit amplifies an input signal from the power quality compensator by a gain factor and outputs an analog signal, which is converted to a digital signal by the ADC. The digital circuit receives the digital signal, calculates the reference compensating current of each phase and then generates a trigger signal via hysteresis PWM to the power quality compensator. The digital circuit includes an evaluation circuit that calculates a value of the system total harmonic distortion after the power quality compensator compensates power and adjusts the gain factor when the value of the system total harmonic distortion reaches a predetermined threshold.

公开(公告)号：US09472953B2

公开(公告)日：2016-10-18

申请号：US14589663

申请日：2015-01-05

Applicant: Hamid Pishdadian

Inventor： Hamid Pishdadian

IPC: G05F1/70 ,  H02J3/18 ,  H03K17/725 ,  H03K17/79

CPC classification number: H02J3/1821 ,  G05F1/70 ,  H02J3/1864 ,  H03K17/725 ,  H03K17/79 ,  Y02E40/12 ,  Y10T307/625

Abstract: A dynamic high-energy switch used for correcting load imbalance through connecting and disconnecting capacitance in a power feed circuit.

公开(公告)号：US09257844B2

公开(公告)日：2016-02-09

申请号：US13637094

申请日：2011-04-12

Applicant: Antero Kähkönen

Inventor： Antero Kähkönen

IPC: G05F1/70 ,  H02J3/18 ,  H02M7/00

CPC classification number: H02J3/1864 ,  G05F1/70 ,  H02M7/003 ,  Y02E40/12

Abstract: An arrangement and a method for reactive power compensation in connection with a power transmission line. The arrangement includes at least one transformer and at least one reactive power compensator connected to the low-voltage side of the transformer and at least one adapter reactor, the adapter reactor being connected in series with the transformer so that the reactive power compensator is connected to the power transmission line via the transformer and the adapter reactor.

Abstract translation: 一种与输电线相关的无功补偿装置和方法。 该装置包括至少一个变压器和连接到变压器的低压侧的至少一个无功功率补偿器和至少一个适配器电抗器，适配器电抗器与变压器串联连接，使得无功功率补偿器连接到 通过变压器和适配器反应器的输电线路。

公开(公告)号：US20140240006A1

公开(公告)日：2014-08-28

申请号：US13781685

申请日：2013-02-28

Applicant: ALSTOM TECHNOLOGY LTD

Inventor： Marek Furyk ,  Roman Raubo ,  John Schwartzenberg

IPC: H03K17/06

CPC classification number: H02M1/088 ,  H02J3/1864 ,  H03K17/125

Abstract: The invention concerns energy delivery system and method for a gate drive unit controlling a thyristor-based valve (19). The system comprises at least one current transformer (22) located in the main current path of the valve.

Abstract translation: 本发明涉及用于控制基于晶闸管的阀门（19）的栅极驱动单元的能量输送系统和方法。 该系统包括位于阀的主电流路径中的至少一个电流互感器（22）。

公开(公告)号：US20130265014A1

公开(公告)日：2013-10-10

申请号：US13907303

申请日：2013-05-31

Applicant: Bengt Franken

Inventor： Bengt Franken

IPC: G05F1/70

CPC classification number: G05F1/70 ,  H02J3/1821 ,  H02J3/1864 ,  H02J3/1878 ,  Y02E40/12 ,  Y02E40/30

Abstract: A reactive power compensator. The reactive power compensator includes a power transformer having an AC bus side and a compensator bus side, wherein the power transformer is connectable to an AC grid at the AC bus side. The reactive power compensator further includes a thyristor-switched capacitor and a thyristor-controlled reactor connected to the compensator bus side. The reactive power compensator includes a booster transformer connected in series with the power transformer and to the compensator bus side. The invention also relates to computer programs and computer program products.

Abstract translation: 无功补偿器。 无功补偿器包括具有AC总线侧和补偿器总线侧的电力变压器，其中电力变压器可连接到AC总线侧的AC电网。 无功功率补偿器还包括晶闸管开关电容器和连接到补偿器总线侧的可控硅控制电抗器。 无功补偿器包括与电力变压器和补偿器总线侧串联连接的升压变压器。 本发明还涉及计算机程序和计算机程序产品。

公开(公告)号：US08519679B2

公开(公告)日：2013-08-27

申请号：US13614707

申请日：2012-09-13

Applicant: Lennart Angquist ,  Lars Paulsson ,  Ake Petersson ,  Bjorn Thordvaldsson

Inventor： Lennart Angquist ,  Lars Paulsson ,  Ake Petersson ,  Bjorn Thordvaldsson

IPC: G05F3/00 ,  G05F1/70 ,  G05F5/00

CPC classification number: H02J3/1864 ,  Y02E40/12

Abstract: A one-phase static var compensator apparatus includes a compensator string consisting of a first static var compensator connected serially to a thyristor valve. The compensator string is arranged to be connected on its first end to one phase of a transmission grid of a rated voltage exceeding 69 kV. Moreover, the thyristor valve includes a plurality of thyristors connected serially and the compensator string is arranged to be directly connected to the transmission grid. A corresponding three phase apparatus is also presented.

Abstract translation: 单相静态无功补偿装置包括由串联连接到晶闸管阀的第一静态无功补偿器组成的补偿器串。 补偿器串被布置成在其第一端连接到额定电压超过69kV的输电网的一相。 此外，晶闸管阀包括串联连接的多个晶闸管，并且补偿器串被布置为直接连接到传输格栅。 还提出了相应的三相设备。

公开(公告)号：US20130009615A1

公开(公告)日：2013-01-10

申请号：US13637094

申请日：2011-04-12

Applicant: Antero Kähkönen

Inventor： Antero Kähkönen

IPC: H02J3/18

CPC classification number: H02J3/1864 ,  G05F1/70 ,  H02M7/003 ,  Y02E40/12

Abstract: An arrangement and a method for reactive power compensation in connection with a power transmission line. The arrangement includes at least one transformer and at least one reactive power compensator connected to the low-voltage side of the transformer and at least one adapter reactor, the adapter reactor being connected in series with the transformer so that the reactive power compensator is connected to the power transmission line via the transformer and the adapter reactor.

Abstract translation: 一种与输电线相关的无功补偿装置和方法。 该装置包括至少一个变压器和连接到变压器的低压侧的至少一个无功功率补偿器和至少一个适配器电抗器，适配器电抗器与变压器串联连接，使得无功功率补偿器连接到 通过变压器和适配器反应器的输电线路。

公开(公告)号：US20110205768A1

公开(公告)日：2011-08-25

申请号：US13102825

申请日：2011-05-06

Applicant: Jan R. Svensson

Inventor： Jan R. Svensson

IPC: H02M1/36 ,  G05F1/70

CPC classification number: H02J3/1857 ,  H02J3/1864 ,  H02M1/36 ,  H02M7/49 ,  H02M2007/4835 ,  Y02E40/12 ,  Y02E40/26

Abstract: A chain-link converter including one or more phases. The one or more phases each includes one or more series-connected converter cells. The chain-link converter includes a power source connected to a converter cell of one of the one or more phases. A cost-efficient start-up of the converter is provided. The invention also relates to a corresponding static compensator system and a method.

Abstract translation: 一种链式转换器，包括一个或多个相。 一个或多个相各自包括一个或多个串联连接的转换器单元。 链式转换器包括连接到一个或多个相中的一个的转换器单元的电源。 提供了一种经济高效的转换器启动。 本发明还涉及相应的静态补偿器系统和方法。