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公开(公告)号：US20150145252A1
公开(公告)日：2015-05-28
申请号：US14411801
申请日：2014-02-25
发明人： Weixing Lin , Jinyu Wen , Shaorong Wang , Shijie Cheng
CPC分类号： H02M7/145 , F03D9/257 , H02J3/36 , H02M7/19 , H02M7/21 , H02M7/25 , H02M7/487 , H02M2001/0077 , H02M2007/4835 , Y02E10/76 , Y02E60/60
摘要： The present invention discloses a hybrid converter and a wind power generating system, the hybrid converter comprising a voltage source converter, a line commutated converter and a line commutated converter, a positive DC terminal of the voltage source converter is connected to a negative DC terminal of the line commutated converter, a positive DC terminal of the line commutated converter is connected to a positive DC transmission line, a negative DC terminal of the voltage source converter is connected to a positive DC terminal of the line commutated converter, and a negative DC terminal of the line commutated converter is connected to a negative DC transmission line. The present invention features a self-commutating capability, can be directly connected to a wind farm to convert wind power to DC power, and is able to improve rated voltage and rated power of the hybrid converter, technology of each component thereof is mature, and system reliability thereof is high.
摘要翻译： 本发明公开了一种混合型转换器和风力发电系统，该混合式变换器包括电压源转换器，线路整流转换器和线路整流转换器，电压源转换器的正极端子连接到 线路整流转换器，线路整流转换器的正直流端子连接到正直流传输线，电压源转换器的负直流端子连接到线路整流转换器的正直流端子，负直流端子 线路换向转换器连接到负DC传输线。 本发明具有自换向功能，可以直接连接到风电场，将风力转换为直流电，并能提高混合变流器的额定电压和额定功率，其各部分技术成熟， 其系统可靠性高。
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2.发明授权STATCOM system for providing reactive and/or active power to a power network 有权STATCOM系统，用于向电力网络提供无功和/或有功功率公开(公告)号：US08154896B2
公开(公告)日：2012-04-10
申请号：US12722916
申请日：2010-03-12
申请人： Lennart Angquist
发明人： Lennart Angquist
IPC分类号： H02M7/145
CPC分类号： H02J3/1842 , Y02E40/16 , Y02E40/22 , Y10T307/685
摘要： A static compensator system for providing reactive and/or active power to a power network. The system includes a static compensator, which has a DC capacitor Ud and a voltage source converter. The static compensator is connected to an energy storage device. The system further includes a booster converter device connected in series with the energy storage device and in parallel with the DC capacitor Ud of the static compensator. The booster converter device and the energy storage device are further connected in parallel with the voltage source converter of the static compensator.
摘要翻译： 一种用于向电力网络提供无功和/或有功功率的静态补偿器系统。 该系统包括具有直流电容器Ud和电压源转换器的静态补偿器。 静态补偿器连接到能量存储装置。 该系统还包括与能量存储装置串联连接并与静态补偿器的直流电容器Ud并联连接的升压转换器装置。 升压转换器装置和能量存储装置进一步与静态补偿器的电压源转换器并联连接。
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公开(公告)号：US5267137A
公开(公告)日：1993-11-30
申请号：US042448
申请日：1993-04-02
申请人： Klaus Goebel
发明人： Klaus Goebel
摘要： The invention concerns a high power power supply with output power in excess of 5 kilowatts, by way of example, for the supply of electromagnets in the area of electromedicine and nuclear physics. In order to regulate the output current, power thyristors 28 are utilized within the two bridge rectifier circuits 2 and 3, operated with phase control regulation. In order to keep the output current constant, two transistor final control elements 10 and 11 regulated by a control-gain amplifier are used. Two charging capacitors 6 and 7 are provided for energy storage, the capacity of which is sufficiently large that the commutation of the power thyristors 28 transpires by means of self-extinguishing in a currentless state, whereby conducted as well as irradiated electrical interferences are eliminated.
摘要翻译： 本发明涉及一种输出功率超过5千瓦的大功率电源，例如用于在电子医学和核物理学领域提供电磁体。 为了调节输出电流，在两个桥式整流电路2和3中利用功率晶闸管28，其通过相位控制调节工作。 为了保持输出电流恒定，使用由控制增益放大器调节的两个晶体管最终控制元件10和11。 提供两个充电电容器6和7用于能量存储，其容量足够大，从而通过在无电流状态下自熄灭来发生功率晶闸管28的换向，从而消除了被辐射的电干扰。
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公开(公告)号：US10938295B2
公开(公告)日：2021-03-02
申请号：US16343978
申请日：2017-11-03
摘要： A multi-phase network power supply with compensation for harmonic oscillations relates to electrical engineering and is intended for supplying various electrical devices connected to a multi-phase alternating-current electrical network. The technical result of the claimed solution consists in lessening harmonic components, reducing pulsations in the voltage and current output by the power supply, and significantly reducing the required power. The multi-phase alternating-current network power supply with compensation for harmonic oscillations comprises a main multi-phase rectifier of the alternating-current network, an additional multi-phase rectifier, a controller and an additional voltage or current supply, wherein the positive terminal of the main multi-phase rectifier is capable of being connected to a load, and the negative terminal of the main multi-phase rectifier is connected to the positive terminal of the additional voltage or current supply, the negative terminal of which is capable of being connected to a load, the output terminals of the additional multi-phase rectifier are connected to the input terminals of the additional voltage or current supply, wherein the additional multi-phase rectifier is equipped with electronic switches, one in the circuit of each rectifying element, and each electronic switch is connected to the controller.
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公开(公告)号：US10263533B2
公开(公告)日：2019-04-16
申请号：US14828335
申请日：2015-08-17
申请人： David Schie
发明人： David Schie
IPC分类号： H02M7/155 , H02M7/145 , H01L29/745 , H02M1/42 , H01L29/10
摘要： An improved gated thyristor that utilizes less silicon area than IGBT, BIPOLARs or MOSFETs sized for the same application is provided. Embodiments of the inventive thyristor have a lower gate charge, and a lower forward drop for a given current density. Embodiments of the thyristor once triggered have a latch structure that does not have the same Cgd or Ceb capacitor that must be charged from the gate, and therefore the gated thyristor is cheaper to produce, and requires a smaller gate driver, and takes up less space than standard solutions. Embodiments of the inventive thyristor provide a faster turn off speed than the typical >600 ns using a modified MCT structure which results in the improved tail current turn off profile (
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公开(公告)号：US20180026434A1
公开(公告)日：2018-01-25
申请号：US15706941
申请日：2017-09-18
申请人： ABB Schweiz AG
发明人： Tobias Keller , Wolfgang Knapp
摘要： A excitation system and a generator arrangement with the excitation system is proposed. The excitation system comprises a converter adapted for converting an AC current to a DC current, a switching device for short circuiting an AC input of the converter, and an arc detection device for detecting an arc fault in the excitation system and for actuating the switching device upon detecting the arc fault. Therein, the switching device comprises an irreversible switch adapted for short circuiting the AC input such that the arc fault is quenched. This provide a comprehensive protection against arc faults.
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公开(公告)号：US3348121A
公开(公告)日：1967-10-17
申请号：US29430063
申请日：1963-07-11
发明人： MURTHY NANJUNDIAH N
IPC分类号： H02M7/145
CPC分类号： H02M7/145
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8.发明授权公开(公告)号：US11632059B1
公开(公告)日：2023-04-18
申请号：US17051441
申请日：2019-11-04
申请人： Yangzhou Power Supply Branch of State Grid Jiangsu Electric Power Co., Ltd. , SOUTHEAST UNIVERSITY , STATE GRID JIANGSU ELECTRIC POWER CO., LTD. , State Grid Corporation of China
IPC分类号： H02M7/145 , H02M7/483 , H02M1/32 , H02M7/5387
摘要： The present disclosure relates to a submodule topology circuit for a modular multilevel converter and a method for controlling same. The submodule topology comprises an inlet port and an outlet port, at least two half-bridge submodules, a plurality of first switching devices, a plurality of thyristors and a plurality of diodes, wherein the at least two half-bridges are connected in series and are provided between the inlet port and the outlet port, and each of the half-bridge submodules is provided with an input port, a first output port and a second output port.
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公开(公告)号：US11139749B2
公开(公告)日：2021-10-05
申请号：US16860775
申请日：2020-04-28
发明人： Toshihiro Miyazaki
摘要： A semiconductor device includes a rectifier circuit that rectifies an AC input voltage, a zero-cross detection circuit that detects a zero-cross of the AC input voltage, a control circuit that turns on the rectifier circuit at a timing determined by the zero-cross detected by the zero-cross detection circuit and a predetermined phase angle, and the phase angle is set so that an output voltage of the rectifier circuit is gradually increased.
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公开(公告)号：US10658829B2
公开(公告)日：2020-05-19
申请号：US15706941
申请日：2017-09-18
申请人： ABB Schweiz AG
发明人： Tobias Keller , Wolfgang Knapp
IPC分类号： H02H3/00 , H02H1/00 , H02M1/32 , H02P9/10 , H02M7/12 , H02M7/00 , H02M7/145 , H02H3/02 , H02H7/06
摘要： A excitation system and a generator arrangement with the excitation system is proposed. The excitation system comprises a converter adapted for converting an AC current to a DC current, a switching device for short circuiting an AC input of the converter, and an arc detection device for detecting an arc fault in the excitation system and for actuating the switching device upon detecting the arc fault. Therein, the switching device comprises an irreversible switch adapted for short circuiting the AC input such that the arc fault is quenched. This provide a comprehensive protection against arc faults.
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