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1. 发明申请

US20160241154A1 POWER CONVERSION SYSTEM WITH RE-CONFIGURABLE POWER FLOW 有权
标题翻译：功率转换系统具有可重新配置的功率流量
公开(公告)号：US20160241154A1
公开(公告)日：2016-08-18
申请号：US15025053
申请日：2014-01-15
申请人： VESTAS WIND SYSTEMS A/S
发明人： Victor DONESCU , Peter MONGEAU
IPC分类号： H02M5/458 , H02J3/38
CPC分类号： H02M5/458 , H02J3/382 , H02J3/386 , H02M7/493 , H02M2001/0032 , H02M2001/007 , H02M2007/4822 , Y02B70/16
摘要： According to some aspects, a power conversion system for converting electrical power produced by a generator is provided. The power conversion system comprises at least one first power converter configured to convert alternating current from the generator to direct current, at least one second power converter configured to convert the direct current to alternating current, and least one controller configured to reconfigure the at least one first power converter to convert direct current to alternating current and/or to reconfigure the at least one second power converter to convert alternating current to direct current.
摘要翻译：根据一些方面，提供了用于转换由发电机产生的电力的电力转换系统。功率转换系统包括至少一个第一功率转换器，其被配置为将来自发电机的交流电转换为直流电，配置成将直流电转换为交流电的至少一个第二功率转换器以及被配置为重新配置至少一个第一功率转换器，用于将直流电转换成交流电流和/或重新配置至少一个第二功率转换器以将交流电转换为直流电。

2. 发明授权

US09281761B2 Control scheme for current balancing between parallel bridge circuits 有权
标题翻译：并联电路之间电流平衡的控制方案
公开(公告)号：US09281761B2
公开(公告)日：2016-03-08
申请号：US13744948
申请日：2013-01-18
申请人： General Electric Company
发明人： Robert Gregory Wagoner , David Smith
IPC分类号： H02M3/158 , H02M7/493 , H02M7/5387 , H02M7/48
CPC分类号： H02M7/5387 , H02M3/1584 , H02M7/493 , H02M2003/1586 , H02M2007/4822
摘要： A control scheme for reducing current imbalance between parallel bridge circuits in a power converter system is provided. The power converter can include a plurality of bridge circuits coupled in parallel to increase the output power capability of the power system. The parallel bridge circuits can be controlled pursuant to a control scheme for reducing current imbalance between the parallel bridge circuits. In particular, a pulse test can be performed in which a pulse is applied to each of the plurality of bridge circuits. The switch timing of the switching elements responsive to the pulse can be measured and analyzed to determine a timing difference adjustment for one or more of the switching elements of the plurality of bridge circuits. The timing difference adjustment can be stored and used to adjust all subsequent switching events in the parallel bridge circuits.
摘要翻译：提供了一种用于减小功率转换器系统中的并联桥接电路之间的电流不平衡的控制方案。功率转换器可以包括并联耦合的多个桥式电路，以增加电力系统的输出功率能力。可以根据用于减小并联桥电路之间的电流不平衡的控制方案来控制并联桥电路。特别地，可以执行脉冲测试，其中脉冲被施加到多个桥接电路中的每一个。可以测量和分析响应于脉冲的开关元件的开关定时，以确定多个桥式电路中的一个或多个开关元件的定时差调整。可以存储和使用定时差调整来调整并联桥电路中的所有后续切换事件。

3. 发明申请

US20150349649A1 ZERO VOLTAGE SWITCHING OPERATION OF A MINIMUM CURRENT TRAJECTORY FOR A DC-TO-DC CONVERTER 有权
标题翻译：用于DC-DC转换器的最小电流轨迹的零电压开关操作
公开(公告)号：US20150349649A1
公开(公告)日：2015-12-03
申请号：US14728890
申请日：2015-06-02
申请人： Utah State University
发明人： Regan A. Zane , Daniel Seltzer , Dragan Maksimovic , Boris Jacobson , Donald Desrosiers
IPC分类号： H02M3/335 , H02M1/42
CPC分类号： H02M3/33507 , H02M1/4241 , H02M3/1584 , H02M3/285 , H02M3/33569 , H02M3/33584 , H02M3/33592 , H02M7/5387 , H02M2001/0003 , H02M2007/4811 , H02M2007/4815 , H02M2007/4822 , Y02B70/1433
摘要： An apparatus for zero voltage switching is disclosed. A system and method also perform the functions of the apparatus. The apparatus includes an MCT region module that defines a minimum current trajectory (“MCT”) for operation between a maximum positive power output to a maximum negative power output of a bidirectional DC-to-DC converter. The converter includes a dual active bridge series resonant converter. The MCT defines a boundary between a zero voltage switching (“ZVS”) region and a hard switching region. The apparatus includes an offset module that defines an offset to the MCT, the offset in the ZVS region, and an MCT control module that adjust switching of switches of the converter to maintain operation of the converter in the ZVS region between the maximum positive power output to a maximum negative power output along a trajectory defined by the MCT and the offset.
摘要翻译：公开了一种用于零电压开关的装置。系统和方法还执行该装置的功能。该装置包括MCT区域模块，其限定用于在双向DC-DC转换器的最大正功率输出与最大负功率输出之间操作的最小电流轨迹（“MCT”）。该转换器包括双主动桥式串联谐振变换器。 MCT定义零电压开关（“ZVS”）区域和硬开关区域之间的边界。该装置包括限定到MCT的偏移量，ZVS区域中的偏移量的偏移模块和调节转换器开关的开关的MCT控制模块，以保持ZVS区域中的转换器在最大正功率输出到由MCT和偏移量定义的轨迹的最大负功率输出。

4. 发明授权

US09190934B2 Multilevel hybrid inverter and operating method 有权
标题翻译：多级混合变频器及其运行方式
公开(公告)号：US09190934B2
公开(公告)日：2015-11-17
申请号：US14199749
申请日：2014-03-06
申请人： FutureWei Technologies, Inc.
发明人： Dianbo Fu
IPC分类号： H02M7/537 , H02M7/48 , H02M7/483
CPC分类号： H02M7/537 , H02J3/383 , H02M3/158 , H02M7/483 , H02M7/487 , H02M2001/007 , H02M2007/4822 , Y02E10/563
摘要： An inverter comprises a first boost apparatus, a second boost apparatus, a first half-cycle switching network coupled to the first boost apparatus, wherein the first half-cycle switching network is configured such that a first three-level conductive path is formed when a voltage at a dc source is greater than an instantaneous value of a voltage at an output of the inverter and a first five-level conductive path is formed when the instantaneous value of the voltage at the output of inverter is greater than the voltage at the dc source.
摘要翻译：逆变器包括第一升压装置，第二升压装置，耦合到第一升压装置的第一半周期开关网络，其中第一半周期开关网络被配置为使得当第一升压装置在直流电源处的电压大于逆变器输出端的电压的瞬时值，并且当逆变器输出端的电压的瞬时值大于直流电压时形成第一五电平导通通路资源。

5. 发明授权

US08964432B2 Apparatus and method for controlling circulating current in an inverter system 有权
标题翻译：控制逆变系统循环电流的装置及方法
公开(公告)号：US08964432B2
公开(公告)日：2015-02-24
申请号：US13752813
申请日：2013-01-29
申请人： The Boeing Company
发明人： Qingquan Tang , Dazhong Gu , Dariusz Czarkowski , Francisco de Leon , Kamiar Karimi , Shengyi Liu
IPC分类号： H02M7/493 , H02M1/12 , H02M7/48 , H02M7/5387
CPC分类号： H02M1/12 , H02M7/48 , H02M7/493 , H02M2001/0009 , H02M2007/4822
摘要： A power conversion system is disclosed that provides multiphase power, including phase voltages for each phase of the multiphase power. The system comprises a plurality of inverters that generate PWM output voltages based on PWM control signals. A plurality of inductive components is configured to receive the PWM output voltages to generate the phase voltages. The PWM output voltages cause circulating current flows through the inductive components. A voltage controller is employed that is responsive to the phase voltages to generate voltage modulation signals corresponding to the phase voltages. A plurality of current sharing channels are respectively associated with each of the plurality of inductive components and are configured generate current sharing modulation signals in response to the circulating current flows. The PWM control signals are generated based on modulation signals obtained by combining the current sharing modulation signals and voltage modulation signals.
摘要翻译：公开了一种功率转换系统，其提供多相功率，包括多相功率的每相的相电压。该系统包括基于PWM控制信号产生PWM输出电压的多个反相器。多个电感元件配置成接收PWM输出电压以产生相电压。 PWM输出电压使得循环电流流过电感元件。采用电压控制器，其响应于相电压以产生对应于相电压的电压调制信号。多个电流共享通道分别与多个感应组件中的每一个相关联，并且被配置为响应于循环电流流动而产生电流共享调制信号。 PWM控制信号基于通过组合电流共享调制信号和电压调制信号而获得的调制信号而产生。

6. 发明申请

US20140204643A1 CONTROL SCHEME FOR CURRENT BALANCING BETWEEN PARALLEL BRIDGE CIRCUITS 有权
标题翻译：并联电路之间的电流平衡控制方案
公开(公告)号：US20140204643A1
公开(公告)日：2014-07-24
申请号：US13744948
申请日：2013-01-18
申请人： GENERAL ELECTRIC COMPANY
发明人： Robert Gregory Wagoner , David Smith
IPC分类号： H02M7/5387
CPC分类号： H02M7/5387 , H02M3/1584 , H02M7/493 , H02M2003/1586 , H02M2007/4822
摘要： A control scheme for reducing current imbalance between parallel bridge circuits in a power converter system is provided. The power converter can include a plurality of bridge circuits coupled in parallel to increase the output power capability of the power system. The parallel bridge circuits can be controlled pursuant to a control scheme for reducing current imbalance between the parallel bridge circuits. In particular, a pulse test can be performed in which a pulse is applied to each of the plurality of bridge circuits. The switch timing of the switching elements responsive to the pulse can be measured and analyzed to determine a timing difference adjustment for one or more of the switching elements of the plurality of bridge circuits. The timing difference adjustment can be stored and used to adjust all subsequent switching events in the parallel bridge circuits.
摘要翻译：提供了一种用于减小功率转换器系统中的并联桥接电路之间的电流不平衡的控制方案。功率转换器可以包括并联耦合的多个桥式电路，以增加电力系统的输出功率能力。可以根据用于减小并联桥电路之间的电流不平衡的控制方案来控制并联桥电路。特别地，可以执行脉冲测试，其中脉冲被施加到多个桥接电路中的每一个。可以测量和分析响应于脉冲的开关元件的开关定时，以确定多个桥式电路中的一个或多个开关元件的定时差调整。可以存储和使用定时差调整来调整并联桥电路中的所有后续切换事件。

7. 发明授权

US07638899B2 Nested redundant uninterruptible power supply apparatus and methods 有权
标题翻译：嵌套冗余不间断电源设备及方法
公开(公告)号：US07638899B2
公开(公告)日：2009-12-29
申请号：US11561663
申请日：2006-11-20
申请人： John G. Tracy , Frederick Tassitino, Jr.
发明人： John G. Tracy , Frederick Tassitino, Jr.
IPC分类号： H02J9/00
CPC分类号： H02J9/06 , H02J3/38 , H02J9/062 , H02M7/493 , H02M2007/4822 , Y10T307/615 , Y10T307/62 , Y10T307/625 , Y10T307/696
摘要： An uninterruptible power supply (UPS) system includes at least three UPSs configured to be connected in parallel to a common load. The system further includes control circuitry configured to support at least two redundant groups among the UPSs and to support at least two redundant subgroups among at least one of the redundant groups of UPSs. In this manner, a nested redundancy may be provided.
摘要翻译：不间断电源（UPS）系统包括至少三个UPS，其被配置为并联连接到公共负载。该系统还包括控制电路，其被配置为在UPS之间支持至少两个冗余组，并且在至少一个UPS冗余组中支持至少两个冗余子组。以这种方式，可以提供嵌套冗余。

8. 发明申请

US20080106100A1 Method and arrangement in wind power plant 有权
标题翻译：风力发电厂的方法和安排
公开(公告)号：US20080106100A1
公开(公告)日：2008-05-08
申请号：US11980537
申请日：2007-10-31
申请人： Veikko Hyvarinen
发明人： Veikko Hyvarinen
IPC分类号： F03D9/00 , H02P9/04
CPC分类号： H02P9/42 , F03D7/0272 , F05B2270/1041 , F05B2270/504 , H02J3/386 , H02M7/493 , H02M2007/4822 , H02P2101/15 , Y02E10/723 , Y02E10/763
摘要： A method and an arrangement in connection with a wind power plant, an electric drive of the wind power plant comprising two or more partial converters in parallel, which constitute a frequency converter of the electric drive, and each partial converter comprising a mains converter part, of which the nominal power of at least one differs from the nominal power of other mains converter parts, and in the method there is selected for use the smallest possible, individual mains converter part required by an operating point of the wind power plant, or a combination of mains converter parts.
摘要翻译：一种与风力发电厂相关的方法和装置，包括构成电驱动器的变频器的并联的两个或更多个部分转换器的风力发电厂的电力驱动器，并且每个部分转换器包括电力转换器部分，其中至少一个的额定功率与其他电力转换器部件的额定功率不同，并且在该方法中，选择使用风力发电厂的工作点所需的尽可能小的单个电力转换器部件，或电源转换器部件组合。

9. 发明申请

US20190067988A1 INVERTER PARALLELING CONTROL SYSTEM AND METHOD 审中-公开
公开(公告)号：US20190067988A1
公开(公告)日：2019-02-28
申请号：US15684450
申请日：2017-08-23
申请人： SCHNEIDER ELECTRIC IT CORPORATION
发明人： Rajesh Ghosh , Mudiyula Srikanth , Damir Klikic , Mahendrakumar H. Lipare , Nikhill Onthath
IPC分类号： H02J9/06 , H02M1/12 , H02M1/14
CPC分类号： H02J9/062 , H02J3/34 , H02M1/12 , H02M1/14 , H02M2007/4822
摘要： According to one aspect, embodiments of the invention provide a UPS system comprising an input, an output, a converter, an inverter configured to convert DC power into output AC power, and a controller configured to operate the inverter to introduce a voltage droop to the output AC power, wherein the controller includes an active power droop controller including a first moving average filter configured to sample instantaneous active power of the inverter to obtain instantaneous active power samples and calculate a first DC component of the instantaneous active power samples, and a first Min-Max filter configured to receive the first DC component of the instantaneous active power samples and output a second DC component of the instantaneous active power samples having a convergence time less than the first DC component, wherein the active power droop controller is configured to calculate the voltage droop based on the second DC component.

10. 发明申请

US20180175741A1 A GALVANICALLY ISOLATED RESONANT POWER CONVERTER ASSEMBLY 审中-公开
公开(公告)号：US20180175741A1
公开(公告)日：2018-06-21
申请号：US15736737
申请日：2016-06-16
申请人： NPC Tech ApS
发明人： Thomas Andersen , Jakob Døllner Mønster
IPC分类号： H02M7/493 , H02M3/335 , H02M7/537
CPC分类号： H02M7/493 , H02M1/083 , H02M3/155 , H02M3/1584 , H02M3/33569 , H02M3/338 , H02M7/537 , H02M7/5383 , H02M2001/0058 , H02M2001/0074 , H02M2001/0077 , H02M2003/1557 , H02M2007/4815 , H02M2007/4822 , Y02B70/1425 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491
摘要： The present invention relates in a first aspect to a galvanically isolated power converter assembly comprising a first set of electrically interconnected resonant power inverters configured for generating respective output voltages and output currents. The galvanically isolated power converter assembly further a first positive summing node and a first negative summing node configured to combining the output voltages and output currents of the first set of resonant power inverters and a first common load circuit comprising a positive load input and a negative load input. A galvanic isolation barrier comprises first and second common isolation capacitors electrically insulating the common load circuit. Each of the first and second common isolation capacitors possesses an official safety rating.

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