公开(公告)号：US20230261561A1

公开(公告)日：2023-08-17

申请号：US17672432

申请日：2022-02-15

申请人： Eaton Intelligent Power Limited

发明人： Huaqiang Li

IPC分类号： H02M1/12 ,  H02M5/458 ,  H02M1/00 ,  H02J3/01

CPC分类号： H02M1/12 ,  H02M5/458 ,  H02M1/0009 ,  H02J3/01 ,  H02P27/08

摘要： A bi-directional power converter includes: a plurality of input nodes, each input node configured to electrically connect to one phase of a multi-phase AC electrical power distribution network; and an electrical network configured to convert alternating current (AC) to direct current (DC) and to convert DC current to AC current, the electrical network including a plurality of electronic switches. The bi-directional power converter also includes a control system configured to: estimate harmonic voltage content at three intermediate nodes in the bi-directional power converter based on a measured electrical quantity; and control the electronic switches to compensate for the estimated harmonic voltage content.

公开(公告)号：US20230187935A1

公开(公告)日：2023-06-15

申请号：US17548854

申请日：2021-12-13

申请人： General Electric Renovables Espana, S.L.

发明人： Kapil Jha ,  Arvind Kumar Tiwari

IPC分类号： H02J3/01 ,  H02K7/18 ,  H02P9/02 ,  H02J3/38

CPC分类号： H02J3/01 ,  H02K7/183 ,  H02P9/02 ,  H02J3/381 ,  H02J2300/24 ,  H02J2300/28

摘要： A method of mitigating high frequency harmonics in an output current of an electrical power system connected to a power grid includes providing an active harmonic filter in a stator power path connecting a stator of the generator to the power grid. Further, the method includes controlling, via a controller, the active harmonic filter to selectively extract a high frequency harmonic component from the output current. The method also includes determining, via the controller, whether the high frequency harmonic component is a positive sequence harmonic or a negative sequence harmonic. Moreover, the method includes compensating, via the controller, for the high frequency harmonic component based on whether the high frequency harmonic component is the positive sequence harmonic or the negative sequence harmonic to mitigate the high frequency harmonics in the output current.

公开(公告)号：US11677334B2

公开(公告)日：2023-06-13

申请号：US17630136

申请日：2021-01-12

申请人： SHANGHAI JIAO TONG UNIVERSITY

发明人： Xu Cai ,  Han Wang ,  Jianwen Zhang ,  Gang Shi ,  Jing Lv ,  Yunfeng Cao ,  Haoshu Shao ,  Yao Qin ,  Wei Lv

IPC分类号： H02M5/458 ,  H02M1/12 ,  H02J3/38 ,  H02J3/01 ,  H02J7/06 ,  H02M7/5387

CPC分类号： H02M7/53875 ,  H02J3/01 ,  H02J3/381 ,  H02J7/06 ,  H02M1/12 ,  H02M5/458 ,  H02J2300/28

摘要： The present invention discloses a modular intelligent combined wind power converter and a control method thereof. The modular intelligent combined wind power converter comprises separate bridge arm power units, wherein a plurality of the bridge arm power units are connected in parallel to form a high-capacity bridge arm power module, three bridge arm power modules form a three-phase full-controlled bridge power module, and the three-phase full-controlled bridge power module comprises an electric reactor, a capacitor, a fuse and a circuit breaker to form a basic converter module, and the basic converter module forms a high-capacity wind power converter through a modular intelligent combination method.

公开(公告)号：US11652365B2

公开(公告)日：2023-05-16

申请号：US17033016

申请日：2020-09-25

申请人： GRIDBRIDGE, INC.

发明人： Chad Eckhardt ,  Stephen Timothy Watts

IPC分类号： H02J13/00 ,  G06Q50/06 ,  H02J3/14 ,  H02J3/01 ,  G05B15/02 ,  H02J3/38 ,  H02J3/18 ,  H02M1/42 ,  H02J3/02 ,  H02J3/44 ,  H02J3/46

CPC分类号： H02J13/00017 ,  G05B15/02 ,  G06Q50/06 ,  H02J3/01 ,  H02J3/02 ,  H02J3/14 ,  H02J3/18 ,  H02J3/38 ,  H02J3/381 ,  H02J13/00004 ,  H02J13/00007 ,  H02J13/00028 ,  H02J13/00034 ,  H02M1/42 ,  H02J3/44 ,  H02J3/46 ,  H02J2300/20 ,  H02J2310/14 ,  H02J2310/64 ,  Y02B70/30 ,  Y02B70/3225 ,  Y02E40/70 ,  Y04S10/123 ,  Y04S20/221 ,  Y04S20/222 ,  Y04S20/242

摘要： An electrical distribution grid energy management and router device, or GER device, may be installed in a distribution grid, and route power from power supply to one or more power consumers. The GER devices described herein may provide platforms to add one or more features to a distribution transformer, provide additional features and benefits to both the utility company and end consumer, and may serve as a platform for providing other features, such as communications services, local and remote management, and intelligence to components of the distribution grid. A GER device may include sensors to measure electrical properties of incoming and outgoing power, and may include an electrical circuit layer having a central DC power stage. A GER device may also include a communications platform for one or more communication devices to communicate with a utility, power consumers, other electrical devices/parties, and/or other GER devices to form a micro-grid.

公开(公告)号：US20190229608A1

公开(公告)日：2019-07-25

申请号：US15875583

申请日：2018-01-19

申请人： Silicon Laboratories Inc.

发明人： Sriharsha Vasadi ,  Mustafa H. Koroglu ,  Sherry X. Wu

IPC分类号： H02M1/12 ,  H03F3/21 ,  H02J3/01

CPC分类号： H02M1/126 ,  H02J3/01 ,  H02M2001/0003 ,  H03F3/21

摘要： In one form, a power amplifier system includes first and second amplification path, and a combination element. The first amplification path has an input for receiving a drive signal, and an output. The second amplification path has an input coupled to the input of the first amplification path, and an output. The second amplification path has a delay element that inserts a signal path delay with respect to the first amplification path, wherein the delay element has a delay corresponding to a harmonic that is desired to be reduced. The combination element is coupled to the output of the first amplification path and an output of the second amplification path, and provides an output signal as a sum of outputs of the first amplification path and the second amplification path.

公开(公告)号：US20190115757A1

公开(公告)日：2019-04-18

申请号：US16214400

申请日：2018-12-10

申请人： Networked Power Inc.

发明人： Denis Kouroussis ,  Emre Kulali

IPC分类号： H02J3/18 ,  G05B15/02 ,  G05F1/66 ,  G05B13/02 ,  H02M1/42 ,  H02J3/01

CPC分类号： H02J3/18 ,  G05B13/021 ,  G05B15/02 ,  G05F1/66 ,  H02J3/01 ,  H02J3/1892 ,  H02J13/0006 ,  H02M1/4233 ,  H02M5/458 ,  Y02B70/126

摘要： A method and system of power factor optimization and total harmonic distortion are provided under the premise of efficient power management and distribution on an electrical grid. The method and system include a novel optimization technique based on a novel current profiling methodology enabling real-time power management with power factor correction as a function of the optimization. The optimization can be performed under dynamic current constraints. When deployed on an electrical grid, the method and system can provide a new technique for power management targeting an efficiency of the electrical grid. The method and system can thus provide for reduced costs of energy production and reduced carbon emissions into the atmosphere.

公开(公告)号：US20180301979A1

公开(公告)日：2018-10-18

申请号：US15766027

申请日：2015-12-28

申请人： Mitsubishi Electric Corporation

发明人： Kenji IWAZAKI ,  Yosuke SHINOMOTO ,  Kazunori HATAKEYAMA

IPC分类号： H02M1/12 ,  H02M5/458 ,  H02P27/08 ,  H02P29/50 ,  H05K1/18 ,  H05K1/11

CPC分类号： H02M1/12 ,  H02J3/01 ,  H02M5/458 ,  H02M7/003 ,  H02P27/085 ,  H02P29/50 ,  H05K1/0254 ,  H05K1/115 ,  H05K1/181 ,  H05K2201/09227 ,  H05K2201/1006 ,  H05K2201/10189

摘要： A circuit board accommodates a plurality of different source voltages. On the circuit board, a printed wire which constitutes a circuit is formed, a first circuit component used for a board which meets specifications for a first voltage or a second circuit component used for a board which meets specifications for a second voltage higher than the first voltage, is mounted, and spacing between adjacent printed wires is equal to or larger than a distance which secures an insulation distance when the second voltage is input.

公开(公告)号：US10063055B2

公开(公告)日：2018-08-28

申请号：US14791431

申请日：2015-07-04

申请人： XSLENT Energy Technologies, LLC

发明人： Stefan Matan ,  Fred C Horton ,  Frank P Marrone

IPC分类号： H02J3/28 ,  H02J3/38 ,  G06G7/635 ,  H02J3/18 ,  G01R11/54 ,  H02J3/06 ,  G05B15/02 ,  H02J3/00 ,  G05B13/02 ,  G05F1/66 ,  H02J3/01 ,  H02J13/00 ,  H02J3/12 ,  H02M1/42

CPC分类号： H02J3/28 ,  G01R11/54 ,  G05B13/026 ,  G05B15/02 ,  G05F1/66 ,  G06G7/635 ,  H02J3/00 ,  H02J3/01 ,  H02J3/06 ,  H02J3/12 ,  H02J3/18 ,  H02J3/382 ,  H02J3/383 ,  H02J13/0006 ,  H02M1/42 ,  Y02B70/3216 ,  Y02E40/40 ,  Y02E40/72 ,  Y04S10/123 ,  Y04S20/221 ,  Y04S20/224

摘要： A distributed control node enables local control of reactive power. A metering device of the control node measures energy delivered by a grid network at a point of common coupling (PCC) to which a load is coupled. The metering device determines that the load draws reactive power from the grid network. The control node draws real power from the grid and converts the real power from the grid into reactive power. The conversion of real to reactive power occurs on the consumer side of the PCC. The conversion of real to reactive power enables delivery of reactive power to a local load from real power drawn from the grid.

公开(公告)号：US20180183240A1

公开(公告)日：2018-06-28

申请号：US15577079

申请日：2016-05-26

申请人： KYOCERA Corporation

发明人： Hitoshi KUWAHARA ,  Masaya KOJIMA

IPC分类号： H02J3/38 ,  H02M7/44

CPC分类号： H02J3/383 ,  H02J3/01 ,  H02M1/15 ,  H02M7/44 ,  H02M2001/0048 ,  H02M2001/007 ,  Y02B70/1491

摘要： A power conversion apparatus, power conversion method, and a power conversion system can reduce the occurrence of unnecessary power loss. The power conversion apparatus converts direct current (DC) power supplied by a solar cell into alternating current (AC) power. The power conversion apparatus includes a DC filter unit, a memory, and a controller. The DC filter unit includes a noise filter that reduces noise in the DC power supplied by the solar cell and a switch that connects an input terminal and an output terminal of the noise filter. The controller controls the switch in accordance with output power of the DC filter unit.

公开(公告)号：US09979219B2

公开(公告)日：2018-05-22

申请号：US14648915

申请日：2013-11-27

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Michael Finkenzeller

IPC分类号： H02J7/00 ,  B60L1/00 ,  B60L11/18 ,  B60L15/00 ,  H02J3/01 ,  H02M1/12 ,  H02M1/42

CPC分类号： H02J7/007 ,  B60L1/00 ,  B60L11/1803 ,  B60L11/1812 ,  B60L11/1814 ,  B60L11/1816 ,  B60L11/1838 ,  B60L11/1844 ,  B60L15/007 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2270/147 ,  H02J3/01 ,  H02J7/0052 ,  H02M1/12 ,  H02M2001/4283 ,  Y02E40/40 ,  Y02E60/721 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y04S10/126

摘要： A battery with simultaneous active compensation of the interference signals occurring during the charging is provided. In order to charge the battery, at least two converters are used, which can control connected loads during the working operation. During the charging operation, one converter controls the charging process while the other converter performs an active compensation of the interference signals that occur.