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公开(公告)号：US10447038B2
公开(公告)日：2019-10-15
申请号：US15809329
申请日：2017-11-10
发明人： Fei Wang , Xiaojie Shi , Leon M. Tolbert , Yiwei Ma , Yilu Liu , Lin Zhu
摘要： An energy system includes a microgrid including a network of at least one distributed energy resource and a plurality of loads, the at least one distributed energy resource being configured to supply power to the plurality of loads. The microgrid is configurable to connect to one of a plurality of feeder circuits of a main power grid at one of a plurality of coupling interface locations, respectively. The microgrid is also configurable to expand or shrink its power supply area according to the available power generation capabilities.
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公开(公告)号：US11515702B2
公开(公告)日：2022-11-29
申请号：US16775836
申请日：2020-01-29
发明人： Fei Wang , Dingrui Li , Yilu Liu , Yiwei Ma , Ishita Ray , Leon M. Tolbert , He Yin , Lin Zhu
摘要： Methods, systems, and computer readable mediums for protecting and controlling a microgrid with a dynamic boundary are disclosed. One method includes detecting a fault in a microgrid that includes a dynamic point-of-common-coupling (PCC), in response to determining that the microgrid is operating in a grid-connected mode, isolating the fault by tripping a microgrid side smart switch and a grid side smart switch that are located immediately adjacent to the fault, initiating the reclosing of the grid side smart switch, and initiating the reclosing for the microgrid side smart switch via resynchronization if the grid side smart switch is successfully reclosed, and in response to determining that the microgrid is operating in an islanded mode, isolating the fault by tripping a microgrid side smart switch that is located immediately adjacent to the fault, and initiating the reclosing of the microgrid side smart switch.
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公开(公告)号：US12073161B2
公开(公告)日：2024-08-27
申请号：US17234230
申请日：2021-04-19
发明人： Fei Wang , Leon M. Tolbert , Yiwei Ma , Kevin Louis Tomsovic , Kai Sun , Shuoting Zhang , Jingxin Wang , Bo Liu
CPC分类号： G06F30/367 , G05B13/041 , H02J3/00 , H02J3/36 , H02J3/38 , H02M7/537 , H02J2203/20
摘要： A system includes a controller that is configured to generate a node control signal and a plurality of switch control signals, a plurality of programmable emulators, each of the plurality of programmable emulators being configurable as one of a plurality of node types responsive to the node control signal, and a plurality of switches that are programmable to couple ones of the plurality of programmable emulators to each other responsive to the plurality of switch control signals.
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公开(公告)号：US20240170929A1
公开(公告)日：2024-05-23
申请号：US18424250
申请日：2024-01-26
发明人： Fei Wang , Jingxin Wang , Yiwei Ma
摘要： An electric power system emulator apparatus includes a plurality of nodes arrayed in first and second dimensions and a plurality of transmission path emulator circuits, respective ones of which are configured to be connected between adjacent ones of the nodes in the first and second dimensions. The apparatus further includes a control circuit configured to control the transmission path emulator circuits to emulate transmission paths of an electric power system. The control circuit may be configured to control the transmission path emulator circuits to emulate transmission lines and/or transformers. The transmission path emulator circuits may include respective power electronics converter circuits. The apparatus may further include source/load emulator circuits configured to be coupled to the nodes.
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公开(公告)号：US11923666B2
公开(公告)日：2024-03-05
申请号：US17150650
申请日：2021-01-15
发明人： Fei Wang , Jingxin Wang , Yiwei Ma
摘要： An electric power system emulator apparatus includes a plurality of nodes arrayed in first and second dimensions and a plurality of transmission path emulator circuits, respective ones of which are configured to be connected between adjacent ones of the nodes in the first and second dimensions. The apparatus further includes a control circuit configured to control the transmission path emulator circuits to emulate transmission paths of an electric power system. The control circuit may be configured to control the transmission path emulator circuits to emulate transmission lines and/or transformers. The transmission path emulator circuits may include respective power electronics converter circuits. The apparatus may further include source/load emulator circuits configured to be coupled to the nodes.
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公开(公告)号：US11467551B2
公开(公告)日：2022-10-11
申请号：US17150567
申请日：2021-01-15
发明人： Fei Wang , Jingxin Wang , Yiwei Ma
IPC分类号： G06G7/48 , G05B17/02 , G06F30/20 , G05B13/04 , G06F30/367
摘要： A transformer emulator includes a DC bus, a first power electronics converter circuit having a DC port coupled to the DC bus, a second power electronics converter circuit having a DC port coupled to the DC bus, and a third power electronics converter circuit having DC port coupled to the DC bus. The transformer emulator further includes a control circuit configured to control the first, second and third power electronics converter circuits to emulate a transformer having a first port corresponding to an AC port of the first power electronics converter circuit and a second port corresponding to an AC port of the second power electronics converter circuit. The control circuit is configured to control the first and second power electronics converter circuits to emulate a voltage transformation of the transformer and to control the third power electronics converter circuit to emulate a loss of the transformer.
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公开(公告)号：US20220231485A1
公开(公告)日：2022-07-21
申请号：US17150650
申请日：2021-01-15
发明人： Fei Wang , Jingxin Wang , Yiwei Ma
摘要： An electric power system emulator apparatus includes a plurality of nodes arrayed in first and second dimensions and a plurality of transmission path emulator circuits, respective ones of which are configured to be connected between adjacent ones of the nodes in the first and second dimensions. The apparatus further includes a control circuit configured to control the transmission path emulator circuits to emulate transmission paths of an electric power system. The control circuit may be configured to control the transmission path emulator circuits to emulate transmission lines and/or transformers. The transmission path emulator circuits may include respective power electronics converter circuits. The apparatus may further include source/load emulator circuits configured to be coupled to the nodes.
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公开(公告)号：US20220229406A1
公开(公告)日：2022-07-21
申请号：US17150567
申请日：2021-01-15
发明人： Fei Wang , Jingxin Wang , Yiwei Ma
IPC分类号： G05B17/02 , G06F30/20 , G06F30/367 , G05B13/04
摘要： A transformer emulator includes a DC bus, a first power electronics converter circuit having a DC port coupled to the DC bus, a second power electronics converter circuit having a DC port coupled to the DC bus, and a third power electronics converter circuit having DC port coupled to the DC bus. The transformer emulator further includes a control circuit configured to control the first, second and third power electronics converter circuits to emulate a transformer having a first port corresponding to an AC port of the first power electronics converter circuit and a second port corresponding to an AC port of the second power electronics converter circuit. The control circuit is configured to control the first and second power electronics converter circuits to emulate a voltage transformation of the transformer and to control the third power electronics converter circuit to emulate a loss of the transformer.
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公开(公告)号：US20190148941A1
公开(公告)日：2019-05-16
申请号：US15809329
申请日：2017-11-10
发明人： Fei Wang , Xiaojie Shi , Leon M. Tolbert , Yiwei Ma , Yilu Liu , Lin Zhu
CPC分类号： H02J3/14 , G05B15/02 , H02J3/04 , H02J3/38 , H02J3/381 , H02J13/0006 , H02J13/0017
摘要： An energy system includes a microgrid including a network of at least one distributed energy resource and a plurality of loads, the at least one distributed energy resource being configured to supply power to the plurality of loads. The microgrid is configurable to connect to one of a plurality of feeder circuits of a main power grid at one of a plurality of coupling interface locations, respectively. The microgrid is also configurable to expand or shrink its power supply area according to the available power generation capabilities.
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公开(公告)号：US11754637B2
公开(公告)日：2023-09-12
申请号：US17197147
申请日：2021-03-10
发明人： Fei Wang , Jingxin Wang , Yiwei Ma
CPC分类号： G01R31/42 , G01R31/3004 , G01R31/31721 , G01R31/40 , G01R31/343 , G01R31/52
摘要： An apparatus for testing components for use in a power system includes at least one power amplifier circuit configured to be coupled to the component and a control circuit configured to operate the power amplifier circuit responsive to at least one state of a component emulator for the component included in a system emulator for the power system. The component emulator may include at least one power electronics converter circuit and the control circuit may be configured to control at least one of a voltage and a current of the at least one power amplifier circuit responsive to at least one of a voltage and a current of the at least one power electronics converter circuit. The control circuit may be further configured to control the component emulator responsive to at least one state of the at least one power amplifier circuit.
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