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公开(公告)号：US20220205424A1
公开(公告)日：2022-06-30
申请号：US17139329
申请日：2020-12-31
Applicant: General Electric Company
Inventor： Hanchao Liu , Maozhong Gong , Di Pan , Yichao Zhang
Abstract: A method for operating an asynchronous doubly-fed wind turbine generator connected to a power grid in a grid-forming mode to emulate a virtual synchronous machine. The doubly-fed wind turbine generator includes a line-side converter coupled to a rotor-side converter via a direct current (DC) link. The method includes receiving, via a controller, at least one reference command from an external controller. The method also includes controlling rotor flux of the doubly-fed wind turbine generator using the at least one reference command. Further, the method includes providing power droop control for the doubly-fed wind turbine generator through at least one of rotor-side reference frame rotation and d-axis flux control.
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公开(公告)号：US20230396147A1
公开(公告)日：2023-12-07
申请号：US18453629
申请日：2023-08-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Pan , Yichao Zhang , Yuntao Xu , Yukai Wang
IPC: H02M1/08 , H02M7/487 , H02M7/5395
CPC classification number: H02M1/08 , H02M7/487 , H02M7/5395
Abstract: A power converter apparatus comprises a set of switching elements communicatively coupled with a set of gate drive circuits. Each gate drive circuit is configured to provide a respective drive signal to a corresponding switching element, each switching element being switchably responsive to the respective drive signal. The apparatus includes a controller module configured to control an output state of the power converter, and selectively change one of a respective gate resistance and a respective gate current of a corresponding subset of the gate drive circuits based on the output state of the power converter.
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公开(公告)号：US20230058067A1
公开(公告)日：2023-02-23
申请号：US17401402
申请日：2021-08-13
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Pan , Yichao Zhang , Yuntao Xu , Yukai Wang
IPC: H02M1/08 , H02M7/5395 , H02M7/487
Abstract: A power converter apparatus comprises a set of switching elements communicatively coupled with a set of gate drive circuits. Each gate drive circuit is configured to provide a respective drive signal to a corresponding switching element, each switching element being switchably responsive to the respective drive signal. The apparatus includes a controller module configured to control an output state of the power converter, and selectively change one of a respective gate resistance and a respective gate current of a corresponding subset of the gate drive circuits based on the output state of the power converter.
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Patent Agency Ranking
4.发明授权公开(公告)号：US11305665B2
公开(公告)日：2022-04-19
申请号：US16291342
申请日：2019-03-04
Applicant: General Electric Company
Inventor： Hanchao Liu , Honggang Monten Wang , Philip Hart , Yichao Zhang
Abstract: Some embodiments provide a system to protect an electric vehicle charging infrastructure. An electric vehicle charging site may receive Alternating Current (“AC”) power from a power grid and provides Direct Current (“DC”) power to electric vehicles. A sensor spoof observer and controller may receive information from at least two AC current sensors, wherein the observer calculates a grid voltage disturbance using a structure based on an AC filter dynamic model. A system stability assurance platform may: (i) monitor current and voltage to detect resonance, (ii) identify impedance associated with a detected resonance, and (iii) apply a result of an analysis of the identified impedance to an adaptive damping control algorithm. A user interface platform may then provide information about a component of the charging infrastructure being cyber-attacked to a distribution system operator via a graphical user interface display.
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公开(公告)号：US20250055366A1
公开(公告)日：2025-02-13
申请号：US18927037
申请日：2024-10-25
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Pan , Yichao Zhang , Yuntao Xu , Yukai Wang
IPC: H02M1/08 , H02M7/487 , H02M7/5395
Abstract: A power converter apparatus comprises a set of switching elements communicatively coupled with a set of gate drive circuits. Each gate drive circuit is configured to provide a respective drive signal to a corresponding switching element, each switching element being switchably responsive to the respective drive signal. The apparatus includes a controller module configured to control an output state of the power converter, and selectively change one of a respective gate resistance and a respective gate current of a corresponding subset of the gate drive circuits based on the output state of the power converter.
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公开(公告)号：US12132391B2
公开(公告)日：2024-10-29
申请号：US18453629
申请日：2023-08-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Pan , Yichao Zhang , Yuntao Xu , Yukai Wang
IPC: H02M1/08 , H02M7/487 , H02M7/5395
CPC classification number: H02M1/08 , H02M7/487 , H02M7/5395
Abstract: A power converter apparatus comprises a set of switching elements communicatively coupled with a set of gate drive circuits. Each gate drive circuit is configured to provide a respective drive signal to a corresponding switching element, each switching element being switchably responsive to the respective drive signal. The apparatus includes a controller module configured to control an output state of the power converter, and selectively change one of a respective gate resistance and a respective gate current of a corresponding subset of the gate drive circuits based on the output state of the power converter.
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公开(公告)号：US11831232B2
公开(公告)日：2023-11-28
申请号：US17401402
申请日：2021-08-13
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Pan , Yichao Zhang , Yuntao Xu , Yukai Wang
IPC: H02M1/08 , H02M7/487 , H02M7/5395
CPC classification number: H02M1/08 , H02M7/487 , H02M7/5395
Abstract: A power converter apparatus comprises a set of switching elements communicatively coupled with a set of gate drive circuits. Each gate drive circuit is configured to provide a respective drive signal to a corresponding switching element, each switching element being switchably responsive to the respective drive signal. The apparatus includes a controller module configured to control an output state of the power converter, and selectively change one of a respective gate resistance and a respective gate current of a corresponding subset of the gate drive circuits based on the output state of the power converter.
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公开(公告)号：US11486355B2
公开(公告)日：2022-11-01
申请号：US17139329
申请日：2020-12-31
Applicant: General Electric Company
Inventor： Hanchao Liu , Maozhong Gong , Di Pan , Yichao Zhang
Abstract: A method for operating an asynchronous doubly-fed wind turbine generator connected to a power grid in a grid-forming mode to emulate a virtual synchronous machine. The doubly-fed wind turbine generator includes a line-side converter coupled to a rotor-side converter via a direct current (DC) link. The method includes receiving, via a controller, at least one reference command from an external controller. The method also includes controlling rotor flux of the doubly-fed wind turbine generator using the at least one reference command. Further, the method includes providing power droop control for the doubly-fed wind turbine generator through at least one of rotor-side reference frame rotation and d-axis flux control.
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