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公开(公告)号：US20230044189A1
公开(公告)日：2023-02-09
申请号：US17821811
申请日：2022-08-24
发明人： Weichen He , Jinfeng Gao , Zhimin Dan , Yizhen Hou
摘要： A control method and device of a voltage converter and a voltage control system are provided. In some embodiments, the control device includes a first control module configured to obtain a current reference value according to an output voltage of a voltage converter and a given voltage value; a current modulation module configured to reduce the current reference value when an output current of a voltage converter is greater than a first current threshold; and a second control module configured to control the output current of a voltage converter according to the reduced current reference value and an output current.
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公开(公告)号：US11962231B2
公开(公告)日：2024-04-16
申请号：US17821811
申请日：2022-08-24
发明人： Weichen He , Jinfeng Gao , Zhimin Dan , Yizhen Hou
CPC分类号： H02M1/0025 , H02M1/0006 , H02M1/0009 , H02M1/32 , H02M7/53803
摘要： A control method and device of a voltage converter and a voltage control system are provided. In some embodiments, the control device includes a first control module configured to obtain a current reference value according to an output voltage of a voltage converter and a given voltage value; a current modulation module configured to reduce the current reference value when an output current of a voltage converter is greater than a first current threshold; and a second control module configured to control the output current of a voltage converter according to the reduced current reference value and an output current.
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公开(公告)号：US11251720B1
公开(公告)日：2022-02-15
申请号：US17485554
申请日：2021-09-27
发明人： Weichen He , Zhimin Dan , Jinfeng Gao , Yizhen Hou
摘要： This application provides a method and an apparatus for controlling a grid-tie inverter. The method includes: acquiring an output voltage of the grid-tie inverter and an output current value of the grid-tie inverter at a current moment; calculating N output current values of the grid-tie inverter at a next moment that is in one-to-one correspondence to N switch states of the grid-tie inverter based on the output current value at the current moment, and N is a natural number greater than or equal to 2; acquiring a first reference current based on the output voltage; acquiring a second reference current based on the output current and the first reference current; determining a first switch state; and controlling the grid-tie inverter to perform power transmission in the first switch state at the next moment.
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