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2. 发明公开

EP4401255A1 SOLID-STATE CIRCUIT BREAKER AND CONTROL METHOD THEREFOR 审中-实审
公开(公告)号：EP4401255A1
公开(公告)日：2024-07-17
申请号：EP22877959.1
申请日：2022-10-08
申请人： SCHNEIDER ELECTRIC INDUSTRIES SAS
发明人： DONG, Jihua , CHEN, Jiangang , SHI, Ying
IPC分类号： H02H3/08
CPC分类号： H02H3/08 , H02H1/00 , H02H3/10 , H02H3/20
摘要： The present disclosure relates to a solid-state circuit breaker and a control method therefor. The solid-state circuit breaker comprises a solid-state switch, a first measurement unit, a second measurement unit, a control unit, and a driving unit. The first measurement unit is used to measure the current and/or voltage at a first terminal of the solid-state switch. The second measurement unit is used to measure the current and/or voltage at a second terminal of the solid-state switch. The control unit is used to: when the solid-state switch is turned off, determine, on the basis of the current and/or voltage at the first terminal, whether the first terminal is charged; in response to determining that the first terminal is not charged, determine, on the basis of the current and/or voltage at the second terminal, whether the second terminal is charged; in response to determining that the second terminal is charged, control the driving unit to input a pulse voltage to a control terminal of the solid-state switch, so that the solid-state switch is turned on corresponding to a pulse duration; and after the pulse duration has ended, determine the type of load connected to the first terminal of the solid-state switch on the basis of the change form of the current at the first terminal or the change form of the voltage at the first terminal.

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