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SOLID-STATE CIRCUIT BREAKER AND BREAKING METHOD FOR SOLID-STATE CIRCUIT BREAKER
SOLID-STATE CIRCUIT BREAKER AND BREAKING METHOD FOR SOLID-STATE CIRCUIT BREAKER
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机译:固态断路器固态断路器断裂方法
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摘要
A solid-state circuit breaker and breaking method are disclosed. In an embodiment, the solid-state circuit breaker includes a semiconductor switch; a controller, connected to the semiconductor switch; and an energy absorber, connected in parallel with the semiconductor switch. The controller is configured to obtain an equivalent inductance of a circuit of the solid-state circuit breaker upon a fault occurring in a line. Further, upon the equivalent inductance being greater than an inductance estimated value, the controller is configured to set a second current fault threshold. Finally, upon a fault current of the line reaching the second current fault threshold, the semiconductor switch is controlled to execute a closing operation.
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