Patent ID: 11923674
Assignee: SIEMENS AKTIENGESELLSCHAFT
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus for controlling a solid state circuit breaker, comprising:
a current direction detection unit configured to detect a direction of a current flowing through the solid state circuit breaker, wherein the solid state circuit breaker is at a power supply end of a power grid bus in a direct current (DC) grid;
a breaking current value obtaining unit, configured to obtain a breaking current value of the solid state circuit breaker according to the detected direction of the current;
a maximum threshold obtaining unit, configured to obtain a value of a maximum threshold current to flow through the solid state circuit breaker, wherein the breaking current value is less than the maximum threshold current value;
a predicted current value obtaining unit configured to obtain a predicted current value a next sampling period of a present sampling period of the solid state circuit breaker;
a comparison unit configured to compare the predicted current value with the breaking current value; and
a breaking unit configured to delay the solid state circuit breaker upon the predicted current value being greater than the breaking current value, and the solid state circuit breaker to disconnect the a circuit in which the solid state circuit breaker resides when the predicted current value is greater than the maximum threshold current value, make.