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

Claim 0:
1. A method for controlling a solid state circuit breaker, comprising:
detecting 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) power grid;
obtaining a breaking current value of the solid state circuit breaker according to the detected direction of the current;
obtaining 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;
obtaining a predicted current value within a next sampling period of a present sampling period of the solid state circuit breaker;
comparing the predicted current value with the breaking current value; and
upon the predicted current value being greater than the breaking current value, delaying solid state circuit breaker, and upon the predicted current value being greater than the maximum threshold current value, controlling the solid state circuit breaker to disconnect a circuit in which the solid state circuit breaker resides.