Network Topology Transformation Method Suitable for Complex Fault Simulation

In this paper, oriented to the fault types in the electromagnetic transient simulation of grid operation mode calculation, the program analysis method of the fault file that describes the fault is studied, and the data structure used to describe the electromagnetic transient fault in the program is designed. For complex faults that consider the randomness of the fault location of the fault element and the action of the circuit breaker, research the electromagnetic network topology transformation method covering chain operations such as node splitting, component splitting, switching action, and fault setting. Research and develop electromagnetic transient simulation fault handling programs that support faults of bus, line, transformer, and converter, etc. Finally the correctness of the program is verified.