Substation relay protection equipment parameter testing method and device based on digital twinning

The invention provides a transformer substation relay protection equipment parameter testing method and device based on digital twinning. The method comprises the following steps: acquiring to-be-tested parameters of the transformer substation relay protection equipment; acquiring a power grid operation condition; using the to-be-tested parameters to configure a digital twinborn model of the transformer substation relay protection equipment, and enabling the digital twinborn model configured with the to-be-tested parameters to operate under the power grid operation condition to obtain a simulation result of the to-be-tested parameters under the power grid operation condition; and comparing the simulation result with a preset result, and judging whether the to-be-tested parameter is normal based on the comparison result. According to the method, the digital twin model of the relay protection equipment is configured through the to-be-tested parameters for simulation, whether the to-be-tested parameters are norm