Beidou satellite time synchronization method and system for distributed resource network access

The invention belongs to the technical field of power system time synchronization, and discloses a Beidou satellite time synchronization method and system for distributed resource network access. The Beidou satellite time synchronization method comprises the following steps: acquiring a residual error after time synchronization of each aggregation control unit by adopting a Beidou satellite time synchronization system when a distributed resource accesses a network; on the basis of the residual error, the importance degree and the stability corresponding to the aggregation control unit, weighting performance evaluation is carried out on each aggregation control unit; obtaining a local clock signal of the aggregation control unit with the highest score based on the obtained score result of each aggregation control unit, and taking the local clock signal as a main clock; and performing clock synchronization on the other aggregation control units by using a rabbit time synchronization protocol. According to the t