A New Generation Efficient Testing Method for Substation Protection Based on Cloud-based DDPG Optimization and Collaboration

Aiming at the new generation of substation, a protection efficiency testing method is proposed. Based on the new generation of substation system, the architecture of protection system based on cloud data optimization and coordination is designed, the self-adaptive test instrument is designed, and its information flow transmission relationship with cloud coordination is analyzed. Further the method of minimum unit decomposition based on sub-module test is proposed, the conversion time of switching process is analyzed, the sub-module test sequence optimization problem is characterized as a decision-making process, the mathematical model of protection test is established, and the optimal sub-module test sequence is solved based on deep deterministic policy gradient (DDPG) algorithm The proposed method helps to improve the intelligence level of relay protection test.