A realization scheme of station area protection based on coordination method

摘要

The substation is an important part of the grid system, intelligent substation has covered a wide range of characteristics of intelligent generalization, automation system operation, information utilization is the trend in the development of substation, but the Smart Substation in nature did not change the fundamental principle of relay protection, so there is still protective equipment tuning difficulties, limited range and protecting refused to move and misoperation of protection. In order to solve the above problems, the article discusses the characteristics and functions of the protection domain station, and the idea of the protection domain, specific research analysis the station protection domain control system with multiple levels of protection coordination and application of the key problem, put forward the scheme to improve the performance of system protection in Substation. The application scheme of the proposed station domain protection will be used for reference for the next generation of Smart Substation in the future.