Research on the Design of Substation Operation System Based on Relay Protection Circuit
Aiming at the requirement of high speed and high reliability of relay protection in smart substation,a design scheme of substation operation system based on relay protection loop is proposed.The scheme makes full use of intelligent substation technologies such as digitalization and optical fiber communication to realize rapid fault diagnosis and isolation,and the protection action time is less than 20 ms,and all indicators are stable and reliable.The simulation results show that the proposed scheme is feasible and effective,which is of great value to guide the relay protection practice of smart substations.
intelligent substationrelay protectionfibre-optic communication
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