Research and Application of Real-Time Close-loop Test Technology for Intelligent Substation

With the large-scale spread and application of intelligent substation,it has a higher demand on the dynamic performance testing of secondary system under various fault and abnormal situations. Based on real-time digital simulator( RTDS),the dynamic test method for the secondary system of intelligent substation was studied,and the test mode was proposed. Then,the close-loop test scheme w as designed for the secondary system of intelligent substation,w hich could be applied in protection performance test,secondary system special test and station overall test,etc. Finally,combined w ith the integration test of a 500 k V intelligent substation project,the digital dynamic test w as conducted for the secondary system to assess its performance. The results show that the test scheme is scientific and effective.