Research on Automatic Test Technology for Field Operation and Maintenance of Intelligent Substation

In view of the shortage of on-site test time in technical renovation, expansion and equipment replacement of Intelligent Substation, this paper studies the automatic test technology for on-site operation and maintenance of intelligent substation based on MMS model, builds a substation secondary equipment automatic test platform, and establishes a typical test template library. The secondary equipment automatic test platform can automatically simulate input signal, verify output information and record test process based on test scheme, remotely read and write the control words and pressure plates of the tested IED through MMS messages, to realize the one-key automatic test of secondary equipment function The test results show that the platform can effectively reduce the interference of artificial factors, eliminate the randomness of testing and repeated tests, and improve the testing efficiency.