New method for complicated automation systems simulation test

This paper describes a new method for complicated automation systems testing, particularly, power systems protective relays hardware and real-time software. Test platform is based on Monte-Carlo method utilization. A simulator produces voltage and current samples and protection device settings. A control program performs test case generation, waveform production, event identification, and result comparison. This paper will discuss the advantages of stochastic approach and determination of test case number necessary to achieve the desirable level of confidence.