Research on real-time simulation and communication of regional power grid based on RTDS and DNP 3.0

This paper analyzes the necessity to carry out a large grid system closed-loop simulation test using real-time digital simulator (RTDS).Using RTDS with highly parallel computing power, scalability and high simulation precision, a closed-loop verification program of Wide Area Monitoring Analysis Protection-control system (referred to WARMAP system) based on RTDS and DNP protocol is put forwarded. The RTDS system and WARMAP system to achieve real-time data exchange between each system by adding information control station. The data communicate between systems follow DNP3.0 Protocol. This paper describes the program structure, the design of the hardware connections and experiment design method detailed. The test results show that the program can not only greatly increase the flexibility of the system on the basis of ensuring the data accurate, but also shorten the WARMAP system development cycle. The program has been implemented in the State Grid Electric Power Research Institute Power System security and stability analysis and Control Laboratory.