1.Research Center of Renewable Energy Power Generation and Grid Control Engineering, Ministry of Education, Xinjiang University, Urumqi 830047, China;2.Electric Power Research Institute of State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830011, China;3.NR Electric Co., Ltd., Nanjing 211102, China

At present, the security and stability control system of a regional power grid mainly depends on the static test before delivery or simulation test in real time digital simulation system. The on-site joint test and dynamic verification of the security and stability control strategy are not perfect enough, it is difficult to completely eliminate hidden risks that may exist in the processes of equipment installation, test and parameter setting. So, it is urgent to establish an effective on-site test method to ensure the reliability and efficiency of the security and stability control system. In this paper, a large-scale remote test system is proposed based on power dispatching data networks, power wireless virtual networks and the global positioning system. The simulation results of the commonly used simulation softwares of power dispatching department in China, such as BPA and PSASP, are used as the input signal sources, the test terminals of each station are connected by communication network to form a distributed remote test platform for dynamic system-level simulation test of security and stability control systems. Meanwhile, the details of the network structure, communication mode, control method and the design of test terminals for the test platform are presented, taking the security and stability control system in Hetian, Xinjiang, China as an example, the on-site application is carried out, and the reliability test of the large-scale security and stability control system is realized.