Reliability Evaluation of Distribution Network Based on Situation Awareness

With the wide integration of distributed generation and the fast development of smart grid the state of distribution network changes frequently, it is necessary to detect the real-time operation of distribution network. In this paper, a distribution network operation reliability evaluation method based on situation awareness is proposed. Firstly, the technology framework of distribution network situation awareness is studied and determined, and the key technologies are integrated systematically. Then in combination with that characteristic of good real-time performance of the situation awareness, the evaluation index system of distribution network operation state is established considering risk and reliability of power supply. The current and future operation state of the system and the risks faced by the system after the fault are described from different perspectives. The method in this paper is verified based on the simulation study of the IEEE 33-bus distribution system. The results show that the method can provide a basis for the reliable operation of the distribution network, which can help operators to obtain the operation reliability of the distribution network and predict the future operation trend.