Substation Main Connection Reliability Evaluation Considering Multi-state Model and Switching Process

In the traditional substation reliability evaluation, the two-state reliability evaluation model is mainly used, and the switching state of the components is not considered. In view of the shortcomings of traditional methods, firstly, a multi-state model of the components in the substation is established and the failure time after component failure is corrected through the switching process, and an optimization model suitable for substation main connection reliability evaluation is proposed. The expected energy not supplied calculated by the method proposed in this paper is more optimistic than that of traditional method. This paper provides a new idea for substation main connection reliability evaluation.