Promotion, Application and System Construction of Reliability Evaluation for Distribution Network Facilities

The ultimate goal of conducting reliability evaluation of distribution network facilities is to seek the lowest life cycle cost without reducing the reliability of the facilities. At the end of 2022, the industry standard “Guidelines for Reliability Evaluation Indicators of Distribution Network Facilities” (draft for approval) was completed and awaiting approval, filling the domestic gap. Identifying the relationship between the cost and reliability indicators of each stage of the entire life cycle of the facility, and optimizing the cost of each stage reasonably based on this is not only the original intention of the industry standard preparation, but also the implementation path of its implementation. Therefore, this article studies the promotion and application of reliability evaluation for distribution network facilities. Firstly, the current status of reliability management for distribution network facilities is sorted out, and the costs at each stage of the life cycle are associated with the reliability evaluation indicators defined in the guidelines. Then, the functions and system construction plan of the facility reliability evaluation information system were provided, and the next steps and future trends were presented.