Research on Reliability Improvement of Primary Equipment in Substation

Abstract

Substation primary equipment is the material basis for power system to realize power transmission and conversion, and its reliability is directly related to the safe and stable operation of power grid and the quality of power supply. In this paper, the reliability improvement of primary equipment in substation is systematically studied. Firstly, the fault status of core equipment is analyzed, and the operation and maintenance dilemma of traditional maintenance mode and intelligent transformation, as well as the constraints of aging equipment, weak basic conditions and insufficient data support are sorted out. Secondly, the key technology system of reliability improvement is constructed from four dimensions: condition monitoring, fault diagnosis and prediction, design and manufacturing optimization and operation and maintenance strategy optimization, covering multi-parameter collaborative monitoring, intelligent fault diagnosis model, digital twin simulation and life cycle cost optimization. Finally, systematic reliability management strategy suggestions are put forward from three aspects: life cycle management, standardization and standardization construction, personnel training and technical exchange, and a closed-loop reliability guarantee mechanism covering the whole process of design, manufacturing, operation and maintenance and retirement is constructed.