Nuclear power plant emergency diesel generator condition monitoring and fault diagnosis system as a nuclear power plant emergency diesel generator reliability improvement optimal scheme,highly recognized by the nuclear power industry experts,but because of its system complexity,there is no mature product available.This paper focuses on the unique environmental and functional requirements of emergency diesel generators in nuclear power plants,this paper aims to solve the problem of high start-up success rate of diesel generator and effectively avoid catastrophic damage of major equipment,and outlines the development requirements of the emergency diesel generator condition monitoring and fault diagnosis system of nuclear power plant from three aspects:condition monitoring,fault diagnosis and health evaluation.Based on the establishment and verification of diesel generator simulation model,the key points of periodic test,start-stop module,unloader module,thermal parameter module,reciprocating motion module and vibration module in fault diagnosis are analyzed in the development of condition monitoring system.It is hoped that this paper will serve as a reference for the development of emergency diesel generator condition monitoring and fault diagnosis system for nuclear power plant.
Nuclear power plantEmergency diesel generatorCondition monitoringFault diagnosisHealth evaluationReliability