Practice of Risk-Informed Nuclear Safety Management in CGN

Abstract

The development experience of nuclear power industry shows that risk-guided nuclear safety management is an effective means to deal with multi-unit nuclear safety management and improve the flexible operation of nuclear power plants. In order to comprehensively and effectively manage the nuclear safety status of group plant units, based on advanced nuclear safety management methods, CGN has gradually established and improved an independent supervision system for nuclear safety since 2017. After several years of exploration, the evaluation of group plant performance indexes and the importance of abnormal events, the determination of the operation safety state supervision and management action matrix and the corresponding action requirements have been carried out gradually, so as to realize the closed-loop management of the operation state of units. This paper summarizes the implementation of advanced nuclear safety management methods at the group level and proposes the direction for further development.