Research and Application Innovation of Digital Twin Technologies for Key Equipment of Nuclear Power Plants

Abstract

Nuclear power equipment is an important part of nuclear power plant. It has the characteristics of complex system structure, long manufacturing cycle, long-term operation under irradiation conditions and poor working environment. It has high requirements for product quality grade. High reliability nuclear power equipment is an important premise and guarantee for the smooth construction and safe operation of nuclear power plant. Through digital twin technology, optimizing the design, manufacturing, operation and maintenance process of nuclear power equipment and improving the operation and maintenance efficiency of systems and equipment will be an important direction for the digital transformation and intelligent upgrading of nuclear power plants. This paper studies the digital twin core technologies such as multi-scale modeling, multidisciplinary joint simulation, virtual reality presentation and data mining, draws lessons from the concept of data life cycle management, develops the digital design platform of nuclear power equipment, realizes the integration of three-dimensional design, analysis, verification and Simulation of nuclear power equipment, and integrates the key data and models of nuclear power equipment operation, Provide support for the monitoring and maintenance of in-service equipment, and promote the digital transformation and upgrading of R & D and operation of key equipment in nuclear power plants.