Design of Self-diagnosis for Diversity Actuation System Based on FPGA in ACPR1000 Nuclear Power Plant

Self-diagnosis for diversity actuation systems (KDS) is essential for the safe operation of nuclear power plants (NPPs). With the development of FPGA technology, more and more KDS in NPPs are realized with FPGA technology. This paper provides a self-diagnosis solution for KDS based on FPGA, which includes fault detecting, fault handling, diagnosis information monitoring and alarm indication. After testing and verification in ACPR1000 NPPs, and this solution can effectively improve the maintainability of KDS, can be widely used in other type of NPPs, and has broad application prospects.