Research and Application of FPGA V&V Technology in NPP Safety I&C System

As a diversified means of microprocessor technology, FPGA technology has been adopted in an I&C system important to safety independently developed by a Chinese nuclear power group due to its advantages of reducing the overall complexity of NPP I&C system and effectively solving the hidden dangers of DCS common cause failure. Internationally, FPGA V&V technology for NPP I&C system important to safety, is still under discussion and has not yet formed a consensus operating standard. However, the domestic FPGA regulations and standards in the field of nuclear power are not perfect, and the engineering practice experience is insufficient. All kinds of V&V technologies, methods and their engineering applications are being explored and improved. Therefore, it is urgent to solve the engineering application problem of FPGA V&V technology in digital systems that perform safety important functions in the field of nuclear power. Through the research on relevant regulations and standards of FPGA V&V for NPP I&C system important to safety, A FPGA V&V general technical scheme and method system suitable for NPP I&C system important to safety is established, and the application effects of the scheme and method is tested in project practice. Finally, the technical key points in the process of FPGA V&V for NPP I&C system important to safety are summarized.