基于FPGA技术的核安全级系统功能安全认证应用研究

Research on Application of Functional Safety Certification for Nuclear Safety-Class System Based on FPGA Technology

针对目前国内核电行业尚无一套完善的功能安全认证流程的现状,以基于现场可编程门阵列(FPGA)技术的核电厂安全级系统为对象,重点对功能安全认证流程及其应用过程所必需开展的工作内容进行研究分析。结合功能安全评估方法,提出了一种基于FPGA技术的核电厂安全级系统的安全生命周期模型,总结出一套适用于基于FPGA技术的硬件和软件功能安全认证的关键工作流程,并针对核电厂安全级系统功能安全认证过程中的关键工作提出改进建议。该研究成果为核电厂安全级系统的功能安全认证和安全完整性审核工作提供指导;同时,可有效确保经过功能安全认证的产品应用于安全级系统时的质量可靠性,为产品的其他认证提供有力佐证。

According to the current situation that there is no mutual functional safety certification process in the nuclear power industry,takes the safety-class system of nuclear power plant based on field programmable gale array(FPGA)technology as the object,focus on the functional safety certification process and its application process necessary to carry out research and analysis.Proposes a safety lifecycle model of safety-class system based on FPGA,summarizes a set of key work flow of functional safety certification for hardware and software based on FPGA technology combined with the functional safety assessment method.The improvement suggestions are put forward for the key work in the process of functional safety certification of the nuclear power plant.This research result can provides experience information and technical support for similar product functional safety certification and Safety integrity level.Meanwhile,the product quality can be assured using in safety-class system in nuclear power plant,and providing support for other product certifications.