介绍了一种基于现场可编程门阵列 (FieldProgrammableGateArray ,即FPGA)的新型反应堆保护系统的设计方案 ,辅以微处理器作为热备份的冗余 ,以实现设备的多样性。系统采用三取二的表决方式 ,FPGA部分执行主要的保护功能 ,并行数据处理和信号传输提高了系统的响应速度 ,避免了软件共模故障的发生。微控制器的使用增强了系统的通讯能力 ,优化了人机接口界面 ,并完成辅助的保护功能 A design scheme of a new reactor protection system based on Field Programmable Gate Array (FPGA) is introduced, which is complemented by the redundancy of the microprocessor as a hot backup to realize the diversity of the equipment. System uses three take two voting, FPGA part of the implementation of the main protection functions, parallel data processing and signal transmission to improve the system response speed, to avoid software common-mode failure. The use of microcontrollers enhances the system’s communication capabilities, optimizes the man-machine interface and complements the auxiliary protection functions