基于FPGA技术的核电站模拟量输入模块设计

Analog Input Module for NPPs Based on FPGA Technology

模拟量输入模块是核电保护系统的重要组成部分,是实现模拟信号的采集、转换及处理功能的关键环节,为核电站保护系统提供可靠的采样信号,确保核电站运行安全。核电站模拟量输入模块一般采用CPU技术或者模拟技术实现,本文考虑模拟量输入模块安全性和可靠性需求,通过分析其技术指标,应用FPGA技术进行硬件电路及内部处理设计。通过对模拟量输入模块进行功能验证,调试结果证明了FPGA用于核电站模拟量输入模块设计的可行性。

Analog Input Module is an important part of Nuclear Power Plants （ NPPs ） protection system to ensure that NPPs can be running safety, it can be used to realized the analog signals data acquisition, conversion and processing, also it provides reliable sampling signals for NPPs protection system. Analog input module uses CPU technology and simulation technology commonly in NPPs recently. The article takes into account the analog input module security and reliability requirements, the technical indica- tors and so on. The hardware circuit design and the internal working flow based on FPGA Technology are provided. Through the functional of analog input module debugging and verifying, the experiment results show that FPGA can be used as another way to acquire the operation parameters in NPPs.