核电站安全级DCS系统应用软件逻辑测试方法的研究与优化

Research and Optimization of Logic Testing Method for Application Software of Safety-Level DCS System in Nuclear Power Plant

针对核电站安全DCS控制系统逻辑进行分析研究,通过分析目前应用软件逻辑测试方法,得到当前测试方法仅支持单站测试且使用仿真模拟环境,无法提供控制站集成后的真实运行环境。为解决这些问题,提出了一种新型核电站安全级DCS控制系统逻辑自动测试方法,通过搭建多控制站应用软件逻辑测试真实环境,实现多站逻辑同时测试,并优化测试用例设计,实现核电站安全级DCS控制系统逻辑测试。该方法目前已经在防城港3号机组安全级DCS项目使用,通过使用结果来看,此方法不仅能够有效地提高了测试效率,降低人为失误率,并且能够提高测试精度,为今后的其他核电站项目的逻辑测试提供了借鉴。

This paper analyzes and studies the logic of nuclear power plant safety DCS control system.By analyzing the logic testing methods of current application software,it is found that the current testing methods only support single-station testing and use the simulation environment,and cannot provide the real operation environment after the control station integration.In order to solve these problems,a new logic automatic testing method of safety level DCS control system for nuclear power plants is proposed.By building the logic testing environment of application software of multiple control stations,the logic testing of multiple stations is realized simultaneously,and the logic testing of safety level DCS control system for nuclear power plants is realized by optimizing the design of test cases.At present,this method has been used in the safety level DCS project of FangChenggang No.3 Unit.The results show that this method can not only effectively improve the test efficiency,reduce the human error rate,but also improve the test accuracy,which provides a reference for the logic testing of other nuclear power plant projects in the future.