核电厂安全级主控制器负荷率分析方法研究
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摘要
为提高系统可靠性,核电厂安全级仪表与控制系统设备对其主控制器的负荷率有严格要求.同时为缩短系统设计周期,有必要在核电厂安全级仪表与控制系统设备设计之初对负荷率进行准确预测.该文对核电厂安全级仪控系统主控制器的负荷率组成框架和主要影响因素进行了理论分析,得出了控制器负荷率的计算公式,给出了负荷率预测计算分析的总体方案.以此为基础,针对该方案中的关键环节开展了深入研究,对几种可采用的主流分析方法的适用性进行了对比分析,最终提出了一种可用于核电厂安全级主控制器负荷率预测的方法,为后续研究工作提供了基础.
Safety instrument and control system of nuclear power plant(NPP) has strict requirements on the load rate of its main controller in order to enhance the reliability. At the same time, in order to shorten the design cycle of the system, it is necessary to accurately predict the load rate at the beginning of the design of the instrument and control system. In this paper, according to the theoretical analysis for the framework and main influence factor of the main controller's load rate of the NPP's safety instrument and control system, the load rate calculation formula and the overall scheme of the main controller's load rate prediction calculation are given. On this basis, the key factor of the above scheme is studied in depth, and several mainstream analytical methods are compared and analyzed. Finally, a method for load rate prediction of safety main controller is proposed, which provides a basis for further research.
Safety instrument and control system of nuclear power plant(NPP) has strict requirements on the load rate of its main controller in order to enhance the reliability. At the same time, in order to shorten the design cycle of the system, it is necessary to accurately predict the load rate at the beginning of the design of the instrument and control system. In this paper, according to the theoretical analysis for the framework and main influence factor of the main controller's load rate of the NPP's safety instrument and control system, the load rate calculation formula and the overall scheme of the main controller's load rate prediction calculation are given. On this basis, the key factor of the above scheme is studied in depth, and several mainstream analytical methods are compared and analyzed. Finally, a method for load rate prediction of safety main controller is proposed, which provides a basis for further research.
引文
[1] 索庆江,崔鸿旭,陈德浩.I/A Series分散控制系统控制站负荷率偏高分析与对策[J].吉林电力,2012,40(1):47-49.
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[5] WANG Y J.Research on the execution time analysis technology of the worst case system in real time system[C]//International Conference on Measuring Technology and Mechatronics Automation.Changsha,China:IEEE,2017:397-402.
[6] 郑顾平,王秋萍.基于参数变化的云应用程序执行时间预估方法[J].计算机工程与应用,2017,53(11):95-99.
[7] LIU S Y,WU Y X,SUN T X,et al.Research on program execution time assessment of LLVM IR program[C]//8th International Conference on Internet Computing for Science and Engineering.Harbin,China:IEEE,2015:19-24.
[2] 肖光华,蒙磊.国产DCS在1 000 MW机组中出现的负荷率问题分析[J].神华科技,2012,10(2):56-59.
[3] SUN C A,JIA J T,LIU H,et al.A lightweight program dependence based approach to concurrent mutation analysis[C]//42nd Annual Computer Software and Applications Conference.Tokyo,Japan:IEEE,2018:116-125.
[4] DOGAN A,OZGUNER F.Biobjective scheduling algorithms for execution time-reliability trade-off in heterogeneous computing systems [J].The Computer Journal,2005,48(3):300-314.
[5] WANG Y J.Research on the execution time analysis technology of the worst case system in real time system[C]//International Conference on Measuring Technology and Mechatronics Automation.Changsha,China:IEEE,2017:397-402.
[6] 郑顾平,王秋萍.基于参数变化的云应用程序执行时间预估方法[J].计算机工程与应用,2017,53(11):95-99.
[7] LIU S Y,WU Y X,SUN T X,et al.Research on program execution time assessment of LLVM IR program[C]//8th International Conference on Internet Computing for Science and Engineering.Harbin,China:IEEE,2015:19-24.