核电厂模拟机电气系统建模与仿真

Electric System Modeling and Simulation for Nuclear Power Plant Simulator

核电厂全范围模拟机电气系统数量众多导致仿真计算量巨大,设计参数的缺失影响仿真精度,系统数据接口之间的数值传输需要实时准确。为提高仿真计算效率、精度和保证实时数据传递,阐述了系统仿真策略和参数分类存取方法;基于电动机、静态负荷及低压开关模型和仿真,重点讨论了模块参数的反算功能和接口数据实时传递原理。以某1000MW核电厂电动机及电气系统主接线为例,对仿真模型和方法进行了分析和验证。仿真结果证明:采用电气系统仿真策略和仿真方法,有效减少了全范围模拟的电气系统数量,对设备参数进行分类存取,提高了仿真计算效率;关键模型参数的自动反算和系统设备接口数据的及时准确传输,保证了计算的简洁性和数据传输的实时性;同时模型的仿真精度满足设计要求。仿真模型方法及开发工具在核电厂模拟机电气系统建模与仿真中具有广泛的适用性。

All the large numbers of electrical systems in the nuclear power plant are full simulated will result in the low simulation efficiency and the heavy workload. The lack of system design data will influence simulation precision. The real time and accurate transfer of system interface data for full scope simulator is necessary. This paper introduces simulation strategy and the method of model parameter classification save and calculate , discusses the automatic reverse calculate function and the principle of real time data transfer based on the electrical motor and breaker simulation model. Electric system and equipment simulation model and development methods are analysis and verification by the electrical main single diagram and motor in the 1 000 MW nuclear power plant. The simulation results show that simulation strategy and method is effective to improve the computation efficiency, maintain the real time data transfer and meet the simulation precision requirement. The simulation method and development tools are applicable to electric system modeling and simulation for nuclear power plant simulator.