大型压水堆核电机组建模研究

Modeling research on large pressurized water reactor nuclear power plant

针对目前应用最为广泛的压水堆核电机组,提出适用于电力系统机电暂态及中长期动态仿真的大型核电机组及其控制保护系统的完整数学模型,并用于电力系统全过程动态仿真,仿真结果验证该模型的正确性和有效性,表明该模型较为准确地反映了扰动后核电机组的动态响应过程,为研究核电站内部的过渡过程和大规模核电机组接入电网的控制策略提供了有力工具.

For the most widely used nuclear pressurized water reactor unit, a complete mathematical model of large nuclear power unit and its control and protection systems is proposed in this paper. The model is suitable for power system electromechanical transient and long-term dynamic simulation. Simulation calculation results showed that the model can accurately represent the dy- namic performance of nuclear power generating units after disturbance, and the model＇s validity and effectiveness were verified. The model can be used to study the internal transition process of nuclear power plants and analyze the appropriate control strategy for the large-scale nuclear power generating units connected to the grid.