基于模糊多模型的堆芯功率控制

传统的堆芯功率PID控制器是基于单一功率水平处的堆芯局部模型设计的，难以准确描述整个堆芯功率水平范围的控制。因此，本文基于5个不同功率水平下的传递函数模型，通过三角隶属度函数加权，建立堆芯模糊多模型，并依据该模型设计堆芯功率模糊PID控制。以TMI型压水堆堆芯为对象，开展不同初始功率水平下的堆芯功率跟踪、堆芯进口温度扰动的控制仿真。结果表明，基于模糊多模型设计的堆芯功率模糊PID控制器可实现对堆芯功率的良好控制。

Core Power Control Based on Fuzzy Multi-model

The traditional core power PID controller is designed based on a local core model at a single power level. It is difficult to accurately describe the control of the whole core power level range. Therefore, based on five transfer function models at different power levels, the core fuzzy multi-model was established by weighting the triangular membership function. According to the model, the core power fuzzy PID control was designed. Taking TMI PWR core as the object of study, the control simulations of core power tracking and temperature disturbance at core inlet at different initial power levels were carried out. The results show that the core power fuzzy PID controller based on the fuzzy multi-model design can achieve good control of the core power.