火电机组主汽温的模糊免疫PID控制研究

火电厂主汽温控制系统具有大惯性、大迟延和时变等特性，传统多采用基于模型的常规PID串级控制方法。本文借鉴生物免疫反馈响应过程的调节作用和模糊推理逻辑可逼近非线性函数的特性，提出将模糊免疫PID控制策略应用到火电厂主汽温控制系统中。火电厂汽温控制系统的仿真研究表明：该方法的控制效果优于常规的PID控制，能适应对象参数的变化，具有较强的鲁棒性和自适应能力。

Fuzzy Immune PID Control Research of Main Steam Temperature in Fossil Fired Power Station

The main steam temperature control system has large time constant, long time-delay and time-varying in thermal power plant. The traditional control strategy of it is to use general PID cascade control method which is based on plant model. Based on the immune feedback regulating law and the approaching ability for nonlinear function of fuzzy rational logic, a fuzzy immune PID control is presented. Simulation results show that this method can adapt the changing of the parameters of the object and be have well control performance compared with PiD control, even has strong robust-ness and self-adaptive ability when disturbed.