摘要
火电厂主汽温控制系统具有大惯性、大迟延和时变等特性, 传统的火电厂主汽温控制系统大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。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并表现出良好的控制品质, 即使发生扰动时也具有较强的鲁棒性和自适应能力。
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 behave well control performance compared with PID control, even has strong robustness and self-adaptive ability when disturbed.
出处
《计算机测量与控制》
CSCD
2005年第3期250-251,共2页
Computer Measurement &Control
