时变滞后系统的一种自补偿模糊控制

A kind of self-compensating fuzzy control suitable for time-varying delay systems

普通模糊控制不能对时变滞后系统进行有效控制,甚至使系统失去稳定。文中分析了其控制品质变差的原因,在混合模糊PID控制器的基础上,提出了一种具有前馈控制的自补偿混合模糊PID控制器,经MATLAB仿真验证,该算法具有良好的控制品质,适应对象参数大范围变化的时滞系统,且易于工程实现。

A general fuzzy controller cannot control a timevarying delay system effectively and even causes the system to lose its stability.This paper discusses some causes for degrading control quality and presents a kind of selfcompensating fuzzy control algorithm with feedforward for the timevarying system based on fuzzy PID.The simulation of MATLAB has proved that this gorithm possesses a good control quality,which is suitable for systems with timedelay and timevarying parameters.It can be realized easily in engineering.