三容实验系统的变结构PID控制

Variable Structure PID Control of Three-Tank System

基于非线性系统的反馈线性化,介绍了一种变结构PID控制方法．该方法能够有效地改善有控制量约束系统的控制性能．以某试验系统为被控对象,在对其进行反馈线性化同时实现静态解耦的基础上,给出了变结构PID控制的实验结果,并与常规PID控制进行了比较．结果表明了变结构PID控制的优越性．

Based on feedback linearization of nonlinear systems,this paper introduces a control strategy called the variable-structure PID. This method can improve the performance of the input-constrained system. The feedback linearization of experimental systems is used as a controlled plant, experimental results are presented by using the control scheme. The comparison with common PID controller shows the priority of the variable-structure PID strategy.