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二阶时滞系统PI控制器稳定参数集快速算法

, PP. 5-8

Keywords: 时滞系统,稳定性,PI控制

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Abstract:

PID控制是自动控制中应用最广泛的一种控制方法.针对工业控制过程中普遍存在的二阶时滞系统,通过在kp-ki平面上绘制稳定边界线,给出了快速计算PI控制器所有稳定参数集的方法,并且给出了系统开环不稳定情形下稳定PI控制器的存在必要性条件.通过在该稳定参数区域上进行性能指标寻优,可以得到满意控制器设计性能指标要求的PI控制器参数区域.仿真实例表明了该方法的优越性,为控制系统的控制器设计提供了一个简单高效的设计方法.

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