基于过程辨识的PID参数自动整定

PID PARAMETER AUTO-TUNING BASED ON PROCESS IDENTIFICATION

从标准的ＰＩＤ控制器结构出发，导出了一类基于被控过程辨识的ＰＩＤ参数自动整定算法，对由此构成的自校正ＰＩＤ控制系统的稳定性和其他性能进行了理论分析和仿真研究．结果表明，该算法对开环稳定的非最小相位过程具有良好的控制效果，但如果离散化方法选取不当，将导致闭环系统不稳定．

Derives a PID parameter auto-tuning algorithm based on process identification from anormal PID controller. The stability analysis and simulation show high effectiveness of the algorithmfor open-looped stable nonminimum phase systems.But the clase-looped system will be unstable in caseof inappropiate discretization.