Frequency domain approach to self-tuning PID control

被引：14

作者：

Ho, WK ^{[1
]}

Hang, CC ^{[1
]}

Wojsznis, W ^{[1
]}

Tao, QH ^{[1
]}

机构：

[1] FISHER ROSEMOUNT SYST DIV, AUSTIN, TX 78754 USA

来源：

CONTROL ENGINEERING PRACTICE | 1996年 / 4卷 / 06期

关键词：

self-tuning control; proportional plus integral plus derivative controllers; frequency tracking; relay control; process identification;

D O I：

10.1016/0967-0661(96)00071-8

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The design of an adaptive PID controller using the frequency domain approach is presented. The algorithm is robust. It is not affected by low-frequency disturbances or high-frequency noise. The identified process model can be validated. For most industrial processes, the phase and amplitude of the Nyquist curve are monotone functions of frequency. The identification results can thus be rejected if they do not satisfy this monotone condition. Supervision, which is very important in adaptive control is included in the design. An implementation on a heat exchanger is also presented.

引用

页码：807 / 813

页数：7

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