Relay based gain and phase margins PI controller design

被引：0
|
作者：
de Arruda, GHM [1 ]
Barros, PR [1 ]
机构：
[1] Univ Fed Paraiba, Dept Elect Engn, BR-58109970 Campina Grande, PB, Brazil
来源：
IMTC/2001: PROCEEDINGS OF THE 18TH IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-3: REDISCOVERING MEASUREMENT IN THE AGE OF INFORMATICS | 2001年
关键词：
relay tests; PI controller tuning; gain and phase margins; iterative procedure;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper an iterative procedure for achieving gain and phase margin specifications for a PI controller is presented. The iteration scheme is based on the use of two relay tests applied to the closed loop system. The first relay test is standard and it is used here to obtain the gain margin of the closed loop system at each iteration step. The second one is applied to the closed loop system such that a limit cycle is developed at the loop gain crossover frequency. Under this condition it is possible to obtain an estimate of the phase margin of the loop transfer function. The procedure is applied to a PI controller tuning in a heat exchanger in laboratory scale using desired gain and phase margin specifications.
引用
收藏
页码：1189 / 1194
页数：4
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