Maximum Sensitivity Based Robust Tuning for Two-Degree-of-Freedom Proportional-Integral Controllers

被引:11
作者
Alfaro, V. M. [1 ]
Vilanova, R. [2 ]
Arrieta, O. [2 ]
机构
[1] Univ Costa Rica, Dept Automat, Escuela Ingn Elect, San Jose 115012060, Costa Rica
[2] Univ Autonoma Barcelona, Dept Telecomunicacio & Engn Sistemes, E-08193 Barcelona, Spain
关键词
PID CONTROLLERS; PHASE MARGIN; DESIGN;
D O I
10.1021/ie901617y
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A tuning method for two-degree-of-freedom (2-DoF) proportional-integral (PI) controllers for first-order-plus-dead-time (FOPDT) models is presented It allows the designer to deal with the closed-loop control system per formance robustness trade-off specifying the lowest robustness level allowed by selecting a maximum sensitivity in the 1.4-2.0 range. In addition, a smooth performance is obtained by forcing the regulatory and servo-control closed-loop transfer functions to perform as close as possible to a target nonoscillatory dynamics Controller tuning rules are provided for FOPDT models with normalized dead-times from 0.1 to 2.0 Comparative examples show the effectiveness of the proposed tuning method.
引用
收藏
页码:5415 / 5423
页数:9
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