Integral state-feedback control of linear time-varying systems: A performance preserving approach

被引：4

作者：

Seeber, Richard ^{[1
]}

Tranninger, Markus ^{[2
]}

机构：

[1] Graz Univ Technol, Inst Automation & Control, Christian Doppler Lab Model Based Control Complex, Graz, Austria

[2] Graz Univ Technol, Inst Automation & Control, Graz, Austria

来源：

AUTOMATICA | 2022年 / 136卷

关键词：

Time-varying systems; Multivariable systems; Disturbance rejection; Integral control; Windup mitigation; OBSERVERS;

D O I：

10.1016/j.automatica.2021.110000

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

An integral extension of state-feedback controllers for linear time-varying plants is proposed, which preserves performance of the nominal controller in the unperturbed case. Similar to time-invariant state feedback with integral action, the controller achieves complete rejection of disturbances whose effective action on the plant is constant with respect to the control input. Moreover, bounded-input bounded-state stability with respect to arbitrary disturbances is shown. A modification for preventing controller windup as well as tuning guidelines are discussed. The efficacy of the proposed technique is demonstrated in simulation for a two-tank system that is linearized along a time-varying reference trajectory. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：9

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