Cascade Fractional-Order PI Control of a Linear Positioning System

被引：7

作者：

Lino, Paolo ^{[1
]}

Malone, Guido ^{[1
]}

机构：

[1] Polytech Univ Bari, Dept Elect & Informat Engn, Bari, Italy

来源：

IFAC PAPERSONLINE | 2018年 / 51卷 / 04期

基金：

欧盟地平线“2020”;

关键词：

Fractional systems; infinite-dimensional systems; linear systems; fractional-order PI control; cascade control; tuning rules; regulation; robust control; frequency response;

D O I：

10.1016/j.ifacol.2018.06.154

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a method for designing robust fractional-order proportional integral (FOPI) controllers to be employed in a cascade control system. The FOPI controllers are employed for controlling two nested loops. The design is based on performance and robustness specifications in the frequency domain. Taking inspiration from well-known tuning rules, the open-loop frequency response in the two nested loops is shaped around the gain crossover frequency to obtain a nearly flat phase diagram, then a nearly constant phase margin. The method is tested to control the speed and position of a linearly sliding motor. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

引用

页码：557 / 562

页数：6

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