A New Iterative Learning Control With Time Delays for LTI Systems in Frequency Domain

被引：5

作者：

Wang, Zhenhuan ^{[1
]}

Song, Zeyu ^{[2
]}

Zeng, Qingshuang ^{[1
]}

机构：

[1] Harbin Inst Technol, Space Control & Inertial Technol Res Ctr, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Inst Technol, Sch Astronaut, Dept Control Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China

来源：

IEEE ACCESS | 2019年 / 7卷

基金：

中国国家自然科学基金;

关键词：

Iterative learning control; time delay; frequency domain; anticipatory learning control; CONTROL DESIGN; STABILITY; TRACKING;

D O I：

10.1109/ACCESS.2019.2892720

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, the problem of iterative learning control with time delay is studied for linear time-invariant (LTI) systems in the frequency domain. In terms of the LTI systems, which are formulated as one type of open-loop stable and minimum-phase systems with relative degree equaling to one, three different learning control schemes are proposed, such that the convergence of the tracking error can be guaranteed. The first scheme using the D-type algorithm with prediction can achieve wide convergence range. The second scheme applies an algorithm named A-type, which decreases noise. The third scheme is an improvement of the second one, which is a new type (AP-type) combination of the A-type and P-type ones. Moreover, for the systems with open-loop instability, non-minimum phase, and relative degree non-one, the convergence of the tracking error can still be ensured. Finally, some simulation examples are given to show the effectiveness of the proposed three control algorithms.

引用

页码：13355 / 13363

页数：9

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