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- Title
Reduction of Conservativeness of Robust PID Control System Design Method: An Approach Using the Mapping Theorem and the Cremer–Leonhard–Mikhailov Criterion.
- Authors
Terui, Ryo; Matsuda, Tadasuke; Nakamura, Yukinori
- Abstract
This paper gives a novel method to design less‐conservative robust PID control systems. The partial model matching method is a design method for PID control systems. That is a method to design a control system that matches a reference model as closely as possible. This method does not guarantee robust stability of a PID control system because it is assumed that there are no uncertainties on the coefficients of the lower‐order terms of the plant. Therefore, in our previous work, a robust design method based on the partial model matching method was proposed. However, the drawback of this conventional method is that the results of stability analysis are conservative. In this paper, we aim to reduce the conservativeness caused by the conventional method. To achieve this goal, we use a robust stability analysis method based on the Cremer–Leonhard–Mikhailov criterion and the mapping theorem. Moreover, we also propose a new method to update the value of a design parameter. A numerical example shown in this paper implies that the conservativeness is reduced by the proposed method. © 2023 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.
- Subjects
JAPAN; ROBUST control; ROBUST stability analysis; SYSTEMS design; ELECTRICAL engineers; PERIODICAL publishing
- Publication
IEEJ Transactions on Electrical & Electronic Engineering, 2023, Vol 18, Issue 5, p730
- ISSN
1931-4973
- Publication type
Article
- DOI
10.1002/tee.23780