New Design Methods of Actuator Saturation Compensators for Proportional, Integral and Derivative Controllers

Authors: Hui K.¹; Chan C.W.²

Source: Proceedings of the I MECH E Part I Journal of Systems & Control Engineering, Volume 211, Number 4, 22 July 1997 , pp. 269-280(12)

Publisher: Professional Engineering Publishing

Key:

- Free Content

- New Content

- Subscribed Content

- Free Trial Content

Abstract:

This paper proposes five new schemes of saturation compensator designs for PID (proportional, integral and derivative) controllers. Unlike previous works, these are derived using frequency domain techniques. Based on stability analysis of the compensated systems, compariso ns of stabilities of the compensation schemes relative to each other are established, with the result that their relative orders depend only on the PI/PID parameters. A new class of variable-structure compensator s is also proposed. These variable-structure compensators combine the advantages of their individual constituents to achieve better results. Design procedures, for both fixed- and variable-structure compensators, are then presented as the main theme of this paper. Results for the relative stabilities and design procedures are illustrated with examples, showing the validity and superiority of the proposed methods

Keywords: actuator; saturation; PID; controller; compensator; stability; design; methods

Language: English

Document Type: Research article

Affiliations: 1: Department of Mechanical Engineering, University of Hong Kong 2: Department of Mechanical Engineering, University of Hong Kong

The full text electronic article is available for purchase. You will be able to download the full text electronic article after payment.

$33.75 plus tax