Final Revision.pdf (609.46 kB)
Download file

Predictor-based disturbance rejection control for sampled systems with input delay

Download (609.46 kB)
journal contribution
posted on 08.12.2017, 13:34 by Tao Liu, Shoulin Hao, Dewei Li, Wen-Hua ChenWen-Hua Chen, Qing-Guo Wang
To cope with input delay involved with many industrial system operations, a predictor-based disturbance rejection control (PDRC) scheme is proposed in discrete-time domain for sampling implementation, which can be generally applied for open-loop stable, integrating and unstable processes. An extended state observer (ESO) is introduced to estimate not only the deterministic system state but also the generalized disturbance composed of system uncertainties and external disturbance, based on a filtered Smith predictor to estimate the delay-free output response. Correspondingly, by specifying the desired poles of ESO and the closed-loop control system, the ESO gain vector and the PDRC controller are analytically derived. A notable merit is that there is a single tuning parameter in the proposed ESO, output predictor, and the PDRC controller, which can be monotonically tuned to achieve a good trade-off between the prediction (or control) performance and its robustness. A sufficient robust stability condition of the closed-loop system is established in terms of linear matrix inequality (LMI). An illustrative example from the literature along with an application to the temperature control system for a crystallization reactor is used to demonstrate the effectiveness and advantage of the proposed control method.

Funding

This work is supported in part by the NSF China Grants 61633006 and 61473054, and the National Thousand Talents Program of China.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

IEEE Transactions on Control Systems Technology

Citation

LIU, T. ... et al, 2017. Predictor-based disturbance rejection control for sampled systems with input delay. IEEE Transactions on Control Systems Technology, 27 (2), pp.772-780.

Publisher

© IEEE

Version

AM (Accepted Manuscript)

Acceptance date

26/11/2017

Publication date

2017

Notes

© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

ISSN

1063-6536

Language

en