U-model enhanced control of nonminimum-phase dynamic systems

Qiu, Ji; Zhu, Quanmin; Nibouche, Mokhtar; Yao, Yufeng

Abstract

In this study, U-model based control system design methodology is expanded into control of nonminimum-phase (NMP) dynamic systems. With U-model framework, a desired minimum-phase (MP) plant is established, which forms as a generic prototype. To achieve the same output response as the desired MP plant, the NMP zeros of plant are removed (NB not cancelled) by feedforward controllers, using the linear polynomial provided by U-model approach. While the NMP zeros are removed, the rest of the design procedure gets back to the standard U-model control routines. The study presents the details of analytical development and computational experiment demonstrations. In addition, the study provides benchmark examples for users with their ad hoc control of NMP systems.

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: 8th International Conference on Modelling, Identification and Control (ICMIC-2016)
• Start Date: Nov 15, 2016
• End Date: Nov 17, 2016
• Acceptance Date: Aug 23, 2016
• Publication Date: Jan 5, 2017
• Deposit Date: Jan 20, 2017
• Peer Reviewed: Peer Reviewed
• ISBN: 9780956715777
• Keywords: U-model, nonminimum-phase, linear system, discrete-time system, nonminimum-phase zero
• Public URL: https://uwe-repository.worktribe.com/output/900284
• Publisher URL: http://dx.doi.org/10.1109/ICMIC.2016.7804191
• Additional Information: Title of Conference or Conference Proceedings : 8th International Conference on Modelling, Identification and Control (ICMIC-2016)
• Contract Date: Jan 20, 2017