Improved disturbance rejection for predictor-based control of MIMO linear systems with input delay. Issue 3 (17th February 2018)

• Record Type: Journal Article
• Authors: Shi, Shang; Liu, Wenhui; Lu, Junwei; Chu, Yuming
• Is Part Of: International journal of systems science. Volume 49:Issue 3(2018)
• Page Start: 653
• Page End: 661
• Publication Date: 2018-02-17
• Subjects: Input delay -- predictor -- finite time -- disturbance observer -- mismatched disturbance; System analysis -- Periodicals; 003.3
• DOI: 10.1080/00207721.2017.1418032
• Languages: English
• ISSNs: 0020-7721

Abstract

ABSTRACT: In this paper, we are concerned with the predictor-based control of multi-input multi-output (MIMO) linear systems with input delay and disturbances. By taking the future values of disturbances into consideration, a new improved predictive scheme is proposed. Compared with the existing predictive schemes, our proposed predictive scheme can achieve a finite-time exact state prediction for some smooth disturbances including the constant disturbances, and a better disturbance attenuation can also be achieved for a large class of other time-varying disturbances. The attenuation of mismatched disturbances for second-order linear systems with input delay is also investigated by using our proposed predictor-based controller.