High-Performance Tracking Controller for Discrete Plant Using Nonlinear Sliding Surface

Bandyopadhyay, B. ; Fulwani, D. (2009) High-Performance Tracking Controller for Discrete Plant Using Nonlinear Sliding Surface IEEE Transactions on Industrial Electronics, 56 (9). pp. 3628-3637. ISSN 0278-0046

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Official URL: http://doi.org/10.1109/TIE.2008.2007984

Related URL: http://dx.doi.org/10.1109/TIE.2008.2007984

Abstract

A nonlinear sliding surface is proposed to improve the transient response for general discrete multiple-input-multiple-output linear systems with matched perturbations. The tracking case is analyzed, and it is shown that the scheme is able to achieve low overshoot and low settling time simultaneously; this is not possible with a linear sliding surface. The control law is based on the discrete-time sliding mode equivalent control and thus eliminates chattering. The control law is proposed based on two approaches: (1) reaching-law-based approach which needs only disturbance bounds and (2) disturbance-observer-based approach. Multirate output feedback is used to relax the need of the entire state vector for the implementation of the control law. A magnetic tape position control application is used to show the effectiveness of the proposed scheme.

Item Type:Article
Source:Copyright of this article belongs to Institute of Electrical and Electronics Engineers.
Keywords:Discrete-Time Sliding Mode; Multirate Output Feedback (MROF); Nonlinear Sliding Surface.
ID Code:115271
Deposited On:17 Mar 2021 05:05
Last Modified:17 Mar 2021 05:05

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