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Soft Variable Structure Control of Linear Systems via Desired Pole Paths

Fulltext:


Authors:

Mojtaba Kaheni, Mohammad Sami Fadali , Ali Akbarzadeh Kalat , Mohammad Hadadzarif

Research group:

Complex Real-Time Embedded Systems

Publication Type:

Journal article

Venue:

Information Technology and Control

DOI:

http://dx.doi.org/10.5755/j01.itc.47.3.18805

Abstract

In this article, a novel method of soft variable structure control of linear systems, desired pole paths, is proposed. The proposed method is helpful to reach a fast response when a continuous control signal and satisfaction of some constraints are desired. The method selects a desired path for closed loop poles instead of the exact location of poles, then the pole placement in this path is determined by solving an optimization problem subject to a control signal constraint leading to a suboptimal control structure. The stability of the proposed method is provided based on the multivariable circle criterion and the Kalman-Yakubovich-Popov lemma. A design parameter is also introduced in this paper which can adjust a tradeoff between speed of response and smoothness of the control signal. Simulation of a satellite model shows an improvement in shortening the settling time and softening the control signal compared to published soft variable structure control schemes.

Bibtex

@article{Kaheni6779,
author = {Mojtaba Kaheni and Mohammad Sami Fadali and Ali Akbarzadeh Kalat and Mohammad Hadadzarif},
title = {Soft Variable Structure Control of Linear Systems via Desired Pole Paths},
volume = {47},
number = {3},
pages = {447--456},
month = {September},
year = {2018},
journal = {Information Technology and Control},
url = {http://www.es.mdu.se/publications/6779-}
}