Title: Robust decoupling control of BTT vehicle based on PSO

Authors: Zhi-xiang Deng, Yong-ji Wang, Fan Gu, Chuan-feng Li

Addresses: Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China. ' Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China. ' Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China. ' Department of Computer and Information Engineering, Luoyang Institute of Science and Technology, Luoyang, 471003, P.R. China

Abstract: A robust decoupling control method for BTT vehicle based on particle swarm optimisation (PSO) is proposed. According to the vehicle|s characteristics such as nonlinearity, strong coupling and MIMO, firstly, the reason of the coupling between channels is analysed from the construct of BTT vehicle|s mathematical model. Next, Gershgorin circle is adopted to analyse the diagonal dominance of this system. Furthermore, a robust decoupling matrix of the linearised models is obtained by using PSO, which makes the system fulfilled the diagonal dominance. Finally, quantitative feedback theory (QFT) is used to design the controller and the final results of the simulation show that this robust decoupling controller is effective and practical for engineering application.

Keywords: decoupling control; particle swarm optimisation; PSO; MIMO; nonlinear system; quantitative feedback theory; QFT; robust control; mathematical modelling; missile control; bank-to-turn; BTT vehicles; autopilot design.

DOI: 10.1504/IJBIC.2010.030043

International Journal of Bio-Inspired Computation, 2010 Vol.2 No.1, pp.42 - 50

Available online: 03 Dec 2009 *

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