Multivariable disturbance observer-based H analytical decoupling control design for multivariable systems

Wei Zhang, Yagang Wang, Yurong Liu and Weidong Zhang

International Journal of Systems Science, 2016, vol. 47, issue 1, 179-193

Abstract: In this paper, an H2 analytical decoupling control scheme with multivariable disturbance observer for both stable and unstable multi-input/multi-output (MIMO) systems with multiple time delays is proposed. Compared with conventional control strategies, the main merit is that the proposed control scheme can improve the system performances effectively when the MIMO processes with severe model mismatches and strong external disturbances. Besides, the design method has three additional advantages. First, the derived controller and observer are given in analytical forms, the design procedure is simple. Second, the orders of the designed controller and observer are low, they can be implemented easily in practice. Finally, the performance and robustness can be adjusted easily by tuning the parameters in the designed controller and observer. It is useful for practical application. Simulations are provided to illustrate the effectiveness of the proposed control scheme.

Date: 2016
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DOI: 10.1080/00207721.2015.1036479

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