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Decoupling Controller with Disturbance Observer for LTI MIMO Systems
Author(s) -
Yin Hao,
Lin Shuyi,
Ye Fei,
Zhang Weidong
Publication year - 2020
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.1947
Subject(s) - control theory (sociology) , decoupling (probability) , multivariable calculus , mimo , control engineering , inverse system , lti system theory , computer science , engineering , inverse , linear system , mathematics , control (management) , electronic engineering , beamforming , mathematical analysis , geometry , artificial intelligence
In this paper, a decoupling multivariable control strategy for linear time‐invariant (LTI) multi‐input/multi‐output (MIMO) systems is proposed. The strategy includes a multivariable disturbance observer (MDOB) and a decoupling controller. This MDOB is introduced to improve the system performances when the system encounters severe external disturbances. H 2 optimal scheme is utilized to design the MDOB filter. The controller is developed based on an inverse control method, through which the design process can be simplified. Simulation results certify the effectiveness of the proposed control strategy.