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Global stabilization control for multiple input multiple output nonlinear systems with unknown function vector
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DOI：10.1002/rnc.6707.png)
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摘要
En 中文
In this article, a control algorithm is proposed to solve the global stabilization control problem of multiple input multiple output (MIMO) nonlinear systems with unknown function vectors (UFVs). Firstly, a Lemma dealing with UFVs is proposed. Then, combined with the backstepping method, the controller is designed such that all signals of the closed-loop system are globally stable. Compared with the approximation method, the algorithm in this article solves the global stabilization control problem. Compared with the assumptions of UFVs, the algorithm in this article reduces the conservatism problem. At the same time, the algorithm in this article also solves the explosion of terms problem of backstepping. Compared with the methods to solve this problem: dynamic surface control (DSC) and direct fuzzy control, the algorithm in this article can make all signals of the closed-loop system converge to the origin. Finally, the algorithm is applied to the model of spacecraft with modified Rodrigues parameters, and the simulation results show the effectiveness of this algorithm.
Keyword:
backstepping
global stabilization control
multiple input multiple output
nonlinear systems
期刊
IF:
3.2
论文数:
7.0K
被引数:
1.4W
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