Disturbance Observer-Based Integral Sliding-Mode Control for Systems With Mismatched Disturbances

This paper develops the disturbance observer-based integral sliding-mode control approach for continuous-time linear systems with mismatched disturbances or uncertainties. The disturbance observer is proposed to generate the disturbance estimate, which can be incorporated in the controller to counte...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2016-11, Vol.63 (11), p.7040-7048
Main Authors: Zhang, Jinhui, Liu, Xinwei, Xia, Yuanqing, Zuo, Zhiqiang, Wang, Yijing
Format: Article
Language:English
Subjects:
Boolean functions
Data structures
Disturbance observer
integral sliding-mode control (ISMC)
Linear systems
Observers
Robustness
Sliding mode control
Uncertainty
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Summary:This paper develops the disturbance observer-based integral sliding-mode control approach for continuous-time linear systems with mismatched disturbances or uncertainties. The disturbance observer is proposed to generate the disturbance estimate, which can be incorporated in the controller to counteract the disturbance. With the help of the proposed disturbance observer, both the memoryless and memory-based integral sliding surfaces and integral sliding-mode controllers are developed, respectively, and two approaches, i.e., H ∞ control and steady-state output-based approaches, are proposed to design the controller and disturbance rejection gains. Finally, the effectiveness and applicability of the proposed technique are illustrated by a numerical example and a real-time experiment.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2016.2583999