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Designs 2018, 2(1), 3; doi:10.3390/designs2010003

Adaptive Sliding Mode Control for High-Frequency Sampled-Data Systems with Actuator Faults

Harbin Institute of Technology, Harbin 150001, China
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Received: 14 December 2017 / Revised: 11 January 2018 / Accepted: 11 January 2018 / Published: 17 January 2018
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Abstract

This paper investigates the sliding mode control for high-frequency sampled-data systems with actuator faults. Besides matched nonlinearity, this paper also considers unmeasurable states and unknown actuator degradation ratio as important factors of the overall system. The estimates of system state vector are obtained by an adaptive sliding mode observer method firstly. Then, a novel integral-type sliding surface, corresponding to the unified closed-loop delta operator system, is provided based on aforementioned estimation values, and the fault closed-loop system is proven to be stable by the proposed sliding mode control law. Finally, the fault-tolerant control theory is verified to be valid via a practical simulation example. View Full-Text
Keywords: high frequency sampled-data systems; actuator faults; sliding mode control; delta operator systems high frequency sampled-data systems; actuator faults; sliding mode control; delta operator systems
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhao, D.; Liu, Y.; Liu, M.; Yu, J. Adaptive Sliding Mode Control for High-Frequency Sampled-Data Systems with Actuator Faults. Designs 2018, 2, 3.

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