A Discrete-Time Chattering Free Sliding Mode Control with Multirate Sampling Method for Flight SimulatorReport as inadecuate




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Mathematical Problems in EngineeringVolume 2013 2013, Article ID 865493, 8 pages

Research Article

School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China

Beijing Simulation Center National Defense Science and Technology Key Laboratory of Missile Control System Simulation, Beijing 100854, China

Received 26 March 2013; Accepted 29 April 2013

Academic Editor: Yu Kang

Copyright © 2013 Yunjie Wu et al. 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.

Abstract

In order to improve the tracking accuracy of flight simulator and expend its frequency response, a multirate-sampling-method-based discrete-time chattering free sliding mode control is developed and imported into the systems. By constructing the multirate sampling sliding mode controller, the flight simulator can perfectly track a given reference signal with an arbitrarily small dynamic tracking error, and the problems caused by a contradiction of reference signal period and control period in traditional design method can be eliminated. It is proved by theoretical analysis that the extremely high dynamic tracking precision can be obtained. Meanwhile, the robustness is guaranteed by sliding mode control even though there are modeling mismatch, external disturbances and measure noise. The validity of the proposed method is confirmed by experiments on flight simulator.





Author: Yunjie Wu, Youmin Liu, and Wulong Zhang

Source: https://www.hindawi.com/



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