Journal of Shanghai Jiaotong University ›› 2011, Vol. 45 ›› Issue (03): 393-397.

• Automation Technique, Computer Technology • Previous Articles     Next Articles

Research of Sliding Mode Controller for Flight Simulator Based  on Disturbance Observer

 LIU  Xiao-Dong, WU  Yun-Jie, TIAN  Da-Peng, WANG  Jun-Feng   

  1. (School of Automation Science and Electrical Engineering, Science and Technology on Aircraft Control Laboratory, Beihang University, Beijing 100191, China)
  • Received:2010-10-12 Online:2011-03-30 Published:2011-03-30

Abstract: Because disturbance observer (DOB) underestimates the equivalent disturbances in flight simulator system, one sliding mode variable structure controller (SMVSC) based on DOB was proposed. The controller introduces additional compensation for disturbances, velocity and acceleration of tracking signals, and a new sliding approach law for the SMVSC was defined, then the system meets the conditions for the existence of generalized sliding mode. The experiments on one singleaxis flight simulator show that the proposed control scheme improves the tracking performance with more robustness against parameter uncertainty and extern disturbance, contrasted with the traditional PD+DOB scheme.

Key words: disturbance observer, sliding mode variable structure control, flight simulator, robustness

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