A Compound Fuzzy Disturbance Observer Based on Sliding Modes and Its Application on Flight Simulator

Yunjie Wu, Youmin Liu and Dapeng Tian

Mathematical Problems in Engineering, 2013, vol. 2013, 1-8

Abstract:

A compound fuzzy disturbance observer based on sliding modes is developed, and its application on flight simulator is presented. Fuzzy disturbance observer (FDO) is an effective method in nonlinear control. However, traditional FDO is confined to monitor dynamic disturbance, and the frequency bandwidth of the system is restricted. Sliding mode control (SMC) compensates the high-frequency component of disturbance while it is limited by the chattering phenomenon. The proposed method uses the sliding mode technique to deal with the uncompensated dynamic equivalent disturbance. The switching gain of sliding mode control designed according to the error of disturbance estimation is a small value. Therefore, the proposal also helps to decrease the chattering. The validity of the proposal method is confirmed by experiments on flight simulator.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:913538

DOI: 10.1155/2013/913538

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