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Browse Journals & Magazines > Systems Engineering and Elect ...> Volume:18 Issue:1 Help

QFT control based on zero phase error compensation for flight simulator

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2 Author(s)
Jinkun, Liu ; Dept. of Automatic Control, Beijing Univ. of Aeronautics and Astronautics, Beijing 100083, P. R. China ; Yuzhu, He

To improve the robustness of high-precision servo systems, quantitative feedback theory (QFT) which aims to achieve a desired robust design over a specified region of plant uncertainty is proposed. The robust design problem can be solved using QFT but it fails to guarantee a high precision tracking. This problem is solved by a robust digital QFT control scheme based on zero phase error (ZPE) feed forward compensation. This scheme consists of two parts: a QFT controller in the closed-loop system and a ZPE feed-forward compensator. Digital QFT controller is designed to overcome the uncertainties in the system. Digital ZPE feed forward controller is used to improve the tracking precision. Simulation and real-time examples for flight simulator servo system indicate that this control scheme can guarantee both high robust performance and high position tracking precision.

Published in:
Systems Engineering and Electronics, Journal of  (Volume:18 ,  Issue: 1 )

Date of Publication: March 2007

Page(s):
125 - 131
Digital Object Identifier :
10.1016/S1004-4132(07)60062-0
Product Type:
Journals & Magazines
Date of Current Version :
17 January 2012
Issue Date :
March 2007
Sponsored by :
Beijing Institute of Aerospace Information (BIAI)

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