Design and Experiments of Model-free

Design and Experiments of Model-free Compound Controller of Flight Simulator

A model-free compound controller design method is proposed to achieve the wide frequency bandwidth requirement of flight simulators. The method based on quantitative feedback theory, acquires system uncertainty under different working conditions through closed-loop identification with power spectrum estimation. Then in controller designing, it makes a tradeoff between the strict requirements for magnitude-frequency characteristics and those for phase-frequency characteristics of flight simulators, by converting the indices of magnitude-frequency characteristics of flight simulators into quantitative feedback theory-based track-hag specification bounds and using feedforward controller to attain the required phase-frequency characteristics. Simulation and experimental results indicate that, when used to design inner frame controller of flight simulator, the proposed method can fulfill the requirements for wide frequency bandwidth indices. Compared with other controller design methods, it has the property of model-free and transparency.

作 者： Guo Zhifu Cao Jian Zhao Keding   作者单位： School of Mechatronic Engineering, Harbin Institute of Technology, Harbin 150001, China  刊 名： 中国航空学报（英文版）  ISTIC 英文刊名： CHINESE JOURNAL OF AERONAUTICS  年，卷(期)： 2009 22(6)  分类号： V2  关键词： model-free   quantitative feedback theory   power spectrum estimation   flight simulators   closed-loop system identifi-cation  

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