基于EA/QFT的飞行控制律设计及其稳定性评估

The Design of Flight Control law Based on EA/QFT and its Clearance

提出特征结构配置和定量反馈理论相结合的鲁棒控制设计方法,并应用该方法对某型飞机横侧向进行控制律设计,然后通过μ分析对控制律进行稳定性评估。仿真结果表明:该方法使某飞机不仅具有良好解耦效果和动态响应,而且具有较强的鲁棒性。

This paper presents a robust control design for flight control law（FCL） by using the eigenstructure assignment（EA） and quantitative feedback theory（QFT）. The eigenvalues in EA determine the decay/growth rate of the corresponding variables, The eigenvectors determine the coupling relations among various variables, and the QFT method is used to obtain robustness. The robust stability of FCL of MIMO system is tested by the μ-analysis method.