定量反馈理论在鲁棒飞行控制律设计中的应用

doi:10.3969/j.issn.1001-506X.2011.11.22

Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (11): 2458-2462.doi: 10.3969/j.issn.1001-506X.2011.11.22

定量反馈理论在鲁棒飞行控制律设计中的应用

刘博¹, 方舟², 李平^1,2

1. 浙江大学工业技术研究所, 浙江杭州 310027； 2. 浙江大学航空航天学院, 浙江杭州 310027

出版日期:2011-11-25 发布日期:2010-01-03

Robust flight control law design using QFT

LIU Bo¹, FANG Zhou², LI Ping^1,2

1. Institution of Industrial Control, Zhejiang University, Hangzhou 310027, China; 2. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China

Online:2011-11-25 Published:2010-01-03

摘要/Abstract

摘要：

定量反馈理论（quantitative feedback theory, QFT）是一种频域鲁棒设计方法,定量地将系统结构摄动不确定性和性能设计指标反映到Nichols图上进行分析和设计,从而保证系统在跟踪性和鲁棒性两个方面均能达到设计要求。针对QFT的特点,将QFT方法应用到某型无人机纵向飞行控制律设计中。仿真结果表明,与利用经典控制理论设计的控制律相比,基于QFT的鲁棒控制律在跟踪性能、鲁棒性能和控制效率方面更加优秀,验证了该方法在飞行控制律设计中的有效性。

Abstract:

Quantitative feedback theory (QFT) is a robust control design method in frequency domain. To guarantee tracking and stability performances of a control system with parametic uncertainties, QFT quantitatively projects the uncertainty and design specifications on the Nichols chart. Due to the characteristics of QFT, it is used to design a longitudinal flight control law for a subsonic unmanned aerial vehicle (UAV). The simulation results show that compared with the control law designed by the classic control theory, the robust control law by using QFT is better in tracking and stability performances and with higher control efficiency. And the application of QFT in the flight control law design is validated.

中图分类号:

TP 273

刘博, 方舟, 李平. 定量反馈理论在鲁棒飞行控制律设计中的应用[J]. Journal of Systems Engineering and Electronics, 2011, 33(11): 2458-2462.

LIU Bo, FANG Zhou, LI Ping. Robust flight control law design using QFT[J]. Journal of Systems Engineering and Electronics, 2011, 33(11): 2458-2462.

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[3]	肖小石, 毛志忠. 时滞大系统的模型参考鲁棒自适应分散控制[J]. Journal of Systems Engineering and Electronics, 2011, 33(11): 2501-2505.
[4]	马力伟, 田作华, 施颂椒. 网络化控制系统观测器/控制器集成设计方法[J]. Journal of Systems Engineering and Electronics, 2011, 33(2): 395-398.

定量反馈理论在鲁棒飞行控制律设计中的应用

Robust flight control law design using QFT

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