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Proceedings of the 2nd International Symposium on Web Information Systems and Applications (WISA 2009)

Nanchang, China, May 22-24, 2009

Editors: Fei Yu, Jiexian Zeng, and Guangxue Yue

AP Catalog Number: AP-PROC-CS-09CN001

ISBN: 978-952-5726-00-8 (Print), 978-952-5726-01-5 (CD-ROM)

Page(s): 178-181

Design of Decoupling Control System with High Angle of Attack Based on PV Criterion

           Luo Xutao, Liang Xiaogeng, Jia Xiaohong, Jia Jie, Zhang Xiangyang, Zhao      Ke

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Abstract

There is a serious aerodynamic cross-coupling in the high-maneuvering missile flying at high angles of attack among each tunnel. When the effect of coupling is very weak, coupled items will generally be considered as a perturbation in the design of traditional three-tunnel ，overcome the coupling factors through the design of strong robust control system. However, there is a clear theory’s defects in this method: When the effect of coupling is strong, Coupling terms will change the structure of the system. Thus, decoupling need to be considered in the design of control system under high angle of attack because of the stronger aerodynamic coupling. Considering these coupling factors, this paper firstly establish small signal linear coupling model of the pitch–yaw tunnel. The decoupling controller for high angle of maneuverable missile is designed based on the multivariable control decoupling principle of P and V criterion. From the simulation, the design of decoupling control system performs well and  improves the dynamic quality of the missile.

Index Terms

missile flying at high angles of attack , PV criterion, decoupling control

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