光学精密工程2009,Vol.17Issue(7):1561-1569,9.
飞行姿态模拟器建模及输入受限混杂控制
Modeling and hybrid control of aircraft simulation with input constraints
摘要
Abstract
In order to control the flight attitude for an aircraft, a ground semi-physical flight attitude simulation system was established based on a dSPACE system. The invariant set principle and Passivity-based Controller (PBC) design method was used to deal with the aircraft simulation system,for it was a kind of higher order nonlinear control system with strong coupling. A nonlinear Euler-Lagrange (EL) dynamic model with controller constraints for the aircraft simulation system was established by the Largange method. Then, based on the internal characters of EL systems and the recent results on invariant set stability theorems of nonlinear impulsive hybrid systems, a saturation dynamical hybrid controller for the aircraft simulation system was presented, and the mathematic simulation was also given out to verify the effect of the proposed controller. Finally, a semi-physical simulation experiment was undertaken with the proposed controller.Obtained results show that the dynamic response time is about 20 s, steady-state accuracy is less than 5% and the overshoot is about 25%. These data indicate that the designed saturation controller is valid and robust to both the system parameter errors and disturbance.关键词
飞行姿态模拟器/非线性系统/Euler-Lagrange/混杂控制/dSPACEKey words
aircraft simulation system/nonlinear system/Euler-Lagrange system/hybrid control/dSPACE分类
航空航天引用本文复制引用
张刘,金光,郑亮亮..飞行姿态模拟器建模及输入受限混杂控制[J].光学精密工程,2009,17(7):1561-1569,9.基金项目
国家863高科技研究发展计划资助项目(No.2007aa12J123) (No.2007aa12J123)