应用时标分离和动态逆方法设计飞行器的姿态控制系统

在对飞行器的姿态控制过程中,针对飞行器姿态控制系统模型的非线性特性,线性的控制方法难以直接应用,应用非线性控制理论来设计姿态控制律十分必要。结合时标分离的思想将系统姿态的运动学部分和动力学部分分别视为慢变子系统和快变子系统,2次应用动态逆的设计方法来设计控制律,仿真结果表明,系统能够快速地跟踪期望的姿态角,跟踪的精度高,该方法简单可行,具有一定的实用性。

Design Method to Attitude Control System of Flying Vehicle with Dynamic Inversion and Time-Scale Separation

During the course of attitude control of a flying vehicle,to the nonlinearity from the attitude control system,for difficult to use linear control theory,using nonlinear control theory to design the law of control is necessary.Using the idea of time-scale separation,the motion and the dynamic of the system is deemed as quick-subsystem and slow-subsystem.Dynamic inversion is used to design the control law twice.The result from simulation shows the system can track expectable attitude angle rapidly with high accuracy and the method is easy and feasible with practicability.