摘要
自主飞艇高空定点期间存在模型参数摄动及平流层风扰动变化等诸多不确定性因素。针对这种特点,采取变结构模型参考自适应控制方法设计了飞艇的定点控制器。非线性仿真结果表明,设计的控制器能够适应对象结构参数及外部扰动的大范围变化,满足定点控制精度要求,具有良好的鲁棒性和动态性能。
The parameter uncertainties lie in station keeping of autonomous airship at high attitude, such as model parameter perturbation and variation of wind turbulence of stratosphere, so station keeping controller is designed in this article, which is based on a variable structure model-following method. The nonlinear simulation results show that the controller can adapt well to large-scale variation of model parameter perturbation and wind turbulence, which can meet the requirement of location keeping accuracy very well, and has good robustness and dynamic performance.
出处
《飞行力学》
CSCD
北大核心
2008年第5期28-31,共4页
Flight Dynamics
基金
国家高技术发展计划资助项目(2007HG020016)
关键词
自主飞艇
变结构
模型参考
定点控制
autonomous airship
variable structure
model-following
station keeping control
