高技术通讯2011，Vol.21Issue(5)：503-508,6.DOI:10.3772/j.issn.1002-0470.2011.05.010
基于H2/H∞优化的微纳卫星饱和姿态控制器设计
Design of saturating attitude controller for microsatellites based on H2/H∞ optimization
摘要
Abstract
This paper concerns the robust performance and input saturation problem for attitude control of a microsatellite, and presents a novel method for design of PID saturation attitude controllers for microsatellites based on the mixed H2/H∞ optimization. The method takes account of the problem that the pointing accuracy of microsatellites is vulnerable to space environmental disturbances and the intemal uncertainty of moment-of-inertia variation due to its smaller size and weight,and considers the saturation problem of control actuators for its physical configuration and energy confinement, and the input uncertainty for the installation error of the actuator could also deteriorate the performance of the attitude control system, so the anti-interference performance of the attitude control system can be effectively improved. For a PID controller is feasible for spacecraft attitude control, the mixed H2/H∞ performance index was used to optimize the parameters of robust anti-interferential PID saturation attitude controller for microsatellites. The simulation results demonstrate that the presented controller can improve the robustness and the dynamic response performance, and the input saturation can be effectively refused.关键词
微纳卫星/姿态控制/鲁棒控制/H2/H∞优化/饱和控制/PID控制Key words
microsatellite/ attitude control/ robust control/ H2/H∞ optimization/ saturation/ PID control引用本文复制引用
刘华,郭雷,杨照华,吴忠,韩潮..基于H2/H∞优化的微纳卫星饱和姿态控制器设计[J].高技术通讯,2011,21(5):503-508,6.基金项目
863计划(2008AA12A216)和国家自然科学基金(60774013,60925012)资助助项目. （2008AA12A216）
