摘要
空间飞行器在轨运行过程中除受空间摄动外,还因飞行器任务需要产生随机扰动力和扰动力矩。针对空间飞行器受随机扰动产生的耦合运动控制问题,提出了利用自抗扰方法进行轨道保持和姿态稳定的控制方法。通过引入二阶线性扩展状态观测器,对系统总扰动和状态进行观测。结合PD控制方法结合总扰动前馈补偿,克服空间主要摄动及飞行器本身产生的随机扰动,实现轨道保持和姿态稳定。仿真试验结果表明:该方法可以有效克服总扰动的影响,实现姿轨协同控制。
During orbital operation,a spacecraft is usually perturbated by the random disturbance generated by mission requirements besides space perturbations.To address the control problem of coupled motion subject to random perturbations,a control method for orbit keeping and attitude stabilization is proposed by using an active disturbance rejection control method.A second-order linear extended state observer is introduced to observe the total perturbation and perturbated state.The perturbation-disturbance(PD)control method combined with the feedforward compensation of the total disturbance is used to overcome the space perturbations and the random disturbance generated by the vehicle itself,achieving orbit keeping and attitude stabilization.The simulation results illustrate that the method can effectively overcome the perturbations and realize the cooperative control of the attitude loop and the trajectory loop.
作者
陆晴
陈筠力
张德新
邵晓巍
孙越
LU Qing;CHEN Junli;ZHANG Dexin;SHAO Xiaowei;SUN Yue(Shanghai Institute of Satellite Engineering,Shanghai 200240,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《上海航天（中英文）》
CSCD
2023年第4期136-145,共10页
Aerospace Shanghai（Chinese&English）
基金
上海航天先进技术联合研究基金(USCAST2019-10)。
关键词
随机扰动
扩展状态观测器
自抗扰控制
轨道保持
姿态稳定
stochastic perturbation
extended state observer
active disturbance rejection control
trajectory keeping
altitude stabilization
