摘要
针对多星发射上面级释放掉1颗卫星后,因质心横移较大而产生质量不对称,通道间存在耦合的情况,提出采用变结构鲁棒控制的方法,使结构干扰和通道间的耦合对系统的影响衰减到一个给定的水平ρ,同时获得一个给定的H∞跟踪性能指标。理论分析和仿真结果表明,本文设计的控制系统对干扰和耦合量进行了有效的衰减,并使系统具有良好的鲁棒性。
There exists the coupling among channels caused by asymmetry of mass due to the center of mass translated after the upper stage separates one of the payload satellites.Thus,the variable structure robust control is proposed to attenuate the structure disturbance and coupling to a suitable level ρ,and achieve a H∞ tracking performance index.Theory analysis and digital simulations show that the control system can attenuate the structure disturbance and coupling effectively,and has good robustness.
出处
《航天控制》
CSCD
北大核心
2010年第3期29-32,共4页
Aerospace Control
关键词
多星发射上面级
质量不对称
变结构鲁棒控制
H∞跟踪性能指标
Multi-payload upper stage
Asymmetry of mass
Variable structure robust control
H∞ tracking performance index