摘要
空间电磁编队具有不消耗推进剂、无羽流污染、连续可逆和同步控制等优势,静态电磁编队在光学干涉成像等领域具有广阔应用前景。动力学平衡态的稳定性与控制是实现静态电磁编队的基础。论文针对双星电磁编队沿径向、切向和法向分布的三种平衡态构形,利用Kane方法建立了6-DOF耦合非线性动力学模型,分析了三种平衡态构形的开环稳定性、耦合特性与控制需求,最后设计LQR控制器,实现了平衡态构形的稳定控制,并进行了仿真验证。
Space electromagnetic formation is characterized mainly by advantages of no propellant consumption,no plume contaminations,continuous reversible and synchronous controllability,and static electromagnetic formation has a broad prospect of application in such fields as optical interferometry.The stability and control issues of dynamics equilibrium are the foundation for static electromagnetic formation.This research focused on the three equilibriums of two-spacecraft aligned with radial,along-track and normal direction,developed the 6-DOF coupled nonlinear dynamic models by the Kane method,and analyzed the open-loop stability,the coupled characteristics and the control requirements for each equilibrium respectively.Finally,an LQR feedback controller was designed and verified to stabilize the equilibriums.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2013年第3期12-17,共6页
Journal of National University of Defense Technology
基金
国家自然科学基金资助项目(11172322)
关键词
电磁力
静态编队
平衡态
稳定性分析
LQR
electromagnetic force
static formation
equilibrium
stability analysis
LQR
