MULTI-OBJECTIVE OUTPUT-FEEDBACK CONTROL FOR SATELLITE FORMATION KEEPING: AN LMI APPROACH
Robust output-feedback controller against various perturbations is proposed for satellite formation keeping. The mixed H2/H∞ controller with regional pole placement constraints is designed based on linear Hills equations. The mixed H2/H∞ controller takes into account both the disturbance rejection aspects and the LQG aspects. In addition, the closed-loop poles can be forced into some sector of the stable half-plane to obtain well-damped transient responses. The problem is reduced to a convex optimization involving linear matrix inequalities (LMIs), so it can be solved efficiently. Extensive simulation studies were conducted for the validation of the proposed robust controller using MatlabTM. The simulation results demonstrate that the developed multi-objective control system is robust stable and optimal in the sense of H2 norm, and has good steady-state and dynamic performances against various disturbances for the satellite formation system.
Satellite formation Formation keeping Multi-objective control Mixed H2/H∞ controller LMIs
BAO-LIN WU DONG-LEI HE XI-BIN CAO
Research Center of Satellite Technology, Harbin Institute of Technology, Harbin, 150080, China
国际会议
2006 International Conference on Machine Learning and Cybernetics(IEEE第五届机器学习与控制论坛)
大连
英文
528-533
2006-08-13（万方平台首次上网日期，不代表论文的发表时间）