Satellite Attitude Control Using Three Reaction （卫星姿态控制使用三个反应）.pdfVIP

2008 American Control Conference FrB16.4 Westin Seattle Hotel, Seattle, Washington, USA June 11-13, 2008 Satellite attitude control using three reaction wheels Shahin S. Nudehi, Umar Farooq*, Aria Alasty and Jimmy Issa Abstract— This work addresses the attitude control of a on satellite in general are not thoroughly known and the satellite by applying MIMO quantitative feedback approach. derived equations may include uncertainties (either modeled The objective is to design a set of proper controllers in presence or un-modeled), thus making the satellite attitude control of unknown disturbances and parametric uncertainties for a nonlinear MIMO system. The physical model of satellite utilizes arduous. In these circumstances, robust control theory offers three reaction wheels as actuators. The controller goal is to an attractive solution for control design. change the rotational speed of reaction wheels to adjust the To robustly control nonlinear and uncertain systems, quan- satellite in desired course. First, the mathematical model of titative feedback control theory (QFT) has emerged as an satellite and its actuators using angular kinematics and kinetic effective synthesis tool with advantages over other control equations is developed. Quantitative feedback theory is then applied to synthesize a set of linear controllers that deals with schemes [15-18] and thus provides a basis for solving the both nonlinearities in the equations and unknown parameters current problem. This work addresses the attitude control of or disturbance sources. By using basically