Abstract
Attitude of satellites can be controlled by using two reaction wheels. Since the dynamic constraint of attitude of a satellite with two wheels is non-holonimic, a maneuver path gives a lot of influence on attitude. In many cases, there exist prohibited directions that satellites must not point to due to the constraints of optical sensors directions etc. In these cases, the maneuver path planning and the feedback control are essential for the attitude maneuver using two reaction wheels. This paper proposes an control scheme for satellites considering maneuver path bu using two reaction wheels. In the proposed scheme, attitude of a satellite is projected on a unit spherical surface and a maneuver path is planned on the spherical surface. A feedback controller is designed using an area between a planned path and an actual path. The validity and effectiveness of the proposed method are shown by simulation results.
