Phase plane analysis of the solar array stepping dynamics and alternative slewing strategy

Abstract

Phase plane method of analysis is proposed to derive the correct set of pulse widths and stepping periods for the stepping motion of the solar array in three-axis stabilized satellites. For this torquing strategy, the adverse effect of the array flexibility is also brought out through simulation studies. Alternatively, a new torquing strategy suggested here, is found to slew the array at any desired rate in a smooth manner and the success of slew is insensitive to moment of inertia, torque generated, friction torque and the flexibility parameters.