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http://dx.doi.org/10.5139/JKSAS.2008.36.7.651

Control Allocation of Reaction Wheels for Maximum Torque Generation  

Choi, Yoon-Hyuk (한국과학기술원 항공우주공학과 대학원)
Lee, Hen-Zeh (한국과학기술원 항공우주공학과 대학원)
Bang, Hyo-Choong (한국과학기술원 항공우주공학과 대학원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.7, 2008 , pp. 651-657 More about this Journal
Abstract
A new approach for maximizing torque capability of low efficient reaction wheel assembly is addressed in this paper. At first, to find out a solution in constrainted field, weighted pseudo-inverse and momentum minimized allocation are suggested instead of a general control allocation called pseudo-inverse. The second method is a structural manner to enlarge torque capability of specific axis by changing installed skew angle of wheels. Two proposed methods are applied to large angle maneuvers of satellite. Improvement of control performance and feasibility for applying to commercial satellite attitude control are demonstrated by numeric simulations.
Keywords
Control allocation; Wheel saturation avoidance; Low-cost actuator;
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