Title :
Research on torque allocation for multi-reaction wheels system
Author :
Zhang Zhongzheng ; Li Dongbai ; Sun Zhaowei
Author_Institution :
Res. Center of Satellite Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
This article deals with torque allocation for multi-reaction wheel in spacecraft. First of all, an energy-based optimal allocation strategy is derived under the constraints of reaction wheel maximum output torque. Secondly, to address the shortened life time problem which results from too large torque output of some specific reaction wheel in energy-based optimal allocation strategy, the concept of output margin is proposed, and a multi-objective optimal model is put forward. Then, based on weighted coefficients theory an energy-output-margin-based optimal allocation strategy is developed, which can flexibly and effectively solved torque allocation in engineering. Finally, eight skewed reaction wheel system numerical simulation results show the effectiveness of the proposed strategy.
Keywords :
aerospace components; numerical analysis; optimisation; space vehicles; torque; wheels; energy-output-margin-based optimal allocation strategy; multiobjective optimal model; multireaction wheels system; numerical simulation; output margin; reaction wheel maximum output torque constraints; shortened life time problem; skewed reaction wheel system; spacecraft; torque allocation; torque output; weighted coefficients theory; Actuators; Energy consumption; Optimization; Resource management; Space vehicles; Torque; Wheels; Energy optimal; Multi-objective optimal; Reaction wheel; Torque allocation; output margin;
Conference_Titel :
Mechatronics and Control (ICMC), 2014 International Conference on
Print_ISBN :
978-1-4799-2537-7
DOI :
10.1109/ICMC.2014.7231783
