Xiangrui Zhang
ABSTRACT
In order to realize the agile pointing of the new type of satellite-borne flexible cable parallel platform, this paper combines with the dynamic model of spacecraft and platform and proposes a force and position integrated control method considering the flexible cable driving unit model. In this paper, the dynamic model of the platform is established firstly, and the minimum 2-norm of the cable tension is used as the index to allocate the redundant tension. Based on the dynamic model of the flexible cable driving unit, this paper designs a PID controller with feedforward terms. Then, the force and position integrated control loop of the whole platform is built with the platform pointing attitude and the flexible cable tension as expectations. Finally, the dynamic equation of the whole satellite with the flexible cable parallel platform is established. This paper designs the integrated control system based on the whole dynamic model, and the agile pointing effect is verified by simulation.
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Index Terms
- Agile Pointing Control Method for a New Type of Satellite-borne Flexible Cable Parallel Platform
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