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Optimal control of the rotating velocity of hub-spoke tethered space robot formation

HUANG Pan-feng1,2, ZHANG Fan1,2, LIU Bin-bin1,2, MA Jun1,2   

  1. 1. Research Center of Intelligent Robotics, School of Astronautics, Northwestern Polytechnical
    University, Xi’an 710072, China; 2. National Key Laboratory of Aerospace Flight
    Dynamics, Northwestern Polytechnical University, Xi’an 710072, China
  • Online:2015-05-25 Published:2010-01-03

Abstract:

The hub-spoke tethered space robot (TSR) formation is a novel formation system. The stability, flexibility and fuel consumption of the hub-spoke TSR formation system have been significantly improved. The optimal control problem of the rotating velocity of the hub-spoke TSR formation system is proposed and studied. Firstly, an analytical model is used to describe the rotating hub-spoke TSR formation system. Secondly, the optimal control problem of the rotating velocity and the theory of the hp-adaptive pseudospectral method are described. Thirdly, a closed-loop optimal control system based on the hp-adaptive pseudospectral method is established. Finally, some digital imitations are implemented to validate the proposed closed-loop optimal control system.

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