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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2017, Vol. 38 ›› Issue (10): 321129-321129.doi: 10.7527/S1000-6893.2017.321129

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Fault-tolerant translational control for spacecraft formation flying with collision avoidance requirement

MA Guangfu1, DONG Hongyang1, HU Qinglei2   

  1. 1. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China;
    2. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100083, China
  • Received:2017-01-13 Revised:2017-04-17 Online:2017-10-15 Published:2017-04-17
  • Supported by:

    National Natural Science Foundation of China (61522301, 61633003)

Abstract:

To solve the flying safety issues of spacecraft formation,including fault tolerance and obstacle/collision avoidance,a novel adaptive translational control method is proposed.Specifically,the proposed method combines the core ideas of artificial potential function guidance and sliding mode control method.A special artificial potential function is designed to encode the collision/obstacle avoidance requirement,and then a coordination controller is presented to enable the spacecraft formation to maintain the predetermined configuration while tracking a target,and to be able to avoid all possible collisions between members in formation or with respect to a non-cooperative obstacle.Furthermore,by introducing adaptive laws into the controller,the robustness of the closed-loop system is further improved in respect to external disturbances,parameter uncertainties and even severe actuator faults.Typical simulations are performed to illustrate the effectiveness of the proposed method.

Key words: spacecraft formation flying control, fault-tolerant control, artificial potential function guidance, obstacle avoidance, collision avoidance

CLC Number: