Collision Avoidance Trajectory Planning of Cluster Spacecraft Considering Energy Optimization

Aimed at the matters of that it is a large fuel consumption, imbalance consumption and long time-consuming in the application of conventional cluster aggregation algorithm in cluster spacecraft trajectory planning, an energy optimal clustered collision avoidance algorithm based on centripetal aggregation was proposed. Firstly, based on the equation of Clohessy-Wiltshire of the cluster spacecraft and the model of the finite-time energy optimization, the algorithm established an adaptive centripetal aggregation energy optimization model. On this basis, for the matters of long time-consumed and collision, a clustering collision avoidance algorithm was proposed with optimal energy. The safe distance vector between modular spacecraft was used as the collision avoidance constraint, and the energy consumption was used as the clustering algorithm index. The simulation results show that the clustering algorithm can adaptively select the center of cluster spacecraft and collision-free effectively, reduce the total energy consumption of cluster spacecraft aggregation and the imbalance of energy consumption between modular spacecraft. So that the fluid consumption is globally optimal, and the time consumption is only in ten thousand of the conventional genetic algorithm. This algorithm provides an idea for r spacecraft rapid and safe clustering of cluster.