Journal of Astronautics ›› 2015, Vol. 36 ›› Issue (8): 869-876.doi: 10.3873/j.issn.1000-1328.2015.08.002

Previous Articles     Next Articles

A Method for Hybrid Propulsion Minimum Fuel Trajectory Optimization

ZHANG Chen, ZHAO Yu shan   

  1. School of Astronautics, Beihang University, Beijing 100191, China
  • Received:2014-04-17 Revised:2014-08-12 Online:2015-08-15 Published:2015-08-25


Trajectory optimization with hybrid propulsion system is studied under Earth-Moon circular restricted three-body model. The total fuel consumption of both chemical and electrical propulsion systems is minimized, and based on the calculus of variation, the first-order necessary condition and analytic Jacobian are derived. These methods are applied to Earth-Moon L1 minimum-fuel trajectory optimization, the simulation reveals that this kind of methods afford various combination of flight time and total fuel consumption, thus giving a greater flexibility in the mission design.

Key words: Trajectory optimization, Electric propulsion, Optimal control theory, Three-body problem, Hybrid propulsion

CLC Number: