Low-Thrust, Multi-Revolution Orbit Transfer under the Constraint of a Switch Function without Prior Information

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  • CUI Pingyuan
    Deep Space Exploration Center, Harbin Institute of Technology
  • REN Yuan
    Deep Space Exploration Center, Harbin Institute of Technology
  • LUAN Enjie
    China National Space Administration

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Abstract

In this paper, a low-thrust, multi-revolution orbit transfer under the constraint of a complex switch function is investigated. First, the effect of the switch function, especially that of a switch function with no prior information, is analyzed. Then, by utilizing the concept of the Lyapunov feedback control law, the semi-analytical expressions of suboptimal thrust angles are derived, and a near-optimal solution could approach the optimal solution by adjusting the five weights in the Lyapunov function using sequential quadratic programming (SQP). In the novel method, except for optimization of the weight factors in the Lyapunov function, no iteration is contained in the process of design and optimization, so the method is rapid and has good convergence. This method also overcomes the drawbacks about convergence of traditional calculus of variation (COV). It is an effective method for the design of low-thrust, multi-revolution orbit transfer with no prior information switch functions.

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