This paper presents a convex approach to the numerical solution of the minimum-fuel low-thrust orbit transfer problem. The main contribution is the transformation of the original nonlinear optimal control problem into a sequence of convex optimization problems. First, the control is decoupled from the states through a change of variables. Then, by introducing a lossless convexification technique, the control constraints are convexified, and the original problem is relaxed into a sequence of second-order cone programming problems. The resulting subproblems can be solved in real time by efficient interior-point methods. Finally, the effectiveness of the proposed methodology is demonstrated through numerical simulations of the three-dimensional minimum-fuel Earth-to-Mars low-thrust transfer problem.
Minimum-Fuel Low-Thrust Transfers for Spacecraft: A Convex Approach
IEEE Transactions on Aerospace and Electronic Systems ; 54 , 5 ; 2274-2290
01.10.2018
4095827 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Low-thrust, minimum-fuel, orbital transfers
NTRS | 1971
|Minimum-fuel orbital transfers with low-thrust rockets
TIBKAT | 1971
|