Rapid Eddy Current Braking of Space Tumbling Target Based on Model Predictive Control

Due to the increasing risk of space tumbling targets for spacecraft and astronauts, de-tumbling technology of spacecraft become more and more important and various de-tumbling methods have been proposed. This paper mainly studies the fast and safe de-tumbling of space tumbling target. Considering that the required time of de-tumbling via previous methods is too long, this paper first takes the maximum de-tumbling torque as the objective function and solves the optimal trajectory in real time. Then, the MPC algorithm is used to track the trajectory under the constraints of the safe area to ensure a fast and safe de-tumbling. The numerical simulation of large failure satellite verify that the method proposed in this paper is very effective on reducing de-tumbling time. However, it consumes huge control power. The controller will continue to be optimized in the future to reduce the consumption of control power while ensuring rapid de-tumbling.