Direct thrust allocation algorithm based on optimal feasible cone

A direct thrust allocation algorithm based on the searching of the optimal feasible cone is proposed to reduce the online computation load. The algorithm first concentrates on finding an optimal feasible cone for the unconstrained allocation problem. Then, constraints are taken into account to select out the target thruster and compute the corresponding control contribution. Control error is thus obtained for next cycle until being eliminated. An Illustrative example based on the core module of space station is provided to verify the effectiveness and correctness of the proposed method as well as to demonstrate its advantage in computational requirement and adaptiveness to thruster failure.