Uncertainty-based position-constrained tracking control of spacecraft solar sail drive motors

Aiming at the problems of modeling error, nonlinearity and parameter uncertainty of solar sail drive motor in spacecraft, a robust control mechanism with new characteristics was proposed to optimize the trajectory tracking performance of permanent magnet synchronous motor system. Udwadia-Kalaba theory is used to deal with modeling errors, fuzzy set theory is employed for handling imprecision and ambiguity in various contexts. The theoretical feasibility of the controller is verified by Lyapunov method, and the superiority of the controller is verified by comparing the traditional PI algorithm with the error-free controller.