Nonlinear Predictive Attitude Control of Spacecraft Under External Disturbances

摘要

An extension of the predictive control approach has been made by explicitly including external disturbance with attitude representation by MRP. The control law design reflects the worst-case disturbance input in the sense of the minimax game problem. Desired tracking performance is achieved by the proposed control law. The worst-case disturbance information is used to estimate the actual disturbance by using an adaptive weighting parameter selection strategy. The new predictive control approach was found to be applicable to the spacecraft attitude maneuver control under external disturbance and achieved the desired performance.