volume | PIER Journals

Abstract

To address the issues of weak disturbance-rejection capability and poor parameter robustness in traditional model predictive control, a deadbeat model predictive current-control strategy with an improved disturbance observer is proposed. First, an active disturbance rejec-tion controller is designed to replace the PI control, achieving both fast response and overshoot-free per-formance during speed tracking. Then, the influence of parameter disturbances on motor control performance in conventional model predictive control is analyzed, and a disturbance observer with adaptively adjustable gain is designed. The parameter mismatch disturbances can be compensated. Therefore, the current ripple can be significantly suppressed，and the robustness of the system parameters can be enhanced. Finally, the performance of the proposed method was demonstrated through simulations and experiments.

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Dr. Qing Lu

Mr. Linfeng Lv

Dr. Wan Chen

Dr. Tao Zhang