Model Predictive Current Control for Dual Three-Phase Permanent Magnet Synchronous Motor Based on Active Disturbance Rejection

In order to improve the dynamic performance of dual three-phase permanent magnet synchronous motor (DTP-PMSM) and the problems of large current ripples, an improved model predictive current control (MPCC) method of DTP-PMSM combined with linear active disturbance rejection control (ADRC) is proposed. An improved MPCC strategy for the purpose of reducing voltage vector control error is proposed, based on the largest and second largest voltage vector control sets. The cost function of restraining harmonic plane current is established, and the three-step model predictive current control is carried out. Aiming at the problems of steady-state error and low prediction accuracy caused by motor parameters and external disturbance, the linear ADRC is adopted. The second-order linear extended state observer is introduced to improve the difficult problem of multi parameter tuning of nonlinear extended state observer. Through simulation and experiment of the proposed method for DTP-PMSM, the results verify the effectiveness and feasibility of the method.