In this article, a novel predictive torque and stator flux control (PTSF) method is proposed for N-segment three-phase permanent magnet synchronous motor (N*3-phase PMSM), which can effectively eliminate the influence of parameter mismatch on stator flux and torque. The proposed PTSF method has two loops, stator flux loop and torque loop, both implemented with robust predictive control algorithm. First, the stator flux predictive controller with parameter robustness is designed, and the sensitivity of its parameters is analyzed. In the dq stator flux space, the robust stator flux predictive control with one-step delay compensation is then proposed, which can effectively enhance robustness against parameters mismatch. Moreover, the robust torque predictive control based on unknown torque disturbance observer is developed, which can effectively strengthen the robustness against the load torque disturbance and parameter mismatch. Finally, the validity and feasibility of the proposed PTSF method are verified by simulation and experiment. Excellent simulation and experimental results were achieved with respect to the stator flux tracking error, torque /flux ripple reduction, and stator current distortion over conventional predictive torque control.

中文翻译：

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具有参数稳健性改进的 N*3 相 PMSM 驱动器的预测转矩和定子磁通控制

本文针对N段三相永磁同步电机（N*3相永磁同步电机）提出了一种新的预测转矩和定子磁链控制（PTSF）方法，可以有效消除参数失配对定子磁链的影响。和扭矩。所提出的 PTSF 方法有两个回路，定子磁通回路和转矩回路，两者都用稳健的预测控制算法实现。首先，设计了具有参数鲁棒性的定子磁链预测控制器，并分析了其参数的敏感性。在dq定子磁链空间中，提出了具有一步延迟补偿的鲁棒定子磁链预测控制，可以有效增强对参数失配的鲁棒性。此外，还开发了基于未知转矩扰动观测器的鲁棒转矩预测控制，可有效增强对负载转矩扰动和参数失配的鲁棒性。最后，通过仿真和实验验证了所提出的PTSF方法的有效性和可行性。与传统的预测转矩控制相比，在定子磁通跟踪误差、转矩/磁通脉动减少和定子电流失真方面取得了出色的模拟和实验结果。