In this paper, a novel control method based on model predictive control (MPC) and torque sharing function (TSF) is addressed to minimize the torque ripple of switched reluctance motor (SRM). Firstly, an accurate SRM model is established based on flux-linkage characteristic curves obtained from the locked rotor test, which can predict the future operation state of the SRM drive system. Secondly, an improved TSF curve is proposed, and genetic algorithm is used to optimize TSF parameters to reduce torque ripple in commutation region. Besides, the MPC is integrated into the TSF control framework to replace the traditional hysteresis controller, and establishes a new TSF-based model predicted torque control (MPTC) method, which avoids the frequency conversion problem caused by torque or current hysteresis controller. Further, a sector division scheme is addressed to decrease the number of candidate voltage states, whereby the computation of the controller in each sampling period is effectively reduced. Finally, in order to verify the correctness of the MPTC method, it is compared with the traditional direct instantaneous torque control (DITC). Both simulations and experiments on a three-phase 12/8 pole SRM have confirmed that MPTC scheme can not only decreases torque ripple and stator copper losses, but also has higher efficiency than DITC. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

中文翻译：

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基于MPC和TSF的开关磁阻电机转矩脉动最小化

在本文中，提出了一种基于模型预测控制 (MPC) 和扭矩共享功能 (TSF) 的新型控制方法，以最小化开关磁阻电机 (SRM) 的扭矩纹波。首先，基于转子堵转试验获得的磁链特性曲线建立准确的SRM模型，可以预测SRM驱动系统未来的运行状态。其次，提出了改进的TSF曲线，并利用遗传算法优化TSF参数以减少换向区转矩脉动。此外，将MPC集成到TSF控制框架中，取代传统的滞后控制器，建立了一种新的基于TSF的模型预测转矩控制(MPTC)方法，避免了转矩或电流滞后控制器引起的变频问题。更远，提出了扇区划分方案，以减少候选电压状态的数量，从而有效减少控制器在每个采样周期的计算量。最后，为了验证MPTC方法的正确性，将其与传统的直接瞬时转矩控制（DITC）进行了比较。对三相 12/8 极 SRM 的仿真和实验均证实 MPTC 方案不仅可以降低转矩脉动和定子铜损，而且比 DITC 具有更高的效率。© 2021 日本电气工程师学会。由 Wiley Periodicals LLC 出版。与传统的直接瞬时转矩控制（DITC）相比。对三相 12/8 极 SRM 的仿真和实验均证实 MPTC 方案不仅可以降低转矩脉动和定子铜损，而且比 DITC 具有更高的效率。© 2021 日本电气工程师学会。由 Wiley Periodicals LLC 出版。与传统的直接瞬时转矩控制（DITC）相比。对三相 12/8 极 SRM 的仿真和实验均证实 MPTC 方案不仅可以降低转矩脉动和定子铜损，而且比 DITC 具有更高的效率。© 2021 日本电气工程师学会。由 Wiley Periodicals LLC 出版。