Severe torque ripple and determination of the weighting factor pose significant challenges in traditional predictive torque control. A deadbeat predictive torque control scheme designed to minimize torque ripple for dual three-phase permanent magnet synchronous motors is proposed in this paper, eliminating the need for a cost function. Additionally, a novel method for calculating action time based on geometric principles is proposed. First, the deadbeat direct torque and flux control is employed to obtain the reference voltage vector. To reduce the computational burden, the nearest virtual voltage vector is selected directly without a cost function. Subsequently, the torque ripple is further reduced by calculating the corresponding action time based on the introduced geometric relationship in the volt-sec coordinate system. Finally, experimental results demonstrate the effectiveness of the torque ripple reduction method under different working conditions.

严重的扭矩脉动和权重因子的确定对传统的预测扭矩控制提出了重大挑战。本文提出了一种无差拍预测扭矩控制方案，旨在最大限度地减少双三相永磁同步电机的扭矩脉动，从而无需成本函数。此外，还提出了一种基于几何原理计算动作时间的新方法。首先，采用无差拍直接转矩和磁通控制来获得参考电压矢量。为了减少计算负担，直接选择最接近的虚拟电压矢量，而不需要成本函数。随后，根据引入的伏秒坐标系中的几何关系计算相应的作用时间，进一步减小扭矩脉动。最后，实验结果证明了不同工况下扭矩脉动降低方法的有效性。