Jędryczka Cezary, Danielczyk Dawid, Szeląg Wojciech
Institute of Electrical Engineering and Electronics, Poznan University of Technology, 60-965 Poznan, Poland.
Sensors (Basel). 2020 Apr 23;20(8):2406. doi: 10.3390/s20082406.
This paper deals with the torque ripple minimization method based on the modulation of the phase currents of the permanent-magnet synchronous motor (PMSM) drive. The shape of the supply current waveforms reducing the torque ripple of the machine considered was determined on the basis of finite element analysis (FEA). In the proposed approach, the machine is supplied by a six-leg inverter in order to allow for the injection of zero sequence current harmonics. Two test PMSMs with fractional-slot concentrated windings (FSCW) and surface-mounted permanent magnets (SPMs) have been examined as a case study problem. Wide-range fractional analyses were performed using developed numerical models of the electromagnetic field distribution in the considered machines. The results obtained show that the level of torque ripple in FSCW PMSMs can be effectively reduced by the modulation of the phase currents under the six-leg inverter supply.
本文研究基于永磁同步电机（PMSM）驱动器相电流调制的转矩脉动最小化方法。基于有限元分析（FEA）确定了能够降低所考虑电机转矩脉动的电源电流波形形状。在所提出的方法中，电机由六桥臂逆变器供电，以便注入零序电流谐波。作为一个案例研究问题，研究了两台采用分数槽集中绕组（FSCW）和表面安装式永磁体（SPM）的测试PMSM。使用所开发的考虑电机中电磁场分布的数值模型进行了大范围的分数分析。所得结果表明，在六桥臂逆变器供电下，通过相电流调制可有效降低FSCW PMSM中的转矩脉动水平。
