Ni Sijie, Bauw Grégory, Romary Raphaël, Cassoret Bertrand, Le Besnerais Jean
Laboratoire Systèmes Electrotechniques et Environnement, University of Artois, UR 4025, F-62400 Béthune, France.
Eomys Engineering, F-59260 Lille, France.
Sensors (Basel). 2022 Apr 2;22(7):2738. doi: 10.3390/s22072738.
In this paper, a passive method for the noise reduction of the PMSM (Permanent Magnet Synchronous Machine) is presented. The principle is to add an auxiliary three-phase winding into the same slots as the initial stator winding, short-circuited via three capacitors of suitable values. The aim is to create a damping effect for flux density harmonic components, especially high-frequency harmonics from the PWM (PulseWidth Modulation), in the air gap in order to reduce the noise and vibration of the PMSM. The method can significantly reduce the global sound pressure level and vibrations for specific frequencies. Because of passive features, the additional winding effectively mitigates magnetic noise without greatly increasing the complexity of design and manufacturing, which also extends its applicability to different PMSMs.
本文提出了一种用于永磁同步电机(PMSM)降噪的无源方法。其原理是在与初始定子绕组相同的槽中添加一个辅助三相绕组,并通过三个阻值合适的电容器进行短路。目的是为气隙中的磁通密度谐波分量,特别是来自脉宽调制(PWM)的高频谐波,产生阻尼效应,以降低永磁同步电机的噪声和振动。该方法可显著降低特定频率下的整体声压级和振动。由于具有无源特性,附加绕组有效减轻了磁噪声,而不会大幅增加设计和制造的复杂性,这也扩展了其在不同永磁同步电机上的适用性。