Multisector Three-Phase PMSM Drive System With Low-Frequency and High-Frequency PWM Noise

• Published in: IEEE journal of emerging and selected topics in power electronics Vol. 10; no. 2; pp. 1639 - 1648
• Main Authors: Xu, Yongxiang, Zhang, Wentao, Huang, Yingliang, Zou, Jibin
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.04.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adaptive algorithms; Carrier phase shift; coupled inductors; Harmonic analysis; harmonic reduction; Inductors; Inverters; multisector three-phase permanent magnet synchronous motor (PMSM); Noise; paralleled voltage source inverters (VSIs); Permanent magnets; Power harmonic filters; Pulse duration modulation; Pulse width modulation; Synchronous motors; Topology; Windings
• ISSN: 2168-6777; 2168-6785
• DOI: 10.1109/JESTPE.2021.3059280

Multisector three-phase permanent magnet synchronous motors (PMSMs) possess better performance against traditional motors. With the application of pulsewidth modulation (PWM) and consideration of switching losses, ear-piercing high-frequency noise from the motors has become unacceptable in sensitive environments. A drive topology covering <inline-formula> <tex-math notation="LaTeX">K </tex-math></inline-formula> paralleled inverters with special open-winding magnetically coupled inductors is presented to feed the multisector motor. In this article, a comprehensive suppression strategy with low-frequency compensation based on an adaptive-linear-neuron algorithm is proposed to eliminate the PWM noise around odd carrier multiples, and reduce the harmonics near even carrier multiples under 2K multiple through the impedance of the coupled inductors. Apart from the analysis of the elimination principle and advantages of the drive system, the simulation verification is also conducted. Finally, the detailed experimental results have verified the effectiveness of the proposed strategy in a two-sector three-phase PMSM drive system.