The Mechanism for Suppressing High-Frequency Vibration of Multiphase Surface Permanent Magnet Motors via PWM Carrier Phase Shifting
| Autor: | Sun Wen, Yajun Lv, Siwei Cheng, Xinghong Li, Zhongkun Ji, Dong Wang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Stator 020208 electrical & electronic engineering 02 engineering and technology law.invention Harmonic analysis Vibration Control theory law Electromagnetic coil Modulation Harmonics Magnet 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Pulse-width modulation |
| Zdroj: | IEEE Transactions on Power Electronics. 36:10504-10513 |
| ISSN: | 1941-0107 0885-8993 |
| DOI: | 10.1109/tpel.2021.3064184 |
| Popis: | Switching-frequency vibration caused by pulsewidth modulation (PWM) is a critical shortcoming of permanent magnet synchronous motor (PMSM) drives in certain applications. This article reveals the mechanism for suppressing high-frequency vibration of multiphase surface permanent magnet (SPM) motors via PWM carrier phase shifting (CPS). The article first introduces a 12-phase SPM drive with three different modes of CPS. Then, it presents an analytical method to calculate high-frequency current harmonics as well as flux and force distributions along stator boundaries. By analyzing the calculated current harmonics and flux distributions under different CPS modes and parameters, the article discovers that CPS greatly alters the spatial distribution of high-frequency stator electromagnetic forces and, thus, significantly changes their zero-order components, which are the major contributors to high-frequency motor vibrations. Finally, the optimal CPS mode and parameter are determined analytically and are validated by experimental results. |
| Databáze: | OpenAIRE |
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