Effect of Pulsewidth Modulation on Electromagnetic Noise of Interior Permanent Magnet Synchronous Motor Drives
| Autor: | Issah Ibrahim, David A. Lowther, Mohammad Hossain Mohammadi, Vahid Ghorbanian |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Electric motor Computer science Acoustics 01 natural sciences Electronic Optical and Magnetic Materials Harmonic analysis Noise Quality (physics) Sampling (signal processing) Modulation 0103 physical sciences Electrical and Electronic Engineering Sound pressure Electromagnetic noise Excitation Pulse-width modulation |
| Zdroj: | IEEE Transactions on Magnetics. 55:1-5 |
| ISSN: | 1941-0069 0018-9464 |
| DOI: | 10.1109/tmag.2019.2920107 |
| Popis: | This paper investigates acoustic noise when an electric motor is fed with three-phase pulsewidth-modulated (PWM) currents with varying modulation indices. The procedure involves using a data-driven process to create a design space for different geometries of an interior permanent magnet synchronous motor. The motor structures are then analyzed using a finite-element analysis package to extract knowledge related to the sound pressure levels from the PWM excitation. It is demonstrated that sampling the air-gap space at a single time instant, which is a routine procedure in acoustic noise calculations, can result in an inaccurate estimation of the sound pressure levels, especially when the noise source is PWM motivated. Multiple-time sampling over the electrical period is proposed as a better approach for analyzing the sound pressure levels, irrespective of the type of supply current quality. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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