A4 Conference proceedings

Active Power Analysis of PWM-driven Induction Motor in Frequency Domain

Publication Details

Authors: Anttila Alex, Aarniovuori Lassi, Niemelä Markku, Zaheer Minhaj, Lindh Pia, Pyrhönen Juha

Publication year: 2021

Language: English

Title of parent publication: 2021 XVIII International Scientific Technical Conference Alternating Current Electric Drives (ACED)

ISBN: 978-1-6654-2945-0

eISBN: 978-1-6654-1248-3

JUFO level of this publication: 1

Digital Object Identifier (DOI): http://dx.doi.org/10.1109/ACED50605.2021.9462308

Open Access: Not an Open Access publication


Pulse-width-modulated (PWM) voltage source inverters (VSI) are a common way to drive induction motors in variable speed applications. As switching hardware improves, motors are driven with increasing switching frequencies, extending the frequency range of PWM harmonics. Discrete Fourier Transform (DFT) can be used to analyze the differences in the active power spectrum as switching frequency is changed. This paper covers the basic methodology on DFT-based analysis of input power measurements. Analysis on the input active power spectrum of a PWM VSI driven 5-kW induction motor is conducted at different switching frequencies.

Last updated on 2021-22-10 at 11:06