Induction Motor Supplied with Voltage Containing Symmetrical Subharmonics and Interharmonics

Piotr Gnaciński (), Damian Hallmann, Adam Muc, Piotr Klimczak and Marcin Pepliński
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Piotr Gnaciński: Department of Ship Electrical Power Engineering, Gdynia Maritime University, 83 Morska St., 81-225 Gdynia, Poland
Damian Hallmann: Department of Ship Electrical Power Engineering, Gdynia Maritime University, 83 Morska St., 81-225 Gdynia, Poland
Adam Muc: Department of Ship Automation, Gdynia Maritime University, 83 Morska St., 81-225 Gdynia, Poland
Piotr Klimczak: Diagnostic and Service of Electric Motors Department, Zakład Maszyn Elektrycznych EMIT Cantoni Group, 72 Narutowicza St., 99-320 Żychlin, Poland
Marcin Pepliński: Department of Ship Electrical Power Engineering, Gdynia Maritime University, 83 Morska St., 81-225 Gdynia, Poland

Energies, 2022, vol. 15, issue 20, 1-24

Abstract: Sinusoidal voltage fluctuations can be considered a specific result of the occurrence of voltage subharmonics and interharmonics, which are components of low frequency or not being an integer multiple of the frequency of the fundamental voltage harmonic. These components—symmetrical subharmonics and interharmonics—are of the same magnitude, while their frequencies are symmetrical with respect to the fundamental frequency. Depending on their phase angles, various kinds of voltage fluctuations can be distinguished: amplitude modulation, phase modulation and intermediate modulation. In this study, the effect of phase angles on noxious phenomena in induction motors was analyzed. Additionally, torque pulsations and vibrations of an induction motor under sinusoidal voltage fluctuation and a single voltage subharmonic or interharmonic were compared. The investigations were performed with the finite element method and an experimental method. Among other findings, it was found that for some phase angles torque pulsations could be about ten times higher than for other angles, roughly corresponding to the amplitude modulation.

Keywords: AC motors; harmonic distortion; induction motors; vibrations; voltage fluctuations (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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