Operation of an induction motor supplied by voltage with interharmonics
DOI:
https://doi.org/10.5604/01.3001.0012.1305Keywords:
induction machine, interharmonics, speed variations, resonanceAbstract
The paper discusses the effects of interharmonics, i.e. frequencies higher than the fundamental frequency, not being its total multiplicity, in the voltage supplying the induction motor. The emergence of interharmonics in a three-phase grid is mainly the result of the swinging of peak mains voltages. In induction machines, this results in the occurrence of currents with interharmonic and subharmonic frequencies, the generation of alternating moments, the swinging of the rotor speed and the change in the RMS value of the current of the fundamental frequency. The paper explores these phenomena simulation, taking into account the skin effect of currents in the rotor cage. The research was carried out both for interharmonics with a positive sequence of phases as well as for the negative sequence.
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References
Drabek T, Praca silnika indukcyjnego zasilonego napięciem zawierającym subharmoniczne, Science, Technology and Innovation, 2017, 1, 27–34. Google Scholar
Hanzelka Z, Jakość dostawy energii elektrycznej, Wydawnictwa AGH 2013, Kraków, Poland. Google Scholar
Ghaseminezhad M, Doroudi A, Hosseinian SH, A Novel Equivalent Circuit for Induction Motors under Voltage Fluctuation Conditions, Electrical & Electronics Engineering, 2012, 44, 53–61. Google Scholar
Tennakoon S, Perera S, Robinson D, Flicker attenuation – Part I: Response of three phase induction motors to regular voltage fluctuations, IEEE Transactions on Power Delivery, 2008, 23, 1207–1214. Google Scholar
Gnaciński P, Pepliński M, Szweda M, Wpływ wahań napięcia na obciążenie cieplne silnika indukcyjnego, Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej, Nr 66, Studia i materiały, Nr 32, 288–293. Google Scholar
Frank S, Lee K, Sen PK, Polese LG, Alahmad M, Waters C, Reevaluation of Induction Motor Loss Models for Conventional and Harmonic Power Flow, North American Power Symposium (NAPS), 2012, 9-11 September 2012. Google Scholar
Skwarczyński J, Tertil Z, Maszyny Elektryczne, skrypt AGH, Wydawnictwa AGH, 1990, Kraków. Google Scholar
Gnaciński P, Pepliński M, Szweda M, Wpływ subharmonicznych i interharmonicznych napięcia na prądy w uzwojeniach silnika indukcyjnego, Zeszyty Problemowe – Maszyny Elektryczne, Nr 92/2011, wyd. INiME Komel, 67–71. Google Scholar
Policarpo J, de Abreu G, Emanuel AE, Induction Motor Thermal Aging Caused by Voltage Distortion and Imbalance: Loss of Useful Life and Its Estimated Cost, IEEE Transactions on Industry Applications, 2002, 38, 12–20. Google Scholar
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