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Field-Data-Based Modeling of Medium Frequency Induction Melting Furnaces for Power Quality Studies
Date
2011-10-13
Author
Yilmaz, Ilker
Salor, Ozgul
Ermiş, Muammer
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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In this paper, the coreless, medium frequency induction melting furnace (IMF) system, has been represented by alternative field-data-based models, developed specifically for power quality studies. The IMF operation has been represented by a variable series RL circuit to model the fundamental components of electrical quantities, and a shunt-connected current source, to model the generated harmonics and interharmonics over a typical melting cycle. Both the sinusoidal coding method applied to the major harmonics and interharmonics in the supply line currents obtained from field measurements and also raw data, have been used in the developed models. It has been shown that the sinusoidal coding method can be used to satisfactorily represent the operation of the IMF system as seen from the supply terminals, with a minimum data storage requirement, and can be used to construct efficient IMF databases for power quality studies. The power quality problems of the IMF system, in particular the problematic time-varying interharmonic voltage distortion, and the interaction of those time-varying interharmonic currents with the passive shunt filter installations connected to the same bus have been investigated in detail, using the developed models.
Subject Keywords
Induction melting furnace
,
Power quality
,
Power quality
,
Sinusoidal coding
,
Formant analysis
,
Modeling
URI
https://hdl.handle.net/11511/52916
Collections
Graduate School of Natural and Applied Sciences, Conference / Seminar
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BibTeX
I. Yilmaz, O. Salor, and M. Ermiş, “Field-Data-Based Modeling of Medium Frequency Induction Melting Furnaces for Power Quality Studies,” presented at the Annual Meeting of the IEEE-Industry-Applications-Society (IAS), Orlando, FL, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52916.