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Title: Calculation of AC Magnetizing Loss of ReBCO Superconducting Tapes Subjected to Applied Distorted Magnetic Fields

Abstract

In recent years, there are fast-increasing concerns on the utilizations of superconducting rotating electrical machines in different application areas, such as ship propulsion systems, aircraft drivers, and wind turbine generators, since these machines exhibit the merits of high current density, compact design, high power density, light weight, high torque density as well as high efficiency. One of the main limitations in front of the vast use of superconducting tapes in the fabrication of electrical machineries is AC magnetizing loss when tapes are exposed to an external magnetic field, which can decrease the critical current density of wires, as well. In the literature, most of the research works have been done on calculation of the AC magnetizing loss under a pure external magnetic field, while in reality, magnetic flux lines in AC electrical machines are usually distorted with harmonics because of different reasons such as distorted leakage flux, distributed coils of a winding in several slots, cogging fields, mechanical faults, etc. Since these distorted fields contain harmonics, then in this paper, the AC magnetizing loss of superconducting tapes has been electromagnetically modeled and calculated when they are subjected to nonsinusoidally distorted external magnetic fields. The magnetic field dependency of critical currentmore » density has been considered in a proposed finite element model. The results have shown that the AC magnetizing loss increases significantly under a distorted applied field compared with a sinusoidal one. In addition, the loss increase depends on the harmonic content which would increases drastically with total harmonic distortion of the applied magnetic field.« less

Authors:
; ;  [1]
  1. Babol Noshirvani University of Technology, Department of Electrical and Computer Engineering (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22773591
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 12; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AIRCRAFT; CRITICAL CURRENT; CURRENT DENSITY; DENSITY; FABRICATION; FINITE ELEMENT METHOD; HARMONICS; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETIZATION; POWER DENSITY; PROPULSION SYSTEMS; SUPERCONDUCTORS; TORQUE; WIND TURBINES

Citation Formats

Yazdani-Asrami, Mohammad, Gholamian, S. Asghar, E-mail: Gholamian@nit.ac.ir, Mirimani, Seyyed Mehdi, and Adabi, Jafar. Calculation of AC Magnetizing Loss of ReBCO Superconducting Tapes Subjected to Applied Distorted Magnetic Fields. United States: N. p., 2018. Web. doi:10.1007/S10948-018-4695-7.
Yazdani-Asrami, Mohammad, Gholamian, S. Asghar, E-mail: Gholamian@nit.ac.ir, Mirimani, Seyyed Mehdi, & Adabi, Jafar. Calculation of AC Magnetizing Loss of ReBCO Superconducting Tapes Subjected to Applied Distorted Magnetic Fields. United States. https://doi.org/10.1007/S10948-018-4695-7
Yazdani-Asrami, Mohammad, Gholamian, S. Asghar, E-mail: Gholamian@nit.ac.ir, Mirimani, Seyyed Mehdi, and Adabi, Jafar. 2018. "Calculation of AC Magnetizing Loss of ReBCO Superconducting Tapes Subjected to Applied Distorted Magnetic Fields". United States. https://doi.org/10.1007/S10948-018-4695-7.
@article{osti_22773591,
title = {Calculation of AC Magnetizing Loss of ReBCO Superconducting Tapes Subjected to Applied Distorted Magnetic Fields},
author = {Yazdani-Asrami, Mohammad and Gholamian, S. Asghar, E-mail: Gholamian@nit.ac.ir and Mirimani, Seyyed Mehdi and Adabi, Jafar},
abstractNote = {In recent years, there are fast-increasing concerns on the utilizations of superconducting rotating electrical machines in different application areas, such as ship propulsion systems, aircraft drivers, and wind turbine generators, since these machines exhibit the merits of high current density, compact design, high power density, light weight, high torque density as well as high efficiency. One of the main limitations in front of the vast use of superconducting tapes in the fabrication of electrical machineries is AC magnetizing loss when tapes are exposed to an external magnetic field, which can decrease the critical current density of wires, as well. In the literature, most of the research works have been done on calculation of the AC magnetizing loss under a pure external magnetic field, while in reality, magnetic flux lines in AC electrical machines are usually distorted with harmonics because of different reasons such as distorted leakage flux, distributed coils of a winding in several slots, cogging fields, mechanical faults, etc. Since these distorted fields contain harmonics, then in this paper, the AC magnetizing loss of superconducting tapes has been electromagnetically modeled and calculated when they are subjected to nonsinusoidally distorted external magnetic fields. The magnetic field dependency of critical current density has been considered in a proposed finite element model. The results have shown that the AC magnetizing loss increases significantly under a distorted applied field compared with a sinusoidal one. In addition, the loss increase depends on the harmonic content which would increases drastically with total harmonic distortion of the applied magnetic field.},
doi = {10.1007/S10948-018-4695-7},
url = {https://www.osti.gov/biblio/22773591}, journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 12,
volume = 31,
place = {United States},
year = {Sat Dec 15 00:00:00 EST 2018},
month = {Sat Dec 15 00:00:00 EST 2018}
}