AC loss characterization of HTS pancake and solenoid coils carrying nonsinusoidal currents

Yazdani Asrami, Mohammad and Song, Wenjuan and Pei, Xiaoze and Zhang, Min and Yuan, Weijia (2020) AC loss characterization of HTS pancake and solenoid coils carrying nonsinusoidal currents. IEEE Transactions on Applied Superconductivity, 30 (5). 5900709. ISSN 1051-8223 (https://doi.org/10.1109/TASC.2020.2971840)

[thumbnail of Yazdani-Asrami-etal-IEEE-TAS-2020-AC-loss-characterization-of-HTS-pancake-and-solenoid]
Preview
 Text. Filename: Yazdani_Asrami_etal_IEEE_TAS_2020_AC_loss_characterization_of_HTS_pancake_and_solenoid.pdf
Accepted Author Manuscript
Download (2MB)| Preview

Abstract

Application of high-temperature superconducting devices become promising in power networks, and transportation, including ship, train, and electric aircraft propulsion systems, with the advantages of light weight, compact size, and high efficiency, compared to conventional devices. In reality, electric networks—either in grid or transportation propulsion system—are polluted with harmonics due to the widespread use of power electronic devices and nonlinear loads. It is essential to explore the dependency of harmonic ac losses of different coil configurations carrying nonsinusoidal current. We modeled and compared harmonic ac loss behaviors in three coil configurations, single pancake coil (SPC), double pancake coil (DPC), and solenoid coil (SNC), where SPC and SNC are wound by identical wire length and DPC has twice conductor number compared to SPC. The research work has been carried out by means of H-formulation finite element method in a 2-D axisymmetric modeling environment of COMSOL Multiphysics. We explored and reported ac losses in these three coil structures carrying nonsinusoidal current with the third and the fifth harmonic orders, respectively, under different total harmonic distortion (THD) and fundamental current levels. It has been concluded that ac loss in these coils first decreases with the increase of the third harmonic content, when THD of the third harmonic <0.2; and increase with the increase of the third harmonic when THD >0.2. AC loss in coils monotonically increases with the increase of the fifth harmonic, drastically. We found that ac loss in SPC carrying the third harmonic and the fifth harmonic at different THD are more than 3.8 times of that in DPC; ac loss in SPC carrying either third or fifth harmonics at different THD are around 4.5 times of that in SNC.

ORCID iDs

Yazdani Asrami, Mohammad ORCID logoORCID: https://orcid.org/0000-0002-7691-3485, Song, Wenjuan, Pei, Xiaoze, Zhang, Min ORCID logoORCID: https://orcid.org/0000-0003-4296-7730 and Yuan, Weijia ORCID logoORCID: https://orcid.org/0000-0002-7953-4704;
  • Item type:Article
    ID code:71704
    Dates:
    Date
    Event
    31 August 2020
    Published
    5 February 2020
    Published Online
    31 January 2020
    Accepted
    Notes:© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:05 Mar 2020 16:45
    Last modified:11 Nov 2024 12:37
    URI:https://strathprints.strath.ac.uk/id/eprint/71704
CORE (COnnecting REpositories)