Loss measurement and analysis for the prototype generator with HTS stator and permanent magnet rotor

Peng Song, Timing Qu, Xiaoyu Yu, Longnian Li, Chen Gu, Xiaohang Li, Dewen Wang, Boping Hu, Duxing Chen, Zhenghe Han

    Research output: Contribution to journalArticleResearchpeer-review

    6 Citations (Scopus)

    Abstract

    A prototype HTS synchronous generator with a permanent magnet rotor and HTS armature windings was developed. The rated armature frequency is 10 Hz. The cryogenic Dewar is tightly surrounded outside the iron core. Both HTS coils and the iron core were cooled by using conduction cooling method. During the process of no-load running, the no-load loss power data were obtained through the torque measurement. The temperature evolution characteristics of the stator was measured by PT-100 temperature sensors. These results show that the no-load loss power at around 77 K are much larger than that at room temperature. The possible reason for the no-load loss increment is discussed. The ac loss power of one individual HTS coil used in this generator was also tested. Compared with the iron loss power, the ac loss power is rather small and could be neglected. © 2013 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)225-229
    JournalPhysica C: Superconductivity and its Applications
    Volume494
    DOIs
    Publication statusPublished - 21 May 2013

    Keywords

    • Ac loss
    • Conduction cooling
    • HTS armature windings
    • HTS generator
    • Iron loss
    • No load loss

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