Development and testing of a 2.5 kW synchronous generator with a high temperature superconducting stator and permanent magnet rotor

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

doi:10.1088/0953-2048/27/4/044026

Development and testing of a 2.5 kW synchronous generator with a high temperature superconducting stator and permanent magnet rotor

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

Research output: Contribution to journal › Article › Research › peer-review

39 Citations (Scopus)

Abstract

High temperature superconducting (HTS) armature windings have the potential for increasing the electric loading of a synchronous generator due to their high current transport capacity, which could increase the power density of an HTS rotating machine. In this work, a novel synchronous generator prototype with an HTS stator and permanent magnet rotor has been developed. It has a basic structure of four poles and six slots. The armature winding was constructed from six double-pancake race-track coils with 44 turns each. It was designed to deliver 2.5 kW at 300 rpm. A concentrated winding configuration was proposed, to prevent interference at the ends of adjacent HTS coils. The HTS stator was pressure mounted into a hollow Dewar cooled with liquid nitrogen. The whole stator could be cooled down to around 82 K by conduction cooling. In the preliminary testing, the machine worked properly and could deliver 1.8 kW power when the armature current was 14.4 A. Ic for the HTS coils was found to be suppressed due to the influence of the temperature and the leakage field. © 2014 IOP Publishing Ltd.

Original language	English
Article number	044026
Journal	Superconductor Science and Technology
Volume	27
Issue number	4
DOIs	https://doi.org/10.1088/0953-2048/27/4/044026
Publication status	Published - 1 Jan 2014

Keywords

conduction cooling
HTS armature winding
HTS generator
permanent magnet

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10.1088/0953-2048/27/4/044026

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title = "Development and testing of a 2.5 kW synchronous generator with a high temperature superconducting stator and permanent magnet rotor",

abstract = "High temperature superconducting (HTS) armature windings have the potential for increasing the electric loading of a synchronous generator due to their high current transport capacity, which could increase the power density of an HTS rotating machine. In this work, a novel synchronous generator prototype with an HTS stator and permanent magnet rotor has been developed. It has a basic structure of four poles and six slots. The armature winding was constructed from six double-pancake race-track coils with 44 turns each. It was designed to deliver 2.5 kW at 300 rpm. A concentrated winding configuration was proposed, to prevent interference at the ends of adjacent HTS coils. The HTS stator was pressure mounted into a hollow Dewar cooled with liquid nitrogen. The whole stator could be cooled down to around 82 K by conduction cooling. In the preliminary testing, the machine worked properly and could deliver 1.8 kW power when the armature current was 14.4 A. Ic for the HTS coils was found to be suppressed due to the influence of the temperature and the leakage field. {\textcopyright} 2014 IOP Publishing Ltd.",

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author = "Timing Qu and Peng Song and Xiaoyu Yu and Chen Gu and Longnian Li and Xiaohang Li and Dewen Wang and Boping Hu and Duxing Chen and Pan Zeng and Zhenghe Han",

year = "2014",

month = jan,

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doi = "10.1088/0953-2048/27/4/044026",

language = "English",

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journal = "Superconductor Science and Technology",

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Development and testing of a 2.5 kW synchronous generator with a high temperature superconducting stator and permanent magnet rotor. / Qu, Timing; Song, Peng; Yu, Xiaoyu; Gu, Chen; Li, Longnian; Li, Xiaohang; Wang, Dewen; Hu, Boping; Chen, Duxing; Zeng, Pan; Han, Zhenghe.

In: Superconductor Science and Technology, Vol. 27, No. 4, 044026, 01.01.2014.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Development and testing of a 2.5 kW synchronous generator with a high temperature superconducting stator and permanent magnet rotor

AU - Qu, Timing

AU - Song, Peng

AU - Yu, Xiaoyu

AU - Gu, Chen

AU - Li, Longnian

AU - Li, Xiaohang

AU - Wang, Dewen

AU - Hu, Boping

AU - Chen, Duxing

AU - Zeng, Pan

AU - Han, Zhenghe

PY - 2014/1/1

Y1 - 2014/1/1

N2 - High temperature superconducting (HTS) armature windings have the potential for increasing the electric loading of a synchronous generator due to their high current transport capacity, which could increase the power density of an HTS rotating machine. In this work, a novel synchronous generator prototype with an HTS stator and permanent magnet rotor has been developed. It has a basic structure of four poles and six slots. The armature winding was constructed from six double-pancake race-track coils with 44 turns each. It was designed to deliver 2.5 kW at 300 rpm. A concentrated winding configuration was proposed, to prevent interference at the ends of adjacent HTS coils. The HTS stator was pressure mounted into a hollow Dewar cooled with liquid nitrogen. The whole stator could be cooled down to around 82 K by conduction cooling. In the preliminary testing, the machine worked properly and could deliver 1.8 kW power when the armature current was 14.4 A. Ic for the HTS coils was found to be suppressed due to the influence of the temperature and the leakage field. © 2014 IOP Publishing Ltd.

AB - High temperature superconducting (HTS) armature windings have the potential for increasing the electric loading of a synchronous generator due to their high current transport capacity, which could increase the power density of an HTS rotating machine. In this work, a novel synchronous generator prototype with an HTS stator and permanent magnet rotor has been developed. It has a basic structure of four poles and six slots. The armature winding was constructed from six double-pancake race-track coils with 44 turns each. It was designed to deliver 2.5 kW at 300 rpm. A concentrated winding configuration was proposed, to prevent interference at the ends of adjacent HTS coils. The HTS stator was pressure mounted into a hollow Dewar cooled with liquid nitrogen. The whole stator could be cooled down to around 82 K by conduction cooling. In the preliminary testing, the machine worked properly and could deliver 1.8 kW power when the armature current was 14.4 A. Ic for the HTS coils was found to be suppressed due to the influence of the temperature and the leakage field. © 2014 IOP Publishing Ltd.

KW - conduction cooling

KW - HTS armature winding

KW - HTS generator

KW - permanent magnet

U2 - 10.1088/0953-2048/27/4/044026

DO - 10.1088/0953-2048/27/4/044026

M3 - Article

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JO - Superconductor Science and Technology

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SN - 0953-2048

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M1 - 044026

ER -

Development and testing of a 2.5 kW synchronous generator with a high temperature superconducting stator and permanent magnet rotor

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Keywords

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