Development of stator windings for fully superconducting motor with MgB2 wires

Kazuhiro Kajikawa; Yushi Uchida; Taketsune Nakamura; Hiroaki Kobayashi; Tsuyoshi Wakuda; Kazuhide Tanaka

doi:10.1109/TASC.2013.2240033

Development of stator windings for fully superconducting motor with MgB₂ wires

Kazuhiro Kajikawa, Yushi Uchida, Taketsune Nakamura, Hiroaki Kobayashi, Tsuyoshi Wakuda, Kazuhide Tanaka

Superconductive Systems Engineering Laboratory

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

17 Citations (Scopus)

Abstract

Stator windings for a superconducting motor with MgB₂ wires are fabricated and tested. The stator windings are composed of 12 element coils in the form of a racetrack, and located in iron core slots to generate a rotating magnetic field of three phases and four poles. Preliminary estimations by means of numerical calculations with a finite element method indicate that the magnetic-flux distribution in a gap between the stator and rotor cores contains relatively significant components of fifth and seventh harmonics compared with a fundamental component. An MgB₂ rotor prepared in the previous work can be rotated at a synchronous speed successfully by energizing the fabricated stator windings with a pulse width modulation inverter and compensating for the higher harmonics with a torque boost voltage.

Original language	English
Article number	6410357
Journal	IEEE Transactions on Applied Superconductivity
Volume	23
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2013.2240033
Publication status	Published - 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2013.2240033

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abstract = "Stator windings for a superconducting motor with MgB2 wires are fabricated and tested. The stator windings are composed of 12 element coils in the form of a racetrack, and located in iron core slots to generate a rotating magnetic field of three phases and four poles. Preliminary estimations by means of numerical calculations with a finite element method indicate that the magnetic-flux distribution in a gap between the stator and rotor cores contains relatively significant components of fifth and seventh harmonics compared with a fundamental component. An MgB2 rotor prepared in the previous work can be rotated at a synchronous speed successfully by energizing the fabricated stator windings with a pulse width modulation inverter and compensating for the higher harmonics with a torque boost voltage.",

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AU - Kajikawa, Kazuhiro

AU - Uchida, Yushi

AU - Nakamura, Taketsune

AU - Kobayashi, Hiroaki

AU - Wakuda, Tsuyoshi

AU - Tanaka, Kazuhide

PY - 2013

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AB - Stator windings for a superconducting motor with MgB2 wires are fabricated and tested. The stator windings are composed of 12 element coils in the form of a racetrack, and located in iron core slots to generate a rotating magnetic field of three phases and four poles. Preliminary estimations by means of numerical calculations with a finite element method indicate that the magnetic-flux distribution in a gap between the stator and rotor cores contains relatively significant components of fifth and seventh harmonics compared with a fundamental component. An MgB2 rotor prepared in the previous work can be rotated at a synchronous speed successfully by energizing the fabricated stator windings with a pulse width modulation inverter and compensating for the higher harmonics with a torque boost voltage.

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Development of stator windings for fully superconducting motor with MgB₂ wires

Abstract

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