Performance Analysis of a Superconducting Motor for Higher Efficiency Design

The superconducting motor shows several advantages such as smaller size and higher efficiency against conventional motor especially utilized in ship propulsion application. However, this size reduction merit appears in large capacity more than several MW. We are going to develop a 17-MW class synchr...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2013-06, Vol.23 (3), p.5202004-5202004
Main Authors: Baik, Seungkyu, Kwon, Youngkil, Park, Sail, Kim, Homin
Format: Article
Language:English
Subjects:
Applied sciences
Coils
Computer simulation
Conductors (devices)
Construction costs
Efficiency
Electrical engineering. Electrical power engineering
Electrical machines
Electromagnetic compatibility
Electromagnetism
Electromagnets
Electronics
Energy storage
Exact sciences and technology
Field coils
General (including economical and industrial fields)
High temperature superconductors
Information, signal and communications theory
Magnetic fields
manufacturing cost
Marine vehicles
Miscellaneous
Motors
Propulsion
ship propulsion
Ships
superconducting motor
Superconductivity
Synchronous motors
Telecommunications and information theory
Various equipment and components
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Summary:The superconducting motor shows several advantages such as smaller size and higher efficiency against conventional motor especially utilized in ship propulsion application. However, this size reduction merit appears in large capacity more than several MW. We are going to develop a 17-MW class synchronous motor with a rotating HTS (high-temperature superconducting) coil that is aimed to be utilized for ship propulsion, therefore it has a slow rotating speed of about 200 rpm. The ship propulsion motor must generate high electromagnetic torque instead of low-speed. Therefore, the rotor (field) coils have to generate large magnetic flux that results in large amounts of expensive HTS conductor for the field coil. In this paper, a 17-MW HTS motor for ship propulsion is designed with smaller manufacturing cost by HTS field coil length reduction because the HTS conductor cost is a critical factor in the construction cost of an HTS motor. Furthermore, the output performance of the machine is simulated based on the equivalent circuit model of the synchronous motor with back electromagnetic field values from three-dimensional magnetic field calculation. The simulation results are used to design higher efficiency motor.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2013.2243199