A Comparison of Cryogenic-Cooled and Superconducting Electrical Machines

This paper compares the steady-state operation of air-cooled, cryogenic-cooled and superconducting induction machines. The aim is to investigate the impact of a very low temperature and the influence of a superconducting rotor cage on the performances of standard designed, air-cooled machines. The r...

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Bibliographic Details
Main Authors: Biasion, Marco, Joao Fernandes, F. P., Branco, Paulo Jose da Costa, Vaschetto, Silvio, Cavagnino, Andrea, Tenconi, Alberto
Format: Conference Proceeding
Language:English
Subjects:
cooling
Core loss
core losses
Cryogenics
Electrical machines
Energy conversion
induction machines
Induction motors
modeling
Rotors
Steady-state
Superconductivity
superconductors
testing
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Summary:This paper compares the steady-state operation of air-cooled, cryogenic-cooled and superconducting induction machines. The aim is to investigate the impact of a very low temperature and the influence of a superconducting rotor cage on the performances of standard designed, air-cooled machines. The research work includes a review of the state of the art of cryogenic-cooled and superconducting induction machines for various applications. The performances of the machines are assessed analytically by solving the single-phase equivalent circuit and considering the influence of the temperature, the skin-effect and the nonlinear behavior of superconductors. The analytical results are validated by experiments on a fractional kilowatt induction motor. The experimental activities include the characterization of the core losses at cryogenic temperature.
ISSN:2329-3748
DOI:10.1109/ECCE47101.2021.9595182