Abstract
This paper describes the design and fabrication progress of a MW-class 2G high-temperature superconductor (HTS) motor for the ship propulsion application at Doosan Heavy Industries and Construction. The most important component of an HTS motor is the rotor, which is composed of HTS coil, torque disk, damper, and hollow shaft. The HTS rotor using hastelloy-based 2G HTS coils was designed and built. Open-circuit and short-circuit characteristics of the superconducting motor were investigated and compared with the analysis results at reduced excitation to verify the design. Preliminary testing of a 2G HTS motor has been conducted at a few hundred kW as per the design. Through these results, we verified that most of the design criteria could be satisfied.
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