August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Design and comparative analysis of MgB2 and YBCO wire-based superconducting wind power generators

Aug 31, 2017, 1:45 PM
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m E3 - Wind, Wave, and Tidal Generators Thu-Af-Po4.06


Gi-Dong Nam (Changwon National University)


Recently, MgB2 wire and YBCO wire have been widely used in superconducting generators. However, they have differences in terms of material characteristics, product performance, price, and the relevant cryogenic cooling system, which have a great influence on the design of superconducting generators. Therefore, it is necessary to compare which wire is better for superconducting wind turbine design. This paper deals with design and comparative analysis of direct-driven type superconducting wind power generators according to MgB2 and YBCO wires. The specifications of MgB2 and YBCO wires are investigated, and the 3MW superconductor generators using MgB2 and YBCO wires are designed based on the rated rotational speed of 14 rpm. The magnetic field distributions of the generator are analysed using a 3D finite element method program. The generator designs using MgB2 and YBCO wire are compared focused on the size, weight, magnetic flux density, operation current value, and required length of the wire. As a result, the weight and volume of the generator using YBCO wire are lighter and smaller than the generator using MgB2 wire, however, the required length of MgB2 is shorter than the YBCO wire. When the weight, the volume and the length are considered together, the generator design using the MgB2 wire is more attractive than the YBCO. This result will be useful for designing a superconducting wind turbine and selecting an appropriate wire.

Submitters Country Republic of Korea

Primary authors

Gi-Dong Nam (Changwon National University) Byeong-Soo Go (Changwon National University) Ms Hae-Jin Sung (Changwon Nationnal University) Minwon Park (Changwon National University) Prof. In-Keun Yu (Changwon National Univerisity)


Prof. Hyun-Kyung Shin (University of Ulsan)

Presentation materials