NDLI: Comparison Study of Superconducting Wind Generators With HTS and LTS Field Windings

Content Provider	IEEE Xplore Digital Library
Author	Wang, J. Qu, R. Liu, Y. He, J. Zhu, Z. Fang, H.
Copyright Year	2002
Description	Large-scale direct-driven wind turbines are preferred for offshore wind generation from the viewpoint of cost of energy and system reliability. However, direct-driven generators of traditional technology are very difficult to be scaled up to a rated power of 10 MW or above. Superconducting generators offer a candidate to fill that gap. A feasible superconducting wind generator topology has rotor field windings made of superconductors and traditional copper stator windings carrying alterative currents. Nowadays, two kinds of superconductors are available in the market: the low-temperature superconductors (LTS) and the high-temperature superconductors (HTS). They have great differences in terms of material characteristics, product performance, price, and the relevant cryogenic and refrigeration system, which have a great influence on the design of superconducting generators. In this paper, a comparison study of superconducting wind generators with HTS and LTS rotor field windings is carried out, considering the performance and cost of superconductors and the cryogenic and refrigeration system. From the viewpoint of initial capital, technology maturity, and engineering feasibility, the LTS wind generator is recommended for subscale or full-sized prototype development in the near future.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	6
Page Count	6
File Size	1206232
File Format	PDF
ISSN	10518223
Volume Number	25
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High-temperature superconductors Generators Rotors Magnetic flux Windings Cryogenics superconducting generator high temperature superconductor low temperature superconductor offshore wind generation rotor field winding
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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