HTS Vernier Machine for Direct-Drive Wind Power Generation

Author

Yuting Gao ; Ronghai Qu ; Jian Li ; Zhe Zhu ; Dawei Li

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol, Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

24

Issue

5

fYear

2014

fDate

Oct. 2014

Firstpage

1

Lastpage

5

Abstract

A high-temperature superconducting (HTS) vernier machine is proposed for direct-drive wind power generation. The rotor adopts conventional configuration where high-temperature superconductors are used for field winding, while the stator has toothed-pole structure, which is composed of copper drum windings and iron core, thus combining advantages of both HTS and vernier machines. With the employment of finite-element analysis, the electromagnetic performances of the proposed machine are evaluated and quantitatively compared with a conventional HTS generator. It is found that the HTS vernier machine can provide higher average torque, lower pulsation torque, higher efficiency and smaller short circuit current, among which the last one is rather large in conventional HTS machines.

Keywords

finite element analysis; high-temperature superconductors; stators; superconducting machines; wind power plants; HTS Vernier machine; HTS generator; average torque; copper drum windings; direct-drive wind power generation; electromagnetic performances; field winding; finite-element analysis; high-temperature superconducting; iron core; lower pulsation torque; short circuit current; stator; toothed-pole structure; High-temperature superconductors; Rotors; Stator cores; Stator windings; Torque; Windings; Finite-element analysis (FEA); high-temperature superconductor; vernier machine; wind power generation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2014.2347314

Filename

6877635