The Effect of Flux Diverters on Energy Storage Capacity and Heat Losses in a HTS SMES

Author

Deng, Xinhuan ; Tang, Yuchen ; Ren, Ling ; Shen, Shikui ; Xu, Yan ; Shi, Jack ; Li, Jie

Author_Institution

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

Volume

24

Issue

3

fYear

2014

fDate

Jun-14

Firstpage

1

Lastpage

5

Abstract

Energy storage capacity and the heat losses are key factors in superconducting magnetic energy storage (SMES). In this paper, the use of flux diverters to increase the energy storage capacity and reduce the heat losses is analyzed in a HTS SMES magnet. The analysis is carried out using a 100 kJ SMES model based on FEM. The location, the geometry shape and the material configuration of flux diverters are investigated. To get an accurate loss reduction, magnetic losses of flux diverters are considered in heat loss calculation. The results show flux diverters are effective in the rated condition. Because the flux distribution is affected by the saturation level of flux diverters, the effect is related to the operating current.

Keywords

divertors; energy storage; finite element analysis; heat losses; magnetic leakage; magnetic storage; FEM; HTS SMES; energy 100 kJ; energy storage capacity; flux distribution; flux diverters; heat loss calculation; heat losses; loss reduction; magnetic losses; superconducting magnetic energy storage; Heating; Magnetic flux; Magnetic hysteresis; Magnetic noise; Saturation magnetization; Superconducting magnetic energy storage; AC losses; SMES; energy storage capacity; flux diverters; magnetic losses; superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2013.2284428

Filename

6623081