Design of the Cryogenic System for a 400 kW Experimental HTS Synchronous Motor

Author

Chen, AnBin ; Liu, XiaoKun ; Xu, FengYu ; Cao, Jiwei ; Li, Liyi

Author_Institution

Inst. of Cryogenics & Superconductive Technol., Harbin Inst. of Technol., Harbin, China

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

2062

Lastpage

2065

Abstract

A 400 kW radial-axial flux type experimental HTS synchronous motor is designed. There are twelve armature coils used HTS wires in the motor. They are accommodated in the cooling vessels made of FRP material, and twelve cooling vessels are enclosed in the vacuum vessel. In order to cool the HTS coils of the motor, a sub-cooled liquid nitrogen cryogenic system is presented. The operation temperature is below 70 K. This system consists of HTS coils cryostats, liquid nitrogen transfer-line, liquid nitrogen dewar and a cold box with liquid nitrogen pump, G-M cryorefrigerators and some control valves inside. In this paper, different kinds of the heat loads of the system including the AC loss, current lead, supporters and radiation are presented. Basis on the heat load and operating temperature, the main parameters and equipments of the system are determined.

Keywords

cooling; cryopumping; cryostats; high-temperature superconductors; superconducting coils; synchronous motors; FRP material; G-M cryorefrigerators; HTS synchronous motor; armature coils; cold box; cooling vessels; cryogenic system; cryostats; high temperature super conductor; liquid nitrogen dewar; liquid nitrogen pump; liquid nitrogen transfer line; power 400 W; radial-axial flux; Cryogenics; high temperature superconductivity; sub-cooled liquid nitrogen; superconducting motor;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2039206

Filename

5415677