Thermal design and operation performance of the rotating cryostat of a superconducting generator

Author

Bodner, B. ; Kofler, H. ; Zerobin, F.

Author_Institution

Anstalt fur Tieftemperaturforschung, Graz, Austria

Volume

24

Issue

2

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

800

Lastpage

803

Abstract

The most sensitive part of superconducting rotors for power stations is the optimal design of the liquid-helium region and long-term operation performance of the insulation system. The authors report on the thermal design of the entire rotor structure. Following a rough estimate of the heat losses using mean values for the material properties, some numerical results of calculation codes for the stationary temperature profiles are reported. Transient temperature profiles in individual parts of the rotor are given. The results are compared with experimental measurements of a test rotor.

Keywords

AC generators; cryostats; numerical methods; rotors; superconducting machines; 2 MVA; NbTi; computer program; heat losses; insulation system; liquid He; numerical results; optimal design; power stations; rotating cryostat; rotor structure; stationary temperature profiles; superconducting generator; thermal design; transient temperature profile; Cooling; Copper; Cryogenics; Heat transfer; Helium; Machine windings; Rotors; Temperature; Testing; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.11345

Filename

11345