Development of a protection system for an experimental SMES device

Author

Conlon, M.F. ; Kession, P.J. ; Chao, C.

Author_Institution

Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia

Volume

2

Issue

3

fYear

1992

Firstpage

130

Lastpage

138

Abstract

The development and testing of a quench detection and protection system for a small, liquid helium cooled, superconducting coil are described. The coil is being used as part of an experimental superconducting magnetic energy storage (SMES) device for power system applications. Special requirements are placed on the detection and protection system of such a coil as rapid energy exchanges are frequent. The detection signal is derived from a combination of the main coil voltage and a search coil voltage. The protection method is by way of an external parallel resistor. The problem of opening a circuit breaker in series with the coil is analyzed. Actual quench recordings are used to demonstrate the effectiveness of the system. The selection of the dump resistor value is considered.<>

Keywords

power system protection; quenching (thermal); superconducting magnet energy storage; circuit breaker; dump resistor value; experimental SMES device; external parallel resistor; main coil voltage; power system applications; protection system; quench detection; rapid energy exchanges; search coil voltage; superconducting coil; Circuit breakers; Power system protection; Resistors; Samarium; Signal detection; Superconducting coils; Superconducting magnetic energy storage; System testing; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.160151

Filename

160151