Title :
Development of an optical current transformer by using a Bi-YIG crystal for electric power system protection and stabilization control
Author :
Hayashi, H. ; Iwasa, S. ; Ueda, K. ; Takeshita, H. ; Terazono, K. ; Higuchi, S.
Author_Institution :
Ueda Lab., Kyushu Univ., Fukuoka, Japan
Abstract :
A compact laser based current transformer (CT) is developed for electric power system protection. Bi-YIG crystal is selected as a useful material based on measurements. A prototype model Bi-YIG laser CT was compared with a resistance shunt CT using a simulation device of transmission lines and similar behavior was observed, clearly demonstrating its usefulness.
Keywords :
bismuth compounds; current transformers; garnets; magneto-optical isolators; power system control; power system protection; power system stability; yttrium compounds; 1310 nm; Bi-YIG optical current transformer; BiYFe5O12; BiYIG; Faraday rotation; breakdown current measurement; compact laser based current transformer; diode laser source; electric power system protection; resistance shunt CT; stabilization control; transmission lines; Crystalline materials; Current transformers; Electrical resistance measurement; Laser modes; Optical materials; Power lasers; Power system modeling; Power system protection; Transmission line measurements; Virtual prototyping;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.967935
