An Optically-Interrogated Rogowski Coil for Passive, Multiplexable Current Measurement

被引:21
作者
Orr, Philip [1 ]
Niewczas, Pawel [1 ]
Booth, Campbell [1 ]
Fusiek, Grzegorz [1 ]
Dysko, Adam [1 ]
Kawano, Fumio [2 ]
Nishida, Tomonori [3 ]
Beaumont, Phil [2 ]
机构
[1] Univ Strathclyde, Inst Energy & Environm, Glasgow G1 1XW, Lanark, Scotland
[2] Toshiba Int Europe, Durham DH1 5TS, England
[3] Toshiba Co Ltd, Tokyo 1058001, Japan
基金
英国工程与自然科学研究理事会;
关键词
Fiber Bragg grating; optical current sensor; power system instrumentation; Rogowski coil;
D O I
10.1109/JSEN.2013.2252614
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report on the design and implementation of a novel hybrid electro-optical sensor for the measurement of electric current. A fibre Bragg grating is utilized to passively interrogate an air-cored coil via a low-voltage piezoelectric multilayer stack. Peak Bragg reflections are strain-tuned by the Rogowski coil/piezoelectric transducer combination, allowing primary current reconstruction to be performed remotely and without active electronics at the sensor. The preliminary embodiment demonstrates long-distance, passive measurement of current for metering and protection relaying applications, and retains the fiber transducer's capability for serial multiplexing.
引用
收藏
页码:2053 / 2054
页数:2
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