Research Progress of All-Fiber Optic Current Transformers in Novel Power Systems: A Review

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-01-02 DOI:10.1002/mop.70061

Zhenhua Li, Jiuxi Cui, Haoyu Chen, Heping Lu, Feng Zhou, Paulo R. F. Rocha, Chenyi Yang

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Abstract

The new electric power system, dominated by renewable energy sources, demands current transformers with wide bandwidth and broad dynamic sensing capabilities. An all-fiber optic that combines fiber optic sensing technology with the Faraday magneto-optical effect offers an effective solution for precise dynamic current sensing. The paper first introduces the principle and basic optical path structure of the all-fiber optic current transformer (AFOCT), followed by a discussion on the error factors affecting the measurement performance and operational reliability of AFOCT. It then summarizes and presents specific solutions developed over the past decade. Lastly, the paper concludes with a summary and future outlook on applying AFOCT in power grids. Optical current transformers are currently widely used in ultrahigh and extra-high voltage transmission engineering. As optical current transformer technology matures, coupled with advancements in intelligence levels, the prospects in the field of current measurement are broad and promising.

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication