B4.3 - Fiber Optic Current Sensor System for Long-Term Monitoring of Geomagnetically Induced Currents in the Power Grid
- Event
- SMSI 2025
2025-05-06 - 2025-05-08
Nürnberg - Band
- Lectures
- Chapter
- B4 - Optical Sensor Systems
- Author(s)
- J. Mandl, P. Trampitsch, A. Fröhlich, R. Klambauer, A. Bergmann - University of Technology, Graz (Austria)
- Pages
- 101 - 102
- DOI
- 10.5162/SMSI2025/B4.3
- ISBN
- 978-3-910600-06-5
- Price
- free
Abstract
Within this work, we describe an interferometric fiber optic current sensor for the monitoring of geomagnetically induced currents in power grids. For the first time, the developed system is able to provide information about the distribution of these currents on individual phases and lines on high-voltage potential. During preliminary testing, a current sensitivity in the mA range was achieved. For in-field operation, the system was equipped with a custom electronics unit to enable on-board data processing, data storage as well as remote data access.