Optical fiber sensor for partial discharge detection based on single-multi-single mode structure
Optical fiber sensors (OFS) have been demonstrated to be intrinsically safety and resistant to electromagnetic interference (EMI), making them highly effective in partial discharge (PD) detection which occurs during the operation of high-voltage power equipment. To achieve lightweight and highly sen...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad Pública de Navarra |
| Repositorio: | Academica-e. Repositorio Institucional de la Universidad Pública de Navarra |
| OAI Identifier: | oai:dnet:academicae__::e0dcbd020259d4dd8eaad4978dd8ab17 |
| Acceso en línea: | https://hdl.handle.net/2454/56767 |
| Access Level: | acceso abierto |
| Palabra clave: | Multimode interference Optical fiber sensing Partial discharge (PD) Sensitivity Single-multi-single mode (SMS) |
| Sumario: | Optical fiber sensors (OFS) have been demonstrated to be intrinsically safety and resistant to electromagnetic interference (EMI), making them highly effective in partial discharge (PD) detection which occurs during the operation of high-voltage power equipment. To achieve lightweight and highly sensitive detection, the OFS based on single-multi-single mode (SMS) structure has been designed and investigated for PD detection. The detection performance has been optimized through both demodulation topology and sensor probe structure. By optimizing the laser light source parameters, the detection amplitude increased by 5.65 times compared to standard broadband light. Multiple probes with different forms and lengths were wound for comparative testing, leading to the conclusion that using longer optical fibers for ultrasound signal detection can significantly improve detection sensitivity. In this regard, the 3-meter-long optical fiber was wound into a 2 cm diameter optical fiber probe and applied to the detection of a simulated oil-immersed transformer winding discharge device. The signal-to-noise ratio (SNR) was improved by 5.4 dB and 20.2 dB compared to internal and externally installed PZT(R15α), respectively. It is demonstrated that SMS type OFS shows significant potential as a novel approach for PD detection with the advantages of high sensitivity and streamlined structure. |
|---|