Fiber Fabry-Perot sensor for partial discharges detection

Maosen Guo; Hui Ding; Chen Chen; Chunyang Han

doi:10.1117/12.2656182

9 January 2023 Fiber Fabry-Perot sensor for partial discharges detection

Maosen Guo, Hui Ding, Chen Chen, Chunyang Han

Proceedings Volume 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022); 125071V (2023) https://doi.org/10.1117/12.2656182
Event: 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 2022, Changchun, China

Abstract

Partial discharge (PD) is an early warning for deterioration of oil-paper insulated equipment, which seriously endangers the safety of power system. It is significant to realize online detection of PD in oil-paper insulated equipment. Due to the advantages of anti-electromagnetic interference and locating the discharge source, the acoustic emission (AE) method is widely used in online PD detection. Conventional piezoelectric transducer (PZT) acoustic sensors cannot be installed inside equipment in practical applications, resulting in low sensitivity and susceptibility to electromagnetic interference from electrical equipment. To solve the above issues, an ultrasonic sensor based on Fabry-Perot (FP) interferometer with gold-coated circular fused silica diaphragm is proposed and experimentally verified. The results show that the fiber optic ultrasonic sensor can be placed inside the oil-paper insulated equipment for partial discharge detection, and has higher sensitivity compared with the traditional PZT.

Citation Download Citation

Maosen Guo, Hui Ding, Chen Chen, and Chunyang Han "Fiber Fabry-Perot sensor for partial discharges detection", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 125071V (9 January 2023); https://doi.org/10.1117/12.2656182

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