Distributed Partial Discharge Locating and Detecting Scheme Based on Optical Fiber Rayleigh Backscattering Light Interference

Zhou, Zhen; Liu, Hao; Zhang, Dawei; Han, Yongqin; Yang, Xinghai; Zheng, Xianfeng; Qu, Jun

doi:10.3390/s23041828

Cited by 8 publications

(4 citation statements)

References 23 publications

(23 reference statements)

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“…Outlook on PD Measurement using FBG Sensors PD detection using FBG sensors are of high interest among research institutes, but current work is still limited to simulated discharges in test cells. Other fibre optic-based technologies for PD detection such as interferometric [67,68] and distributed sensors [69] have been proposed but are also in the preliminary stages. There currently exists a research gap between research facilities and field deployment of fibre optic-based PD measurements in transformers.…”

Section: Pd Classificationmentioning

confidence: 99%

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Ramnarine,

Peesapati,

Djurović

2023

Energies

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The high-voltage (HV) assets in the existing power transmission network will experience increased electrical, thermal, environmental and mechanical stresses and, therefore, robust condition monitoring is critical for power system reliability planning. Fibre Bragg grating (FBG) sensors offer a promising technology in HV applications due to their immunity to electromagnetic interference and multiplexing capability. This paper reviews the current technology readiness levels of FBG sensors for condition monitoring of transformers, transmission lines, towers, overhead insulators and power cables, with the aim of stimulating further development and deployment of fibre-based HV asset management systems. Currently, there are several reported cases of FBG sensors used for condition monitoring of HV assets in the field, proving their feasibility for long-term use in the power grid. The review shows that FBG technology is versatile and can facilitate multi-parameter measurements, which will standardise the demodulation equipment and reduce challenges with integrating different sensing technologies.

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Section: Pd Classificationmentioning

confidence: 99%

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Ramnarine,

Peesapati,

Djurović

2023

Energies

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“…Multi-parameter distributed fiber optic sensors are now highly effective instruments for tracking and analyzing different physical parameters in real time along an optical fiber's length. The field of distributed fiber optic sensing has undergone a revolution with the integration of Rayleigh and Brillouin scattering in a hybrid sensor system [6]. This sensor system provides a strong and all-encompassing solution for monitoring multiple physical parameters along the length of optical fibers by combining the strengths of both scattering phenomena.…”

Section: Introductionmentioning

confidence: 99%

Multi-parameter distributed fiber sensing system based on hybrid Rayleigh and Brillouin scattering

Lalam,

Bhatta,

Buric

et al. 2024

Photonic Instrumentation Engineering XI

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The integration of Rayleigh and Brillouin scattering in a hybrid sensor system has revolutionized the field of distributed fiber optic sensing. This hybrid sensor system provides a strong and all-encompassing solution for monitoring multiple physical parameters, including strain, temperature, and vibrations along the sensing fiber length by combining the strengths of both scattering phenomena. We present a hybrid multi-parameter distributed sensing system in this paper that is based on the Brillouin and Rayleigh scattering mechanisms. Utilizing a single-end access to the sensing fiber, we measured acoustic vibrations based on phase-sensitive optical time domain reflectometry (Φ-OTDR), whereas we employed a Brillouin optical time reflectometry (BOTDR) for strain and temperature monitoring. The experimental results demonstrate the effectiveness of the hybrid sensor system to achieve simultaneous and independent measurements over a 25 km long single-mode silica fiber at 3 m spatial resolution. Furthermore, we used a large effective area fiber (LEAF) for simultaneous and discriminative strain, temperature, and vibration monitoring in order to get around the cross-sensitivity between the strain and temperature in the BOTDR system. A variety of applications, such as the structural health monitoring of buildings, bridges, and oil and gas pipelines, industrial process control, security, and surveillance, can be served by the suggested multi-parameter hybrid distributed sensor system.

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“…φ-OTDR was proposed firstly for distributed intrusion sensing [ 1 , 2 ]. Since then, it has been used for structure health monitoring [ 3 ], partial discharge locating and detecting [ 4 ], railway monitoring [ 5 ], downhole measurement [ 6 ], traffic monitoring [ 7 ], pipeline leakage detection and localization [ 8 ], earthquake detection [ 9 ], rising bubble measurement [ 10 ], and many other applications [ 11 ]. In particular, by using submarine fiber-optic cables, φ-OTDR is used for hydroacoustic signal detection [ 12 ], submarine structural characterization [ 13 ], coastal safety [ 14 ], water column and sediment monitoring [ 15 ], near-field target localization in shallow water [ 16 ], etc.…”

Section: Introductionmentioning

confidence: 99%

Polar Decomposition of Jones Matrix and Mueller Matrix of Coherent Rayleigh Backscattering in Single-Mode Fibers

Dong,

Zhang,

2024

Sensors

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The Jones matrix and the Mueller matrix of the coherent Rayleigh backscattering (RB) in single-mode fibers (SMFs) have been derived recently. It has been shown that both matrices depict two polarization effects—birefringence and polarization-dependent loss (PDL)—although the SMF under investigation is purely birefringent, having no PDL. In this paper, we aim to perform a theoretical analysis of both matrices using polar decomposition. The derived sub-Jones/Mueller matrices, representing birefringence and PDL, respectively, can be used to investigate the polarization properties of the coherent RB. As an application of the theoretical results, we use the derived formulas to investigate the polarization properties of the optical signals in phase-sensitive optical time-domain reflectometry (φ-OTDR). For the first time, to our knowledge, by using the derived birefringence–Jones matrix, the common optical phase of the optical signal in φ-OTDR is obtained as the function of the forward phase and birefringence distributions. By using the derived PDL–Mueller matrix, the optical intensity of the optical signal in φ-OTDR is obtained as the function of the forward phase and birefringence distributions as well as the input state of polarization (SOP). Further theoretical predictions show that, in φ-OTDR, the common optical phase depends on only the local birefringence in the first half of the fiber section, which is occupied by the sensing pulse, irrelevant of the input SOP. However, the intensity of the φ-OTDR signal is not a local parameter, which depends on the input SOP and the birefringence distribution along the entire fiber section before the optical pulse. Moreover, the PDL measured in φ-OTDR is theoretically proven to be a local parameter, which is determined by the local birefringence and local optical phase distributions.

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Distributed Partial Discharge Locating and Detecting Scheme Based on Optical Fiber Rayleigh Backscattering Light Interference

Cited by 8 publications

References 23 publications

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Multi-parameter distributed fiber sensing system based on hybrid Rayleigh and Brillouin scattering

Polar Decomposition of Jones Matrix and Mueller Matrix of Coherent Rayleigh Backscattering in Single-Mode Fibers

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