Journal ArticleDOI
Identification and localization of partial discharge in transformer insulation adopting cross recurrence plot analysis of acoustic signals detected using fiber Bragg gratings
TLDR
In this paper, the use of a Cross Recurrence (CR) Plot Analysis based technique applied on signals captured using fiber Bragg grating sensors to improve the accuracy of detection and localization of partial discharges is proposed.Abstract:
In this paper, we propose the use of a Cross Recurrence (CR) Plot Analysis based technique applied on signals captured using fiber Bragg grating sensors to improve the accuracy of detection and localization of partial discharges. With the help of detailed simulations, the performance of the proposed technique in estimating the Time Difference of Arrival (TDOA) is evaluated. A novel technique of extracting the frequency from CR plots is also proposed and frequencies of single as well as multiple-tones signals are extracted successfully. Controlled experiments are conducted to verify the technique and the estimates of location are found to be within an error of less than a centimeter.read more
Citations
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Journal ArticleDOI
Applications of the Acoustic Method in Partial Discharge Measurement: A Review
TL;DR: In this article, the main features of acoustic emission technique and their physics are addressed, and the structure of acoustic sensors employed for capturing signals is studied, along with the general considerations in the signal processing of the acoustic signals.
Journal ArticleDOI
Overview and Partial Discharge Analysis of Power Transformers: A Literature Review
TL;DR: In this paper, a review and evaluation of the current state-of-the-art methods for PD detection and localization techniques, and methodologies in power transformers is presented.
Journal ArticleDOI
High sensitivity detection of partial discharge acoustic emission within power transformer by sagnac fiber optic sensor
TL;DR: In this paper, the authors used a Sagnac fiber sensor system built in lab to investigate the benefits of using fiber optic sensor for partial discharge acoustic detection, where acoustic pulses were induced in oil outside the winding and in oil duct inside the winding of a single phase 50 kV transformer.
Journal ArticleDOI
Review of optical fibre sensors for electrical equipment characteristic state parameters detection
TL;DR: In this article, the authors present the most promising optical fiber sensor for each state parameter, including characteristic gases, abnormal vibration, ultrasonic produced by partial discharge, and abnormal temperature rise.
Journal ArticleDOI
Partial Discharge Detection in an Oil-Filled Power Transformer Using Fiber Bragg Grating Sensors: A Review
TL;DR: In this paper, the authors present a review of Fiber Bragg Grating (FBG) sensors' application as a sensor for partial discharge monitoring in an oil-filled power transformer.
References
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Journal ArticleDOI
Recurrence plots for the analysis of complex systems
TL;DR: The aim of this work is to provide the readers with the know how for the application of recurrence plot based methods in their own field of research, and detail the analysis of data and indicate possible difficulties and pitfalls.
Journal ArticleDOI
Partial discharge monitoring of power transformers using UHF sensors. Part I: sensors and signal interpretation
TL;DR: In this article, the propagation velocity matrix (PVM) and propagation time matrix (PTM) were introduced to detect partial discharge (PD) in power transformers, which can be used to index a database of physical descriptions of the transformer that could provide additional information to assist with diagnosis.
Journal ArticleDOI
Acousto-Ultrasonic Optical Fiber Sensors: Overview and State-of-the-Art
Graham Wild,Steven Hinckley +1 more
TL;DR: A review of acoustic and ultrasonic optical fiber sensors (OFSs) is given in this article, which covers optical fiber sensing methods for detecting dynamic strain signals, including general sound and acoustic signals, high-frequency signals, and other signals such as acoustic emissions, and impact induced dynamic strain.