Partial discharge detection using low cost RTL-SDR model for wideband spectrum sensing

Abstract

This version is available at http://eprints.hud.ac.uk/id/eprint/31039/ The University Repository is a digital collection of the research output of the University, available on Open Access. Copyright and Moral Rights for the items on this site are retained by the individual author and/or other copyright owners. Users may access full items free of charge; copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational or notforprofit purposes without prior permission or charge, provided:• The authors, title and full bibliographic details is credited in any copy;• A hyperlink and/or URL is included for the original metadata page; and • The content is not changed in any way.For more information, including our policy and submission procedure, please contact the Repository Abstract-Partial discharge (PD) is one of the predominant factors to be controlled to ensure reliability and undisrupted functions of power generators, motors, Gas Insulated Switchgear (GIS) and grid connected power distribution equipment, especially in the future smart grid. The emergence of wireless technology has provided numerous opportunities to optimise remote monitoring and control facilities that can play a significant role in ensuring swift control and restoration of HV plant equipment. In order to monitor PD, several approaches have been employed, however, the existing schemes do not provide an optimal approach for PD signal analysis, and are very costly. In this paper an RTL-SDR (Software Defined Radio) based spectrum analyser has been proposed in order to provide a potentially low cost solution for PD detection and monitoring. Initially, a portable spectrum analyser has been used for PD detection that was later replaced by an RTL-SDR device. The proposed schemes exhibit promising results for spectral detection within the VHF and UHF band.

Partial discharge detection in smart grid using software defined radio

“…Important factors such as the number of pulses, their distribution within the power system cycle, pules rise times, peak magnitudes and widths, are required for early detection of PDs. One of the challenging tasks in this project is the use of SDR technology to detect and extract the PD characteristics [17].…”

Received Signal Strength Intensity Based Localization of Partial Discharge in High Voltage Systems

“…Usually, PD activity takes place mainly in power transmission lines, power transformers, generators, switchgears and power cables [4]. PD generally arises at sites such as voids, joints, cavities or delamination zones in high voltage component insulation systems [2] [5]. The repetitive occurrence of PD activity can lead to system degradation and can affect the performance of the system and consequently may lead to the breakdown of the whole insulation system [2] [6] [7].…”

“…PD source location based on spatially-separated sensors has been explored in the past by using various techniques including RF antenna array, time of arrival (TOA), time difference of arrival (TDOA), direction of arrival (DOA), use of SDR USRP N200 and RTL-SDR etc. [5] [6] [8] [9]. Free space radiometric measurement proposed in [10] uses four types of emulators.…”

Localization of Partial Discharge by Using Received Signal Strength

“…On the other hand, although TDOA is effective and works correctly at the commercial level [4], the approach proposed in this paper has several advantages over this approach. Recently, the work in [6] has shown the potential use of low-cost RTL-SDR software defined radio for wideband spectrum sensing which is based on the received signal strength. The key limitation for the potential use of RTL-SDR is accuracy and sampling speed.…”