Validation of partial discharge emulator simulations using free-space radiometric measurements

Jaber, Adel; Lazaridis, Pavlos I.; Saeed, B.; Zhang, Y; Khan, Umar Farooq; Upton, David; Ahmed, H.; Mather, Peter; Vieira, M F Q; Atkinson, Robert; Judd, M.D.; Glover, Ian

doi:10.1109/icsae.2016.7810238

Cited by 9 publications

(4 citation statements)

References 14 publications

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“…Specialized PD signal emulators in [ 33 ] producing random PD signals have also been tested during this field-trial with very similar results as with the calibrator when proper averaging was applied to the received signal.…”

Section: Experimental Setup and Resultsmentioning

confidence: 98%

An Efficient Algorithm for Partial Discharge Localization in High-Voltage Systems Using Received Signal Strength

Khan

Lazaridis

Mohamed

et al. 2018

Sensors

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The term partial discharge (PD) refers to a partial bridging of insulating material between electrodes that sustain an electric field in high-voltage (HV) systems. Long-term PD activity can lead to catastrophic failures of HV systems resulting in economic, energy and even human life losses. Such failures and losses can be avoided by continuously monitoring PD activity. Existing techniques used for PD localization including time of arrival (TOA) and time difference of arrival (TDOA), are complicated and expensive because they require time synchronization. In this paper, a novel received signal strength (RSS) based localization algorithm is proposed. The reason that RSS is favoured in this research is that it does not require clock synchronization and it only requires the energy of the received signal rather than the PD pulse itself. A comparison was made between RSS based algorithms including a proposed algorithm, the ratio and search and the least squares algorithm to locate a PD source for nine different positions. The performance of the algorithms was evaluated by using two field scenarios based on seven and eight receiving nodes, respectively. The mean localization error calculated for two-field-trial scenarios show, respectively, 1.80 m and 1.76 m for the proposed algorithm for all nine positions, which is the lowest of the three algorithms.

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Section: Experimental Setup and Resultsmentioning

confidence: 98%

An Efficient Algorithm for Partial Discharge Localization in High-Voltage Systems Using Received Signal Strength

Khan

Lazaridis

Mohamed

et al. 2018

Sensors

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“…The floating electrode emulator, acrylic tube emulator, and epoxy dielectric emulator are shown in Figure 3. Further detail about the PD emulators can be found in [6].…”

Section: Pd Measurement Apparatusmentioning

confidence: 99%

Diagnostic potential of free-space radiometric partial discharge measurements

Jaber

Lazaridis

Saeed

et al. 2017

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)

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The work reported in this paper addresses the calibration of four types of partial discharge (PD) emulator required for the development of a PD Wireless Sensor Network (WSN). Three partial discharge (PD) emulators have been constructed: a floating-electrode emulator, and two internal PD emulators. Both DC and AC HV power supplies are used to initiate PD which is measured using concurrent free-space radiometry (FSR) and a galvanic contact method based on the IEC 60270 standard. A new method of estimating absolute PD activity level from a radiometric measurement is proposed.

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“…In [7], a physical model relating PD activity to tree development is proposed. PD emulator simulations are carried out using the CST Microwave Studio software in [8]. Discrete wavelet transform is used effectively for denoising of PD signals [9? ].…”

Section: Introductionmentioning

confidence: 99%

Partial discharge detection and localization on the medium voltage XLPE cables with multiclass support vector machines

Serttaş¹,

Hocaoğlu²

2020

Turk J Elec Eng & Comp Sci

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In medium voltage cables, partial discharges (PD's) are the major problems that trigger electrical insulation failures. Therefore, classification of PD source type and failure localization in medium voltage cables are significant issues of medium voltage engineering. Therefore, in this study, both detection and localization of PD are studied. As a first step, 4 different kind of defects are artificially generated at the same length of the same kind of medium voltage cross-linked polyethylene (XLPE) cables. Consequently, an experimental setup is built. During the experiments, different medium voltage levels are applied to the cables, then the PD signals are measured and recorded. To classify the signals of different defects, different statistics of frequency spectrum of the signals are considered as features. As a final task of this step, multiclass support vector machine is employed and the PD signals are classified. In the second step, one kind of defect is generated at different locations of same kind of longer XLPE cable. Consequently, the cable exposed to different medium voltage levels and PD signals are measured and recorded. The statistics of the data are employed as features. Finally, PD signals measured from different lengths are classified by the help of multiclass support vector machine.

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Validation of partial discharge emulator simulations using free-space radiometric measurements

Cited by 9 publications

References 14 publications

An Efficient Algorithm for Partial Discharge Localization in High-Voltage Systems Using Received Signal Strength

An Efficient Algorithm for Partial Discharge Localization in High-Voltage Systems Using Received Signal Strength

Diagnostic potential of free-space radiometric partial discharge measurements

Partial discharge detection and localization on the medium voltage XLPE cables with multiclass support vector machines

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