Partial Discharge Location using Unsynchronized Radiometer Network for Condition Monitoring in HV Substations - A Proposed Approach

Neto, José; Macedo, E C; Neto, José Sérgio da Rocha; Costa, Edson G. da; Bhatti, Shahzad Ahmed; Glover, Ian

doi:10.1088/1742-6596/364/1/012053

Cited by 13 publications

(11 citation statements)

References 10 publications

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“…The main components of the PD WSN are antenna, radiometer sensor and PD emulator. These have been prototyped in a simplified form and their basic functionality has been demonstrated [4]. The preliminary results suggests that the implementation of a radiometer network composed by several sensor nodes is sufficient to localize a source of PD.…”

Section: Visionmentioning

confidence: 99%

An envelope detector as a trading cost technique for radiometric partial discharge detection

Neto

Macedo

et al. 2014

2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings

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Partial discharge (PD) measurement is an established high voltage insulation monitoring technique used to facilitate the detection of incipient faults in high voltage apparatus. Based on the great importance of the power system, is constant the research about the nature and characteristics of PD sources. A low-cost, free-standing, radiometric, partial discharge wireless sensor network (PD WSN) is described for application to realtime condition monitoring, asset management and operations optimization in the future smart grid. The proposed PD WSN is based on a novel approach to PD location which obviates the need for synchronization between sensors thereby improving scalability. In this paper, the progress in the development of a PD WSN prototype is described. For the proposed evaluation of PD signals, several measurements were performed using a diskcone antenna and a commercial system based on the IEC 60270 standard. Early progress in the development of components for a PD detection system using a network of free-standing radiometers for monitoring of electricity substations has been also presented.

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Section: Visionmentioning

confidence: 99%

An envelope detector as a trading cost technique for radiometric partial discharge detection

Neto

Macedo

et al. 2014

2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings

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“…Traditional radiometric techniques for the detection and location of PD sources, such as time of arrival and time difference of arrival (Judd, ; Li et al, ; Moore et al, ; Portugues et al, ; Robles et al, ; Zhu et al, , ), employ technologies that require high‐speed data acquisition and relatively large amounts of data processing, as well as synchronization between nodes, making the design of the sensor nodes complex and costly. An RSS‐only monitoring and location technology provides a simpler and cheaper approach, which can be fully scalable and requires no synchronization between nodes (de Souza Neto et al, ). Previous RSS PD measurement systems have been developed (Baker et al, , ; Huang et al, ) that utilize radio‐frequency (RF) envelope‐tracking power detectors to reduce the required sampling rate; however, data acquisition in excess of 10 MSa/s is still required to process radiometric PD signals.…”

Section: Introductionmentioning

confidence: 99%

Wireless Sensor Network for Radiometric Detection and Assessment of Partial Discharge in High‐Voltage Equipment

et al. 2018

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Monitoring of partial discharge (PD) activity within high‐voltage electrical environments is increasingly used for the assessment of insulation condition. Traditional measurement techniques employ technologies that either require off‐line installation or have high power consumption and are hence costly. A wireless sensor network is proposed that utilizes only received signal strength to locate areas of PD activity within a high‐voltage electricity substation. The network comprises low‐power and low‐cost radiometric sensor nodes which receive the radiation propagated from a source of PD. Results are reported from several empirical tests performed within a large indoor environment and a substation environment using a network of nine sensor nodes. A portable PD source emulator was placed at multiple locations within the network. Signal strength measured by the nodes is reported via WirelessHART to a data collection hub where it is processed using a location algorithm. The results obtained place the measured location within 2 m of the actual source location.

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“…Especially in high voltage (HV) electrical power systems, a number of materials such as, solid, liquid and gaseous are employed to insulate certain components or equipment. Hence the detection and localization of PD is essential [4] [5] [6].…”

Section: Introductionmentioning

confidence: 99%

Partial discharge localization based on received signal strength

Mohamed

Lazaridis

Upton

et al. 2017

2017 23rd International Conference on Automation and Computing (ICAC)

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Abstract-Partial Discharge (PD) occurs when insulation containing defects or voids is subject to high voltages. If left untreated PD can degrade insulation until, eventually, catastrophic insulation failure occurs. The detection of PD current pulses, however, can allow incipient insulation faults to be identified, located and repaired prior to plant failure. Wireless technology has paved the path for PD detection and monitoring. Software Defined Radio (SDR) is a promising technology. Signals from two PD sources are received at six outdoors locations using an SDR USRP N200 which is connected to a laptop. PD sources, thereafter, are localized based on received signal strengths.

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Partial Discharge Location using Unsynchronized Radiometer Network for Condition Monitoring in HV Substations - A Proposed Approach

Cited by 13 publications

References 10 publications

An envelope detector as a trading cost technique for radiometric partial discharge detection

An envelope detector as a trading cost technique for radiometric partial discharge detection

Wireless Sensor Network for Radiometric Detection and Assessment of Partial Discharge in High‐Voltage Equipment

Partial discharge localization based on received signal strength

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