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Radio Location of Partial Discharge Sources: A Support Vector Regression Approach

Iorkyase, E. T., Tachtatzis, Christos, Lazaridis, Pavlos, Glover, Ian and Atkinson, R. (2017) Radio Location of Partial Discharge Sources: A Support Vector Regression Approach. IET Science, Measurement & Technology. ISSN 1751-8830

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Partial discharge (PD) can provide a useful forewarning of asset failure in electricity substations. A significant proportion of assets are susceptible to PD due to incipient weakness in their dielectrics. This paper examines a low cost approach for uninterrupted monitoring of PD using a network of inexpensive radio sensors to sample the spatial patterns of PD received signal strength. Machine learning techniques are proposed for localisation of PD sources. Specifically, two models based on Support Vector Machines (SVMs) are developed: Support Vector Regression (SVR) and Least-Squares Support Vector Regression (LSSVR). These models construct an explicit regression surface in a high dimensional feature space for function estimation. Their performance is compared to that of artificial neural network (ANN) models. The results show that both SVR and LSSVR methods are superior to ANNs in accuracy. LSSVR approach is particularly recommended as practical alternative for PD source localisation due to it low complexity.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Schools: School of Computing and Engineering
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Depositing User: Pavlos Lazaridis
Date Deposited: 02 Nov 2017 15:44
Last Modified: 28 Aug 2021 15:26


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