Print Email Facebook Twitter New clustering techniques based on current peak value, charge and energy calculations for separation of partial discharge sources Title New clustering techniques based on current peak value, charge and energy calculations for separation of partial discharge sources Author Mor, A. R. (TU Delft DC systems, Energy conversion & Storage) Castro Heredia, L.C. (TU Delft DC systems, Energy conversion & Storage) Muñoz, F. A. (Universidad del Valle) Date 2017-02-01 Abstract Clustering techniques are of main interest for separation of partial discharge (PD) sources. The separation is achieved if it is possible to extract from the PD pulses specific information related to the source. In this sense, this paper explores the capability of fundamental quantities derived from PD current pulses such as the peak amplitude Ipeak, the apparent charge Q, and the energy E as parameters intended for source separation. For this purpose, an unconventional PD measuring circuit is used to acquire PD pulses from several laboratory test objects. Once the pulses are digitized and stored, the values of Ipeak, Q, and E are computed according to the proposed methods in time and frequency domain. A theoretical analysis is presented to illustrate how values of Ipeak, Q and E can be related to the pulse shape so that they can be used as source separation parameters. Then, the IpeakQE clusters are computed for laboratory measurements. The results showed that these parameters are suitable for separation of sources provided that the pulse shapes are different. This cluster technique was also proved to be independent of the change of the acquisition parameters that are relevant for unconventional measuring systems. In addition, the easiness of the quantities computation makes the clustering technique introduced in this paper feasible for practical applications. Subject CoronaDischarges (electric)Fault locationPartial dischargesPulse measurementsShapechargeclustering techniquesenergyfrequency domainpulse shapestime domain To reference this document use: http://resolver.tudelft.nl/uuid:ab4f8ab8-cc2b-4714-8579-85d63f3f7365 DOI https://doi.org/10.1109/TDEI.2016.006352 ISSN 1070-9878 Source IEEE Transactions on Dielectrics and Electrical Insulation, 24 (1), 340-348 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2017 A. R. Mor, L.C. Castro Heredia, F. A. Muñoz Files PDF 12338861_2017_Rodrigo_clu ... s_TDEI.pdf 2.28 MB Close viewer /islandora/object/uuid:ab4f8ab8-cc2b-4714-8579-85d63f3f7365/datastream/OBJ/view