Print Email Facebook Twitter Study of DC partial discharge on dielectric surfaces: Mechanism, patterns and similarities to AC Title Study of DC partial discharge on dielectric surfaces: Mechanism, patterns and similarities to AC Author Abdul Madhar, S. (TU Delft DC systems, Energy conversion & Storage; Haefely AG) Mor, A. R. (TU Delft DC systems, Energy conversion & Storage) Mraz, Petr (Haefely AG) Ross, Robert (TU Delft DC systems, Energy conversion & Storage) Date 2021-03 Abstract This paper presents the investigation on surface discharge behavior of various dielectric samples under DC. It sequentially develops the knowledge base for the study and analysis of the partial discharge (PD) defect with the goal of PD defect identification under DC. In order to facilitate this, the material properties of the dielectric are measured. Finite Element (FEM) simulation is used to obtain the preliminary estimates of the electric field and dielectric properties that concern partial discharge behavior. The DC-PD tests performed on the surface dielectric samples demonstrate a highly plausible behavior based on simulation results and other literature. It also displays a great degree of similarity towards the AC surface discharge behavior. The paper concludes by presenting novel partial discharge fingerprints for the surface PD defect that will aid in defect identification under HVDC. Subject HVDCMaterial propertiesPartial Discharge (PD)Pattern recognitionPulse Sequence Analysis (PSA)Surface discharge To reference this document use: http://resolver.tudelft.nl/uuid:3ede30a8-9f07-48dd-8a49-1bd5f034976b DOI https://doi.org/10.1016/j.ijepes.2020.106600 ISSN 0142-0615 Source International Journal of Electrical Power & Energy Systems, 126 Part of collection Institutional Repository Document type journal article Rights © 2021 S. Abdul Madhar, A. R. Mor, Petr Mraz, Robert Ross Files PDF 1_s2.0_S014206152033091X_main.pdf 5.28 MB Close viewer /islandora/object/uuid:3ede30a8-9f07-48dd-8a49-1bd5f034976b/datastream/OBJ/view