Study of DC partial discharge on dielectric surfaces: Mechanism, patterns and similarities to AC

Abdul Madhar, S.; Mor, A. R.; Mraz, Petr; Ross, Robert

doi:10.1016/j.ijepes.2020.106600

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

HVDC
Material properties
Partial Discharge (PD)
Pattern recognition
Pulse 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