TY - JOUR
T1 - Study of DC partial discharge on dielectric surfaces: Mechanism, patterns and similarities to AC
AU - Madhar, Saliha Abdul
AU - Mor, Armando Rodrigo
AU - Mraz, Petr
AU - Ross, Rob
PY - 2021/3
Y1 - 2021/3
N2 - 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.
AB - 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.
KW - HVDC
KW - Material properties
KW - Partial Discharge (PD)
KW - Pattern recognition
KW - Pulse Sequence Analysis (PSA)
KW - Surface discharge
UR - http://www.scopus.com/inward/record.url?scp=85096169386&partnerID=8YFLogxK
U2 - 10.1016/j.ijepes.2020.106600
DO - 10.1016/j.ijepes.2020.106600
M3 - Article
SN - 0142-0615
VL - 126
JO - International Journal of Electrical Power & Energy Systems
JF - International Journal of Electrical Power & Energy Systems
M1 - 106600
ER -