This paper presents an overview of the DC-DC power converters dedicated to HVDC proposing a classification based on their structure.
Comparison between numerical and analytical methods of AC resistance evaluation of medium frequency transformers : validation on a prototype
In the future, medium-frequency transformers (with a frequency range of 5-100 kHz) will be major components in dc-dc converter applications, for both medium-voltage direct current and high-voltage direct current networks.
Analysis of voltage and current unbalance in a multi-converter topology for a DC-based offshore wind farm
High Voltage Direct Current (HVDC) is increasingly being used for electric power transmission over long distances.
Gate-drive power supplies in medium voltage and high voltage direct current (MVDC / HVDC) applications require medium to high voltage insulation.
Influence of Electric Field on Space Charge Distribution in Alumina-filled Epoxy Resin for Application in HVDC GIS
The present paper deals with space charge in alumina filled epoxy resin for HVDC applications.
Evolution of the Cathode Spot Distribution in an Axial Magnetic Field Controlled Vacuum Arc at Long Contact Gap
The evolution of the cathode spot distribution is an important aspect of the behavior of vacuum arcs controlled with an axial magnetic field.
The measurement of Partial Discharges (PD) in Gas Insulated Substation (GIS) enables to identify and analyse various types of defects that can result in electrical breakdown.
The density normalized Effective ionization coefficients and critical breakdown electric field of the Heptafluoro-iso-butyronitrile (Fluoronitriles), and Fluoronitriles-CO2 mixture are investigated using the steady state Townsend (SST) experimental setup, over a range of the density normalized critical electric field (E/N) from 200-1066 Td (E is the electric field and N the gas density).
A Gas Insulated Substation (GIS) consists of a high-voltage conductor maintained by spacers placed in a metal enclosure filled with a dielectric gas.