Nos actualités
Supplying Power to HV (≥10kV) control and measurement boards: a challenge to overcome
New high-voltage power electronic converters and facilities for transmission grids tend to have multiple power switches at different floating potentials. Moreover, the trend goes towards the use of power switches with higher operating voltages (up to 10kV), in order to reduce the number of switches by system.
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.
Measurement and Analysis of Partial Discharges in HVDC Gas Insulated Substations
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.
Effective ionization coefficients and limiting field strength of Fluoronitriles-CO2 mixtures
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).
Nonlinear Control of a Fully-Fed Variable Speed Pumped Storage Plant
This paper presents the nonlinear control of a Fully-Fed Synchronous Machine based Variable Speed Pumped Storage Plant (FFSM PSP).
Influence of thermal treatment on space charge in alumina-filled epoxy resin for HVDC GIS
A Gas Insulated Substation (GIS) consists of a high-voltage conductor maintained by spacers placed in a metal enclosure filled with a dielectric gas.
Recommendations for surface conductivity characterisation under high voltage direct current (HVDC)
Phenomena of charge accumulation on the insulator surface are of major interest in Gas Insulated Substations (GIS) under Direct Current (DC)...
DC cable modelling and High Voltage Direct Current grid grounding system
This paper describes the influence of grounding on voltage and current transients during DC-link fault in a High Voltage Direct Current (HVDC) cable system.
High Dynamics Control for MMC Based on Exact Discrete-Time Model with Experimental Validation
Due to the complexity of the system, the control of the Modular Multilevel Converter (MMC) constitutes an intensive research activity.
