Space Charge Measurements for HVDC GIS Spacer using the Thermal Step Method

2018-11-12T09:51:09+00:00août 31st, 2018|Appareillage électrique haute tension, Publications|

High voltage direct current (HVDC) technologies are currently emerging to develop new energy transmission networks able to integrate renewable energy sources with remote locations from consumers. Gas Insulated Substations (GIS) have been widely used in alternating current (AC) transmission due to their low footprint and high reliability.

Discharging micro cavities and electric field enhancement due to cavities in HVDC XLPE cables

2018-11-12T09:54:29+00:00août 31st, 2018|Publications, Systèmes de câbles & jonctions HVDC|

This paper presents simulation and calculation results of electric field enhancement due to various cavity shapes carried out on polymeric high voltage direct current (HVDC) cables. Two aspects are considered: partial discharges (PD) in microcavities and field enhancement factor under DC.

A 100 kW 1.2 kV 20 kHz DC-DC converter prototype based on the Dual Active Bridge topology

2018-11-12T10:08:40+00:00août 24th, 2018|Electronique de puissance & convertisseurs, Publications|

This article presents the design, the fabrication, and the test of an isolated DC-DC converter for renewable energy applications. The converter is based on the Dual Active Bridge topology and uses silicon carbide power semiconductors and a medium frequency transformer. The design process covers hardware ranging from the semiconductor die to the complete power converter. For the control, a rapid prototyping approach was used. The experimental validation of the 100 kW prototype is presented.

SuperGrid Institute at CIGRE Technical Exhibition

2018-11-12T10:09:09+00:00août 9th, 2018|Conference, Evenement, Tout|

From 27 to 31 August, SuperGrid Institute participate at the CIGRE Technical Exhibition 2018: the leading Power Systems Event. Posters, workshops, sessions… you will meet many of our SuperGrid Institute experts, and of course at our stand n°243, available to network and discuss.