About Aurélie Flégeo

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So far Aurélie Flégeo has created 443 blog entries.

SuperGrid Institute demonstrates the partial discharge behaviour of SF6 subtitute gases which can be used in the future HVDC GIS as part of the PROMOTioN project

2020-03-04T10:32:39+01:00March 4th, 2020|Event, High Voltage Substation Equipment|

SuperGrid Institute will be able to develop an effective partial discharge monitoring system for the future SF6 free high voltage equipment.

Partial Discharge Behavior of Protrusion on High Voltage Conductor in GIS/GIL under High Voltage Direct Current: Comparison of SF6 and SF6 Alternative Gases

2020-04-02T15:16:51+02:00February 28th, 2020|High Voltage Substation Equipment, Publications|

Recent studies have demonstrated that fluoronitrile (FN) NovecTM 4710 and fluoroketone (FK) NovecTM 5110 show higher dielectric strength than SF6. These gases can be mixed with a buffer gas such as CO2 and technical air to have suitable dielectric properties for high voltage insulation applications.

SuperGrid Institute’s vision at the second conference on Power Transmission in Africa (Johannesburg)

2020-02-10T17:16:17+01:00February 10th, 2020|Conference, Event|

This morning, SuperGrid Institute presented at the second conference on Power Transmission in Africa (Johannesburg) its vision on new transmission technologies and architecture, shaping the future grids. With emphasis on the fantastic opportunity that the latest HVDC technologies and solutions represent for a robust and interconnected power system in Africa, able to address major issues linked to energy transition.

Phd Paolo ERRANTE “Liquid Spray Injection inside the expansion volume of a CO2 High Voltage Circuit Breaker”

2020-02-12T10:22:27+01:00February 5th, 2020|High Voltage Substation Equipment, Phd|

In the framework of the research activities of the High Voltage Substation Equipment program of SuperGrid, it has been proposed to introduce such species by means of an evaporative liquid spray. The interaction between injected droplets and the mixture of hot gases successively flowing into the chamber and vented outside the chamber during the mechanical separation of the electric contacts should allow spray evaporation and transport of the modified gas mixture towards the arc region.

HVDC plays a key role in the future AC/DC power systems

2020-02-26T10:57:51+01:00February 5th, 2020|Conference, Event|

This Tuesday the 4th of February, at the European Commission’s Directorate General for Energy, Bruno Luscan, CTO of SuperGrid Institute, presented the company’s vision on the importance of the role of HVDC links within AC/DC networks.

Phd Majed Eddine MOUSTAID “Experimental development of a thermosiphon loop for thermal regulation of power electronic devices”

2020-01-16T16:25:42+01:00January 16th, 2020|Phd, Power Electronics & Converters|

The work of this thesis focuses on the experimental development of a passive and biphasic cooling system to cool down power electronics. Some of those modules are mean voltage power converters developed by Supergrid Institute. Some constraints have been imposed upstream to this project. While some limitations are of the technological nature, other constraints are related mainly to the environmental and biological aspects. The first part of this thesis was to find a suitable cooling system that could be adapted to the project specifications. After some research, we decided to build a loop thermosiphon filled with NOVEC 649.

SuperGrid Institute has achieved a major milestone in the development of 10 kV Silicon Carbide (SiC) devices

2020-01-09T09:07:49+01:00January 9th, 2020|Power Electronics & Converters|

SuperGrid Institute has achieved a major milestone in the development of 10 kV Silicon Carbide (SiC) devices such as 5A BJT and 50A PIN diode as part of its work on developing innovative solutions for MV converters. Recent tests revealed outstanding switching performances.