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FastGrid : Cost effective FCL using advanced superconducting tapes for future HVDC grids

Communications2021-08-11T17:53:56+02:00June 16th, 2017|Appareillage électrique haute tension|

FastGrid is a project funding for an amount of 7.2 M€ by the European Union’s Horizon 2020. It started in January 2017 for a period of 42 months. Together 9 academic and 3 industrial partners participate to the development of a superconductive fault current limiter associated with a DC breaker will fulfil the requirement of one the protection strategies of the future HVDC networks. The project is divided in 4 technical main packages.

Space charge measurements on cable dielectrics

Communications2021-08-11T17:54:14+02:00June 14th, 2017|Appareillage électrique haute tension|

When a voltage is applied to a cable, electric charges are established in its electrodes, inducing an electric field in the dielectric. This electric field implies that the cable is submitted to an electrical stress which, under certain circumstances induces an accelerated ageing of its dielectric which may be followed by its breakdown.

The EE4HVS Mastère program

Communications2018-08-09T17:46:16+02:00June 14th, 2017|Tout|

Globally, the energy landscape is shifting; the generation of electricity is moving towards greener energies, to incorporate more and more renewable power. Transmitted over continents and oceans, transmission lines are spanning over longer distances when connecting power generation areas to consumers. How can we help making this international electrical network of the near-future into a reality?

The EE4HVS Mastère program

Communications2021-08-11T18:17:26+02:00June 14th, 2017|Tout|

Globally, the energy landscape is shifting; the generation of electricity is moving towards greener energies, to incorporate more and more renewable power. Transmitted over continents and oceans, transmission lines are spanning over longer distances when connecting power generation areas to consumers. How can we help making this international electrical network of the near-future into a reality?

Toward deeper submarine cable installations

Communications2018-08-09T17:46:19+02:00February 16th, 2017|Systèmes de câbles haute tension|

Numerous High Voltage Direct Current (HVDC) submarine cables have been installed in Europe and more are yet to come. Such transmission allows the trading of energy or the supply of isolated areas with almost no limitations on distance (typically 100-1000km). Interconnections such as NorNed and soon Nord Link and North Sea Link will provide a safe path for the large integration of renewable energies in northern Europe (Figure 1).

Toward deeper submarine cable installations

Communications2021-08-11T18:11:43+02:00February 16th, 2017|Systèmes de câbles haute tension|

Numerous High Voltage Direct Current (HVDC) submarine cables have been installed in Europe and more are yet to come. Such transmission allows the trading of energy or the supply of isolated areas with almost no limitations on distance (typically 100-1000km). Interconnections such as NorNed and soon Nord Link and North Sea Link will provide a safe path for the large integration of renewable energies in northern Europe (Figure 1).

PhD Houssem Eddine NECHMI “Research of gas/ gas mixture without sulfur hexafluoride for High Voltage Insulation applications”

Communications2021-08-11T17:44:29+02:00January 31st, 2017|Appareillage électrique haute tension, Phd|

SULPHUR hexafluoride, SF6, is the most common compressed gas used in high voltage power equipment since the 1950s and in HV transmissions and substations applications (GIS, GCB, GIL …), SF6 holds a prominent place because of its dielectric and chemical performance (high dielectric strength, non-toxicity, low condensation temperature, thermal stability, non-flammability, chemical inactivity with the other constituent materials of the apparatus, availability and moderate cost). It is one of the best insulators gas known today.

TM1 test rig renovation

Communications2018-08-09T17:46:23+02:00January 23rd, 2017|Stabilisation & stockage|

Why do we stil need experimental test-rigs in hydraulic sciences? We use extensively computatinal sciences to estiate performances of runners. Although it is accurate, Computatinal Fluid Dynamics (CFD) need to be checked with experimental data especially for cavitatin and transients. For that reason when prototype machines are greater than 5 MW or larger than 3 m of diameter it is mandatory to estiate on reduced scaled model with a great accuracy performances according to IEC 60193.

TM1 test rig renovation

Communications2021-08-11T18:09:13+02:00January 23rd, 2017|Stabilisation & stockage|

Why do we stil need experimental test-rigs in hydraulic sciences? We use extensively computatinal sciences to estiate performances of runners. Although it is accurate, Computatinal Fluid Dynamics (CFD) need to be checked with experimental data especially for cavitatin and transients. For that reason when prototype machines are greater than 5 MW or larger than 3 m of diameter it is mandatory to estiate on reduced scaled model with a great accuracy performances according to IEC 60193.

SGI participation to IAHR Conference

Communications2021-08-11T16:31:35+02:00January 18th, 2017|Conference, Evenement, Stabilisation & stockage|

The International Association for Hydro-Environment Engineering and Research (IAHR), founded in 1935, is a worldwide independent organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. The 28th IAHR Symposium on Hydraulic Machinery and Systems took place in Grenoble on July.

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