Models of AC and DC cable systems for technical and economic evaluation of offshore wind farm connection

2018-09-03T10:30:20+00:00September 3rd, 2018|High Voltage Substation Equipment, HVDC Cable Systems, Publications|

Accurate cable modeling is a recurrent issue for electric architecture evaluation and design, especially in specific contexts, like offshore wind farms. This paper proposes optimal analytical cable models for the technical and economic assessment of offshore wind generation systems.

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

2018-09-11T14:29:58+00:00August 31st, 2018|High Voltage Substation Equipment, 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.

Uncertainty Quantification for the Eulerian-Lagrangian simulation of evaporating sprays

2018-08-24T10:34:21+00:00July 26th, 2018|High Voltage Substation Equipment, Publications|

Evaporating sprays can be almost routinely simulated using an Eulerian-Lagrangian approach which relies on a RANS modeling of the continuous phase and a Lagrangian description of the discrete phase, including a turbulent dispersion model to express the effect of turbulent fluctuations within the carrier phase on the spray particles and an evaporation model for the spray droplets.

An injection molding press for our Chemistry & Materials test platform

2018-08-09T17:44:00+00:00July 13th, 2018|High Voltage Substation Equipment, HVDC Cable Systems|

With a new semi-automatic injection mixer and an injection molding press, the material characterization and the processing of our samples will take less time – close to industrial production thanks to the Automatic Pressure Gelation (APG) method.

High Voltage Electrical Properties of Epoxy / h-BN Microcomposites

2018-08-22T09:40:27+00:00July 4th, 2018|High Voltage Substation Equipment, Publications|

Two high voltage properties – DC conductivity and AC breakdown strength – of epoxy composites filled with 30 wt% of micron sized hexagonal boron nitride (h-BN) are discussed in comparison to neat epoxy.

Testing phase after installation of SuperGrid Institute’s hyperbaric vessel

2018-08-09T17:44:02+00:00June 28th, 2018|High Voltage Substation Equipment, HVDC Cable Systems|

Our 10 tones, six meters long, hyperbaric vessel has been installed at our premises and is now going through final tests before commercial use.

PhD Benoît TEZENAS du MONTCEL “Experimental study and modelling of a metal vapor plasma in a vacuum chamber for the development of High-Voltage Circuit Breakers”

2018-08-21T13:55:21+00:00May 29th, 2018|High Voltage Substation Equipment, Phd|

The study involves first the building of an experimental setup where arcs, created between two fixed CuCr25 contacts, were visualized using a high-speed camera in a vacuum demountable chamber.

Numerical investigations of ReBCO conductors with high limitation electric field for HVDC SFCL

2018-08-23T10:15:48+00:00February 14th, 2018|High Voltage Substation Equipment, Publications|

Superconducting fault current limiters (SFCL) are already in operation in alternative current medium voltage applications and their use in HVDC grids is very promising due to their capability of reducing high short-circuit currents.