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18 January 2019

SuperGrid Institute and the CNAM have signed a framework agreement

SuperGrid Institute is delighted to have signed a framework agreement with the CNAM (Conservatoire National…
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Power Electronics & Converters

8 January 2019

25 kV-50 Hz railway power supply system emulation for Power-Hardware-in-the-Loop testings

This paper presents a methodology to consider the impedance of a grid in power hardware…
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Phd

17 December 2018

PhD Quentin MOLIN “High Voltage SiC MOSFET Robustness study: threshold voltage shift and short-circuit behaviour”

This manuscript is a contribution to reliability and robustness study of MOSFET components on silicon…
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Event

6 December 2018

SuperGrid Institute’s project selected for Grid2030

SuperGrid Institute and IMDEA joint forces with the support of REE, and created a consortium.…
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Phd

9 November 2018

PhD Miguel ROMERO RODRIGUEZ “Supervisory control synthesis for MMC-based HVDC systems”

This work proposes a method for the full development, from conception to implementation, of the…
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High Voltage Substation Equipment

2 November 2018

Study of Turn-to-Turn Electrical Breakdown for Superconducting Fault Current Limiter Applications

The rational insulation design of a resistive superconducting fault current limiter (r-SCFCL) requires data gathered…
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High Voltage Substation Equipment

31 October 2018

Arc appearance and cathode spot distribution in a long gap high-current vacuum arc controlled by an external axial magnetic field

An experimental study of a high-current vacuum arc (VA) generated between two static CuCr25 contacts…
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Event

22 October 2018

Bruno Luscan’s keynote presentation at EPE’18 ECCE EUROPE is now available online

“POWER GRIDS CONTROL: DRIVERS AND TRENDS” by Bruno Luscan, SuperGrid Institute’s keynote presentation at EPE'18…
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Event

12 October 2018

SuperGrid Institute committed to the Fête de la Science 2018

An exciting week at SuperGrid Institute with the Fête de la Science 2018! After the…
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High Voltage Substation Equipment

12 October 2018

Electrical properties of epoxy systems based on ionic liquids

In accordance with their interesting properties, ionic liquids (ILs) have attracted in the recent years…
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Event

8 October 2018

CIGRE Young Members organizing a visit at SuperGrid Institute

Once a year, CIGRE young members France, organizes industrial, onsite visits where academics, engineers and…
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Conference

4 October 2018

Measurement and Analysis of SiC-MOSFET threshold voltage shift

Gate-oxide technology weakness is a main reliability issue of Silicon Carbide MOSFET transistors. The threshold…
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All

27 September 2018

SuperGrid Institute investigates the performance of different environmentally friendly insulating gases

As part of PROMOTioN, Super Grid Institute (France) investigates the performance of different environmentally friendly…
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All

25 September 2018

PhD Etienne OUSS “Characterization of Partial Discharges and Defect Identification in High-Voltage Direct Current GIS”

This thesis aimed to characterize partial discharges in DC gas-insulated substations, and to develop an…
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Conference

7 September 2018

Repetitive short-circuit measurement on SiC MOSFET

Robustness study for the 1.7 kV SiC MOSFET is presented. After evaluation of the critical…
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High Voltage Substation Equipment

3 September 2018

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

Accurate cable modeling is a recurrent issue for electric architecture evaluation and design, especially in…
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High Voltage Substation Equipment

31 August 2018

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

High voltage direct current (HVDC) technologies are currently emerging to develop new energy transmission networks…
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High Voltage Substation Equipment

31 August 2018

Breakdown Characteristics and Pre-Breakdown Phenomena in Liquid and Boiling Nitrogen with Tape Electrode for r-SCFCL Applications

The rational insulation design of a resistive superconducting fault current limiter (r-SCFCL) requires data gathered…
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HVDC Cable Systems

31 August 2018

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

This paper presents simulation and calculation results of electric field enhancement due to various cavity…
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Power Electronics & Converters

24 August 2018

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

This article presents the design, the fabrication, and the test of an isolated DC-DC converter…
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Power Electronics & Converters

23 August 2018

Optimal sizing of a power electronic traction transformer for railway applications

This paper presents a methodology to optimize the sizing of such power converters in order…
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All

9 August 2018

SuperGrid Institute at CIGRE Technical Exhibition

From 27 to 31 August, SuperGrid Institute participate at the CIGRE Technical Exhibition 2018: the…
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Power Electronics & Converters

27 July 2018

A High Current Switching test bench to estimate switching losses for power switches

Our High Current Switching test bench is now operational! This one is integrated to the…
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High Voltage Substation Equipment

26 July 2018

Uncertainty Quantification for the Eulerian-Lagrangian simulation of evaporating sprays

Evaporating sprays can be almost routinely simulated using an Eulerian-Lagrangian approach which relies on a…
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High Voltage Substation Equipment

13 July 2018

An injection molding press for our Chemistry & Materials test platform

With a new semi-automatic injection mixer and an injection molding press, the material characterization and…
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Power Electronics & Converters

10 July 2018

Semi-Analytical Methods for Calculation of Leakage Inductance and Frequency-Dependent Resistance of Windings in Transformers

This paper focuses on analytical or semi-analytical calculation techniques to be integrated into a medium…
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HVDC Cable Systems

5 July 2018

High Voltage electrical properties of epoxy / micro h-BN composites

Two high voltage properties – DC conductivity and AC breakdown strength – of epoxy composites…
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HVDC Cable Systems

5 July 2018

Partial discharges for diagnosis of cavity growth under harmonics in HVDC XLPE model cables

This paper presents results carried out on polymeric high voltage direct current (HVDC) model cable.…
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High Voltage Substation Equipment

4 July 2018

High Voltage Electrical Properties of Epoxy / h-BN Microcomposites

Two high voltage properties – DC conductivity and AC breakdown strength – of epoxy composites…
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High Voltage Substation Equipment

28 June 2018

Testing phase after installation of SuperGrid Institute’s hyperbaric vessel

Our 10 tones, six meters long, hyperbaric vessel has been installed at our premises and…
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Power Electronics & Converters

20 June 2018

Theoretical and experimental analysis of the soft switching process for SiC MOSFETs based Dual Active Bridge converters

In the new electrical grids, series/parallel converters architectures can be considered for medium and high…
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Power Electronics & Converters

13 June 2018

Overview of DC-DC Converters dedicated to HVDC Grids

This paper presents an overview of the DC-DC power converters dedicated to HVDC proposing a…
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High Voltage Substation Equipment

29 May 2018

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”

The study involves first the building of an experimental setup where arcs, created between two…
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Conference

19 April 2018

MVDC DC-DC CONVERTER TECHNOLOGY – The building block of future MVDC grids

This poster describes the DC-DC converter technology intended for Medium Voltage Direct Current grids. The…
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HVDC Cable Systems

22 February 2018

Design of a 4-Phase Intercell Transformer Converter for a Space Charge Measuring System

This paper presents the design of a power electronics converter to produce strong current pulses…
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Power Electronics & Converters

20 February 2018

Optimal Supercapacitor Pack Sizing for Modular Multilevel Converter with Integrated Energy Storage System

In the new electrical grids, series/parallel converters architectures can be considered for medium and high…
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High Voltage Substation Equipment

14 February 2018

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

Superconducting fault current limiters (SFCL) are already in operation in alternative current medium voltage applications…
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High Voltage Substation Equipment

29 January 2018

A novel hyperbaric vessel for SuperGrid Institute

Since 2016, SuperGrid Institute’s program 4 has intensely worked on the specification of a test…
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Phd

26 January 2018

PhD William LEON GARCIA “Protection strategy for HVDC networks”

Multi-terminal high voltage direct current (MTDC) grids, or supergrids, are considered an interesting solution to…
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Power Electronics & Converters

24 January 2018

Comparison between numerical and analytical methods of AC resistance evaluation of medium frequency transformers : validation on a prototype

In the future, medium-frequency transformers (with a frequency range of 5-100 kHz) will be major…
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Power Electronics & Converters

24 January 2018

Analysis of voltage and current unbalance in a multi-converter topology for a DC-based offshore wind farm

High Voltage Direct Current (HVDC) is increasingly being used for electric power transmission over long…
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Power Electronics & Converters

24 January 2018

State of the art of gate-drive power supply for medium and high voltage applications

Gate-drive power supplies in medium voltage and high voltage direct current (MVDC / HVDC) applications…
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Phd

2 January 2018

PhD Kosei SHINODA “Control and Energy Management of MMC-based Multi-Terminal HVDC Grids”

The scope of this thesis includes control and management of the Modular Multilevel Converter (MMC)-based…
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Phd

2 January 2018

PhD Swann GASNIER “Decision support framework for offshore wind farm electrical networks: Robust design and assessment under uncertainties’’

Large offshore wind farms will be important players within the future energy landscape. What is…
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Conference

11 December 2017

Participation of SuperGrid to the ISH 2017 Conference

For 40 years, the biannual conference ISH (International Symposium on High Voltage Engineering) has permitted…
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High Voltage Substation Equipment

11 December 2017

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…
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High Voltage Substation Equipment

11 December 2017

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.
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High Voltage Substation Equipment

11 December 2017

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…
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High Voltage Substation Equipment

11 December 2017

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…
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High Voltage Substation Equipment

11 December 2017

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),…
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Publications

11 December 2017

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…
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High Voltage Substation Equipment

11 December 2017

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…
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High Voltage Substation Equipment

11 December 2017

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…
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HVDC Cable Systems

11 December 2017

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…
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Publications

11 December 2017

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)…
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Publications

11 December 2017

Supervisory Control for High-Voltage Direct Current Transmission Systems

The growth of renewable energy production is changing the future of power transmission systems.
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Publications

11 December 2017

DC Voltage Control of MMC-based HVDC grid with Virtual Capacitor Control

Ensuring that the DC voltage remains within an acceptable range is a major concern for…
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Publications

11 December 2017

Virtual Capacitor Control: Mitigation of DC Voltage Fluctuations in MMC-based HVDC Systems

The Modular Multilevel Converters (MMCs) have emerged as the most suitable converter technology for HVDC…
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Publications

11 December 2017

SFCL‑based full-selective protection strategy for multi-terminal HVDC grids: A case study

A protection strategy for high voltage direct current grids using superconducting fault current limiters as…
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Publications

11 December 2017

A protection strategy for multi-terminal hvdc grids based on mechanical dc circuit breakers

A protection strategy for multi-terminal HVDC (MTDC) grids based on AC/DC converters without fault blocking…
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HVDC Cable Systems

12 November 2017

Surge and extended overvoltage testing of HVDC cable systems

In this contribution we give a short status update of the Cigré JWG B4/B1/C4.73. This…
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Publications

20 October 2017

Thermal Management Optimization of a 5 MW Power Electronic Converter

High Voltage Direct Current (HVDC) is a replacement of the existing Alternating Current (HVAC) solutions…
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Power Electronics & Converters

13 September 2017

Protruding Ceramic Substrates for High-Voltage Packaging of Wide-Bandgap Semiconductors

With the development of wide bandgap semiconductors, voltage ratings of 10kV and more become realistic.…
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Power Electronics & Converters

13 September 2017

SiC power devices packaging with a short-circuit failure mode capability

The failure mode of press-pack-type packages dedicated to SiC devices is experimentally analyzed in order…
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Publications

13 September 2017

A multi-vendor protection strategy for HVDC grids based on low-speed DC circuit breakers

A protection strategy for Multi-terminal HVDC (MTDC) grids based on AC/DC converters without fault handling…
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Publications

13 September 2017

Modelling of a VSC-Based Multi-Terminal HVDC Network for Dynamic Stability Analysis

Self-commuted Voltage Source Converter (VSC) can significantly extend the flexibility and operability of HVDC system…
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Publications

13 September 2017

Stability criterion for the maximum clearing time of a DFIG

Stability is a primordial concern of power systems. From the generator point of view, it…
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Publications

13 September 2017

Optimum power flow control […] Intelligent Grid Management System

The Modular Multilevel Converter (MMC) is a most promising converter technology for the High Voltage…
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Publications

13 September 2017

Energy Control of Modular Multilevel Converter with a Novel Analytic Filter

The complex topology of the Modular Multilevel Converter (MMC) requires some additional controllers to keep…
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Publications

13 September 2017

Optimisation des pertes par commutation dans un convertisseur modulaire multiniveaux

A Comparative Assessment of […] for Modular Multilevel Converter

Thanks to scalability, performance and efficiency, the Modular Multilevel Converter (MMC), since its invention, becomes…
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Publications

13 September 2017

A Novel Modular Multilevel Converter Modelling Technique Based on Semi-Analytical Models

In this work, a novel dynamic models for MMC is proposed. The proposed models are…
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Publications

13 September 2017

Full-selective protection strategy for MTDC grids […] DC circuit breakers

Mainly used in AC grids, Resistive-type (R-type) Superconducting Fault Current Limiters (SFCL) may be still…
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Publications

13 September 2017

Technical and economic analysis of the R-type SFCL […] in HVDC grids

A novel protection strategy for multi-terminal high voltage direct current (HVDC) grids based on the…
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Publications

13 September 2017

A Review of Modular Multi-Level Converter (MMC) Modeling for HVDC Application

Hysteresis modelling of a medium frequency single-phase transformer

The article describes a feedback Preisach hysteresis model equivalent circuit implementation of a medium frequency…
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HVDC Cable Systems

23 August 2017

EPF 2017 “Influence of size distribution […] high voltage epoxy insulators”

Epoxy resins crosslinked with acid anhydride hardeners are widely used in high voltage insulation. They…
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Power Electronics & Converters

23 August 2017

APEC 2017 “Robustness of SiC MOSFET under Avalanche Conditions”

This paper presents the experimental evaluation of SiC MOSFETs from different manufacturers operated in avalanche.
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HVDC Cable Systems

21 July 2017

PhD Justine BILLORE “Thermal aging of XLPE for HVDC cables”

To connect the different points of the network, the transmission and distribution of electric power…
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Publications

5 July 2017

SimHydro 2017: Choosing the right model in applied hydraulics

This paper focuses on the set up and the validation of a numerical model for…
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Publications

4 July 2017

Power Electronics and Applications (EPE’16 ECCE Europe)

The paper presents a tool for technical and economic assessment of offshore wind power connecting…
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Phd

3 July 2017

PhD Ilyas DCHAR “Design of a “fail-to-short” power module for HVDC applications”

High Voltage Direct Current (HVDC) converters are composed of hundreds of semiconductor switches connected in…
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Phd

3 July 2017

PhD Albert PEREIRA “Design methodology of a medium frequency transformer for high voltage and high power DC-DC converters”

The transmission and distribution of electric power is normally made by ac networks (50 Hz…
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High Voltage Substation Equipment

16 June 2017

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

FastGrid is a project funding for an amount of 7.2 M€ by the European Union’s…
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High Voltage Substation Equipment

14 June 2017

Space charge measurements on cable dielectrics

When a voltage is applied to a cable, electric charges are established in its electrodes,…
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Unclassified

14 June 2017

The EE4HVS Mastère program

Globally, the energy landscape is shifting; the generation of electricity is moving towards greener energies,…
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Power Electronics & Converters

14 June 2017

DC-DC Converters for HVDC Grids: A Survey

The recent interest in renewable energies has encouraged the research on a new concept of…
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HVDC Cable Systems

16 February 2017

Toward deeper submarine cable installations

Numerous High Voltage Direct Current (HVDC) submarine cables have been installed in Europe and more…
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High Voltage Substation Equipment

31 January 2017

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

SULPHUR hexafluoride, SF6, is the most common compressed gas used in high voltage power equipment…
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Stabilization & Storage

23 January 2017

TM1 test rig renovation

Why do we stil need experimental test-rigs in hydraulic sciences? We use extensively computatinal sciences…
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Conference

18 January 2017

SGI participation to IAHR Conference

The International Association for Hydro-Environment Engineering and Research (IAHR), founded in 1935, is a worldwide…
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Conference

18 January 2017

SGI participation to European Power Electronics Conference (ECCE Europe, EPE2016)

EPE ECCE Europe is the largest conference on power electronics and its applications. SuperGrid Institute…
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Funding

18 January 2017

SuperGrid Institute Part of H2020 European Project PROMOTioN

PROMOTioN is a 4 years project starting January 2016, with a 40 M€ EU funding,…
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Supergrid Architecture & Systems

3 January 2017

A platform for real time modelling & simulation of HVDC electricity systems

Supergrid Institute is deploying real-time modelling and simulation facilities applied to the analysis of emerging…
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Supergrid Architecture & Systems

3 January 2017

A platform for real time modelling & simulation of HVDC electricity systems

Supergrid Institute is deploying real-time modelling and simulation facilities applied to the analysis of emerging…
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High Voltage Substation Equipment

1 December 2016

Surface charge measurement on epoxy spacer in HVDC GIS/GIL in SF6

The design of reliable high voltage equipment remains a challenge nowadays. The surface charge accumulation…
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High Voltage Substation Equipment

1 December 2016

Development of a Space Charge Measurement Method Applied to HVDC GIS Spacers

The development of HVDC networks leads to an increasing need of Gas Insulating Substations (HVDC-GIS).…
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High Voltage Substation Equipment

1 December 2016

Creeping Discharge and Flashover of Solid Dielectric in Air at Atmospheric Pressure

This paper is aimed at the study of the propagation of discharge at the surface…
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High Voltage Substation Equipment

1 December 2016

CEIDP 2016 Toronto – Fluoronitriles / CO2

This paper is aimed at the comparison of breakdown voltages of SF6 and mixtures at…
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High Voltage Substation Equipment

1 December 2016

Fluoronitriles/ CO2 gas mixture as promising substitute to SF6 for insulation in high voltage applications

This paper is aimed at the breakdown characteristics of Fluoronitriles – CO2 gas mixtures in…
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High Voltage Substation Equipment

1 December 2016

Creeping Discharge and Flashover of Solid Dielectric in Air at Atmospheric Pressure

This paper is aimed at the study of the propagation of discharge at the surface…
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HVDC Cable Systems

18 November 2016

Dielectric behaviour of a new grade of cross-linked polyethylene for HVDC cables

In order to ensure the energy transmission from remote production stations to load centres, it…
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HVDC Cable Systems

18 November 2016

Dynamic of partial discharges in cavities in a MV AC cable under DC conditions

In order to ensure the energy transmission from remote production stations to load centres, it…
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Publications

19 October 2016

CFD Investigation of Complex Phenomena in S-Shape Region of Reversible Pump-Turbine

Pumped Storage Plants (PSP) using reversible pump-turbines offer the possibility to store large amounts of…
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Stabilization & Storage

14 September 2016

The rise of variable speed Pump Storage Plant (PSP)

Pumped Storage Plants (PSP) are the most reliable and well-known energy storage technology for high…
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Power Electronics & Converters

23 August 2016

APEC 2017 “Robustness of SiC MOSFET under Avalanche Conditions”

This paper presents the experimental evaluation of SiC MOSFETs from different manufacturers operated in avalanche.…
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High Voltage Substation Equipment

5 August 2016

Leakage Current Measurements in Direct Current Gas Insulated Substations Equipment

Charge accumulation on solid insulator in Gas Insulated Substation (GIS) is one of the major…
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Power Electronics & Converters

14 June 2016

DC-DC Converters for HVDC Grids: A Survey

The recent interest in renewable energies has encouraged the research on a new concept of…
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Power Electronics & Converters

21 April 2016

A Preliminary Loss Comparison of Solid-State Transformers in a Rail Application Employing Silicon Carbide (SiC) MOSFET Switches

The silicon carbide (SiC) power semiconductor and the medium frequency transformer (MFT) are two enabling…
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High Voltage Substation Equipment

12 January 2016

Barrier effect on Surface Breakdown of Epoxy Solid Dielectric in SF6 with Various Pressures

This paper is aimed at the experimental study of creeping discharges and flashover of cylindrical…
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High Voltage Substation Equipment

18 November 2015

Time constant evaluation of transient AC – DC field distribution

HVDC (High Voltage Direct Current) technology is particularly suitable for the transmission of high-power energy…
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High Voltage Substation Equipment

18 November 2015

Surface Flashover of Solid Insulator in Air

This paper is aimed at the propagation of discharges over a surface of insulator and…
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High Voltage Substation Equipment

18 November 2015

Simulation methodology for DC GIS

Dimensionning of DC isulation is relatively complexe and need to take into account must more…
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Conference

13 November 2015

Best Conference Paper Award, EPEC 2015

In the future, Medium Frequency Transformers (MFT with a frequency range 5 kHz to 100…
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Power Electronics & Converters

6 November 2015

DC-DC 100 kW power converter

SuperGrid Institute has succeeded in the preliminary tests on their first DC-DC power converter in…
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Event

6 November 2015

Signature of convention with The French National Research Agency (ANR)

Michael Matlosz, President and CEO of The French National Research Agency (ANR) et Philippe Auriol,…
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High Voltage Substation Equipment

11 September 2015

Load transfer capabilities of GIS disconnectors for DC grids

The paper focuses on the role of disconnectors for load transfer duties in the operation…
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High Voltage Substation Equipment

11 June 2015

Designing the Vacuum Interrupter for Applications ≥ 72.5 kV

In view of the increasing global market for high voltage (HV) vacuum circuit breakers in…
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HVDC Cable Systems

1 April 2015

Study of the Thermal Ageing of the XLPE for HVDC Applications

Electricity networks of the future are moving towards supergrid networks. These networks will use HVDC…
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Funding

3 January 2015

European Commission Press Release

The European Commission has approved the 86.6 M€ french grant to the "SuperGrid Institute".
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Research Programs

SUPERGRID ARCHITECTURE & SYSTEMS

HIGH VOLTAGE SUBSTATION EQUIPMENT

POWER ELECTRONICS & CONVERTERS

HVDC CABLE SYSTEMS & JUNCTIONS

STABILIZATION & STORAGE

Services

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Services & Expertise

Innovations

& Technology transfer

Learning

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With the support of

SUPERGRID
ARCHITECTURE & SYSTEMS

HIGH VOLTAGE
SUBSTATION EQUIPMENT

POWER ELECTRONICS
& CONVERTERS

HVDC CABLE SYSTEMS
& JUNCTIONS

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& STORAGE