Welcome to SuperGrid Institute - Shaping Power Transmission

13 November 2019

Phd Alexis FOUINEAU “Medium Frequency Transformers design methodologies for high voltage grids and railway grids”

Medium Frequency Transformers (MFT) are an innovative technology compared to low frequency transformers, with the…
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High Voltage Substation Equipment

29 October 2019

A DC voltage source for long term GIS testing designed by SuperGrid Institute

As part of its research, SuperGrid Institute studies the phenomena of partial discharge under DC…
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Power Electronics & Converters

24 October 2019

NPC assessment in insulated DC/DC converter topologies using SiC MOSFETs for Power Electronic Traction Transformer

Power electronic traction transformers (PETT) are multilevel AC/DC on-board converters, studied for railway applications to…
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Supergrid Architecture & Systems

22 October 2019

The renewables integration via HVDC grids

The large-scale integration of renewable electricity generation poses both structural, economic and management challenges. Among…
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High Voltage Substation Equipment

21 October 2019

Electric field computation for HVDC GIS/GIL spacer under superimposed impulse conditions

This paper evidences the influence of different parameters on the electric field on DC spacers…
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Phd

18 October 2019

Phd Guilherme DANTAS DE FREITAS “Development of a methodology for DC grid protection strategies comparison”

High Voltage Direct Current (HVDC) grids are considered a promising solution for problems faced by…
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Power Electronics & Converters

15 October 2019

3-phase medium frequency transformer for a 100kW 1.2kV 20kHz Dual Active Bridge converter

The article presents a three-phase Medium Frequency Transformer being a part of a 100kW 1.2kV…
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Power Electronics & Converters

15 October 2019

Cost-performance framework for the assessment of Modular Multilevel Converter in HVDC transmission applications

This article proposes a methodology of Cost-Performance Assessment (CPA) enabling the efficient cost evaluation required…
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Power Electronics & Converters

15 October 2019

Requirements for interconnection of HVDC links with DC-DC converters

The number of high voltage direct current (HVDC) links continue to increase over the years,…
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Power Electronics & Converters

15 October 2019

Assessment of the Impact of Split Storage within Modular Multilevel Converter

This paper deals with the opportunities to introduce split storage into an MMC. The analysis…
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Event

10 October 2019

SuperGrid Institute at “Fête de la Science”: come and discover the electricity network of tomorrow

The thinking caps are on this week at SuperGrid Institute with the “Fête de la…
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Event

10 October 2019

Ahmed Zama honored with the IEEE “Doctorate Laureate” for his thesis work

Every year the French chapter of IEEE Power & Energy Society (PES), in collaboration with…
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Publications

7 October 2019

Use of Unbalanced Insulation for the Limitation of Double-Pole Lightning Flashovers in Double Circuit HVDC Overhead Lines

Lightning studies are a critical part of any system involving overhead lines. As HVDC technologies…
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Event

1 October 2019

Stage dating is back at SuperGrid Institute!

Stage dating is back at SuperGrid Institute! Get your CV ready and come along to…
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Power Electronics & Converters

30 September 2019

Interest of using a micro-meter spatial resolution to study SiC semi-conductor devices by Optical Beam Induced Current (OBIC)

In this paper we present a new test bench called micro-OBIC used to characterized wide…
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Power Electronics & Converters

30 September 2019

Static and Switching Characteristics of 10 kV-class SiC BJTs and Darlingtons

This paper reports the device design, fabrication and characterisation of 10 kV-class BJT. Manufactured devices…
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Event

25 September 2019

The SuperGrid Institute girls are #1 in their category at the Inter-company Challenge!

This Tuesday, the 24th of September, the Villeurbanne Inter-company Challenge took place in Parc Miribel,…
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High Voltage Substation Equipment

6 September 2019

Liquid spray injection in the expansion volume of a CO2 high voltage circuit breaker

Most high voltage gas circuit breakers (HVCB) in operation use SF6 as the arc interruption…
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Conference

6 September 2019

The EPE flag handover at EPE’19, Genova: SuperGrid Institute takes the reins for EPE 2020 ECCE Europe in Lyon, France

At the closing session, Abdelkrim Benchaib, General Chairman of EPE’20, received the EPE flag, on…
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Power Electronics & Converters

2 September 2019

Power Hardware In-the-Loop validation of DC-DC power converter for offshore wind energy

he paper describes the development of a power converter small scale mock-up and a real…
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Power Electronics & Converters

2 September 2019

Influence of the operating frequency on DC-DC converters for HVDC grids

This paper proposes an analytical methodology that allows to assess rapidly the comparison of DC-DC…
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Publications

2 September 2019

Tuning of Droop Parameters Using Virtual Capacitor Control to Improve Voltage Dynamics

This paper proposes a new approach to tuning voltage droop parameters in an MMC-based multi-terminal…
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Publications

2 September 2019

Comparaison and assessment of implementation techniques for dynamics MMC type models

Modeling Modular Multilevel Converters requires a special attention due to the strong associations between the…
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High Voltage Substation Equipment

29 August 2019

Numerical modelling and influence of defects on space charges in epoxy resin under HVDC stresses

Space charge accumulation on High Voltage Direct Current Gas Insulated Substations can produce electrical field…
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High Voltage Substation Equipment

26 August 2019

Characteristics of creeping discharges along epoxy surface in fluoronitrile/co2 gas mixture under lightning impulse

This paper deals with creeping discharges propagating over solid insulator samples in presence of a…
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Power Electronics & Converters

8 August 2019

SuperGrid Institute PhD student awarded Fulbright scholarship to work at Virginia Tech

SuperGrid Institute is going global! Next week, Arthur Boutry will be crossing the Atlantic to…
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High Voltage Substation Equipment

25 July 2019

SuperGrid Institute hosts the 11th Quarterly review of NanocompEIM 2

Since October 2016, SuperGrid Institute has been involved in the NanocompEIM 2 project. The goal…
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All

18 July 2019

SuperGrid Institute collaborates with Edouard Branly School’s undergraduate students for their end of year project!

Last year, SuperGrid Institute signed a framework agreement with the Digital Department of Edouard Branly…
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Conference

12 July 2019

Michel MERMET-GUYENNET’s keynote speech at PEDS 2019

This Tuesday the 10th of July, Michel MERMET-GUYENNET presented a keynote speech at the 13th…
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All

9 July 2019

SuperGrid Institute’s participation at AGP21

The Association Grand Projects 21 – Major Programmes and Projects for the 21st Century (AGP21)…
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High Voltage Substation Equipment

5 July 2019

Phd Priscillia DANIEL “Electrical properties study of cross-linked polyethylene insulated cables in presence of gaseous cavities aged under DC or DC with harmonic voltages”

This study aims to examine possible impact of these harmonics in presence of microcavities. Depending…
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Event

28 June 2019

SuperGrid Institute’s has a significant presence at Jicable19

This year, for the first time our presence at PCIM Europe 2019, was noticeable with…
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All

26 June 2019

LISORE consortium plenary meeting at SuperGrid Institute

SuperGrid Institute was pleased to host the LISORE consortium plenary meeting this Wednesday. This 15-month…
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Event

26 June 2019

Raphaël CHASSAGNOUX received the best student presentation prize at IEEE ICDL 2019

Raphaël CHASSAGNOUX received the best student presentation prize for his « Prebreakdown and Breakdown in…
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High Voltage Substation Equipment

26 June 2019

Electro-thermal simulation methodology for HVDC cable GIS termination

This paper presents a simulation methodology that can be used to evaluate the electric stresses…
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HVDC Cable Systems

26 June 2019

Follow up of space charge distributions in HVDC cable during a Pre-Qualification test using the Pulse ElectroAcoustic technique and the Thermal Step Method

In order to better understand the evolution of space charge and electric field distortions during…
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Publications

25 June 2019

Pole-to-ground fault protection strategy for HVDC grids under symmetrical monopolar configuration

An experimental study of breakdown and pre-breakdown phenomena in liquid nitrogen (LN2) is performed in…
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High Voltage Substation Equipment

25 June 2019

Prebreakdown and Breakdown in Liquid Nitrogen under Pulsed Heating for Superconducting Applications

An experimental study of breakdown and pre-breakdown phenomena in liquid nitrogen (LN2) is performed in…
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High Voltage Substation Equipment

25 June 2019

Development and Set-up of a Non-intrusive Technique for measuring Space Charges in Specimens of dc cables

This paper presents a procedure for designing a power converter to produce power pulses in…
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HVDC Cable Systems

24 June 2019

HVDC dielectric material comparison from cable characterizations as a mean for material selection

The present paper aims at describing the measurement methods applied to mock-up cables in order…
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High Voltage Substation Equipment

18 June 2019

SuperGrid Institute involved with the National Congress of Dielectric Spectroscopy

The national congress of dielectric spectroscopy (SDM2) took place at LyonTech on the 6th and…
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Publications

18 June 2019

Effect of the Surge Arrester Configuration in MMC-HVDC Systems under DC and Converter Fault Conditions

Different surge arrester configurations are studied for a modular multilevel converter (MMC) in a symmetrical…
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Event

7 June 2019

SuperGrid Institute takes up the Mobility Challenge

Every year, the Auvergne-Rhône-Alpes region organises the Mobility Challenge, an event that promotes using alternative…
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Power Electronics & Converters

7 June 2019

Case Study of Non-Isolated MMC DC-DC Converter in HVDC Grids

This article presents the topology for non-isolated MMC-based DC-DC converter. The initial design study illustrates…
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High Voltage Substation Equipment

6 June 2019

Comparaison de mesures de conductivité obtenues par spectroscopie diélectrique et mesure de courant sous tension continue sur une résine époxy

De par sa facilité d’utilisation et sa capacité à isoler la permittivité complexe représentant les…
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Publications

22 May 2019

SuperGrid Institute’s participation in PROMOTioN’s Work Package 9

SuperGrid Institute is proud to have been an active participant in the PROMOTioN project since…
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Power Electronics & Converters

21 May 2019

Structural Analysis and Modular Control Law for Modular Multilevel Converter (MMC)

This paper proposes an in-depth analysis from the control point of view of dynamic models…
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Event

17 May 2019

SuperGrid Institute, sponsor of InnoGrid 2019

This week, SuperGrid Institute participated as an official sponsor of the 8th edition of InnoGrid2020+,…
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Event

13 May 2019

SuperGrid Institute at PCIM Europe 2019

This year, for the first time our presence at PCIM Europe 2019, was noticeable with…
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Power Electronics & Converters

9 May 2019

Power electronic traction transformers in 25 kV / 50 Hz systems: Optimisation of DC/DC Isolated Converters with 3.3 kV SiC MOSFETs

In AC electric trains, power electronic traction transformers (PETT) are multilevel single phase AC/DC converters…
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Event

6 May 2019

Relive the SuperGrid Institute inauguration

If you would like to re-live your day with us, or if you were unable…
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High Voltage Substation Equipment

24 April 2019

A New Energy Management Control of Modular Multilevel Converters for Coping with Voltage Stress on Sub-Modules

This paper investigates the impact of the operating condition on the SM voltage ripples. In…
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Conference

24 April 2019

SuperGrid Institute presents a brilliant innovation at CIGRE-IEC 2019 in Japan

The Energy Management Control of MMC by SuperGrid Institute was presented in Japan this week…
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Event

9 April 2019

SuperGrid Institute’s head office & platforms are fully operational!

Nearly 150 people gathered together on Monday the 8th of April to inaugurate SuperGrid Institute’s…
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Press release

5 April 2019

SuperGrid Institute, SME Patent Superstar of 2018

SuperGrid Institute has been rewarded for its ambitious intellectual property strategy, ranking first of the…
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High Voltage Substation Equipment

2 April 2019

PhD Loriane DESMARS “Study of electrical and thermal properties of epoxy-anhydride composite materials for high voltage insulation”

The work presented in this manuscript has been motivated by the necessity to develop more…
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Phd

25 February 2019

Phd Caroline STACKLER “Electronic transformers for railway applications”

The main objective of this thesis is to develop a methodology to size PETT topologies,…
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Power Electronics & Converters

19 February 2019

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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Phd

13 February 2019

PhD Amjad MOUHAIDALI “Contribution to the modelling of HVDC cables for electromagnetic transient simulations”

The integration of new technologies in the electric grids made them more and more complex,…
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Publications

8 February 2019

Fault behaviour of bipolar overhead line based HVDC grids

This paper provides a fault analysis of bipolar overhead line based HVDC grids using HB-MMC…
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Publications

7 February 2019

FMEA of a non-selective fault-clearing strategy for HVDC grids

The Failure Mode Effect Analysis (FMEA) is a technique used to investigate failures in a…
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Power Electronics & Converters

7 February 2019

Study of the impact of DC-DC converters on the protection strategy of HVDC grids

This paper studies the role of DC-DC converters in the protection of HVDC grids acting…
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Publications

7 February 2019

Power system stability enhancement via VSC-HVDC control using remote signals: Application on the Nordic 44-bus test system

In this paper the benefits of embedded VSC-HVDC links with supplementary controls for small-signal stability…
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Phd

29 January 2019

PhD Juan-Carlos GONZALEZ “Transient stability of high voltage AC-DC electric transmission systems”

This thesis addresses the transient stability analysis of hybrid AC/DC electric transmission systems. More precisely…
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All

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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Power Electronics & Converters

20 December 2018

Modelling of a 25 kV-50 Hz railway infrastructure for harmonic analysis

This paper presents a methodology for the modelling of a 25 kV-50 Hz railway infrastructure,…
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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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Publications

15 October 2018

HVDC protection criteria for transient stability of AC systems with embedded HVDC links

The objective of this study is to propose a methodology for the transient stability assessment…
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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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Publications

26 September 2018

AC Grid Forming by Coordinated Control of Offshore Wind Farm connected to Diode Rectifier based HVDC Link-Review and Assessment of Solutions

This paper reviews a few of the major control solutions for AC grid forming and…
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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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Publications

21 September 2018

Analysis of the Lower Limit of Allowable Energy in Modular Multilevel Converters

In this paper, a thorough analysis of the converter arm behavior is presented, which gives…
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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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Power Electronics & Converters

6 September 2018

Advanced Electrical characterisation of high voltage 4H-SiC PiN diodes

This paper reports the design, the processing, the static characterisation, the switching behaviour and the…
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Power Electronics & Converters

6 September 2018

Repetitive short-circuit measurement on SiC MOSFET

A robustness study for 1.7 kV SiC MOSFETs is presented in this article. After evaluation…
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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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Publications

31 August 2018

Development of a protection strategy for future DC networks based on low-speed DC circuit breakers

This paper presents a novel protection scheme based on converter breaker; its key element, namely…
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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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Publications

15 March 2018

Assessment methodology and performance indicators for HVDC grid protection strategies

This paper presents an assessment methodology of protection strategies for meshed grids. It also proposes…
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Publications

15 March 2018

Protection strategy for MTDC grids using SFCLS at converter station output

This study proposes a non-selective protection strategy for multi-terminal high voltage direct current grids based…
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Power Electronics & Converters

22 February 2018

Measurement and Analysis of SiC-MOSFET threshold voltage shift

Silicon carbide power MOSFETs are used in numerous studies to improve the efficiency or 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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Publications

21 February 2018

Evaluation of HVDC cable impedance and admittance matrices by finite element method

In this work, a 2D Finite Element Method (FEM) is used to calculate the frequency…
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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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Power Electronics & Converters

15 February 2018

Robustness study of 1700 V 45 mΩ SiC MOSFETs

The threshold voltage instability is a main reliability issue of Silicon Carbide MOSFET transistors. It…
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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

21 October 2017

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

Mainly used in AC grids, resistive type superconducting fault current limiters may be still more…
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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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Phd

13 October 2017

Phd Ahmed ZAMA “Modeling and Control of Modular Multilevel Converters (MMCs) for HVDC applications”

Common understanding today is that the challenges to develop the SuperGrid are huge at many…
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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

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

13 September 2017

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

Mainly used in alternating current (AC) grids, the superconducting fault current limiters (SCFCL) are still…
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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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