Technologies

Comprehensive list of our patents & technologies

Dedicated to creating value from our expertise, testing facilities and intellectual property, SuperGrid Institute is driving research to meet market needs by developping technologies for the energy grid of the future.

Once you have selected one of our technologies, we provide support throughout the maturation process before proceeding to the final technology transfer phase.

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Comprehensive list of our patents & technologies

High Voltage Components

Accurate estimation of Very Fast Transient Overvoltages (VFTO) in GIS substations.

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High fidelity rational fitting of frequency transfer function with time delay, ensuring model passivity.

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Development and dimensioning of HVDC GIL and GIS requires deep knowledge on electric field distribution in the gas/solid insulating systems.

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Development and dimensioning of HVDC GIL and GIS requires deep knowledge on electric field distribution in the gas/solid insulating systems.

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For series connected devices.

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High Voltage Converter & Control

Evaluating the impact of embedded DC grids.

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Assessment of existing solutions, proposition of enhanced grid forming control and umbilical cable free black start strategy.

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AC-DC system stability control.

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Converter stations coordination principles.

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Fast, precise and robust arm currents control.

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Pipelined bitonic sorting implemented on FPGA.

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Simple device adaptable to any requirement in terms of current and voltage reversibility.

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A novel concept for DC Grid Stabilization.

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Real-time calculation of available energy.

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Generic solution for interline PFC devices embedded in HVDC grids.

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Over & Under Voltage Containment Reserves.
Optimal Primary Voltage Control and Voltage Droop Parameter Selection.

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The proposed control law uses some symmetry properties of the MMC to simplify and distribute the control algorithm.

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The work was focused on  the development of a working control law for series bridge converter.

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Modelling, control and simulations of dc/dc converters.

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The proposed solution consists in controlling the converter to make the HV current going to zero and using a switch.

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A novel distributed supplementary control of MTDC grids for static and dynamic stability enhancement of AC/DC systems, aiming to minimize the interaction with the DC voltage.

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This study helps to design embedded ES-SMs in the converter to provide new functions like ancillary services for power system operation.

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Based on discrete event systems theory and classification of operational states.

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Reconfiguration device for basic Power Flow Controllers to reach all operating areas.

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A solution to enhance the maintenance of the submodule.

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The proposed circuit is based on a “Flyback” type architecture, incorporating the self-starting principle of the power switch control circuit.

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High Voltage Breaking &Protection

A robust DC grid protection strategy at an affordable cost.

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A novel strategy for HVDC bipole and asymmetrical monopole line fast re-energizaton using half-bridge MMC internal energy.

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An adaptation of the strategy for HVDC lines fast re-energization using half-bridge MMC internal energy for symmetrical monopoles.

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Converter stations coordination principles.

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Symmetric monopole HVDC fault management.

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Feasibility, performance and risk evaluation methods and tools.

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Direct Current Circuit Breaker (DCCB) is a device which interrupts the Direct Current and eliminates a fault in a High Voltage transmission network or Medium Voltage distribution network.

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Cost-efficient HVDC grid protection strategy for networks combining cable and overhead lines

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Ultra-fast single ended protection scheme based on travelling waves.

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Medium Voltage Systems

Package “ Medium Frequency Transformers”.

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A cost-optimised solution to interface the controller.

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Simple device adaptable to any requirement in terms of current and voltage reversibility.

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Partial discharges and breakdown voltage measurements.

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Based on discrete event systems theory and classification of operational states.

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Real-time calculation of available energy.

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Software framework for cost effective design and simulation.

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The proposed circuit is based on a “Flyback” type architecture, incorporating the self-starting principle of the power switch control circuit.

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A prototype of a Novec 649 diphasic thermosiphon have been developed to demonstrate principle of operation.

Direct Current Circuit Breaker (DCCB) is a device which interrupts the Direct Current and eliminates a fault in a High Voltage transmission network or Medium Voltage distribution network.

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Package “ Topology studies”.

Package “ Converter control”.

Package “Medium Frequency Transformer concept”.

Package “Power modules & Gate drivers”.

An solution to enhance the voltage whistand rating of commercial power modules.

Partial Discharge verification.

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Parallel RLC Resonator Circuit.

Package “PiN diodes”.

Medium Voltage Control & Protection

A robust DC grid protection strategy at an affordable cost.

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Ultra-fast single ended protection scheme based on travelling waves.

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The proposed method allows control of the converter output voltage through regulation of the input current, this control is accomplished by the combined input stage.

The proposed control law uses some symmetry properties of the MMC to simplify and distribute the control algorithm.

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Renewables

A cost-optimised solution to interface the controller.

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Partial discharges and breakdown voltage measurements.

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Software framework for cost effective design and simulation.

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The proposed circuit is based on a “Flyback” type architecture, incorporating the self-starting principle of the power switch control circuit.

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Package “Topology studies”.

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Transport

SuperGrid Institute has patented an active filtering solution, buffering the AC power generated by railway on-board converters supplying traction DC buses through a low frequency transformer and rectifiers.

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A cost-optimised solution to interface the controller.

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Partial discharges and breakdown voltage measurements.

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The proposed method allows control of the converter output voltage through regulation of the input current, this control is accomplished by the combined input stage.

The power electronic traction transformer (PETT) topology is composed of n cells connected in input in series and in output in parallel.

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Industry

A cost-optimised solution to interface the controller.

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Partial discharges and breakdown voltage measurements.

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Hydro

Innovative visualisation.

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Battery to power the dead bands of hydraulic turbines.

S-shape calculation time reduction.

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S-shape calculation time reduction.

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Access new energy markets with a hybrid pump-turbine.