Supergrid Institute

Centre National De La Recherche Scientifique

Centralesupelec

Alstom

Université Grenoble Alpes

Institut Polytechnique De Grenoble

Université Paris-Saclay

Universite Paris-suclay

Bruno Luscan

Abdelkrim Benchaib

Alberto Bertinato

Françoise Lamnabhi-Lagarrigue

Valentin Costan

Gilney Damm

Bertrand Raison

Pascal Tixador

Juan Carlos Gonzales

William Leon Garcia

Christophe Creusot

Kosei Shinoda

Jing Dai

Xavier Guillaud

Michel Nauche

Olivier Grejon

Juan Carlos Gonzalez

Alain Libaud

A method for controlling an electrical transmission network including a plurality of DC high-voltage lines and at least three AC/DC converters identified by a respective index i. For each of the converters having index i, the method includes recovering the setpoint active power value Pdci applied thereto, and recovering instantaneous voltage value Vi and voltage angle value θi of the buses having index i and modifying the setpoint active power Pdci of each of the converters having index i by a value including a term ΔPdcsi as a function of a sum of deviations of voltage angles multiplied by contribution adjustment parameters.

Method for controlling an electrical transmission network

A method for controlling an electrical transmission network including a plurality of DC high-voltage lines and at least three AC/DC converters which are identified by a respective index i and are interconnected by the DC high-voltage lines. Each of the AC/DC converts are connected to an AC voltage bus identified by a respective index i as well as to one of the DC high-voltage lines.

Disclosed is a device for controlling a terminal connected in a multi-terminal high-voltage direct current transmission facility, the terminal being able to provide or draw power on the DC part of the facility comprised between an upper power limit and a lower power limit, the device further comprising at least one regulation circuit configured to vary the power provided or drawn by the terminal on the DC part of the facility, as a function of a voltage variation on the DC part of the facility, the device further comprising a limitation circuit configured to limit the variation of the power provided or drawn by the terminal, for a given voltage variation, when the power difference between the power provided or drawn by said terminal and the upper power limit or the lower power limit becomes smaller than a determined value.

Device for controlling a terminal for the compensation of a voltage disturbance

The invention relates to a method for controlling an electrical transmission link () between first and second AC voltage buses () comprising a high-voltage DC line (), first and second AC/DC converters () connected to the high-voltage DC line (), comprising:

Method for controlling an electrical transmission link including a direct current high voltage line

A method of protecting a high-voltage network comprising the steps for maintaining first controlled switches closed and second controlled switches open; measuring voltage and current on high-voltage interfaces; communicating the direction of the current to the other end of a high-voltage line; for each node: identifying a fault; verifying that the current is lower than the current interruption capability of the high-voltage interface switch and opening this switch.

Protection for an HVDC network

An item of interconnection equipment for a high-voltage DC grid includes first and second terminals for connection to first and second lines of a high-voltage DC grid, a third terminal for connection to a local station or a line of the high-voltage grid, a node connected to the first to third terminals, a first superconductor current limiter and a first controlled switch connected in series between the first terminal and the node, a second superconductor current limiter and a second controlled switch connected in series between the second terminal and the node, a third superconductor current limiter and a third controlled switch connected in series between the third terminal and the node, and a current injector configured to inject an electrical current into the node.

Interconnection equipment for a high-voltage DC grid

A current-breaking device for high-voltage direct current includes a main conduction-line and a secondary conduction-line connected in parallel between its terminals. The main conduction-line comprises a first controlled-switch and a circuit connected in series. The circuit comprises a first current-limiter and a first capacitor connected in parallel. The secondary conduction-line comprises a second controlled-switch. These conduction lines cooperate to form an oscillating circuit that oscillates with an amplitude that is at least equal to limiting current passing through the current limiter.

High voltage DC current tripout device

A circuit-breaker including a first tube, and a second tube coaxial to the first tube, the first and second tubes being connected together via a piston provided with perforations and equipped with a valve member, the first tube having an end connecting to said piston, a moving arcing contact support being fixed rigidly to said piston on the other side from the first tube, wherein, with said piston having a bore of diameter D, said piston is provided with a groove, that end of said first tube which is connected to said piston being provided with n gaps allowing n claws to project, the end of at least one of the claws being provided with a rim that is received in said groove in said piston, said piston being provided with one or more passageways angularly in register with each claw provided with a rim, and making it possible for the rim(s) to be inserted axially as far as said groove, and then for the tube to be turned to cause the rim to penetrate into the groove portions that remain, and wherein said arcing contact support is provided with n gaps and with n claws that are complementary to the gaps and claws of said first tube, the claws of said arcing contact support fitting into and filing the gaps situated between the claws on said first tube.

Circuit-breaker including a moving assembly contained inside a casing filled with a dielectric gas under pressure

The single-phase circuit-breaker comprises at least one interrupting chamber formed by an insulating tube filled with an insulation gas, and it comprises at least one current transformer whose secondary is disposed in air around the primary at one end of the tube. The primary is at the high voltage electrical potential of the phase and is constituted by an annular metal support. The secondary is subjected to a high voltage electrical potential that is practically equal to the potential of the primary. The current transformer is thus integrated in the circuit-breaker, and the measurement electronics associated with the secondary can be located in air close to the secondary.

Growing community of inventors

Lyons, France

Bruno Luscan