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1. WO2022003008 - POWER TRANSFER SYSTEM BETWEEN AN AC NETWORK AND A REVERSIBLE HYDRAULIC TURBINE

Publication Number WO/2022/003008
Publication Date 06.01.2022
International Application No. PCT/EP2021/067966
International Filing Date 30.06.2021
IPC
H02J 3/08 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
04for connecting networks of the same frequency but supplied from different sources
08Synchronising of networks
F03B 3/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
BMACHINES OR ENGINES FOR LIQUIDS
3Machines or engines of reaction type; Parts or details peculiar thereto
10characterised by having means for functioning alternatively as pumps or turbines
F03B 13/08 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
BMACHINES OR ENGINES FOR LIQUIDS
13Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
08Machine or engine aggregates in dams or the like; Conduits therefor
Applicants
  • SUPERGRID INSTITUTE [FR]/[FR]
Inventors
  • MESNAGE, Hugo
  • GUILLAUME, Renaud
  • LECLERE, Loïc
  • MOREL, Florent
  • ERRIGO, Florian
Agents
  • OPILEX
Priority Data
FR200685230.06.2020FR
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) POWER TRANSFER SYSTEM BETWEEN AN AC NETWORK AND A REVERSIBLE HYDRAULIC TURBINE
(FR) SYSTÈME DE TRANSFERT DE PUISSANCE ENTRE UN RÉSEAU À COURANT ALTERNATIF ET UNE TURBINE HYDRAULIQUE RÉVERSIBLE
Abstract
(EN) The invention relates to a power transfer system (1), comprising a first branch (4) comprising a controlled switch (41) and a second branch (8) comprising a variable frequency converter (5), in parallel between an AC network (2) and a reversible pump-turbine (3), the variable frequency converter (5) comprising : -a first AC/DC converter (11) having a first DC interface, and -a second AC/DC converter (12) having a second DC interface, the first and second DC interfaces being connected by a DC link (13), -a control circuit (7) having a first mode wherein it simultaneously opens the switch (4) and it transfers electrical power until it reaches the same frequency on two AC interfaces (61, 62), and having a second mode wherein it closes the switch (4) of the first branch (41); -an energy storage system (14); -a switching system (15) for selectively connecting the energy storage system (14) to the DC link (13).
(FR) L'invention concerne un système de transfert de puissance (1), comprenant une première branche (4) comprenant un commutateur commandé (41) et une seconde branche (8) comprenant un convertisseur de fréquence variable (5), en parallèle entre un réseau alternatif (2) et une turbine-pompe réversible (3), le convertisseur de fréquence variable (5) comprenant : - un premier convertisseur CA/CC (11) ayant une première interface CC, et - un second convertisseur CA/CC (12) ayant une seconde interface CC, les première et seconde interfaces CC étant connectées par une liaison CC (13), - un circuit de commande (7) ayant un premier mode dans lequel il ouvre simultanément le commutateur (4) et transfère de l'énergie électrique jusqu'à ce qu'il atteigne la même fréquence sur deux interfaces CA (61, 62), et ayant un second mode dans lequel il ferme le commutateur (4) de la première branche (41) ; - un système de stockage d'énergie (14) ; - un système de commutation (15) pour connecter sélectivement le système de stockage d'énergie (14) à la liaison à CC (13).
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