WO2024037695A1 - Protection contre les surtensions d'un électrolyseur dans une éolienne - Google Patents

Protection contre les surtensions d'un électrolyseur dans une éolienne Download PDF

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Publication number
WO2024037695A1
WO2024037695A1 PCT/DK2023/050195 DK2023050195W WO2024037695A1 WO 2024037695 A1 WO2024037695 A1 WO 2024037695A1 DK 2023050195 W DK2023050195 W DK 2023050195W WO 2024037695 A1 WO2024037695 A1 WO 2024037695A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
electrolyzer
electrolyzer system
wind turbine
internal grid
Prior art date
Application number
PCT/DK2023/050195
Other languages
English (en)
Inventor
Daniel Kirkebye KAPPELGAARD
Niels Erik Danielsen
Søren Lund BJERREGAARD
Morten Bagger SØGAARD
Original Assignee
Vestas Wind Systems A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vestas Wind Systems A/S filed Critical Vestas Wind Systems A/S
Publication of WO2024037695A1 publication Critical patent/WO2024037695A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/19—Combinations of wind motors with apparatus storing energy storing chemical energy, e.g. using electrolysis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/61—Application for hydrogen and/or oxygen production
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/107—Purpose of the control system to cope with emergencies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy

Definitions

  • the invention relates to renewable power plants, particularly to renewable power plants comprising wind turbines and electrolyzers.
  • Renewable power plants such as wind power plants may be combined with electrolyzers for production of hydrogen. This combination may be advantageous since electrical power from the power plant may be used to produce hydrogen. Furthermore, a location of electrolyzers at the location of the renewable power plant may be an advantage compared to a remote location in view of installation costs such as installation costs for electrical grid installations to a remote location and to minimize transmission losses.
  • a method for operating a renewable power plant comprising at least one wind turbine and an electrolyzer system connected with a grid via an internal grid is presented, wherein the method comprises
  • a wind turbine is used to reduce the voltage at the electrolyzer system since wind turbines already have over voltage means installed to handle over voltages in the grid or the internal grid. In this way, the electrolyzer system does not need to be configured with such over voltage means.
  • the compensation action may comprise controlling the at least one wind turbine to reduce an amount of power supplied to the internal grid.
  • the amount of power mainly active power and thereby the current amplitude
  • the currents from the at least one wind turbine and electrolyzer transformer can be coordinated to give an appropriate voltage drop on the internal grid.
  • the reduction of the power supplied to the internal grid may be performed for a period long enough for completing the mechanical operation of a switchgear, i.e. a circuit breaker, to disconnect the electrolyzer system from the internal grid.
  • a switchgear i.e. a circuit breaker
  • the electrolyzer system is arranged to be powered via the internal grid. Therefore, the electrolyzer system may be powered via power from the wind turbines or power from the grid.
  • the controlling of a wind turbine to reduce an amount of power supplied to the internal grid comprises reducing power generation.
  • the wind turbine can be controlled by reducing a power setpoint for the desired power production, e.g. during a short period of time.
  • the controlling of a wind turbine to reduce an amount of power supplied to the internal grid comprises dissipating power produced by the at least one wind turbine in at least one dump load comprised by the at least one wind turbine.
  • controlling of a wind turbine to reduce an amount of power supplied to the grid comprises a combination of reducing power generation and power dissipation wherein the power reducing actions may be performed simultaneously or within different overlapping or non-overlapping time periods.
  • the method comprises monitoring a duration of the overvoltage condition and electrically disconnecting the electrolyzer system from the internal grid dependent on the duration of the over voltage condition.
  • the timer based disconnection of the electrolyzer system provides a secondary protection of the electrolyzers, e.g. in case the other actions for reducing the voltage has not been effective or in case the other actions have not been invoked.
  • the disconnection may be generated if the duration exceeds a period within a range from 10-100 ms.
  • the electrolyzer system comprises an auxiliary over voltage protection system arranged on a low voltage side of a transformer connected to the internal grid on its high voltage side, wherein the auxiliary over voltage protection system is arranged to clamp the voltage at the low voltage side, wherein the duration of the overvoltage condition is monitored while clamping the voltage at the low voltage side.
  • the voltage clamping assists in bringing the voltage on the internal grid down. Accordingly, if the over voltage situation persists even with the claiming circuit activated, this indicates a severe over voltage situation requiring a disconnection of the electrolyzer system.
  • the overvoltage condition is determined based on measuring a voltage at the low voltage side of the transformer.
  • a second aspect of the invention relates to a method for operating a renewable power plant comprising at least one wind turbine and an electrolyzer system connected with an electrical grid via an internal grid so that the electrolyzer system is electrically powered via the internal grid, wherein the electrolyzer system comprises an auxiliary over voltage protection system arranged on a low voltage side of a transformer connected to the internal grid on its high voltage side, wherein the auxiliary over voltage protection system comprises a clamping circuit arranged to clamp the voltage at the low voltage side, wherein method comprises,
  • a simple but effective over voltage protection may be achieved by simply disconnecting the electrolyzer system if the over voltage persists for a long enough time.
  • a third aspect of the invention relates to a renewable power plant comprising at least one wind turbine and an electrolyzer system, wherein the at least one wind turbine and the electrolyzer system are connectable with an electrical grid via an internal grid, and wherein the electrolyzer system is arranged to be electrically powered via the internal grid, wherein the renewable power plant comprises - a voltage detector arranged to detect an overvoltage condition relating to a voltage level at a power input of the electrolyzer system,
  • - communication means arranged to send a warning signal to the at least one wind turbine in response to detecting the overvoltage condition
  • At least one controller arranged to control the at least one wind turbine to perform a compensation action for lowering the voltage level at the power input of the electrolyzer system in response to receiving the warning signal.
  • the at least one controller may comprise the power plant controller or other central relay controller arranged to receive the warning signal and control or inform the at least one wind turbine to perform the compensation action.
  • the warning signal may be sent directly via the communication means, e.g. communication means arranged with the voltage detector to a controller of the at least one wind turbine arranged for performing the compensation action.
  • the electrolyzer system comprises an electrolyzer, a converter arranged to convert an AC voltage at the power input of the electrolyzer system into a DC voltage for powering the electrolyzer, a circuit breaker arranged to electrical disconnect the converter from the internal grid, wherein the circuit breaker is controllable to disconnect the electrolyzer system from the internal grid dependent on a duration of the over voltage condition.
  • the electrolyzer system comprises an auxiliary over voltage protection system electrically connected to a low voltage side of a transformer which is electrically connected to the internal grid on its high voltage side, wherein the auxiliary over voltage protection system comprises
  • a voltage detector arranged to monitor a voltage at the low voltage side for determining the overvoltage condition
  • - a timer arranged to determine the duration of the over voltage condition.
  • a fourth aspect of the invention relates to a computer program comprising instructions which, when the program is executed by a computer, causes the computer to carry out the method of the first and/or the second aspects.
  • Fig. 1 shows a renewable power plant including an electrolyzer system.
  • Fig. 1 shows a renewable power plant 100, or power plant 100 in short, such as a wind power plant which comprises one or more wind turbines 101.
  • the power plant 100 may additionally comprise other renewable power generating units such as solar power units 103 (e.g. photovoltaic solar panels).
  • solar power units 103 e.g. photovoltaic solar panels.
  • the power plant comprises only one wind turbine 101.
  • the power plant comprises a plurality of wind turbines 101.
  • the power plant 100 further comprises one or more electrolyzer systems 110.
  • Fig. 1 shows only one electrolyzer system 110.
  • the electrolyzer system 110 comprises an electrolyzer 113 configured to produce hydrogen through electrolysis.
  • Each electrolyzer system may comprise one or more electrolyzers.
  • a single wind turbine 101 is installed on foundation comprising a platform arranged above the sea level.
  • One or more electrolyzers 110 may be arranged on the platform.
  • the single wind turbine 101 comprising the electrolyzer system 110 may constitute a power plant 100 or a plurality of wind turbines 101, wherein one or more wind turbines comprises an electrolyzer system 110 arranged on e.g. platforms, may be comprised by the power plant 100.
  • the one or more wind turbines 101 and electrolyzer systems 110 are connected to the grid 190 via an internal grid 191.
  • the power plant 100 is connectable with the grid 190 for supplying power from the wind turbines 101 and possibly other power generating units to the grid.
  • the grid 104 can be any of a distribution grid, a transmission grid, a medium voltage network, a high voltage grid or other electrical grid.
  • the internal grid 191 may be an intermediate power network comprising a power line such as a medium voltage network.
  • the internal grid may be connected to the wind turbines 101 and electrolyzer systems 110 via transformers 192.
  • the electrolyzer system 110 further comprises an converter 111, e.g. an IGBT controlled converter, arranged to convert an AC voltage supplied via the internal grid 191 to a power input 114 of the electrolyzer system into a DC voltage.
  • the electrolyzer system 110 may also comprise a DC link 112 arranged to reduce ripple voltage.
  • the converter 111 such as a 4-quadrant converter may function as a controlled rectifier.
  • the electrolyzer system 110 may in an alternative example comprise a thyrister based converter/rectifier 111.
  • the electrolyzer system 110 is electrically powered via power from the internal grid 191 which may originate from the grid 190, the wind turbines 101 or both.
  • the electrolyzer system 110 is connected to the internal grid 191 via a controllable a circuit breaker 121 arranged to electrically disconnect the converter 111 and thereby the electrolyzer 113 from the internal grid.
  • the wind turbines 101 may be connected to the internal grid 191 via similar controllable circuit breakers 122.
  • Fig. 1 shows that the electrolyzer circuit breaker 121 and the wind turbine circuit breakers 122 are located on the low voltage sides of the transformers 192.
  • one or more of the circuit breakers 121, 122, particularly when they are configured as switch gears, may be located on the high voltage side of the transformers 192.
  • the internal grid and thereby the wind turbines 101 and the electrolyzer system 110 is connectable with the grid 190 via a grid circuit breaker 123 such as a common circuit breaker located at or in the vicinity a point of common coupling PCC.
  • the common coupling PCC constitute a point within the internal grid 191 to which the circuit breaker and the wind turbines 101 and the electrolyzer system 110 are connected.
  • the power plant 100 may comprise a central controller 170, or the power plant controller 170 may be located externally to the power plant 100.
  • the central controller 170 is arranged to control power generation from the wind turbines 101 according to a power plant reference which defines the desired power to be supplied to the grid.
  • Each wind turbine 101 may comprise a tower and a rotor with at least one rotor blade, such as three blades.
  • the rotor is connected to a nacelle which is mounted on top of the tower and being adapted to drive a generator situated inside the nacelle.
  • the rotor is rotatable by action of the wind.
  • the wind induced rotational energy of the rotor blades is transferred via a shaft to the generator.
  • the wind turbine is capable of converting kinetic energy of the wind into mechanical energy by means of the rotor blades and, subsequently, into electric power by means of the generator.
  • the generator may include a power converter for converting the generator AC power into a DC power and a power converter for converting the DC power into an AC power to be injected into the electrical power grid.
  • the generator of the wind turbine 102 is controllable to produce power corresponding to power set-points provided by the central controller.
  • the output power may be adjusted according to the power set-point by adjusting the pitch of the rotor blades or by controlling the power converter to adjust the power production.
  • Electrolyzers 113 need to be protected against high voltages of their power supply. Since situations may occur where the grid voltage at the grid 190 or the voltage at the internal grid 191 increase above nominal levels, the power plant 100 should be configured to protect the electrolyzers against high voltages in such over voltage situations.
  • Some embodiments are based on utilizing existing functionalities of the wind turbines 101 to alleviate the over voltage situation by performing an action that may result in a reduction of the voltage level at the power input 114 of the electrolyzer system 110.
  • the electrolyzer system 110 may be configured with a voltage detector arranged to measure the voltage level at the power input 114 to detect an over voltage situation.
  • an auxiliary over voltage protection system 140 comprised by the power plant 100 or the electrolyzer system 110 may be configured with a voltage detector arranged to measure a voltage level corresponding to the voltage level at the input 114 of the electrolyzer system 110.
  • the over voltage protection system 140 is connected to the internal grid 191 via a transformer 131 with the low voltage side of the transformer 131 being connected to the over voltage projection system 140 and the high voltage side being connected to the internal grid 191.
  • the voltage detector of the over voltage protection system 140 is arranged on the low voltage side of the transformer.
  • a voltage detector comprised by a wind turbine 101, a voltage detector arranged to measure the voltage at the point of common coupling PCC, or other voltage detector comprised by the power plant 100 may be used to detect the over voltage situation relating to a voltage level at a power input 114 of the electrolyzer system. That is, although such voltage detectors may provide a voltage which differs from the actual voltage at the input 114 of the electrolyzer system 110, the provided voltage may at least correlate with the input voltage at the electrolyzer system and thereby provide valid information about a possible over voltage situation at the power input of the electrolyzer system.
  • a communication means such as a wired or wireless data transmitter sends a warning signal to one or more of the wind turbines 101.
  • the electrolyzer system 110 or the over voltage protection system 140 may comprise the communication means, and/or the communication means may be a communication circuit arranged in connection with the voltage detector arranged to detect the overvoltage condition.
  • each of the wind turbines that received the signal are configured to perform a compensation action for lowering the voltage level on the internal grid 191 and thereby at the power input 114 of the electrolyzer system 110.
  • a controller comprised by a wind turbine or a central controller 170 may be configured to control the wind turbine to perform the compensation action.
  • the warning signal is sent directly to one or more wind turbines and a controller of each wind turbine is configured to perform the compensation action.
  • the wind turbines are configured to reduce the amount of electrical power injected into the grid 190 by reducing the power generation.
  • the reduction of the power generation may be achieved by modifying the power setpoint and thereby controlling the wind turbine to lower its power production.
  • the reduced power production results in a reduction of the current injected into the grid 190 and thereby a reduction of the voltage on the internal grid 191 and the input 114 at the electrolyzer system 110.
  • each of one or more of the wind turbines can be controlled to reduce the amount of electrical power injected into the grid 190 by dissipating produced power produced in a dump load comprised by a wind turbine.
  • the dump load may be configured as a series connection of a resistor and switch which are arranged in parallel with the DC link of the power converter. Accordingly, the dump load can be activated by closing the switch in response to the warning signal.
  • existing components such as the dump load and/or existing control methods such as the power production control can be utilized for reducing the input voltage to the electrolyzer system 110, thereby rendering modifications of the electrolyzer system to lower the input voltage unnecessary.
  • the power plant 100 may be configured to electrically disconnect the electrolyzer system 110 from the internal grid based on a determination of a duration of the overvoltage condition.
  • the electrolyzer system 110 or the over voltage protection system 140 may comprise a means for determining the duration of the over voltage condition such as a timer or counter.
  • the compensation action for lowering the voltage level at the power input 114 of the electrolyzer system may be performed and if the voltage has not decreased to a sufficiently low level such as a predefined level, the electrolyzer system 110 may be disconnected if the over voltage situation has persisted long enough.
  • the electrolyzer system 110 may be disconnected if the over voltage situation has persisted long enough without initially performing the compensation action for lowering the input voltage to the electrolyzer system.
  • the disconnection of electrolyzer system 110 is achieved by controlling the circuit breaker 121 to disconnect the input 114 from the internal grid.
  • the auxiliary over voltage protection system may comprise a clamping circuit 141 arranged to clamp the voltage at the low voltage side of the transformer 131, e.g. dependent on a request.
  • the claiming circuit may be arranged to clamp the voltage to a predetermined voltage.
  • the purpose of the clamping circuit 141 is to protect auxiliary loads against over voltages.
  • the clamping circuit may be activated dependent on a request, such as a determined electrical characteristic of the over voltage protection system 140 so that the circuit will clamp the input voltage of the over voltage protection system 140 if the electrical characteristic becomes too high.
  • the clamping circuit may comprise a metal-oxide-varistor arranged to clamp the voltage which will cause a reduction of the voltage on the low voltage side of the transformer 131 and therefore also on the high voltage side. Accordingly, activating the clamping circuit also brings down the voltage of the high voltage side of the transformer 131.
  • the overvoltage voltage projection system 140 may be configured to determine the duration of the over voltage condition while the voltage is clamped. In this way, if the determined duration exceeds a maximum duration this would indicate a more severe over voltage situation with a lot of energy in grid 190, and therefore a need for disconnecting the electrolyzer system

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'une centrale à énergie renouvelable (100) comprenant au moins une éolienne (101) et un système d'électrolyseur (110) connecté à un réseau (190) par l'intermédiaire d'un réseau interne (191), le procédé comprenant la détection d'une condition de surtension relative à un niveau de tension au niveau d'une entrée de puissance (114) du système d'électrolyseur, l'envoi d'un signal d'avertissement à la ou aux éoliennes en réponse à la détection de la condition de surtension, et la commande de la ou des éoliennes pour effectuer une action de compensation afin d'abaisser le niveau de tension à l'entrée de puissance du système d'électrolyseur en réponse à la réception du signal d'avertissement.
PCT/DK2023/050195 2022-08-15 2023-08-03 Protection contre les surtensions d'un électrolyseur dans une éolienne WO2024037695A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA202270407 2022-08-15
DKPA202270407 2022-08-15

Publications (1)

Publication Number Publication Date
WO2024037695A1 true WO2024037695A1 (fr) 2024-02-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130093194A1 (en) * 2010-04-28 2013-04-18 Acciona Energia S.A. Hydrogen production system for controlling the power output of power stations based on renewable energhy sources and control process
US20130168237A1 (en) * 2010-09-30 2013-07-04 Hitachi, Ltd. Hydrogen production system
EP3656893A1 (fr) * 2017-06-02 2020-05-27 H2B2 Electrolysis Technologies, S.L. Procédé de fonctionnement d'une installation d'électrolyseurs alimentés par énergie renouvelable
WO2021170189A1 (fr) * 2020-02-26 2021-09-02 Vestas Wind Systems A/S Procédé de commande d'une centrale électrique renouvelable pendant des événements de tension
US20210288512A1 (en) * 2016-09-15 2021-09-16 Nantenergy, Inc. Hybrid battery system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130093194A1 (en) * 2010-04-28 2013-04-18 Acciona Energia S.A. Hydrogen production system for controlling the power output of power stations based on renewable energhy sources and control process
US20130168237A1 (en) * 2010-09-30 2013-07-04 Hitachi, Ltd. Hydrogen production system
US20210288512A1 (en) * 2016-09-15 2021-09-16 Nantenergy, Inc. Hybrid battery system
EP3656893A1 (fr) * 2017-06-02 2020-05-27 H2B2 Electrolysis Technologies, S.L. Procédé de fonctionnement d'une installation d'électrolyseurs alimentés par énergie renouvelable
WO2021170189A1 (fr) * 2020-02-26 2021-09-02 Vestas Wind Systems A/S Procédé de commande d'une centrale électrique renouvelable pendant des événements de tension

Non-Patent Citations (2)

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Title
CALIFANO M ET AL: "Optimal heat and power management of a reversible solid oxide cell based microgrid for effective technoeconomic hydrogen consumption and storage", APPLIED ENERGY, ELSEVIER SCIENCE PUBLISHERS, GB, vol. 319, 17 May 2022 (2022-05-17), XP087075112, ISSN: 0306-2619, [retrieved on 20220517], DOI: 10.1016/J.APENERGY.2022.119268 *
VALVERDE L ET AL: "Definition, analysis and experimental investigation of operation modes in hydrogen-renewable-based power plants incorporating hybrid energy storage", ENERGY CONVERSION AND MANAGEMENT, ELSEVIER SCIENCE PUBLISHERS, OXFORD, GB, vol. 113, 10 February 2016 (2016-02-10), pages 290 - 311, XP029428925, ISSN: 0196-8904, DOI: 10.1016/J.ENCONMAN.2016.01.036 *

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