WO2012169902A1 - Système d'alimentation en électricité - Google Patents

Système d'alimentation en électricité Download PDF

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Publication number
WO2012169902A1
WO2012169902A1 PCT/NO2012/050107 NO2012050107W WO2012169902A1 WO 2012169902 A1 WO2012169902 A1 WO 2012169902A1 NO 2012050107 W NO2012050107 W NO 2012050107W WO 2012169902 A1 WO2012169902 A1 WO 2012169902A1
Authority
WO
WIPO (PCT)
Prior art keywords
solar cell
electrolyser
farm
plant
voltage
Prior art date
Application number
PCT/NO2012/050107
Other languages
English (en)
Inventor
Richard ESPESETH
Harry TOBIASSEN
Original Assignee
Hydrogenpartner As
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 Hydrogenpartner As filed Critical Hydrogenpartner As
Publication of WO2012169902A1 publication Critical patent/WO2012169902A1/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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • H02J2300/30—The power source being a fuel cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Definitions

  • the present invention relates to a stand-alone system for supplying electricity in remote areas without access to a main power grid.
  • the hydrogen is used as an intermediate storage medium.
  • Such a system has a much larger storage capacity than battery-based systems and also a larger efficiency, i.e. less energy is lost in the conversions.
  • prior art electricity producing systems with buffering based on hydrogen storage has a number of drawbacks, in particular in that complicated controlling systems are needed, the electrolysis cells used may turn out to be a bottleneck limiting the capacity of the system and in that compressors are needed in order to compress the hydrogen for storage, the compressors needing energy on their own to operate, introducing a loss in efficiency.
  • PEM electrolysers PEM - Proton Exchange Membrane
  • Such electrolysers have far too small capacity to make a profitable alternative and are costly to produce.
  • the system is based on using two separate solar cell farms, one supplying electricity to the consumer during daytime, the other supplying electricity to an electrolytic cell, also during daytime.
  • the electrolytic cell is supplying hydrogen and oxygen at a relatively high pressure rendering the use of compressors unnecessary.
  • the system includes a primary solar cell farm 1 consisting of a number of individual solar cells connected in series and parallel to develop a predefined DC voltage.
  • the DC electric power from the primary solar cell farm 1 is supplied to a converter 2, the converter converting DC low voltage from the primary solar cell farm 1 into a standard AC mains voltage.
  • the AC mains voltage is fed to the consumer(s) via a local network 3.
  • the system also includes a secondary solar cell farm 4 with a number of individual solar cells, again connected in series/parallel.
  • the secondary farm is connected to an electrolyser plant 5.
  • the electrolyser 5 is a so-called pressurized alkaline electrolyser producing hydrogen and oxygen at 1-5 MPa (10-50 bar) or more.
  • Other electrolysers if or when they become available, may replace the pressurized alkaline electrolyser employed in the illustrated embodiment of the invention, but the electrolyser should preferably produce hydrogen and oxygen under pressure. Then, the use of compressors may be avoided, meaning an improved efficiency compared with prior art systems.
  • the electrolyser will produce gases as long as the secondary solar cell farm may produce any significant power.
  • the gases are stored in suitable storage means, such as tanks 6, 7 for oxygen and hydrogen,
  • the gases will be supplied to a fuel cell 8, to produce electricity during the night.
  • the DC power from the fuel cell is then supplied to the converter 2 for conversion to AC mains.
  • the primary solar cell farm 1 is directly connected to the converter 2, and the secondary solar farm is directly connected to the electrolyser.
  • control systems may be avoided altogether, meaning a great simplification of the system.
  • the solar cycle will control the operation of the system.
  • the electrolyser 5 may run on hydrogen from the tank 7 and oxygen from the ambient air. However, using the oxygen from the electrolyser 5 in the fuel cell 8, instead of air, will improve the efficiency of the fuel cell.
  • the fuel cell combines the supplied hydrogen and oxygen into water, as vapor or steam. The vapor/steam is condensed into water in the collector 9 and stored. The fuel cell will produce water during the night and the water is stored and supplied to the electrolyser for re-use during daytime. The re-use of water is beneficial for several reasons. Firstly, the plant only needs to be filled up with water initially when installed. Later, the system will be a closed process. This is a benefit in arid climates where a constant demand of water may be a problem. The use of water from the collector 9, which is clean and sterile, will prolong the lifetime of the electrolyser.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fuel Cell (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

L'invention concerne un système d'alimentation en électricité dans des zones éloignées, le système comprenant : une installation solaire primaire (1) consistant en un certain nombre de panneaux de cellules solaires individuelles, la centrale solaire primaire étant directement connectée à - un convertisseur (2) adapté à convertir une tension continue provenant de la centrale solaire primaire (1) en une tension de réseau alternative pour une distribution à un réseau consommateur (32), - une centrale solaire secondaire (4) consistant en un certain nombre de panneaux de cellules solaires individuelles, la centrale solaire secondaire (4) étant directement connectée à - une installation d'électrolyse (5), - un premier moyen de stockage (7) destiné à stocker l'hydrogène produit par l'installation d'électrolyse (5), et - une pile à combustible (8) apte à convertir l'hydrogène provenant du premier moyen de stockage (7) et de l'air ou de l'oxygène, en eau et en électricité, l'installation d'électrolyse (5) étant connectée au convertisseur (2) pour convertir la tension continue de la pile à combustible (8) en une tension de réseau alternative et distribuer cette tension de réseau alternative au réseau consommateur (3).
PCT/NO2012/050107 2011-06-10 2012-06-08 Système d'alimentation en électricité WO2012169902A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20110847 2011-06-10
NO20110847A NO333040B1 (no) 2011-06-10 2011-06-10 System for stromforsyning

Publications (1)

Publication Number Publication Date
WO2012169902A1 true WO2012169902A1 (fr) 2012-12-13

Family

ID=46354460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2012/050107 WO2012169902A1 (fr) 2011-06-10 2012-06-08 Système d'alimentation en électricité

Country Status (2)

Country Link
NO (1) NO333040B1 (fr)
WO (1) WO2012169902A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022263694A1 (fr) * 2021-06-13 2022-12-22 Lagrana Hernandez Angel Horacio Dispositif à commande intelligente répartie pour la génération et la récupération d'énergie au moyen de rayonnement solaire et d'hydrogène

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050109394A1 (en) * 2003-11-24 2005-05-26 The Boeing Company Solar electrolysis power co-generation system
DE102007042711A1 (de) * 2007-09-07 2009-03-12 Forschungszentrum Karlsruhe Gmbh Anlage zur supraleitenden magnetischen Energiespeicherung, elektrolytischen Wasserzerlegung und wassersynthetisierenden Stromerzeugung
US20100276299A1 (en) * 2009-04-30 2010-11-04 Gm Global Technology Operations, Inc. High pressure electrolysis cell for hydrogen production from water
US20110040421A1 (en) * 2007-10-09 2011-02-17 Swiss Hydrogen Power Shp Sa Installation for the production and storage of renewable energy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050109394A1 (en) * 2003-11-24 2005-05-26 The Boeing Company Solar electrolysis power co-generation system
DE102007042711A1 (de) * 2007-09-07 2009-03-12 Forschungszentrum Karlsruhe Gmbh Anlage zur supraleitenden magnetischen Energiespeicherung, elektrolytischen Wasserzerlegung und wassersynthetisierenden Stromerzeugung
US20110040421A1 (en) * 2007-10-09 2011-02-17 Swiss Hydrogen Power Shp Sa Installation for the production and storage of renewable energy
US20100276299A1 (en) * 2009-04-30 2010-11-04 Gm Global Technology Operations, Inc. High pressure electrolysis cell for hydrogen production from water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022263694A1 (fr) * 2021-06-13 2022-12-22 Lagrana Hernandez Angel Horacio Dispositif à commande intelligente répartie pour la génération et la récupération d'énergie au moyen de rayonnement solaire et d'hydrogène

Also Published As

Publication number Publication date
NO333040B1 (no) 2013-02-18
NO20110847A1 (no) 2012-12-11

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