WO2007018830A2 - Systemes d'alimentation par energie renouvelable - Google Patents

Systemes d'alimentation par energie renouvelable Download PDF

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Publication number
WO2007018830A2
WO2007018830A2 PCT/US2006/025683 US2006025683W WO2007018830A2 WO 2007018830 A2 WO2007018830 A2 WO 2007018830A2 US 2006025683 W US2006025683 W US 2006025683W WO 2007018830 A2 WO2007018830 A2 WO 2007018830A2
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WO
WIPO (PCT)
Prior art keywords
port
bus
renewable energy
coupled
pressure hydrogen
Prior art date
Application number
PCT/US2006/025683
Other languages
English (en)
Other versions
WO2007018830A3 (fr
Inventor
Daniel W. Parmley
Original Assignee
Parmley Daniel W
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 Parmley Daniel W filed Critical Parmley Daniel W
Publication of WO2007018830A2 publication Critical patent/WO2007018830A2/fr
Publication of WO2007018830A3 publication Critical patent/WO2007018830A3/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
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • 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
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H02J1/12—Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • 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
    • 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
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • 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
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • 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 systems for incorporating renewable energy systems into existing power systems.
  • the present invention further relates to an uninterruptible power supply (UPS) with more than the minimum of three couplings required for a UPS, wherein the additional coupling may be used for coupling direct current (DC) loads and sources.
  • UPS uninterruptible power supply
  • the present invention further relates to integration of hydrogen generation means within a renewable energy power system.
  • UPS alternating current
  • AC alternating current
  • DC DC bus
  • inverter for converting DC into AC.
  • the AC output of the UPS supplies a primary load, and if the commercial power fails, even momentarily, the batteries support the primary load until an emergency generator can be started and coupled to the primary load.
  • seamless compensation for a failure of commercial power is provided.
  • Modern hydrogen gas production systems based on electrolyzers are stand-alone systems with both high-pressure and low-pressure storage tanks. While a significant amount of energy is required to compress the hydrogen gas for storage, much of that energy is wasted because the storage pressure is much higher than many (but not all) end-user pressure tanks.
  • a hydrogen production facility may store hydrogen at approximately 7000 psi while hydrogen-fueled vehicles may store hydrogen at 4500 psi. The 2500 psi difference is much more than is needed to overcome conduit losses. Accordingly, what is needed are hydrogen gas production systems that are integrated with electrical renewable energy power systems and which permit recovery of some of the otherwise wasted pressure differential pressure energy in the stored hydrogen gas.
  • One embodiment of the present invention provides an uninterruptible power supply (UPS) with a novel multi-port DC bus having a rapidly responsive energy storage means 116 coupled thereto for maintaining level power and a plurality of additional ports for coupling various DC loads and DC sources to the multi-port DC bus within the UPS.
  • Another embodiment has one of the plurality of additional ports coupled to an electrolyzer for producing hydrogen gas from water and DC power. The hydrogen gas is pumped to high- pressure storage and, when released to a significantly lower pressure end-user tank, is routed through a variable- vane turbine that runs a motor-generator in generation mode to put DC power back on the multi-port DC bus in the UPS.
  • Another embodiment can put power back into a commercial power grid through a backup generator, such as a bio-diesel generator; from a hydrogen-fueled generator, which may be a fuel cell or a hydrogen-fueled motor driving a DC generator; or from any of various other sources of DC power coupled to the multi-port DC bus in the UPS in various embodiments,
  • a backup generator such as a bio-diesel generator
  • a hydrogen-fueled generator which may be a fuel cell or a hydrogen-fueled motor driving a DC generator
  • any of various other sources of DC power coupled to the multi-port DC bus in the UPS in various embodiments
  • FIG. 1 is a block diagram view illustrating an exemplary embodiment of the renewable energy power systems according to the present invention
  • the exemplary embodiment of renewable energy power system 100 includes a UPS core 102 having a multi-port DC bus 108 featuring a plurality ports 195(A-I) (labeled by example) for coupling DC power lines 121, 123, 131, 133, 135, 137, 181, 187, 185, 121, and 123, respectively, to the multi-port DC bus 108 through regulators 10A- 101, respectively.
  • a "port" 195 is a power coupling to the multi-port DC bus 108 for a DC load or a DC source.
  • a "multi-port DC bus” 108 is a DC bus having more power couplings than the minimum of three that are required for operation as a UPS: a first necessary coupling for the converter 104, a second necessary coupling for the inverter 106, and a third necessary coupling for the responsive energy storage means 116. Furthermore, the definition of "multi-port DC bus" 108 includes that the power couplings, which are additional to the necessary minimum of three, are accessible though ports on an exterior portion of the UPS core 102. Note that, in some commercially available UPSs, the three necessary couplings may not be discrete components.
  • Responsive energy storage means 116 are energy storage devices operable to store power, operable to supply that stored power in response to a power drop on the multi-port DC bus 108, and operable thereafter to re-store an amount of energy equal to that just supplied in approximately the same period of time that it supplied that power.
  • a re-store period less than or equal to 115% of the discharge period is considered “approximately equal”.
  • the exemplary embodiment of renewable energy power system 100 further includes backup generator 120, which is preferably a bio-diesel engine-generator set producing AC power on AC power line 119 to the primary load 118 when signaled to produce power for the primary load 118.
  • backup generator 120 may run on hydrogen.
  • Backup generator 120 may also operate to produce AC power on AC power line 176 when signaled to do so.
  • AC power line 176 may couple the backup generator 120 to the reverse feed switch 114 of power system 100, which can couple AC power output to a commercial utility company's AC utility power grid 112 over AC power line 111, as shown.
  • AC power line 115 may couple power from the AC power grid 112 to the input of the UPS core 102, as shown.
  • the AC output of the UPS core 102 may alternatively be supplied to the reverse feed switch 114 over AC power line 113, as shown.
  • the UPS core 102 comprises an AC/DC converter 104 supplying DC power to a multi-port DC bus 108, which supplies DC power to DC/AC inverter 106.
  • the AC output of DC/ AC inverter 106 supplies the primary load 118 over AC power line 117, as shown.
  • the multi-port DC bus 108 may have a regulator, such as one of regulators 10A- 101, for each DC power line 121,123, 131, 133, 135, 137, 185, 187, and 181, coupled to the multi-port DC bus 108 for voltage regulation and current limiting. If a particular power source or load is self- regulating, a corresponding particular separate regulator 10A- 101 may be omitted.
  • each renewable energy power system 100 should have no more components than are actually needed in a particular application.
  • the entire structure of the UPS core 102 and responsive energy storage means 116 should be environmentally sound as well as electrically effective.
  • Exemplary embodiment of renewable energy power system 100 further includes rapidly responsive energy storage means 116.
  • Responsive energy storage means 116 operates to rapidly make up any drop in utility power 112 that impacts the input to multi-port DC bus 108 from converter 104.
  • Responsive energy storage means 116 also operates to level any drop in photovoltaic power from PV array 122, any drop in alternative power from source 132, any drop in generator power from hydrogen-fueled DC generator 136, any drop in power from motor-generator 146, any drop in power through bi-directional coupling 154, or any drop in power through any other port. The supply-drop leveling occurs until either the commercial utility power 112 reacts to compensate for the drop or the backup generator 120 begins operation.
  • responsive energy storage means 116 supplies 20 seconds of power from a fully ready state in response to the power grid 112 failing or the photovoltaic 122 power dropping due to a cloud
  • the responsive energy storage means 116 will return to the fully ready state in approximately 20 seconds.
  • the system In order to provide constant power output from the UPS core 102 while serving a wide range of intermittent power sources and loads connected to the DC bus 108, the system must have the capacity to rapidly compensate for falls in the net power level going from the multi-port DC bus 108 into the inverter 106. With a plurality of intermittent renewable energy sources and loads connected to multi-port DC bus 108, several drops in power production may occur in a short period of time. The ability to level these variations is critical to the proper functioning of the UPS core 102.
  • the UPS core 102 and responsive energy storage means 116 are sized and configured to supply all loads from commercial utility power 112, and the addition of power from alternative sources 122, 133, 136, 146, and 162 reduces the amount of commercial utility power 112 consumed.
  • UPS core 102 and responsive energy storage means 116 such as having multiple and/or various responsive energy storage means 116 coupled to the UPS core 102, having a load distribution logic to drop lower priority loads during low power production periods, having a power leveling logic to reduce demand for utility power 112 during high alternative energy production periods, etc., may be appropriate.
  • responsive energy storage means 116 such as larger capacity ultra capacitors, combinations of batteries and Maxwell ultra capacitors, or other, as yet unknown rapidly responsive energy storage means 116, etc., may suffice.
  • Responsive energy storage means 116 is coupled to the multi-port DC bus 108 and is configured to compensate for any drops in DC power on the multi-port DC bus 108.
  • the responsive energy storage means 116 is shown coupled directly to the multi-port DC bus 108 because it is preferably integral to the UPS core 102.
  • the ports 195 (A-I) are for external connections to the multi-port DC bus 108, as shown.
  • Backup generator 120 when in operation, produces AC power that is coupled along AC power line 119 to supply primary load 118.
  • backup generator 120 may produce AC power to sell to the commercial power grid 112, supplying that power along AC power line 176, through the reverse feed switch 114 to the power grid 112.
  • responsive energy storage means 116 such as having multiple and/or various responsive energy storage means 116 coupled in series or parallel, etc., may be appropriate.
  • the multi-port DC bus 108 has a plurality of regulators 10 (A-I) to provide voltage regulation and current limiting between the multi-port DC bus 108 and various DC loads and sources.
  • Each port 195(A-I) on the multi-port DC bus 108 may have a DC source, a DC load, or an element that is, at particular times, a source and, at other times, a load.
  • Each port 195 (A-I) may include a regulator, such as one of regulators 10A- 101.
  • the number of ports 195 (A-I) is not limited to the number shown in the figure.
  • Some ports 195 (A-I), such as port 195H coupled to electrical recharging station 152 by DC power line 121, port 195C coupled to electrolyzer 134 via DC power line 135, and port 195E coupled to DC motor-generator 146 via DC power line 181, provide temporally varying, or intermittent, loads to the multi-port DC bus 108.
  • Such renewable energy power systems 100 are not feasible without responsive energy storage means 116 for leveling power on the multi-port DC bus 108.
  • responsive energy storage means 116 By gathering the power from all sources on the multi-port DC bus 108 in the UPS core 102 before conversion to AC power in the inverter 106, substantial reductions in infrastructure costs can be realized. Without a responsive energy storage means 116 with low operating costs, this approach would not be economically or technically feasible.
  • DC output power line 135 couples DC power from port 195C to electrolyzer 134, which produces hydrogen gas from water and DC power.
  • the hydrogen gas is coupled to low-pressure storage tank 140 over hydrogen gas conduit 139.
  • Low-pressure hydrogen is pumped into high-pressure storage tank 148 though conduit 143, high-pressure pump 142, and hydrogen gas conduit 147.
  • High-pressure pump 142 is mechanically coupled by drive shaft 160 to DC motor-generator 146, which is powered, in motoring mode, from the multi- port DC bus 108 along DC power line 181 coupled to port 195E.
  • the hydrogen is conducted through conduit 149 to a variable-aspect-vane turbine 144, which extracts mechanical power from a pressure differential between the high-pressure hydrogen gas tank 148 and the destination such as hydrogen supply station 150 and/or hydrogen-fueled DC generator 136.
  • the extracted mechanical power rotates shaft 160 to turn DC motor-generator 146 in generation mode to produce power for the multi-port DC bus 108 via power line 181 coupled to port 195E.
  • Hydrogen-fueled DC generator 136 which may be one or more fuel cells and/or a hydrogen-fueled motor driving a DC generator, produces DC power and supplies the DC power along DC power line 137 to port 195D, though regulator 10D, and to the multi-port DC bus 108. Hydrogen-fueled DC generator 136 is fueled either directly from low-pressure tank 140 via conduit 191 or through conduit 145 from the pressure-dropping variable-aspect- vane turbine 144.
  • Hydrogen may also be transferred along conduit 151 from the pressure- dropping variable-aspect-vane turbine 144 to a hydrogen supply station 150 and though releasable hydrogen conduit 178 to a hydrogen-fueled vehicle 164, or though releasable hydrogen conduit 189 to supply fuel or lifting gas for an airship 162, or to other end users of hydrogen.
  • airship 162 is equipped with solar photovoltaic arrays on its hulls, then the airship may be a source of DC power to multi-port DC bus 108 via releasable DC power line 183, bi-directional coupling 154, and DC power line 123. Conversely, if the airship 162 requires DC power, it can be supplied along the reverse route.
  • Electric vehicle 161 can be charged from the multi-port DC bus 108 via regulator 1OH, port 195H, DC power line 121, and electrical recharging station 152.
  • regulator 1OH the degree of operation required to charge the multi-port DC bus 108.
  • port 195H the degree of power available to the multi-port DC bus 108.
  • electrical recharging station 152 the degree of power available to the multi-port DC bus 108.
  • DC power from photovoltaic (PV) array 122 may be supplied along power line 131 to port 195A and regulator 1OA to the multi-port DC bus 108.
  • the PV array 122 may be cooled by heat exchanger 124 through coolant circulation conduits 126 and 128. Waste heat may be collected in central plant 130 where it may be used to generate DC power using any means of alternative production 132.
  • the DC power generated in the alternative production facility 132 is supplied along power line 133 coupled to port 195B and through regulator 1OB to the multi-port DC bus 108.
  • Alternative production facility 132 may include, without limitation, wind power, hydroelectric power, geothermal power, solar power, sterling engine, or biogas generators.
  • Alternative production facility 132 may also produce hydrogen gas, which is transferred to low-pressure storage tank 140 along conduit 141.
  • any alternative production facility 132 such as tide-powered generators, landfill reclamation gas-powered generators, sewer-gas generators, galvanic hydrogen generators, etc., may be appropriate.
  • the exemplary embodiment illustrates a fully integrated system that can receive energy from multiple sources, including intermittent sources, and produce stable energy outputs for a plurality of loads.
  • the exemplary embodiment can provide a standalone capability for logistical support of lighter-than-air twin hull hybrid airships such as those disclosed by the present inventor in US Patent 6,843,448.
  • alternative embodiments may be used.
  • more or fewer alternative energy sources (but not fewer than one) and more or fewer energy loads may be preferred.
  • an isolated mountain town may make obvious variations in the design to avail itself of geothermal, wind, and hydroelectric sources and produce hydrogen as a prime mover fuel.
  • oxygen which is a natural by-product of electrolyzing water in electrolizer 134, may be used to supply a hospital, for improving ventilation (e.g., mines), or for various other purposes for which oxygen is useful.
  • the hydrogen production subsystem may be omitted to reduce risk.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

Des moyens de stockage de l'énergie à réponse rapide permettent de créer un bus CC multi-accès dans une UPS pour coupler une pluralité de sources CC intermittentes et de charges CC intermittentes. L'invention porte sur des systèmes d'alimentation par énergie renouvelable disposant d'une UPS possédant un bus CC multi-accès et d'un moyen de stockage de l'énergie en réponse couplé électriquement au bus CC multi-accès. Un mode de réalisation porte sur un système d'alimentation par énergie renouvelable disposant d'une UPS possédant un bus multi-accès CC ayant au moins un coupleur supplémentaire par rapport aux trois coupleurs nécessaires pour faire fonctionner une UPS. Le couplage supplémentaire est conçu pour coupler une charge CC ou une source CC au bus CC multi-accès. Un moyen de stockage de l'énergie en réponse est couplé pour alimenter le bus CC multi-accès et fonctionne de manière à maintenir un niveau de puissance constant sur le bus CC multi-accès.
PCT/US2006/025683 2005-07-23 2006-06-30 Systemes d'alimentation par energie renouvelable WO2007018830A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70161005P 2005-07-23 2005-07-23
US60/701,610 2005-07-23

Publications (2)

Publication Number Publication Date
WO2007018830A2 true WO2007018830A2 (fr) 2007-02-15
WO2007018830A3 WO2007018830A3 (fr) 2009-04-30

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014027246A3 (fr) * 2012-08-16 2014-05-30 Robert Bosch Gmbh Système de construction de courant continu à accumulation d'énergie et système de commande
WO2013028644A3 (fr) * 2011-08-19 2014-06-05 Robert Bosch Gmbh Charges synchronisées solaires pour systèmes photovoltaïques
DE102015105707A1 (de) 2014-04-14 2015-10-15 Tmeic Corporation Hybrid-Leistungskonverter für Erneuerbare-Energie-Kraftwerk
US9312699B2 (en) 2012-10-11 2016-04-12 Flexgen Power Systems, Inc. Island grid power supply apparatus and methods using energy storage for transient stabilization
WO2016147164A1 (fr) * 2015-03-19 2016-09-22 Cts Energy S.R.L. Procédé et appareil pour fournir de l'énergie électrique à un dispositif d'utilisateur
US9553517B2 (en) 2013-03-01 2017-01-24 Fllexgen Power Systems, Inc. Hybrid energy storage system and methods
US10289080B2 (en) 2012-10-11 2019-05-14 Flexgen Power Systems, Inc. Multi-generator applications using variable speed and solid state generators for efficiency and frequency stabilization
US10574055B2 (en) 2014-12-30 2020-02-25 Flexgen Power Systems, Inc. Transient power stabilization device with active and reactive power control
JPWO2021117097A1 (fr) * 2019-12-09 2021-06-17
IT202100019952A1 (it) * 2021-07-27 2023-01-27 Hera S P A Impianto per la produzione e la gestione di energia rinnovabile per aree urbane, industriali e simili
EP4236003A1 (fr) * 2022-02-24 2023-08-30 nLighten B.V. Système de centre de données et procédé de fonctionnement du système de centre de données

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US7081687B2 (en) * 2004-07-22 2006-07-25 Sprint Communications Company L.P. Power system for a telecommunications facility
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US7244524B2 (en) * 2002-09-13 2007-07-17 Proton Energy Systems, Inc. Method and system for balanced control of backup power
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013028644A3 (fr) * 2011-08-19 2014-06-05 Robert Bosch Gmbh Charges synchronisées solaires pour systèmes photovoltaïques
JP2018085927A (ja) * 2011-08-19 2018-05-31 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ 太陽光発電システム用のソーラー同期負荷
US9937810B2 (en) 2012-08-16 2018-04-10 Robert Bosch Llc Charging and discharging of DC microgrid energy storage
WO2014027246A3 (fr) * 2012-08-16 2014-05-30 Robert Bosch Gmbh Système de construction de courant continu à accumulation d'énergie et système de commande
US10020656B2 (en) 2012-08-16 2018-07-10 Robert Bosch Llc Emergency load management using a DC microgrid during grid outage
US10615597B2 (en) 2012-10-11 2020-04-07 Flexgen Power Systems, Inc. Grid power supply apparatus and methods using energy storage for transient stabilization
US9312699B2 (en) 2012-10-11 2016-04-12 Flexgen Power Systems, Inc. Island grid power supply apparatus and methods using energy storage for transient stabilization
US10289080B2 (en) 2012-10-11 2019-05-14 Flexgen Power Systems, Inc. Multi-generator applications using variable speed and solid state generators for efficiency and frequency stabilization
US9553517B2 (en) 2013-03-01 2017-01-24 Fllexgen Power Systems, Inc. Hybrid energy storage system and methods
US9923487B2 (en) 2014-04-14 2018-03-20 Tmeic Corporation Hybrid power converter for renewable energy power plant
DE102015105707A1 (de) 2014-04-14 2015-10-15 Tmeic Corporation Hybrid-Leistungskonverter für Erneuerbare-Energie-Kraftwerk
US10574055B2 (en) 2014-12-30 2020-02-25 Flexgen Power Systems, Inc. Transient power stabilization device with active and reactive power control
WO2016147164A1 (fr) * 2015-03-19 2016-09-22 Cts Energy S.R.L. Procédé et appareil pour fournir de l'énergie électrique à un dispositif d'utilisateur
JPWO2021117097A1 (fr) * 2019-12-09 2021-06-17
EP4074865A4 (fr) * 2019-12-09 2022-11-23 Fujitsu Limited Système d'électrolyse de l'eau et dispositif d'électrolyse de l'eau
JP7416088B2 (ja) 2019-12-09 2024-01-17 富士通株式会社 水電気分解システム
IT202100019952A1 (it) * 2021-07-27 2023-01-27 Hera S P A Impianto per la produzione e la gestione di energia rinnovabile per aree urbane, industriali e simili
EP4236003A1 (fr) * 2022-02-24 2023-08-30 nLighten B.V. Système de centre de données et procédé de fonctionnement du système de centre de données

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