WO2002021659A1 - High efficiency fuel cell power conditioner - Google Patents
High efficiency fuel cell power conditioner Download PDFInfo
- Publication number
- WO2002021659A1 WO2002021659A1 PCT/US2001/025665 US0125665W WO0221659A1 WO 2002021659 A1 WO2002021659 A1 WO 2002021659A1 US 0125665 W US0125665 W US 0125665W WO 0221659 A1 WO0221659 A1 WO 0221659A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power
- bus
- battery
- recited
- coupled
- Prior art date
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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
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
- H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates generally to electrical power transmission and distribution equipment, and more particularly to a high efficiency power conditioner for providing electrical power to a load.
- a fuel cell typically produces a low voltage at high current.
- the low voltage produced by the fuel cell varies with the operating conditions and load.
- the fuel cell is typically unable to quickly respond to the load change. It is therefore necessary to use an energy storage element such as a battery to provide the balance of power while the fuel cell "catches up” in its ability to provide all of the required power to the load.
- Many applications for a fuel cell require an alternating current (ac) output that provides power efficiently over a large range of load.
- ac alternating current
- the high-efficiency requirements of these applications typically preclude the use of multiple stages of power conversion. Since a high-efficiency system must minimize the number of power conversion stages, it is difficult to produce a system that can control the sharing of power between the fuel cell and battery while maintaining high system efficiency over a large load range.
- a goal of the present invention is to solve this problem by providing a high efficiency power conditioner while avoiding the need for multiple stages of power conversion along the main power path.
- the present invention provides a power conditioner that converts varying dc power from a dc source (such as, e.g., a fuel cell) to ac power in such a way as to provide a very- high efficiency during normal operation as well as allowing control of power from the dc source.
- a dc source such as, e.g., a fuel cell
- Such control can be very useful for small generation devices, and particularly fuel cells that require very high operating efficiencies at partial loads but would also profit from the ability to control power flow from the fuel cell.
- One exemplary implementation of the invention provides a power conditioner for conditioning electrical power provided by a generation device to a load.
- the generation device could be a fuel cell, for example, or a combination of a fuel cell (or other medium) in parallel with energy storage media, such as an electrolytic capacitor and/or flywheel system.
- This embodiment of the power conditioner includes a dc-to-ac inverter; a dc bus coupled to the dc-to-ac inverter; a low voltage power supply operatively coupled to the dc bus; a buck converter coupled between the low voltage power supply and the dc bus; and a boost converter coupled between the low voltage power supply and the dc bus.
- the low voltage power supply may include a battery or other device for supplying power.
- Figure 1 schematically depicts one preferred embodiment of a power conditioner in accordance with the present invention.
- Figure 2 A schematically depicts a more detailed implementation of the solution depicted in Figure 1, and Figure 2B depicts an implementation in which the buck and boost converters have been combined.
- FIG. 1 illustrates one presently preferred implementation of a high efficiency power conditioner in accordance with the present invention.
- the fuel cell 10 produces a low voltage that varies with the load.
- the battery 22 is sized to produce approximately the same voltage as the minimum operating fuel cell voltage.
- the dc-to-ac inverter 16 in this circuit is designed to operate with a low voltage input.
- a transformer (not shown) at the output of the dc-to-ac inverter can be used to boost the ac voltage to any desired level.
- a low voltage battery 22 provides power equal to the step change until the fuel cell 10 is able to support the entire load.
- the power from the battery 22 is supplied to the varying dc bus 14 through a boost converter 12.
- This boost converter allows full control of the battery power, so that the power drawn from the fuel cell can be gradually increased as the fuel supply is gradually increased.
- the battery can feed power to the dc bus through diode Dl, rather than through the boost converter. If the current flows through diode Dl, there will be no way to control the sharing of current between the fuel cell and the battery; however, such load changes will rarely occur in most applications.
- Diode Dl does not need to be used, but its use allows the boost converter to be sized for common load changes rather than for the maximum possible load change (such as might be seen during a faulted output). The use of Dl can therefore lead to substantial savings in the cost of the boost converter 12.
- the boost converter can economically be designed to handle such short term overloads merely by designing the main switching inductor to have an air-core. Air-core inductors cannot saturate and can therefore pass high over-currents for short periods of time.
- a buck converter 24 provides charging current to the battery.
- the buck converter converts the variable voltage on the dc bus 14 to the appropriate float charging voltage of the battery.
- the buck converter also supplies power for auxiliary equipment when available from the fuel cell. If the fuel cell is unable to provide the auxiliary power (such as during startup or load transients), then the auxiliary power can come directly from the battery.
- FIGS 2 A and 2B show exemplary implementations of the inventive solution shown in Figure 1. These implementations are similar, but in Figure 2B the buck and boost converters 24 and 12 are combined into a single bi-directional power flow converter 26.
- Q2 remains off, and Q3 is pulse-width-modulated to produce an appropriate battery float charge voltage as well as power auxiliary equipment.
- the buck converter reduces the amount of power provided to the auxiliary equipment in an amount equal to the load step change.
- the battery then provides the balance of power to the auxiliary equipment. As the fuel cell is able to provide more power, the power flow to the auxiliary equipment is increased accordingly.
- the buck converter 24 is turned off completely while the boost converter 12 draws the required balance of power (over-and-above that of the auxiliary power) from the battery and provides it to the dc bus.
- the boost converter allows the battery voltage to be boosted in order to charge the bus capacitor CI up to the open-circuit fuel cell voltage. Pre-charging CI insures that there will be no inrush current when switch SI is closed.
- the energy storage could be provided by a number of different storage media separately or in combination such as a large capacitor or a flywheel system. If more than one energy storage medium is used, then they can either be directly paralleled (which requires they have identical voltage output) or they can each have an accompanying buck and boost converter to tie into the dc bus.
- the preferred embodiment comprises a battery whose output voltage is similar to the minimum operating voltage of the fuel cell; however, if an electrolytic capacitor or flywheel system is used, it is probably more useful to design the maximum operating voltage of the fuel cell to be less than the minimum voltage of the capacitor or flywheel system.
- a battery, capacitor, or other suitable dc energy storage element that has a terminal voltage well below the minimum operating voltage of the fuel cell.
- the use of an energy storage element with such a low terminal voltage would require that the boost converter be sized to process the maximum load power.
- diode Dl would not be used in such a design since the energy storage terminal voltage would never be close enough to the fuel cell voltage to forward bias the diode.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01964086A EP1314233A4 (en) | 2000-09-01 | 2001-08-17 | High efficiency fuel cell power conditioner |
AU2001284979A AU2001284979A1 (en) | 2000-09-01 | 2001-08-17 | High efficiency fuel cell power conditioner |
CA002420973A CA2420973A1 (en) | 2000-09-01 | 2001-08-17 | High efficiency fuel cell power conditioner |
JP2002525966A JP2004508689A (en) | 2000-09-01 | 2001-08-17 | High efficiency fuel cell power conditioner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/653,663 US6369461B1 (en) | 2000-09-01 | 2000-09-01 | High efficiency power conditioner employing low voltage DC bus and buck and boost converters |
US09/653,663 | 2000-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002021659A1 true WO2002021659A1 (en) | 2002-03-14 |
Family
ID=24621824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/025665 WO2002021659A1 (en) | 2000-09-01 | 2001-08-17 | High efficiency fuel cell power conditioner |
Country Status (6)
Country | Link |
---|---|
US (1) | US6369461B1 (en) |
EP (1) | EP1314233A4 (en) |
JP (1) | JP2004508689A (en) |
AU (1) | AU2001284979A1 (en) |
CA (1) | CA2420973A1 (en) |
WO (1) | WO2002021659A1 (en) |
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---|---|---|---|---|
WO2008015461A1 (en) * | 2006-08-04 | 2008-02-07 | Ceres Intellectual Property Company Limited | Power supply control for power generator |
EP1923942A2 (en) * | 2006-11-16 | 2008-05-21 | Samsung SDI Co., Ltd. | Fuel cell system and method for controlling operation of the fuel cell system |
EP1796240A3 (en) * | 2005-12-06 | 2010-01-13 | LG Electronics Inc. | Power supply apparatus and method for line connected fuel cell system |
GB2476213B (en) * | 2008-09-13 | 2013-01-23 | Moixa Energy Holdings Ltd | Energy management and power provisioning system and method of installing, energy server and socket unit |
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WO2017151340A1 (en) * | 2016-03-04 | 2017-09-08 | Doosan Fuel Cell America, Inc. | Fuel cell power plant with real and reactive power modes |
NL2016525A (en) * | 2016-03-31 | 2017-10-05 | Bredenoord B V | Mobile ground power unit and method of use. |
EP3620324A1 (en) * | 2018-09-06 | 2020-03-11 | Industrial Technology Research Institute | Power supply device, flying tool using same and power supply method thereof |
Families Citing this family (168)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6630750B2 (en) * | 1999-12-16 | 2003-10-07 | Jomahip, Llc | Spare bus power plant |
SE518590C2 (en) * | 2000-02-16 | 2002-10-29 | Emerson Energy Systems Ab | Power on and reconnection system |
JP4218202B2 (en) * | 2000-10-04 | 2009-02-04 | トヨタ自動車株式会社 | DC power supply with fuel cell |
US6807073B1 (en) * | 2001-05-02 | 2004-10-19 | Oltronics, Inc. | Switching type power converter circuit and method for use therein |
US6930897B2 (en) * | 2001-07-31 | 2005-08-16 | Abb Research Ltd. | Fuel cell inverter |
US6737762B2 (en) | 2001-10-26 | 2004-05-18 | Onan Corporation | Generator with DC boost for uninterruptible power supply system or for enhanced load pickup |
DE10201756A1 (en) * | 2002-01-18 | 2003-07-31 | Bosch Gmbh Robert | Circuit arrangement for the short-term maintenance of at least one internal operating DC voltage in the event of a failure of the vehicle electrical system supply voltage |
US6943531B2 (en) * | 2002-03-20 | 2005-09-13 | Yamaha Hatsudoki Kabushiki Kaisha | Portable power supply incorporating a generator driven by an engine |
US6765370B2 (en) * | 2002-05-17 | 2004-07-20 | Kyocera Wireless Corp. | System and method for bi-directional power conversion in a portable device |
US7471062B2 (en) * | 2002-06-12 | 2008-12-30 | Koninklijke Philips Electronics N.V. | Wireless battery charging |
US6774602B2 (en) * | 2002-06-14 | 2004-08-10 | Delphi Technologies, Inc. | Apparatus and method for providing temporary power |
US7138730B2 (en) * | 2002-11-22 | 2006-11-21 | Virginia Tech Intellectual Properties, Inc. | Topologies for multiple energy sources |
DE10259879A1 (en) * | 2002-12-20 | 2004-07-01 | Zf Friedrichshafen Ag | Circuit arrangement for providing energy to electrical consumers of different energy requirements |
JP3704123B2 (en) * | 2002-12-27 | 2005-10-05 | 株式会社東芝 | Electronic equipment and battery unit |
US7786616B2 (en) * | 2003-02-07 | 2010-08-31 | Cummins Power Generation Inc. | Generator with DC boost and split bus bidirectional DC-to-DC converter for uninterruptible power supply system or for enhanced load pickup |
GB2407218B (en) * | 2003-03-17 | 2005-11-02 | Mitsubishi Electric Corp | Inverter device |
US8102144B2 (en) | 2003-05-28 | 2012-01-24 | Beacon Power Corporation | Power converter for a solar panel |
FR2856523B1 (en) * | 2003-06-20 | 2005-08-26 | Air Liquide | PROTECTION OF A FUEL CELL |
US20050048335A1 (en) * | 2003-08-26 | 2005-03-03 | Fields Robert E. | Apparatus and method for regulating hybrid fuel cell power system output |
US20050058867A1 (en) * | 2003-09-15 | 2005-03-17 | Intel Corporation | Integrated platform and fuel cell cooling |
US7393604B2 (en) * | 2003-09-15 | 2008-07-01 | Intel Corporation | Hybrid power system and method |
JP4433149B2 (en) * | 2003-10-31 | 2010-03-17 | 国産電機株式会社 | Engine-driven inverter power generator and control method thereof |
US7117044B2 (en) * | 2003-12-30 | 2006-10-03 | Square D Company | Alternative energy system control method and apparatus |
US7119450B2 (en) * | 2004-06-01 | 2006-10-10 | Illinois Tool Works Inc. | Fuel saving engine driven aircraft ground power device and method of use |
DE102004041511A1 (en) * | 2004-08-27 | 2006-03-02 | Robert Bosch Gmbh | Voltage regulator with overvoltage protection |
JP4855743B2 (en) * | 2004-09-30 | 2012-01-18 | 株式会社日立製作所 | Power supply device using fuel cell and control method thereof |
GB2415841B (en) * | 2004-11-08 | 2006-05-10 | Enecsys Ltd | Power conditioning unit |
US7239044B1 (en) * | 2004-12-09 | 2007-07-03 | Sandia Corporation | Enhanced distributed energy resource system |
JP2006217780A (en) | 2005-02-07 | 2006-08-17 | Yamaha Motor Co Ltd | Inverter ac power plant |
KR100704482B1 (en) * | 2005-04-01 | 2007-04-09 | 엘지전자 주식회사 | A switched reluctance generator with enhanced generating efficiency at low and high speed |
US7239113B2 (en) * | 2005-05-03 | 2007-07-03 | Caterpillar Inc | Method for reducing undesired currents in an electrical power generation system |
US7480487B2 (en) * | 2005-05-20 | 2009-01-20 | Dresser, Inc. | Power regulation for field instruments |
CN100342630C (en) * | 2005-07-05 | 2007-10-10 | 北京航空航天大学 | Pressure-reduced type high-power DC/DC converter flexible converter circuit for fuel-cell passenger coach |
CN100338860C (en) * | 2005-07-05 | 2007-09-19 | 北京航空航天大学 | Booster type high-power DC/DC converter flexible converter circuit for fuel cell passenger coach |
US20070008754A1 (en) * | 2005-07-06 | 2007-01-11 | Electro Scientific Industries, Inc. | Charge pump for bus-powered device |
FR2888685A1 (en) * | 2005-07-18 | 2007-01-19 | St Microelectronics Sa | CONTINUOUS-CONTINUOUS CONVERTER-CONTINUATOR |
KR100823921B1 (en) * | 2005-09-30 | 2008-04-22 | 엘지전자 주식회사 | Power conversion apparatus for fuel cell |
US7233079B1 (en) * | 2005-10-18 | 2007-06-19 | Willard Cooper | Renewable energy electric power generating system |
JP4893916B2 (en) * | 2005-11-09 | 2012-03-07 | トヨタ自動車株式会社 | Fuel cell system |
US11881814B2 (en) | 2005-12-05 | 2024-01-23 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US10693415B2 (en) | 2007-12-05 | 2020-06-23 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US7915854B2 (en) * | 2005-12-16 | 2011-03-29 | Plug Power Inc. | Maximizing energy storage life in a fuel cell system using active temperature compensation |
US20070141429A1 (en) * | 2005-12-16 | 2007-06-21 | Robertson David M | Storing energy in a fuel cell system |
US20070141428A1 (en) * | 2005-12-16 | 2007-06-21 | Skidmore Dustan L | Preventing backfeeding of current to a fuel cell stack from energy storage |
GB2434490B (en) | 2006-01-13 | 2009-04-01 | Enecsys Ltd | Power conditioning unit |
US8405367B2 (en) | 2006-01-13 | 2013-03-26 | Enecsys Limited | Power conditioning units |
WO2008030398A2 (en) * | 2006-09-05 | 2008-03-13 | Summit Microelectronics, Inc | Circuits and methods for controlling power in a battery operated system |
TWI327812B (en) * | 2006-11-28 | 2010-07-21 | Ind Tech Res Inst | Inverter circuit and control circuit thereof |
US8618692B2 (en) | 2007-12-04 | 2013-12-31 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
US8384243B2 (en) | 2007-12-04 | 2013-02-26 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11569659B2 (en) | 2006-12-06 | 2023-01-31 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11687112B2 (en) | 2006-12-06 | 2023-06-27 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US8473250B2 (en) | 2006-12-06 | 2013-06-25 | Solaredge, Ltd. | Monitoring of distributed power harvesting systems using DC power sources |
US9130401B2 (en) | 2006-12-06 | 2015-09-08 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US8013472B2 (en) | 2006-12-06 | 2011-09-06 | Solaredge, Ltd. | Method for distributed power harvesting using DC power sources |
US11735910B2 (en) | 2006-12-06 | 2023-08-22 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
US8319483B2 (en) | 2007-08-06 | 2012-11-27 | Solaredge Technologies Ltd. | Digital average input current control in power converter |
US9112379B2 (en) | 2006-12-06 | 2015-08-18 | Solaredge Technologies Ltd. | Pairing of components in a direct current distributed power generation system |
US8947194B2 (en) | 2009-05-26 | 2015-02-03 | Solaredge Technologies Ltd. | Theft detection and prevention in a power generation system |
US11296650B2 (en) | 2006-12-06 | 2022-04-05 | Solaredge Technologies Ltd. | System and method for protection during inverter shutdown in distributed power installations |
US8319471B2 (en) | 2006-12-06 | 2012-11-27 | Solaredge, Ltd. | Battery power delivery module |
US11728768B2 (en) | 2006-12-06 | 2023-08-15 | Solaredge Technologies Ltd. | Pairing of components in a direct current distributed power generation system |
US8963369B2 (en) | 2007-12-04 | 2015-02-24 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11855231B2 (en) | 2006-12-06 | 2023-12-26 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US9088178B2 (en) | 2006-12-06 | 2015-07-21 | Solaredge Technologies Ltd | Distributed power harvesting systems using DC power sources |
US8816535B2 (en) | 2007-10-10 | 2014-08-26 | Solaredge Technologies, Ltd. | System and method for protection during inverter shutdown in distributed power installations |
US11309832B2 (en) | 2006-12-06 | 2022-04-19 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11888387B2 (en) | 2006-12-06 | 2024-01-30 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
US7586762B2 (en) * | 2006-12-12 | 2009-09-08 | O2Micro International Limited | Power supply circuit for LCD backlight and method thereof |
US7663342B2 (en) * | 2007-01-26 | 2010-02-16 | Solarbridge Technologies, Inc. | Apparatus, system, and method for controlling multiple power supplies |
US7902692B2 (en) * | 2007-02-22 | 2011-03-08 | Lear Corporation | Inverter system |
KR20080084372A (en) * | 2007-03-16 | 2008-09-19 | 삼성전자주식회사 | A fuel cell system coupled power line and load using the fuel cell system |
US7948215B2 (en) * | 2007-04-19 | 2011-05-24 | Hadronex, Inc. | Methods and apparatuses for power generation in enclosures |
US7719138B2 (en) * | 2007-09-11 | 2010-05-18 | Gm Global Technology Operations, Inc. | Two-source series inverter |
US9005785B2 (en) * | 2007-09-24 | 2015-04-14 | GM Global Technology Operations LLC | Open-loop system and method for fuel cell stack start-up with low-voltage source |
US7755916B2 (en) | 2007-10-11 | 2010-07-13 | Solarbridge Technologies, Inc. | Methods for minimizing double-frequency ripple power in single-phase power conditioners |
US9218013B2 (en) | 2007-11-14 | 2015-12-22 | Tigo Energy, Inc. | Method and system for connecting solar cells or slices in a panel system |
US9291696B2 (en) | 2007-12-05 | 2016-03-22 | Solaredge Technologies Ltd. | Photovoltaic system power tracking method |
CN101933209B (en) | 2007-12-05 | 2015-10-21 | 太阳能安吉有限公司 | Release mechanism in distributed electrical power apparatus, to wake up and method for closing |
US8289742B2 (en) | 2007-12-05 | 2012-10-16 | Solaredge Ltd. | Parallel connected inverters |
US11264947B2 (en) | 2007-12-05 | 2022-03-01 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
WO2009072076A2 (en) | 2007-12-05 | 2009-06-11 | Solaredge Technologies Ltd. | Current sensing on a mosfet |
JP4852028B2 (en) * | 2007-12-21 | 2012-01-11 | 本田技研工業株式会社 | Hybrid DC power supply system and fuel cell vehicle |
US20100283242A1 (en) * | 2007-12-26 | 2010-11-11 | Dooley Kevin A | High Voltage Start of an Engine from a Low Voltage Battery |
CN103213513B (en) * | 2007-12-28 | 2015-07-29 | 丰田自动车株式会社 | Fuel cell system |
US8111052B2 (en) | 2008-03-24 | 2012-02-07 | Solaredge Technologies Ltd. | Zero voltage switching |
EP2294669B8 (en) | 2008-05-05 | 2016-12-07 | Solaredge Technologies Ltd. | Direct current power combiner |
EP2294494A4 (en) * | 2008-06-13 | 2012-11-14 | Ceramic Fuel Cells Ltd | Fuel cell stabilisation system and method |
CN101656506A (en) * | 2008-08-20 | 2010-02-24 | 鸿富锦精密工业(深圳)有限公司 | Motor driving system |
US20100079109A1 (en) * | 2008-09-30 | 2010-04-01 | loxus, Inc. | Methods and apparatus for storing electricity |
US7952231B1 (en) * | 2008-10-31 | 2011-05-31 | Netapp, Inc. | Method and system for providing supplemental power |
DE102008054706A1 (en) * | 2008-12-16 | 2010-06-17 | Robert Bosch Gmbh | Power supply network for a vehicle |
JP5354222B2 (en) * | 2009-06-09 | 2013-11-27 | トヨタ自動車株式会社 | Fuel cell system |
KR101033900B1 (en) * | 2009-06-23 | 2011-05-11 | 현대자동차주식회사 | Power transmission device and method for fuel cell-super capacitor hybrid vehicle |
US8358033B2 (en) * | 2009-07-20 | 2013-01-22 | General Electric Company | Systems, methods, and apparatus for converting DC power to AC power |
US8228697B2 (en) * | 2009-07-20 | 2012-07-24 | General Electric Company | Systems, methods, and apparatus for operating a power converter |
US8576598B2 (en) * | 2009-07-20 | 2013-11-05 | General Electric Company | Systems, methods, and apparatus for converting direct current (DC) power to alternating current (AC) power |
US8482947B2 (en) | 2009-07-31 | 2013-07-09 | Solarbridge Technologies, Inc. | Apparatus and method for controlling DC-AC power conversion |
US8421419B2 (en) * | 2009-09-30 | 2013-04-16 | General Electric Company | Antiferroelectric capacitor-enabled power converter |
US8462518B2 (en) * | 2009-10-12 | 2013-06-11 | Solarbridge Technologies, Inc. | Power inverter docking system for photovoltaic modules |
US8824178B1 (en) | 2009-12-31 | 2014-09-02 | Solarbridge Technologies, Inc. | Parallel power converter topology |
US20110199039A1 (en) * | 2010-02-17 | 2011-08-18 | Lansberry Geoffrey B | Fractional boost system |
US20110234151A1 (en) * | 2010-03-26 | 2011-09-29 | Uan-Zo-Li Alexander B | Platform with power boost |
US8373949B2 (en) * | 2010-06-16 | 2013-02-12 | Transocean Sedco Forex Ventures Limited | Hybrid power plant for improved efficiency and dynamic performance |
US9054385B2 (en) * | 2010-07-26 | 2015-06-09 | Energyor Technologies, Inc | Passive power management and battery charging for a hybrid fuel cell / battery system |
US9160408B2 (en) | 2010-10-11 | 2015-10-13 | Sunpower Corporation | System and method for establishing communication with an array of inverters |
US8503200B2 (en) | 2010-10-11 | 2013-08-06 | Solarbridge Technologies, Inc. | Quadrature-corrected feedforward control apparatus and method for DC-AC power conversion |
US8279649B2 (en) | 2010-10-11 | 2012-10-02 | Solarbridge Technologies, Inc. | Apparatus and method for controlling a power inverter |
TW201220637A (en) * | 2010-11-01 | 2012-05-16 | Chung Hsin Elec & Mach Mfg | Charge-controlling system and method therefor |
US10673229B2 (en) | 2010-11-09 | 2020-06-02 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
US10673222B2 (en) | 2010-11-09 | 2020-06-02 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
GB2485527B (en) | 2010-11-09 | 2012-12-19 | Solaredge Technologies Ltd | Arc detection and prevention in a power generation system |
US10230310B2 (en) | 2016-04-05 | 2019-03-12 | Solaredge Technologies Ltd | Safety switch for photovoltaic systems |
US9118213B2 (en) | 2010-11-24 | 2015-08-25 | Kohler Co. | Portal for harvesting energy from distributed electrical power sources |
US8842454B2 (en) | 2010-11-29 | 2014-09-23 | Solarbridge Technologies, Inc. | Inverter array with localized inverter control |
US9467063B2 (en) | 2010-11-29 | 2016-10-11 | Sunpower Corporation | Technologies for interleaved control of an inverter array |
GB2486408A (en) | 2010-12-09 | 2012-06-20 | Solaredge Technologies Ltd | Disconnection of a string carrying direct current |
GB2483317B (en) | 2011-01-12 | 2012-08-22 | Solaredge Technologies Ltd | Serially connected inverters |
US8193788B2 (en) | 2011-04-27 | 2012-06-05 | Solarbridge Technologies, Inc. | Method and device for controlling a configurable power supply to provide AC and/or DC power output |
US8611107B2 (en) | 2011-04-27 | 2013-12-17 | Solarbridge Technologies, Inc. | Method and system for controlling a multi-stage power inverter |
US9065354B2 (en) | 2011-04-27 | 2015-06-23 | Sunpower Corporation | Multi-stage power inverter for power bus communication |
US8922185B2 (en) | 2011-07-11 | 2014-12-30 | Solarbridge Technologies, Inc. | Device and method for global maximum power point tracking |
US8570005B2 (en) | 2011-09-12 | 2013-10-29 | Solaredge Technologies Ltd. | Direct current link circuit |
US8284574B2 (en) | 2011-10-17 | 2012-10-09 | Solarbridge Technologies, Inc. | Method and apparatus for controlling an inverter using pulse mode control |
GB2498365A (en) | 2012-01-11 | 2013-07-17 | Solaredge Technologies Ltd | Photovoltaic module |
US9853565B2 (en) | 2012-01-30 | 2017-12-26 | Solaredge Technologies Ltd. | Maximized power in a photovoltaic distributed power system |
GB2498790A (en) | 2012-01-30 | 2013-07-31 | Solaredge Technologies Ltd | Maximising power in a photovoltaic distributed power system |
GB2498791A (en) | 2012-01-30 | 2013-07-31 | Solaredge Technologies Ltd | Photovoltaic panel circuitry |
GB2499991A (en) | 2012-03-05 | 2013-09-11 | Solaredge Technologies Ltd | DC link circuit for photovoltaic array |
US20130241464A1 (en) * | 2012-03-14 | 2013-09-19 | Samsung Sdi Co., Ltd. | Fuel cell hybrid system and method for charging rechargeable battery thereof |
US20130285449A1 (en) * | 2012-04-26 | 2013-10-31 | Hamilton Sundstrand Corporation | System and method for providing hold-up power to a load |
US10115841B2 (en) | 2012-06-04 | 2018-10-30 | Solaredge Technologies Ltd. | Integrated photovoltaic panel circuitry |
US9276635B2 (en) | 2012-06-29 | 2016-03-01 | Sunpower Corporation | Device, system, and method for communicating with a power inverter using power line communications |
US9215770B2 (en) | 2012-07-03 | 2015-12-15 | Philips International, B.V. | Systems and methods for low-power lamp compatibility with a trailing-edge dimmer and an electronic transformer |
US9655202B2 (en) | 2012-07-03 | 2017-05-16 | Philips Lighting Holding B.V. | Systems and methods for low-power lamp compatibility with a leading-edge dimmer and a magnetic transformer |
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US9273858B2 (en) | 2012-12-13 | 2016-03-01 | Phillips International, B.V. | Systems and methods for low-power lamp compatibility with a leading-edge dimmer and an electronic transformer |
US9941813B2 (en) | 2013-03-14 | 2018-04-10 | Solaredge Technologies Ltd. | High frequency multi-level inverter |
US9548619B2 (en) | 2013-03-14 | 2017-01-17 | Solaredge Technologies Ltd. | Method and apparatus for storing and depleting energy |
US9263964B1 (en) * | 2013-03-14 | 2016-02-16 | Philips International, B.V. | Systems and methods for low-power lamp compatibility with an electronic transformer |
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US9584044B2 (en) | 2013-03-15 | 2017-02-28 | Sunpower Corporation | Technologies for converter topologies |
US9564835B2 (en) | 2013-03-15 | 2017-02-07 | Sunpower Corporation | Inverter communications using output signal |
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US9318974B2 (en) | 2014-03-26 | 2016-04-19 | Solaredge Technologies Ltd. | Multi-level inverter with flying capacitor topology |
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US10389134B2 (en) * | 2017-06-21 | 2019-08-20 | Katerra, Inc. | Electrical power distribution system and method |
WO2019169093A1 (en) * | 2018-02-28 | 2019-09-06 | R-Stor Inc. | Method and system for generation and distribution of high voltage direct current |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5150032A (en) * | 1989-05-04 | 1992-09-22 | Astec International Limited | Combined charging and supply circuit |
US5373195A (en) * | 1992-12-23 | 1994-12-13 | General Electric Company | Technique for decoupling the energy storage system voltage from the DC link voltage in AC electric drive systems |
US6198177B1 (en) * | 2000-01-07 | 2001-03-06 | Lucent Technologies Inc. | Power supply providing backup AC voltage and method of operation thereof |
US6225708B1 (en) * | 1998-06-05 | 2001-05-01 | International Business Machine Corporation | Uninterruptable power supply |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6217958A (en) * | 1985-07-16 | 1987-01-26 | Sanyo Electric Co Ltd | Control device for fuel cell power generation system |
US4719550A (en) * | 1986-09-11 | 1988-01-12 | Liebert Corporation | Uninterruptible power supply with energy conversion and enhancement |
US4860185A (en) * | 1987-08-21 | 1989-08-22 | Electronic Research Group, Inc. | Integrated uninterruptible power supply for personal computers |
GB8722234D0 (en) * | 1987-09-22 | 1987-10-28 | Chloride Group Plc | Uninterrupted power supply |
US5318142A (en) * | 1992-11-05 | 1994-06-07 | Ford Motor Company | Hybrid drive system |
CA2114507A1 (en) * | 1994-01-28 | 1995-07-29 | Seshadri Sivakumar | Bimodal fast transfer off-line uninterruptible power supply |
JP3608017B2 (en) * | 1996-07-22 | 2005-01-05 | トヨタ自動車株式会社 | Power system |
-
2000
- 2000-09-01 US US09/653,663 patent/US6369461B1/en not_active Expired - Lifetime
-
2001
- 2001-08-17 WO PCT/US2001/025665 patent/WO2002021659A1/en active Application Filing
- 2001-08-17 JP JP2002525966A patent/JP2004508689A/en active Pending
- 2001-08-17 AU AU2001284979A patent/AU2001284979A1/en not_active Abandoned
- 2001-08-17 EP EP01964086A patent/EP1314233A4/en not_active Withdrawn
- 2001-08-17 CA CA002420973A patent/CA2420973A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5150032A (en) * | 1989-05-04 | 1992-09-22 | Astec International Limited | Combined charging and supply circuit |
US5373195A (en) * | 1992-12-23 | 1994-12-13 | General Electric Company | Technique for decoupling the energy storage system voltage from the DC link voltage in AC electric drive systems |
US6225708B1 (en) * | 1998-06-05 | 2001-05-01 | International Business Machine Corporation | Uninterruptable power supply |
US6198177B1 (en) * | 2000-01-07 | 2001-03-06 | Lucent Technologies Inc. | Power supply providing backup AC voltage and method of operation thereof |
Non-Patent Citations (1)
Title |
---|
See also references of EP1314233A4 * |
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US8187761B2 (en) | 2005-12-06 | 2012-05-29 | Lg Electronics Inc. | Power supply apparatus and method for line connection type fuel cell system |
EP1796240A3 (en) * | 2005-12-06 | 2010-01-13 | LG Electronics Inc. | Power supply apparatus and method for line connected fuel cell system |
US7880334B2 (en) | 2006-08-04 | 2011-02-01 | Ceres Intellectual Property Company, Limited | Power supply control for power generator |
EA016526B1 (en) * | 2006-08-04 | 2012-05-30 | Серес Интеллекчуал Проперти Компани Лимитед | Power supply control for power generator |
WO2008015461A1 (en) * | 2006-08-04 | 2008-02-07 | Ceres Intellectual Property Company Limited | Power supply control for power generator |
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US9729083B2 (en) | 2012-02-01 | 2017-08-08 | Sony Corporation | Power supply system and power source apparatus |
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US10483842B2 (en) | 2014-06-27 | 2019-11-19 | Thyssenkrupp Marine Systems Gmbh | Drive system having DC power supply for a submarine |
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WO2017151340A1 (en) * | 2016-03-04 | 2017-09-08 | Doosan Fuel Cell America, Inc. | Fuel cell power plant with real and reactive power modes |
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Also Published As
Publication number | Publication date |
---|---|
CA2420973A1 (en) | 2002-03-14 |
JP2004508689A (en) | 2004-03-18 |
EP1314233A4 (en) | 2005-03-16 |
US6369461B1 (en) | 2002-04-09 |
EP1314233A1 (en) | 2003-05-28 |
AU2001284979A1 (en) | 2002-03-22 |
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