Title:
FUEL CELL DEVICE AND METHOD FOR FEEDING ELECTRICAL CURRENT TO ELECTRICAL NETWORK
Document Type and Number:
WIPO Patent Application WO/2010/066945
Kind Code:
A3
Abstract:
The focus of the invention is a method for producing electrical current by a fuel cell device, which inputs electrical current to electrical network (125). In the method at least one fuel cell device (123) is arranged to be parallel connected to electrical network (125), is formed a phase reference signal to be utilized in the inputting of the electrical current, electrical current is inputted to electrical network current controlled by means of a power transformer (122) comprising a power stage (122), when the fuel cell device has been parallel connected to electrical network, the fuel cell device is switched off from electrical network when a malfunction occurs in electrical network. In the method the fuel cell device is changed by using the phase reference signal to switched off operation mode from electrical network for performing voltage controlled operation of the power transformer (122), and a controllable load (126) is used for maintaining a power stability between the voltage controlled power transformer (122) and other parts of the fuel cell device, and, when the malfunction has vanished from electrical network, the fuel cell device is changed by using the phase reference signal to switched on operation mode to electrical network for performing current controlled operation of the power transformer (122) system.
Inventors:
AASTROEM KIM (FI)
Application Number:
PCT/FI2009/050968
Publication Date:
September 30, 2010
Filing Date:
December 01, 2009
Export Citation:
Assignee:
WAERTSILAE FINLAND OY (FI)
AASTROEM KIM (FI)
AASTROEM KIM (FI)
International Classes:
H02J3/38; H02M7/48
Other References:
HAIMIN TAO ET AL: "Line-Interactive UPS Using a Fuel Cell as the Primary Source", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA LNKD- DOI:10.1109/TIE.2008.918472, vol. 55, no. 8, 1 August 2008 (2008-08-01), pages 3012 - 3021, XP011225182, ISSN: 0278-0046
SANGMIN JUNG ET AL: "A Low Cost Utility Interactive Inverter for Residential Fuel Cell Generation", IEEE TRANSACTIONS ON POWER ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US LNKD- DOI:10.1109/TPEL.2007.909191, vol. 22, no. 6, 1 November 2007 (2007-11-01), pages 2293 - 2298, XP011196141, ISSN: 0885-8993
GUOQIAO SHEN ET AL: "Instantaneous Voltage Regulated Seamless Transfer Control Strategy for Utility-interconnected Fuel cell Inverters with an LCL-filter", CONFERENCE PROCEEDINGS. IPEMC 2006. CES/IEEE 5TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE 14-16 AUG. 2006 SHANGHAI, CHINA, CONFERENCE PROCEEDINGS. IPEMC 2006. CES/IEEE 5TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFER, 14 August 2006 (2006-08-14), pages 1 - 5, XP031421488, ISBN: 978-1-4244-0448-3
SANGMIN JUNG ET AL: "A Low Cost Utility Interactive Inverter for Residential Fuel Cell Generation", IEEE TRANSACTIONS ON POWER ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US LNKD- DOI:10.1109/TPEL.2007.909191, vol. 22, no. 6, 1 November 2007 (2007-11-01), pages 2293 - 2298, XP011196141, ISSN: 0885-8993
GUOQIAO SHEN ET AL: "Instantaneous Voltage Regulated Seamless Transfer Control Strategy for Utility-interconnected Fuel cell Inverters with an LCL-filter", CONFERENCE PROCEEDINGS. IPEMC 2006. CES/IEEE 5TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE 14-16 AUG. 2006 SHANGHAI, CHINA, CONFERENCE PROCEEDINGS. IPEMC 2006. CES/IEEE 5TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFER, 14 August 2006 (2006-08-14), pages 1 - 5, XP031421488, ISBN: 978-1-4244-0448-3
Attorney, Agent or Firm:
LEITZINGER OY (Helsinki, FI)
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