JPS5622053A - Protection of overcurrent in fuel-battery generation-system - Google Patents

Protection of overcurrent in fuel-battery generation-system

Info

Publication number
JPS5622053A
JPS5622053A JP9748379A JP9748379A JPS5622053A JP S5622053 A JPS5622053 A JP S5622053A JP 9748379 A JP9748379 A JP 9748379A JP 9748379 A JP9748379 A JP 9748379A JP S5622053 A JPS5622053 A JP S5622053A
Authority
JP
Japan
Prior art keywords
gas
overcurrent
oxidizing
agent
fuel
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP9748379A
Other languages
Japanese (ja)
Other versions
JPS6046781B2 (en
Inventor
Takehiko Machida
Nobuyuki Horiuchi
Rikio Ishikawa
Takashi Kobayashi
Sumio Yokogawa
Hiroyuki Tajima
Kazuo Koseki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central Research Institute of Electric Power Industry
Fuji Electric Co Ltd
Original Assignee
Central Research Institute of Electric Power Industry
Fuji Electric Co Ltd
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 Central Research Institute of Electric Power Industry, Fuji Electric Co Ltd filed Critical Central Research Institute of Electric Power Industry
Priority to JP54097483A priority Critical patent/JPS6046781B2/en
Publication of JPS5622053A publication Critical patent/JPS5622053A/en
Publication of JPS6046781B2 publication Critical patent/JPS6046781B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
    • H01M8/04303—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Protection Of Static Devices (AREA)
  • Fuel Cell (AREA)

Abstract

PURPOSE:To simply prevent overcurrent from reaching a critical level by substituting an inert gas for both/either of reaction gases in a fuel-gas chamber and an oxidizing-agent-gas chamber at the point when a DC overcurrent is detected. CONSTITUTION:If a DC current exceeds the detection level of an overcurrent detector 19, the detector 19 gives cross valves 14 a signal commanding a change-over. Then O2 gas as an oxidizing agent is stopped being supplied, and N2 gas which is an inert gas is sent into an oxidizing-agent-gas chamber in a fuel battery 1. Here, in order to curtail the amount of the inert gas, a substitution valve 17 which is installed in an outlet pipe 16 desirably should by throttled or closed according to the output signal of the detector 19; thus a bomb 15 of a smaller capacity can be used. Consequently, O2 gas in the oxidizing-agent-gas chamber in the fuel battery 1 is replaced with N2 gas, and thereby DC overcurrent can be prevented from reaching a critical level by a simple means. Furthermore, the N2-gas bomb can be omitted by using the N2 in the air.
JP54097483A 1979-07-31 1979-07-31 Overcurrent protection method for fuel cell power generation system Expired JPS6046781B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54097483A JPS6046781B2 (en) 1979-07-31 1979-07-31 Overcurrent protection method for fuel cell power generation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54097483A JPS6046781B2 (en) 1979-07-31 1979-07-31 Overcurrent protection method for fuel cell power generation system

Publications (2)

Publication Number Publication Date
JPS5622053A true JPS5622053A (en) 1981-03-02
JPS6046781B2 JPS6046781B2 (en) 1985-10-17

Family

ID=14193511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54097483A Expired JPS6046781B2 (en) 1979-07-31 1979-07-31 Overcurrent protection method for fuel cell power generation system

Country Status (1)

Country Link
JP (1) JPS6046781B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968179A (en) * 1982-10-08 1984-04-18 Toshiba Corp Fuel cell power generating system
JPS60216466A (en) * 1984-04-11 1985-10-29 Hitachi Ltd Fuel cell power generation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968179A (en) * 1982-10-08 1984-04-18 Toshiba Corp Fuel cell power generating system
JPS60216466A (en) * 1984-04-11 1985-10-29 Hitachi Ltd Fuel cell power generation system

Also Published As

Publication number Publication date
JPS6046781B2 (en) 1985-10-17

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