JPS6231957A - Fuel cell power generating system - Google Patents
Fuel cell power generating systemInfo
- Publication number
- JPS6231957A JPS6231957A JP60171051A JP17105185A JPS6231957A JP S6231957 A JPS6231957 A JP S6231957A JP 60171051 A JP60171051 A JP 60171051A JP 17105185 A JP17105185 A JP 17105185A JP S6231957 A JPS6231957 A JP S6231957A
- Authority
- JP
- Japan
- Prior art keywords
- fuel cell
- internal resistance
- main body
- cell main
- water vapor
- 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
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
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
-
- 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)
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は燃料電池発電装置に係り、特に電池の内部抵抗
値の増加防止に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a fuel cell power generation device, and particularly to preventing an increase in internal resistance of a battery.
燃料電池の性能劣化要素の一つとして内部抵抗値の増加
がある。その原因は、燃料極と酸化剤極の間に挾持され
る電解質、例えばリン酸が脱水縮合により高抵抗化する
ことにある。このような内部抵抗値の増加を防止するた
めには、反応ガス中に水蒸気を混入し、その量を調節す
ることにより電解質の抵抗値を安定に維持する方法が考
えられる。しかしこのためには燃料電池の内部抵抗値を
知る必要があり、これを測定するためには電池の運転を
停止したり、あるいは負荷を急変させたりしなければな
らず、安定した運転が阻害される問題がある。One of the factors that degrades the performance of fuel cells is an increase in internal resistance. The reason for this is that the electrolyte, such as phosphoric acid, sandwiched between the fuel electrode and the oxidizer electrode becomes highly resistant due to dehydration condensation. In order to prevent such an increase in the internal resistance value, a method can be considered in which water vapor is mixed into the reaction gas and the amount thereof is adjusted to maintain a stable resistance value of the electrolyte. However, in order to do this, it is necessary to know the internal resistance value of the fuel cell, and in order to measure this, it is necessary to stop the operation of the battery or suddenly change the load, which hinders stable operation. There is a problem.
なお、この種の装置として関連するものには例えば特開
昭５９−１４９６６７号公報がある。A related device of this type is, for example, Japanese Unexamined Patent Publication No. 149667/1983.
本発明の目的は、燃料電池の安定した運転整阻害するこ
となく、反応ガス中の水蒸気の量を調節することによっ
て、内部抵抗値を安定に維持することができる燃料電池
発電装置を提供することにある。An object of the present invention is to provide a fuel cell power generation device that can maintain a stable internal resistance value by adjusting the amount of water vapor in a reaction gas without disturbing the stable operation of the fuel cell. It is in.
本発明は、燃料電池本体への反応ガス流入通路内に該燃
料電池本体と等価なセル構成の小形モニタセルを設け、
該小形モニタセルの内部抵抗値を測定することによって
燃料電池本体の内部抵抗値を推定し、この測定結果に基
づいて気水分離器の水蒸気除去能力を制御することによ
り燃料電池本体へ供給する反応ガス中の水蒸気量を最適
値に保ち、以って燃料電池本体の内部抵抗値を安定に維
持するようにしたことを特徴とする。The present invention provides a small monitor cell having a cell configuration equivalent to that of the fuel cell main body in the reactant gas inflow passage to the fuel cell main body,
The internal resistance value of the fuel cell body is estimated by measuring the internal resistance value of the small monitor cell, and the reactant gas is supplied to the fuel cell body by controlling the water vapor removal capacity of the steam/water separator based on this measurement result. The fuel cell is characterized in that the amount of water vapor inside the fuel cell is maintained at an optimum value, thereby stably maintaining the internal resistance value of the fuel cell main body.
本発明の一実施例を第１図および第２図を参照して説明
する。第１図において、燃料電池は燃料極系１０と酸化
剤極系２０から成り、メタン等の天然ガスを改質して得
られる改質ガイは気水分離器３０によって水蒸気含有量
を調節した後に燃料極系１０に供給される。内部抵抗測
定系４０は燃料電池の内部抵抗値を推測して前記気水分
離器３０の水蒸気除去能力を制御し、燃料電池の内部抵
抗値を安定に維持するものである。An embodiment of the present invention will be described with reference to FIGS. 1 and 2. In FIG. 1, the fuel cell consists of a fuel electrode system 10 and an oxidizer electrode system 20, and the reformed gas obtained by reforming natural gas such as methane is heated through a steam separator 30 to adjust its water vapor content. It is supplied to the fuel electrode system 10. The internal resistance measuring system 40 estimates the internal resistance value of the fuel cell, controls the water vapor removal ability of the steam separator 30, and maintains the internal resistance value of the fuel cell stably.
第２図は、内部抵抗測定系４０の具体例を示しく３）
ている。燃料電池の燃料極系１０は、ガス供給マニホル
ド１１、燃料電池本体における燃料極１２、ガス排出マ
ニホルド１３を備えている。内部抵抗測定系４０は、燃
料電池本体と等価なセル構成の小形モニタセル４１と、
該小形モニタセル４１に交流電流を流すための交流電源
４２と、小形モニタセル４１に与えられる電圧を測定す
る電圧計４３と、小形モニタセル４１に流れる電流を測
定する電流計４４とを備え、前記小形モニタセル４１は
前記ガス供給マニホルド１１内に配置される。FIG. 2 shows a specific example of the internal resistance measuring system 40. The fuel electrode system 10 of the fuel cell includes a gas supply manifold 11, a fuel electrode 12 in the fuel cell main body, and a gas exhaust manifold 13. The internal resistance measurement system 40 includes a small monitor cell 41 having a cell configuration equivalent to that of the fuel cell main body;
The small monitor cell includes an AC power supply 42 for passing an alternating current through the small monitor cell 41, a voltmeter 43 for measuring the voltage applied to the small monitor cell 41, and an ammeter 44 for measuring the current flowing through the small monitor cell 41. 41 is disposed within the gas supply manifold 11.
そして、この内部抵抗測定系４０は、燃料電池本体と等
価な小形モニタセル４１の抵抗値の大きさを測定するこ
とにより、その値から燃料電池本体の内部抵抗値を推測
して気水分離器３ｏを制御し、燃料電池の内部抵抗値が
安定に維持されるように反応ガス中の水蒸気量を調節す
る。The internal resistance measuring system 40 measures the resistance value of a small monitor cell 41 equivalent to the fuel cell main body, estimates the internal resistance value of the fuel cell main body from the measured value, and estimates the internal resistance value of the fuel cell main body from the value. and adjusts the amount of water vapor in the reaction gas so that the internal resistance value of the fuel cell is maintained stably.
本発明は、燃料電池本体への反応ガス流入通路 ｌ内
に該燃料電池本体と等価なセル構成の小形モニタセルを
設け、該小形モニタセルの内部抵抗値を測定することに
よって燃料電池本体の内部抵抗値を推測し、この測定結
果に基づいて気水分離器の水蒸気除去能力を制御するこ
とにより、燃料電池本体へ供給する反応ガス中の水蒸気
量を最適値に保つようにしたので、内部抵抗値測定のた
めに燃料電池の安定な運転を阻害することがなく、しか
も内部抵抗値を安定に維持することができる。The present invention provides a small monitor cell having a cell configuration equivalent to that of the fuel cell main body in a reactant gas inflow passage l to the fuel cell main body, and measures the internal resistance value of the small monitor cell to determine the internal resistance of the fuel cell main body. By estimating this and controlling the water vapor removal capacity of the steam/water separator based on this measurement result, we were able to maintain the amount of water vapor in the reaction gas supplied to the fuel cell main body at an optimal value, making it possible to measure the internal resistance value. Therefore, the stable operation of the fuel cell is not hindered, and the internal resistance value can be maintained stably.
図面は、本発明の一実施例を示すもので、第１図は系統
図、第２図は内部抵抗測定系の電気的配線図である。
１０・・・燃料極系、１１・・・ガス供給マニホルド、
１２・・・燃料極、３０・・・気水分離器、４ｏ・・・
内部抵抗測定系、４１・・・小形モニタセル。The drawings show an embodiment of the present invention, and FIG. 1 is a system diagram, and FIG. 2 is an electrical wiring diagram of an internal resistance measurement system. 10...Fuel electrode system, 11...Gas supply manifold,
12...Fuel electrode, 30...Steam water separator, 4o...
Internal resistance measurement system, 41...small monitor cell.
Claims (1)
た電解質層を有する燃料電池本体と、該燃料電池本体に
反応ガスを供給するガス供給装置と、燃料電池本体に供
給される反応ガス中の水蒸気量を調節する気水分離器を
備えた燃料電池発電装置において、前記燃料電池本体へ
の反応ガス流入通路内に、該燃料電池本体と等価なセル
構成の小形モニタセルを設け、該小形モニタセルの内部
抵抗値に応じて前記気水分離器の水蒸気除去能力を制御
するようにしたことを特徴とする燃料電池発電装置。1. A fuel cell main body having a fuel electrode, an oxidizer electrode, and an electrolyte layer interposed between these electrodes, a gas supply device that supplies a reactive gas to the fuel cell main body, and a reactive gas supplied to the fuel cell main body. In a fuel cell power generation device equipped with a steam separator for adjusting the amount of water vapor in the fuel cell, a small monitor cell having a cell configuration equivalent to that of the fuel cell main body is provided in the reactant gas inflow passage to the fuel cell main body, A fuel cell power generation device characterized in that the water vapor removal capacity of the steam/water separator is controlled according to the internal resistance value of the monitor cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60171051A JPH0821413B2 (en) | 1985-08-05 | 1985-08-05 | Fuel cell generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60171051A JPH0821413B2 (en) | 1985-08-05 | 1985-08-05 | Fuel cell generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6231957A true JPS6231957A (en) | 1987-02-10 |
| JPH0821413B2 JPH0821413B2 (en) | 1996-03-04 |
Family
ID=15916167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60171051A Expired - Fee Related JPH0821413B2 (en) | 1985-08-05 | 1985-08-05 | Fuel cell generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0821413B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643968A (en) * | 1987-06-26 | 1989-01-09 | Hitachi Ltd | Fuel cell and its operating method |
| JPS6431353A (en) * | 1987-07-27 | 1989-02-01 | Sanyo Electric Co | Operating method for fuel cell |
| JP2005524216A (en) * | 2002-04-30 | 2005-08-11 | ゼネラル・モーターズ・コーポレーション | Λ detection of fuel cell stack |
-
1985
- 1985-08-05 JP JP60171051A patent/JPH0821413B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643968A (en) * | 1987-06-26 | 1989-01-09 | Hitachi Ltd | Fuel cell and its operating method |
| JPS6431353A (en) * | 1987-07-27 | 1989-02-01 | Sanyo Electric Co | Operating method for fuel cell |
| JP2005524216A (en) * | 2002-04-30 | 2005-08-11 | ゼネラル・モーターズ・コーポレーション | Λ detection of fuel cell stack |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0821413B2 (en) | 1996-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |