JPS6032254A - Method of controlling supply of fuel and oxidizing agent - Google Patents
Method of controlling supply of fuel and oxidizing agentInfo
- Publication number
- JPS6032254A JPS6032254A JP58139389A JP13938983A JPS6032254A JP S6032254 A JPS6032254 A JP S6032254A JP 58139389 A JP58139389 A JP 58139389A JP 13938983 A JP13938983 A JP 13938983A JP S6032254 A JPS6032254 A JP S6032254A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- fuel
- oxidizer
- curve
- load current
- 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.)
- Pending
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
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明は燃料極、酸化剤極、電解液室及びそれぞれの電
極に燃料と酸化剤を供給する燃料室と酸化剤室からなる
燃料電池の単位電池並びにこれらを多数積層してなる積
層電池１こ、広頼囲の負荷変動に対して電圧変動の小さ
い電池性能を得るように燃料及び酸化剤を供給制御する
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a unit cell of a fuel cell consisting of a fuel electrode, an oxidizer electrode, an electrolyte chamber, a fuel chamber and an oxidizer chamber that supply fuel and oxidizer to each electrode, and a unit cell in which a large number of these are laminated. The present invention relates to a method for controlling the supply of fuel and oxidizer so as to obtain battery performance with small voltage fluctuations in response to wide range load fluctuations.
燃料電池は燃料と酸化剤を供給する限り連続的に発電す
ることができる直流発電装置であり、燃料及び酸化剤を
消費量に応じて、しかも効率良く供給することが重要で
ある。燃料及び酸化剤を供給する方法として気体燃料電
池では供給圧力を一定に保持する技術、液体燃料電池で
は燃料濃度を検出する技術が確立され、この技術を用い
ることによって安定した電池性能か得られることが知ら
れている。しかし、これらの方法は、いずれも電池出力
に対して間接的に制御するもので、負荷変動に対する応
答性は必ずしも良、好とは言えない。A fuel cell is a DC power generation device that can continuously generate electricity as long as fuel and oxidant are supplied, and it is important to supply fuel and oxidant efficiently according to the consumption amount. As a method of supplying fuel and oxidizer, technology has been established for gaseous fuel cells to maintain the supply pressure constant, and technology for liquid fuel cells to detect fuel concentration, and by using this technology, stable cell performance can be obtained. It has been known. However, all of these methods indirectly control the battery output, and the responsiveness to load fluctuations cannot necessarily be said to be good.
そこで、良好な応答性を持ち、かつ検出方法の簡単な制
御方法として電池電圧又は電池出力を検出し、燃料及び
酸化剤を供給制御する方法がある。電池出力は電池電圧
と負荷電流の積てあるから、電池電圧と電池出力を検出
する方法は基本的１こは同じである。電池電圧を検出し
て制御する方法１こついて、従来方法を説明する。Therefore, as a control method that has good responsiveness and a simple detection method, there is a method of detecting the battery voltage or battery output and controlling the supply of fuel and oxidizer. Since battery output is the product of battery voltage and load current, the methods for detecting battery voltage and battery output are basically the same. Method 1 of detecting and controlling battery voltage Next, a conventional method will be explained.
第１図は従来方法について示しｌとものである。FIG. 1 shows a conventional method.
即ち、負荷電流（電流密度〕−電池電圧（平均単電池電
圧９曲線Ａに対して、負荷電流に関係なく制御電圧を設
定し、電池電圧か”制御電圧設定［Ｂまで低下すると制
御回路により燃料供給弁、燃料供給ポンプや酸化剤供給
弁等を作動させて燃料及び酸化剤を供給する方法である
。この場合、高電流密度に合わせて制御電圧を設定する
ことになるから、比較的１氏い電流密度で運転すると実
際の電池電圧と制御電圧設定値の間１こ大きな差が生じ
る。負荷電流（電流密度）が変化した時に前記曲線とか
なり違った電池性能が得られることになり、例えば直流
入力を交流出力に変換する直交変換器と接続した場合、
交流出力が変動したり、重量や容積か゛増大する。In other words, the control voltage is set for the load current (current density) - battery voltage (average cell voltage) curve A, regardless of the load current. This is a method of supplying fuel and oxidizer by operating a supply valve, fuel supply pump, oxidizer supply valve, etc. In this case, the control voltage is set according to the high current density, so it takes relatively less time. When operating at a low current density, there will be a large difference between the actual battery voltage and the control voltage setting.When the load current (current density) changes, the battery performance will be quite different from the above curve, for example. When connected to a quadrature converter that converts DC input to AC output,
The AC output fluctuates or the weight or volume increases.
又、電池にとっても分極が絶えず変化するのは好ましく
ない。Further, it is not preferable for batteries to constantly change polarization.
本発明は、これらの問題を解決する燃料及び酸化剤供給
制御方法を提供するもので、以下、その詳細について説
明する。The present invention provides a fuel and oxidant supply control method that solves these problems, and details thereof will be described below.
第２図は電池、電圧を検出して制御する本発明の原理を
示したもの、第３図は制御回路の原理を示したものであ
る。制御電圧設定ＭＣは負荷電流（電流密度）−電池電
圧（平均単ｍ池ｍ圧）曲線Ａの傾斜と同じか、又は類似
させるようにしである。第３図のような制御回路の原理
から、制御電圧設定値Ｃはｖｒ−に＊ｒ＊ＩＬで表わぜ
る。FIG. 2 shows the principle of the present invention for detecting and controlling the battery and voltage, and FIG. 3 shows the principle of the control circuit. The control voltage setting MC is set to be the same as or similar to the slope of the load current (current density)-battery voltage (average battery voltage) curve A. Based on the principle of the control circuit shown in FIG. 3, the control voltage setting value C is expressed as *r*IL in vr-.
Ｖｒは負荷電流かＯＡの時の電池電圧、ＩＬは負荷電流
、ｒは電流検出用抵抗、ｋは電流検出用抵抗の両端電圧
を分圧する定数である。この定数ｋを変えることにより
制御電圧設定値の傾斜を自由に変えることができる。尚
、ｌは燃料電池、２は負荷、３．３′は抵抗、４は基準
電圧である。Vr is the battery voltage when the load current is OA, IL is the load current, r is the current detection resistor, and k is a constant that divides the voltage across the current detection resistor. By changing this constant k, the slope of the control voltage setting value can be changed freely. In addition, 1 is a fuel cell, 2 is a load, 3.3' is a resistance, and 4 is a reference voltage.
した力ｔっで、ｖｒ−に＠ｒ・ＩＬと電池電圧を比較し
、その差が所定の値より大きくなった時に燃料及び酸化
剤を供給することにより、負荷電流が変動した場合でも
電圧変動の少ない電池性能を得ることができる。第４図
は従来方法と本発明方法を用いた時の電池電圧の経時変
化を示したもので、本発明方法の方が安定した電池性能
を示すことがわかる。By comparing the battery voltage with @r・IL and supplying fuel and oxidizer when the difference becomes larger than a predetermined value, voltage fluctuations can be avoided even when the load current fluctuates. It is possible to obtain less battery performance. FIG. 4 shows the change in battery voltage over time when using the conventional method and the method of the present invention, and it can be seen that the method of the present invention exhibits more stable battery performance.
第１図はｉ池屓圧を検出して制御する従来法の原理を示
す曲線図、第２図は本発明の原理を示す曲線図、第３図
は本発明の制御回路の原理図、第４図は従来法と本発明
法を用いた時の電池電圧の経時変化を示す曲線図である
。
ｌは燃料電池、２は負荷、３．３′は抵抗、４は基準電
圧、Ａは電流一層圧曲線、Ｂは従来の電圧設定線、Ｃは
本発明電圧設定線
第１図
第２図Fig. 1 is a curve diagram showing the principle of the conventional method for detecting and controlling I-pool pressure, Fig. 2 is a curve diagram showing the principle of the present invention, Fig. 3 is a principle diagram of the control circuit of the present invention, FIG. 4 is a curve diagram showing changes in battery voltage over time when using the conventional method and the method of the present invention. 1 is the fuel cell, 2 is the load, 3.3' is the resistance, 4 is the reference voltage, A is the current-layer pressure curve, B is the conventional voltage setting line, and C is the voltage setting line of the present invention.
Claims (1)
と酸化剤を供給するガ；ｊ；刺室と酸化剤室からなる単
位電池並びｔこ、これらを多数積層してなる積層電池に
、電池電圧を検出して燃料及び酸化剤を供給する燃料及
び酸化剤供給制御方法において、負荷電流（または電流
密度）−電池電圧（単位電池電圧）曲線と類似した傾斜
を持ち、かつ該曲線より下側に位置するような電圧設定
曲線の設定電圧と比較し、その差が所定の値より大志く
なったときに燃料及び酸化剤を供給することを特徴とす
る燃料及び酸化剤供給制御方法。A fuel electrode, an oxidizer electrode, an electrolyte chamber, and a unit cell that supplies fuel and an oxidizer to each electrode; j; a unit cell consisting of a puncture chamber and an oxidizer chamber; and a stacked battery formed by stacking many of these. , in a fuel and oxidizer supply control method that detects cell voltage and supplies fuel and oxidizer, the load current (or current density) - cell voltage (unit cell voltage) curve has a slope similar to that of the curve; A fuel and oxidizer supply control method characterized by comparing the set voltage of a voltage setting curve located on the lower side and supplying the fuel and oxidizer when the difference becomes larger than a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58139389A JPS6032254A (en) | 1983-08-01 | 1983-08-01 | Method of controlling supply of fuel and oxidizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58139389A JPS6032254A (en) | 1983-08-01 | 1983-08-01 | Method of controlling supply of fuel and oxidizing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6032254A true JPS6032254A (en) | 1985-02-19 |
Family
ID=15244163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58139389A Pending JPS6032254A (en) | 1983-08-01 | 1983-08-01 | Method of controlling supply of fuel and oxidizing agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032254A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04121971A (en) * | 1990-09-11 | 1992-04-22 | Fuji Electric Co Ltd | Method of protective stopping of fuel cell power generator |
| WO2003044887A3 (en) * | 2001-11-20 | 2004-02-12 | Celltech Power Inc | An electrochemical system and methods for control thereof |
| US6847188B2 (en) | 1999-07-06 | 2005-01-25 | General Motors Corporation | Fuel cell stack monitoring and system control |
| KR100722109B1 (en) | 2005-09-28 | 2007-05-25 | 삼성에스디아이 주식회사 | Control device for fuel cell system and related method |
| US7678484B2 (en) | 2000-04-18 | 2010-03-16 | Celltech Power Llc | Electrochemical device and methods for energy conversion |
| US7745064B2 (en) | 2003-06-10 | 2010-06-29 | Celltech Power Llc | Oxidation facilitator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57143269A (en) * | 1981-02-27 | 1982-09-04 | Shin Kobe Electric Mach Co Ltd | Output controlling system for fuel cell |
-
1983
- 1983-08-01 JP JP58139389A patent/JPS6032254A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57143269A (en) * | 1981-02-27 | 1982-09-04 | Shin Kobe Electric Mach Co Ltd | Output controlling system for fuel cell |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04121971A (en) * | 1990-09-11 | 1992-04-22 | Fuji Electric Co Ltd | Method of protective stopping of fuel cell power generator |
| US6847188B2 (en) | 1999-07-06 | 2005-01-25 | General Motors Corporation | Fuel cell stack monitoring and system control |
| US7678484B2 (en) | 2000-04-18 | 2010-03-16 | Celltech Power Llc | Electrochemical device and methods for energy conversion |
| US7943271B2 (en) | 2000-04-18 | 2011-05-17 | Celltech Power Llc | Electrochemical device and methods for energy conversion |
| WO2003044887A3 (en) * | 2001-11-20 | 2004-02-12 | Celltech Power Inc | An electrochemical system and methods for control thereof |
| US7229710B2 (en) | 2001-11-20 | 2007-06-12 | Celltech Power, Inc. | Electrochemical system and methods for control thereof |
| US7745064B2 (en) | 2003-06-10 | 2010-06-29 | Celltech Power Llc | Oxidation facilitator |
| KR100722109B1 (en) | 2005-09-28 | 2007-05-25 | 삼성에스디아이 주식회사 | Control device for fuel cell system and related method |
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