JPH043069B2 - - Google Patents
Info
- Publication number
- JPH043069B2 JPH043069B2 JP57186165A JP18616582A JPH043069B2 JP H043069 B2 JPH043069 B2 JP H043069B2 JP 57186165 A JP57186165 A JP 57186165A JP 18616582 A JP18616582 A JP 18616582A JP H043069 B2 JPH043069 B2 JP H043069B2
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- differential pressure
- electrode
- gas flow
- measuring means
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 claims description 43
- 239000007800 oxidant agent Substances 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims 2
- 230000036647 reaction Effects 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 16
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000011261 inert gas Substances 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- H01M8/04104—Regulation of differential pressures
-
- 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)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、濃厚リン酸電解質型燃料電池、溶
融炭酸塩型燃料電池の極間差圧制御装置に係り、
とくに、酸化剤極と燃料極との間の極間差圧を、
燃料側に供給するH2または、酸化剤に供給する
O2がクロスオーバー（両極間の極間差圧が適切
な値に設定されていない場合、燃料あるいは酸化
剤が他の電極表面へもれ出し、その電極表面で燃
焼して燃料や酸化剤を消費してしまう現象）によ
つて消費される量が最小となるように自動制御す
る極間差圧制御装置に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an electrode differential pressure control device for a concentrated phosphoric acid electrolyte fuel cell or a molten carbonate fuel cell.
In particular, the interelectrode pressure difference between the oxidizer electrode and the fuel electrode is
H2 supplied to the fuel side or supplied to the oxidizer
O 2 crosses over (if the differential pressure between the two electrodes is not set to an appropriate value, fuel or oxidizer leaks to the other electrode surface and burns on that electrode surface, causing the fuel or oxidizer to escape). The present invention relates to an interelectrode differential pressure control device that automatically controls the amount consumed by the phenomenon (consumption phenomenon) to a minimum.
従来の極間差圧制御方法の一例を第１図を用い
て説明する。燃料電池本体１は圧力容器２の中に
入れられ、イナートガスで加圧される。そして、
この燃料電池に燃料及び酸化剤が供給される。こ
のとき、燃料極及び酸化剤極の極間差圧が電解液
の泡圧以上かかると燃料及び酸化剤が電気化学的
な反応をしないで、直接燃焼反応を起こすクロス
オーバーと呼ばれる現象が起こる。これは電池性
能の低下のみならず、極度なクロスオーバーは爆
発の危険性もある。そこで第１図では圧力容器２
内の圧力を基準とし、燃料極側及び酸化剤極側の
出口又は入口の圧力を差圧計３，４で検出し、こ
の信号を演算器５，６を介して予め与えられた差
圧設定値と比較し、その操作信号によりガス排出
弁７，８を調節して極間差圧のコントロールをし
ている。極間差圧の設定については燃料極側、酸
化剤極側とも基準圧（イナートガスの圧力）に対
して僅かに低くした状態となるように行われ、燃
料、または酸化剤のイナートガスへの漏出を防い
でいる。
An example of a conventional interelectrode differential pressure control method will be described with reference to FIG. The fuel cell body 1 is placed in a pressure vessel 2 and pressurized with inert gas. and,
The fuel cell is supplied with fuel and an oxidant. At this time, if the differential pressure between the fuel electrode and the oxidizer electrode exceeds the bubble pressure of the electrolytic solution, a phenomenon called crossover occurs in which the fuel and oxidizer do not undergo an electrochemical reaction but directly undergo a combustion reaction. This not only reduces battery performance but also poses a risk of explosion if the crossover is too extreme. Therefore, in Figure 1, pressure vessel 2
The pressure at the outlet or inlet of the fuel electrode side and the oxidizer electrode side is detected by the differential pressure gauges 3 and 4, and this signal is converted to a pre-given differential pressure set value via the calculators 5 and 6. Compared to this, the gas discharge valves 7 and 8 are adjusted based on the operation signal to control the differential pressure between the electrodes. The differential pressure between the electrodes is set so that both the fuel electrode side and the oxidizer electrode side are slightly lower than the standard pressure (inert gas pressure) to prevent leakage of fuel or oxidizer into the inert gas. Preventing.
差圧の制御方式は、この例で示した方法以外に
基準圧を燃料極側におき、それに対してイナート
ガスの圧力と酸化剤極側の圧力を制御する方法も
採用されている。他にも多くの制御方式が考えら
れるがいずれの制御方式においても、次のような
問題はさけられない。 In addition to the method shown in this example, a method for controlling the differential pressure has also been adopted in which a reference pressure is placed on the fuel electrode side and the pressure of the inert gas and the pressure on the oxidizer electrode side are controlled with respect to the reference pressure. Although many other control methods are possible, the following problems cannot be avoided in any control method.
すなわち、燃料極及び酸化剤極の極間差圧の最
適値は、クロスオーバーが最も少なくなるように
した差圧の設定値であるがこの最適値は、燃料電
池内部の構造、特にガスのシール状態、又、燃料
電池の運転条件（温度、圧力、負荷、供給ガス流
量等）、さらに、燃料電池内部状況の継時変化等
によつて、変化するものである。また、クロスオ
ーバー耐性に優れた燃料電池では、極間差圧の許
容幅が大であり若干の極間差圧がついてもクロス
オーバーによる燃料や酸化剤の浪費が起こりにく
いといつた傾向がある。したがつて、それぞれの
燃料電池について、又、ある一定の経過時間後
に、差圧の最適値を何等かの方法で求め、そし
て、極間差圧の設定値を修正、変更しなければな
らない。そこでそれぞれの燃料電池において、電
池の内部状況が変化した場合に自動的に修正が加
わり、常に最適設定値が維持されるようにした燃
料電池の極間差圧制御装置が望まれている。 In other words, the optimal value for the differential pressure between the fuel electrode and the oxidizer electrode is the set value of the differential pressure that minimizes crossover, but this optimal value depends on the internal structure of the fuel cell, especially the gas seal. It changes depending on the state, operating conditions of the fuel cell (temperature, pressure, load, supply gas flow rate, etc.), and changes over time in the internal situation of the fuel cell. In addition, fuel cells with excellent crossover resistance tend to have a wide allowable range of differential pressure between electrodes, so even if there is a slight differential pressure between electrodes, waste of fuel and oxidizer due to crossover is unlikely to occur. . Therefore, for each fuel cell and after a certain elapsed time, the optimal value of the differential pressure must be determined by some method, and the set value of the interelectrode differential pressure must be corrected or changed. Therefore, there is a need for a fuel cell interelectrode differential pressure control device that automatically makes corrections when the internal conditions of each fuel cell change and maintains the optimal set value at all times.
この発明は、上述した従来装置の欠点を改良し
たもので製作された燃料電池の内部構造（シール
状態）によらず、常に最適な（クロスオーバーが
最も少ない）極間差圧に制御され、さらに電池の
内部構造が時間とともに変化した場合に、それに
追随して、極間差圧の最適値も自動的に変化させ
ることのできる燃料電池の極間差圧制御装置を提
供することを目的とする。
This invention improves the shortcomings of the conventional device described above, and the interelectrode differential pressure is always controlled to the optimum (minimum crossover) regardless of the internal structure (sealing condition) of the fuel cell. An object of the present invention is to provide a fuel cell interelectrode differential pressure control device that can automatically change the optimum value of the interelectrode differential pressure in accordance with changes in the internal structure of the battery over time. .
本発明によれば、クロスオーバーを定量化する
手段として、燃料極（又は酸化剤極）に供給する
H2（又はO2）流量と燃料極（又は酸化剤極）から
排出されるH2（又はO2）流量、そして、その時の
負荷を測定し、H2（又はO2）のマスバランスを計
算し、クロスオーバーによつて消費されたH2（又
はO2）を求める。クロスオーバーによつて消費
されたH2流量は次式で求められる。
According to the present invention, as a means of quantifying crossover, the fuel electrode (or oxidizer electrode) is supplied with
Measure the H 2 (or O 2 ) flow rate, the H 2 (or O 2 ) flow rate discharged from the fuel electrode (or oxidizer electrode), and the load at that time, and calculate the H 2 (or O 2 ) mass balance. Calculate and determine the H 2 (or O 2 ) consumed by the crossover. The H 2 flow rate consumed by the crossover is determined by the following equation.
（供給H2流量）−（排出H2流量）−（負荷によつ
て消費されたH2流量）＝（クロスオーバーによつ
て消費されたH2流量） ……(1)
ここで負荷によつて消費されたH2流量はフア
ラデーの法則から理論的に計算することができ
る。このようにクロスオーバーによつて消費され
るH2流量を常に測定しながら、極間差圧の設定
をクロスオーバーによつて消費されるH2量が最
小となるように少しづつ変化させ、常に最適値に
収束するような自動制御装置を組み込むことによ
り、上記目的を達成した。 (Supply H 2 flow rate) - (Output H 2 flow rate) - (H 2 flow rate consumed by load) = (H 2 flow rate consumed by crossover) ...... (1) Here, depending on the load The H 2 flow rate consumed can be calculated theoretically from Faraday's law. In this way, while constantly measuring the flow rate of H 2 consumed by the crossover, the setting of the differential pressure between poles is changed little by little so that the amount of H 2 consumed by the crossover is minimized, and the The above objective was achieved by incorporating an automatic control device that converges to the optimum value.
以下、図面を参照して、この発明を詳細に説明
する。第２図はこの発明に係る燃料電池の極間差
圧制御装置の一実施例を示す構成図である。第２
図では燃料極側、酸化剤極側の両方に本発明によ
る極間差圧制御装置を適用した場合を示したが、
燃料極側、酸化剤極側のどちらか一方を適用して
も有効である。第２図において、燃料極側の演算
器９には、従来からあつた燃料極と基準圧（イナ
ートガス圧）との差圧を測定する差圧計１０から
の信号の他に供給されるH2流量を測定する供給
H2流量計１１からの信号と、排出されるH2流量
を測定する排出H2流量計１２からの信号、さら
に、負荷装置１３からの電流、または、電圧信号
および従来からあつた酸化剤極基準圧（イナート
ガス圧）との差圧を測定する差圧計１６からの信
号がそれぞれ入力される。これ等の信号をもと
に、演算器９内部でクロスオーバーによつて消費
されたH2量を算出し、その時の極間差圧の値と
比較し、クロスオーバーが減少するように極間差
圧の設定値を変更する。極間差圧の設定値変更の
信号は排出弁１４に送られ、その差圧になるよう
に、排出弁１４が開閉する。ここで、H2流量は、
実際には燃料流量、及びH2濃度を測定して得ら
れる。酸化剤極側の演算器１５も同様に差圧計１
６、供給O2流量計１７、排出O2流量計１８、負
荷１３および差圧計１０からの信号が入力され、
この信号をもとに演算器１５内部で適切な差圧値
が新たに設定され、その差圧になるように、排出
弁１９が開閉する。演算器９，１５の内部で演算
される内容を第３図に示す。まず、H2（又はO2）
の供給流量、排出流量及び負荷の信号が入力さ
れ、これ等の値から(1)式に従つてクロスオーバー
によつて消費されるH2（又はO2）の量を求める。
次に、最初はクロスオーバーの増減を比較するた
めの値がないため、差圧の設定値を微かに大き
く、（又は小さく）変更してみる。バルブは設定
値に従つて開閉する。差圧が設定値に安定した時
点で、再びクロスオーバーを計算し、前回のクロ
スオーバー量と比較する。このとき、増加すれば
逆方向に減少すれば同一方向にバルブを開閉す
る。このサイクルをクロスオーバーが最小になる
まで繰り返す。この最適な差圧の設定値は、H2
又はO2のどちらに着目しても同じはずであるが、
実際には両者の拡散係数の違いによつて微かに異
なる値を示すものと考えられる。この場合には、
高価なH2を重要視しH2側の最適な差圧の設定値
を用いるか、又は、両方の差圧の設定値を考慮
し、新たに最適値を見い出すかする方法がとられ
るべきである。
Hereinafter, the present invention will be explained in detail with reference to the drawings. FIG. 2 is a configuration diagram showing an embodiment of the interelectrode pressure differential control device for a fuel cell according to the present invention. Second
The figure shows a case where the interelectrode pressure differential control device according to the present invention is applied to both the fuel electrode side and the oxidizer electrode side.
It is also effective to apply it to either the fuel electrode side or the oxidizer electrode side. In FIG. 2, a calculation unit 9 on the fuel electrode side is supplied with an H 2 flow rate in addition to a conventional signal from a differential pressure gauge 10 that measures the differential pressure between the fuel electrode and the reference pressure (inert gas pressure). supply to measure
A signal from the H 2 flow meter 11 and a signal from the discharge H 2 flow meter 12 which measures the discharged H 2 flow rate, as well as a current or voltage signal from the load device 13 and a conventional oxidizer electrode. Signals from differential pressure gauges 16 that measure the differential pressure with respect to the reference pressure (inert gas pressure) are respectively input. Based on these signals, the amount of H2 consumed by the crossover is calculated inside the calculator 9, and compared with the value of the differential pressure between the poles at that time. Change the differential pressure setting. A signal for changing the set value of the interelectrode pressure difference is sent to the discharge valve 14, and the discharge valve 14 opens and closes so that the pressure difference is achieved. Here, the H2 flow rate is
It is actually obtained by measuring the fuel flow rate and H 2 concentration. Similarly, the computing unit 15 on the oxidizer electrode side is also connected to the differential pressure gauge 1.
6. Signals from supply O 2 flow meter 17, discharge O 2 flow meter 18, load 13 and differential pressure gauge 10 are input,
Based on this signal, an appropriate differential pressure value is newly set inside the computing unit 15, and the discharge valve 19 is opened and closed so that the differential pressure is reached. FIG. 3 shows the contents calculated inside the calculation units 9 and 15. First, H 2 (or O 2 )
The supply flow rate, discharge flow rate, and load signals are input, and the amount of H 2 (or O 2 ) consumed by the crossover is determined from these values according to equation (1).
Next, since there is no value to compare the increase or decrease in crossover at first, try changing the set value of the differential pressure slightly larger (or smaller). The valve opens and closes according to the set value. When the differential pressure stabilizes at the set value, the crossover is calculated again and compared with the previous crossover amount. At this time, if the value increases, the valve opens and closes in the opposite direction, and if it decreases, the valve opens and closes in the same direction. Repeat this cycle until crossover is minimized. This optimal differential pressure setting is H 2
It should be the same whether you focus on O 2 or O 2 ,
In reality, it is thought that they exhibit slightly different values due to the difference in their diffusion coefficients. In this case,
The method should be to place more emphasis on the expensive H 2 and use the optimal differential pressure setting on the H 2 side, or to consider both differential pressure settings and find a new optimal value. be.
以上のように、本発明によれば電池の内部構造
（シール状態）のバラツキ又は継時変化等によつ
て、最適な差圧の設定値が異なる場合に、常時、
クロスオーバー量を定量化しながら、このクロス
オーバー量が最小化するように、差圧の設定値を
自動的に最適値に修正させることができる。
As described above, according to the present invention, when the optimum differential pressure setting value differs due to variations in the internal structure (sealing state) of the battery or changes over time,
While quantifying the amount of crossover, the set value of the differential pressure can be automatically corrected to the optimum value so that the amount of crossover is minimized.
第１図は、従来法における燃料電池の極間差圧
制御装置のフロー図、第２図は、本発明に係る燃
料電池極間差圧制御装置の一実施例のフロー図、
第３図は、本発明に係る燃料電池極間差圧制御装
置の制御の流れを示した模式図である。
９，１５……演算器（演算手段）、１０，１６
……差圧計（差圧測定手段）、１１……供給H2流
量計（供給ガス流量測定手段）、１２……排出H2
流量計（排出ガス流量測定手段）、１３……負荷
装置（負荷測定手段）、１４，１９……排出弁
（排出量制御手段）、１７……供給O2流量計（供
給ガス流量測定手段）、１８……排出O2流量計
（排出ガス流量測定手段）。
FIG. 1 is a flowchart of a conventional fuel cell interelectrode pressure differential control device, and FIG. 2 is a flowchart of an embodiment of a fuel cell interelectrode pressure differential control device according to the present invention.
FIG. 3 is a schematic diagram showing the control flow of the fuel cell electrode differential pressure control device according to the present invention. 9, 15... Arithmetic unit (arithmetic means), 10, 16
... Differential pressure gauge (differential pressure measuring means), 11 ... Supply H 2 flow meter (supply gas flow rate measurement means), 12 ... Discharge H 2
Flowmeter (exhaust gas flow rate measuring means), 13... Load device (load measuring means), 14, 19... Discharge valve (emission amount control means), 17... Supply O 2 flow meter (supply gas flow rate measuring means) , 18...Exhaust O 2 flow meter (exhaust gas flow rate measuring means).
Claims (1)
とも一方のガス極側のガス流路に連設されこのガ
ス極に供給されるガス流量を測定する供給ガス流
量測定手段および前記ガス極から排出されるガス
流量を測定する排出ガス流量測定手段と、 前記ガス極から排出されるガス流量を制御する
排出量制御手段と、 前記燃料電池の電力負荷を測定するための負荷
測定手段と、 前記燃料極と酸化剤極との圧力差を測定する差
圧測定手段と、 前記供給ガス流量測定手段、排出ガス流量測定
手段、および負荷測定手段からの各々の出力信号
を受けて、前記ガス流路に流れている前記ガスの
前記燃料電池内の電池反応以外の反応で消費され
る消費量を演算するとともに、前記差圧測定手段
からの出力信号を受けて、その圧力差の値が設定
された許容差圧値の範囲内にあり、かつ前記演算
された消費量が最小となるように前記排出量制御
手段への排出量制御信号を出力する演算手段と、 から構成されることを特徴とする燃料電池極間差
圧制御装置。[Scope of Claims] 1. A supply gas flow rate measuring means that is connected to a gas flow path on the gas electrode side of at least one of the fuel electrode and the oxidizer electrode of a fuel cell and measures the gas flow rate supplied to the gas electrode; Exhaust gas flow rate measuring means for measuring the gas flow rate exhausted from the gas electrode; Emission amount control means for controlling the gas flow rate exhausted from the gas electrode; Load measuring means for measuring the power load of the fuel cell. and differential pressure measuring means for measuring the pressure difference between the fuel electrode and the oxidizer electrode, and receiving output signals from the supply gas flow rate measuring means, the exhaust gas flow rate measuring means, and the load measuring means, and Calculates the consumption amount of the gas flowing in the gas flow path consumed by reactions other than cell reactions within the fuel cell, and receives an output signal from the differential pressure measuring means to determine the value of the pressure difference. and a calculation means for outputting an emission control signal to the emission control means so that the consumption is within a set allowable differential pressure value and the calculated consumption is minimized. Features: Fuel cell electrode differential pressure control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57186165A JPS5975572A (en) | 1982-10-25 | 1982-10-25 | Controller for pressure difference across the electrodes of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57186165A JPS5975572A (en) | 1982-10-25 | 1982-10-25 | Controller for pressure difference across the electrodes of fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5975572A JPS5975572A (en) | 1984-04-28 |
| JPH043069B2 true JPH043069B2 (en) | 1992-01-21 |
Family
ID=16183521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57186165A Granted JPS5975572A (en) | 1982-10-25 | 1982-10-25 | Controller for pressure difference across the electrodes of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5975572A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60146467A (en) * | 1984-01-09 | 1985-08-02 | Fuji Electric Corp Res & Dev Ltd | Running control system for fuel battery power generating apparatus |
| JP2611428B2 (en) * | 1989-05-26 | 1997-05-21 | 富士電機株式会社 | Gas leak prevention device for fuel cell |
| US6103409A (en) * | 1998-02-10 | 2000-08-15 | General Motors Corporation | Fuel cell flooding detection and correction |
| AU2001275997A1 (en) * | 2000-07-20 | 2002-02-05 | Proton Energy Systems, Inc. | Electrochemical cell system output control method and apparatus |
-
1982
- 1982-10-25 JP JP57186165A patent/JPS5975572A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5975572A (en) | 1984-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10141587B2 (en) | Fuel cell system with cathode bypass valve and control method for fuel cell system | |
| US6033549A (en) | Method of electrolysis | |
| US11489181B2 (en) | Pressure control system and control method of fuel cell stack | |
| JPWO2015053156A1 (en) | Fuel cell system | |
| EP2717371B1 (en) | Fuel cell system | |
| JP4338914B2 (en) | Fuel circulation fuel cell system | |
| JP3517260B2 (en) | Fuel cell power generator and control method for fuel cell power generator | |
| JP2020187939A (en) | Redox flow battery system and how to operate the redox flow battery | |
| JPS5975572A (en) | Controller for pressure difference across the electrodes of fuel cell | |
| US20070138309A1 (en) | Non-linear cathode inlet/outlet humidity control | |
| JPS5853164A (en) | Fuel cell device | |
| CN117613319A (en) | Idle speed control method of fuel cell system and fuel cell system using same | |
| JP2948037B2 (en) | Fuel cell power plant | |
| EP1605539A3 (en) | Fuel cell system and method of controlling thereof | |
| JPH079812B2 (en) | Fuel cell | |
| JPS6260792B2 (en) | ||
| KR20190042311A (en) | System of fuel cell | |
| KR20230133076A (en) | Method and system for correcting offset of hydrogen pressure sensor in fuel cell | |
| JPH0714595A (en) | How to operate a fuel cell power generator | |
| JPS5887771A (en) | Air flow rate controlling device of fuel cell | |
| JPS5954176A (en) | Fuel cell generating system | |
| JPH0282459A (en) | Service control device for fuel cell | |
| CN121123320B (en) | A method and system for coordinated control of a flow battery pump based on parameter soft measurement | |
| JPH0325860A (en) | Reaction gas supply flow rate controller of fuel cell | |
| JPH06260199A (en) | Operation and control of fuel cell |