JP2007048575A - 燃料電池システム、および燃料電池における燃料極窒素濃度の推定方法 - Google Patents
燃料電池システム、および燃料電池における燃料極窒素濃度の推定方法 Download PDFInfo
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Abstract
【解決手段】燃料電池スタック20の温度を検出するスタック温度検出手段11と、燃料極の圧力を検出する燃料極圧力検出手段P5と、放置時間を計測する放置時間計測手段12とを備える。燃料電池の燃料極における窒素(例えば、電解質膜を透過して酸素極から燃料極まで達した窒素など)の濃度を表す燃料極窒素濃度を、運転停止時における燃料電池スタック20の温度と、燃料電池の再起動時における燃料極の圧力と、燃料電池が停止してから再起動されるまでの放置時間とに基づいて推定する。
【選択図】 図1
Description
cncN2 = cncN2 tmp * prsH2 fc b / prsH2 fc a
という式、つまり、水素加圧前のアノード窒素濃度(cncN2 tmp)と水素加圧後のアノード圧力(prsH2 fc b)とを乗じ、これを水素加圧後のアノード圧力(prsH2 fc a)で除した値として求めることができる。これにより、アノードパージ処理による窒素濃度減算を行い(ステップ14)、これによって一連の処理を終了する(ステップ15)。あとは、このようにして得られたアノード窒素濃度の推定結果(あるいは算出結果)に基づいて燃料電池スタック20の出力制限を適切に行うこととなり、これによれば、アノードの不純物濃度が高い状態での過度な発電を抑制することが可能となる。
Claims (7)
- 燃料電池の燃料極における窒素の濃度を表す燃料極窒素濃度を、運転停止時における燃料電池スタックの温度と、燃料電池の再起動時における前記燃料極の圧力と、前記燃料電池が停止してから再起動されるまでの放置時間と、に基づき推定することを特徴とする燃料電池システム。
- 前記燃料電池スタックの温度を検出するスタック温度検出手段と、
前記燃料極の圧力を検出する燃料極圧力検出手段と、
前記放置時間を計測する放置時間計測手段と、
を備えていることを特徴とする請求項1に記載の燃料電池システム。 - 運転停止時における前記燃料電池スタックの温度と、当該温度のときにおける該燃料電池スタックの放置時間−前記燃料極の圧力の関係を表すマップとに基づいて燃料極窒素濃度を推定することを特徴とする請求項1または2に記載の燃料電池システム。
- 前記マップとして、前記燃料極窒素濃度が第1の濃度状態にある場合の関係を表す第1マップと、前記燃料極窒素濃度が前記第1の濃度状態よりも高濃度の状態にある場合の関係を表す第2マップとを用い、前記放置時間が、前記燃料極の圧力が最低値となるまでの時間よりも短い場合には前記第1マップを用いる一方、前記放置時間が、前記燃料極の圧力が最低値となるまでの時間よりも長い場合には前記第2マップを用いて前記燃料極窒素濃度を推定することを特徴とする請求項3に記載の燃料電池システム。
- 前記放置時間の計測中、前記放置時間計測手段よる計測時間がクリアされたかどうかを判別するための判別手段を備え、当該計測時間がクリアされたと判別した場合には前記燃料極窒素濃度を前記マップ中における最大値に擬制することを特徴とする請求項3または4に記載の燃料電池システム。
- 前記燃料電池の運転停止時における前記燃料極窒素濃度を記憶するための記憶手段を備え、運転停止時の当該燃料極窒素濃度の記憶値と再起動時の燃料極窒素濃度の推定値のうち大きい方の値を採用することを特徴とする請求項1から5のいずれかに記載の燃料電池システム。
- 燃料電池の燃料極における窒素の濃度を表す燃料極窒素濃度を、運転停止時における燃料電池のスタックの温度と、燃料電池の再起動時における前記燃料極の圧力と、前記燃料電池が停止してから再起動されるまでの放置時間と、に基づき推定することを特徴とする燃料電池における燃料極窒素濃度の推定方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005231349A JP4894994B2 (ja) | 2005-08-09 | 2005-08-09 | 燃料電池システム |
DE112006001778.0T DE112006001778B4 (de) | 2005-08-09 | 2006-07-27 | Verfahren zum Schätzen einer Stickstoffkonzentration auf einer Brennstoffelektrode einer Brennstoffzelle |
PCT/JP2006/315360 WO2007018106A1 (ja) | 2005-08-09 | 2006-07-27 | 燃料電池システム、および燃料電池における燃料極窒素濃度の推定方法 |
US11/920,702 US7736814B2 (en) | 2005-08-09 | 2006-07-27 | Fuel-cell system and method of estimating nitrogen concentration on fuel electrode of fuel cell |
CN2006800281634A CN101233644B (zh) | 2005-08-09 | 2006-07-27 | 燃料电池系统和估计燃料电池的燃料电极上的氮浓度的方法 |
KR1020087003043A KR100987715B1 (ko) | 2005-08-09 | 2006-07-27 | 연료전지시스템 및 연료전지 내의 연료극의 질소 농도를예측하는 방법 |
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JP2005231349A JP4894994B2 (ja) | 2005-08-09 | 2005-08-09 | 燃料電池システム |
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JP2007048575A true JP2007048575A (ja) | 2007-02-22 |
JP4894994B2 JP4894994B2 (ja) | 2012-03-14 |
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US (1) | US7736814B2 (ja) |
JP (1) | JP4894994B2 (ja) |
KR (1) | KR100987715B1 (ja) |
CN (1) | CN101233644B (ja) |
DE (1) | DE112006001778B4 (ja) |
WO (1) | WO2007018106A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009078269A1 (ja) * | 2007-12-14 | 2009-06-25 | Toyota Jidosha Kabushiki Kaisha | 燃料電池システム |
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DE102009057130A1 (de) | 2009-12-08 | 2011-06-09 | Heinrich-Heine-Universität Düsseldorf | Verfahren zur Analyse der Zusammensetzung von Gasgemischen |
PL2530780T3 (pl) * | 2011-06-01 | 2015-08-31 | Belenos Clean Power Holding Ag | Sposób zarządzania działaniem systemu hybrydowego |
US8974975B2 (en) * | 2011-08-09 | 2015-03-10 | GM Global Technology Operations LLC | Method to correct for permeation uncertainties using a concentration sensor |
KR101519764B1 (ko) * | 2013-12-30 | 2015-05-12 | 현대자동차주식회사 | 수소 저장 시스템의 퍼징 제어 장치 및 방법 |
KR101679970B1 (ko) | 2015-05-11 | 2016-11-25 | 현대자동차주식회사 | 연료전지 차량의 퍼지밸브 제어 장치 및 그 방법 |
CN109698366B (zh) * | 2017-10-23 | 2021-01-12 | 上海汽车集团股份有限公司 | 一种燃料电池阳极流道氮浓度估计方法及装置 |
US10757843B2 (en) * | 2018-01-12 | 2020-08-25 | Ford Global Technologies, Llc | Vehicular traction inverter temperature control system |
DE102020115834A1 (de) | 2020-06-16 | 2021-12-16 | Audi Aktiengesellschaft | Verfahren zum Ermitteln der Brennstoffkonzentration in einem Anodenkreislauf, Brennstoffzellenvorrichtung und Kraftfahrzeug |
CN111864232B (zh) * | 2020-08-03 | 2021-12-21 | 上海重塑能源科技有限公司 | 气体纯度检测方法及供氢系统的氢气纯度检测装置 |
CN113948743B (zh) * | 2021-09-29 | 2023-03-17 | 北京亿华通科技股份有限公司 | 一种车载燃料电池的温度调控方法及装置 |
CN114335614B (zh) * | 2021-12-28 | 2023-11-24 | 上海捷氢科技股份有限公司 | 一种燃料电池存储装置及燃料电池停机存储方法 |
CN114614050B (zh) * | 2022-01-27 | 2023-09-26 | 东风汽车集团股份有限公司 | 燃料电池吹扫方法、装置、终端设备及介质 |
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JP2004342386A (ja) * | 2003-05-14 | 2004-12-02 | Toyota Motor Corp | 燃料電池システムの運転制御 |
JP2005203143A (ja) * | 2004-01-13 | 2005-07-28 | Toyota Motor Corp | 燃料電池システム |
JP2006209996A (ja) * | 2005-01-25 | 2006-08-10 | Nissan Motor Co Ltd | 燃料電池システム |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009078269A1 (ja) * | 2007-12-14 | 2009-06-25 | Toyota Jidosha Kabushiki Kaisha | 燃料電池システム |
US8415063B2 (en) | 2007-12-14 | 2013-04-09 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system |
Also Published As
Publication number | Publication date |
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CN101233644A (zh) | 2008-07-30 |
DE112006001778B4 (de) | 2017-09-14 |
US7736814B2 (en) | 2010-06-15 |
KR20080028482A (ko) | 2008-03-31 |
JP4894994B2 (ja) | 2012-03-14 |
DE112006001778T5 (de) | 2008-06-19 |
CN101233644B (zh) | 2012-05-23 |
US20090104502A1 (en) | 2009-04-23 |
WO2007018106A1 (ja) | 2007-02-15 |
KR100987715B1 (ko) | 2010-10-13 |
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