JP5081573B2 - 燃料電池システムの負荷減少時の運転方法 - Google Patents
燃料電池システムの負荷減少時の運転方法 Download PDFInfo
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Description
16…原燃料供給装置 18…酸化剤ガス供給装置
20…水供給装置 22…電力変換装置
24…制御装置 28…電解質・電極接合体
30…セパレータ 32…燃料電池
34…燃料電池スタック 36…熱交換器
38…蒸発器 40…改質器
52…空気供給管 56…原燃料通路
58…水通路 72a〜72c…温度センサ
74a〜74c…流量センサ
Claims (13)
- 燃料ガスと酸化剤ガスとの電気化学反応により発電する燃料電池モジュールと、
前記燃料電池モジュールに前記燃料ガスを供給する燃料ガス供給装置と、
前記燃料電池モジュールに前記酸化剤ガスを供給する酸化剤ガス供給装置と、
前記燃料電池モジュールに水を供給する水供給装置と、
前記燃料電池モジュールで発生した直流電力を要求仕様電力に変換する電力変換装置と、
前記燃料電池モジュールの発電量を制御する制御装置と、
を備える燃料電池システムの負荷減少時の運転方法であって、
前記燃料電池モジュールの目標発電量を設定する第1の工程と、
前記燃料電池モジュールに供給する前記酸化剤ガスを増加させる第2の工程と、
前記第2の工程が開始された後、前記燃料電池モジュールの発電量を減少させる第3の工程と、
前記第3の工程が開始された後、少なくとも前記燃料電池モジュールに供給される前記燃料ガスの流量又は前記燃料電池モジュールの電流に基づいて前記燃料電池モジュールの燃料利用率が設定範囲内であると判断された際、前記燃料電池モジュールに供給する前記燃料ガスを減少させる第4の工程と、
前記第4の工程が開始された後、前記燃料電池モジュールに供給する前記水を減少させる第5の工程と、
前記第5の工程が開始された後、前記燃料電池モジュールに供給する前記酸化剤ガスを減少させる第6の工程と、
前記第6の工程が開始された後、前記燃料電池モジュールの発電量が前記目標発電量以下に至ったか否かを検出する第7の工程と、
を有することを特徴とする燃料電池システムの負荷減少時の運転方法。 - 請求項1記載の運転方法において、前記燃料電池モジュールは、電解質をアノード電極とカソード電極とで挟んで構成される電解質・電極接合体とセパレータとが積層される燃料電池を設け、複数の前記燃料電池が積層される燃料電池スタックと、
前記酸化剤ガスを前記燃料電池スタックに供給する前に加熱する熱交換器と、
炭化水素を主体とする前記燃料ガスである原燃料と前記水を蒸発させた水蒸気との混合燃料を生成する蒸発器と、
前記混合燃料を改質して改質ガスを生成する改質器と、
を有することを特徴とする燃料電池システムの負荷減少時の運転方法。 - 請求項1又は2記載の運転方法において、前記第2の工程では、前記燃料電池モジュールに供給する前記酸化剤ガスを連続的又は段階的に増加させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項2記載の運転方法において、前記第3の工程では、前記燃料電池スタックの温度が設定温度内であると判断された際、前記燃料電池モジュールの発電量を減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項1〜4のいずれか1項に記載の運転方法において、前記第3の工程では、前記燃料電池モジュールの発電量を連続的又は段階的に減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項1〜5のいずれか1項に記載の運転方法において、前記第4の工程では、前記燃料電池モジュールに供給する前記燃料ガスを連続的又は段階的に減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項2又は4記載の運転方法において、前記第5の工程では、少なくとも前記燃料電池モジュールに供給される前記燃料ガスの流量、前記水の流量、前記蒸発器の温度又は前記改質器の温度に基づいて前記燃料電池モジュールが炭素析出にならないと判断された際、前記燃料電池モジュールに供給する前記水を減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項1〜7のいずれか1項に記載の運転方法において、前記第5の工程では、前記燃料電池モジュールに供給する前記水を連続的又は段階的に減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項2、4又は7記載の運転方法において、前記第6の工程では、前記燃料電池スタックの温度が設定温度内であると判断された際、前記燃料電池モジュールに供給する前記酸化剤ガスを減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項1〜9のいずれか1項に記載の運転方法において、前記第6の工程では、少なくとも前記燃料電池モジュールに供給される前記酸化剤ガスの流量、前記燃料ガスの流量又は前記燃料電池モジュールの電流に基づいて前記燃料電池モジュールが空気枯渇にならないと判断された際、前記燃料電池モジュールに供給する前記酸化剤ガスを減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項1〜10のいずれか1項に記載の運転方法において、前記第6の工程では、前記燃料電池モジュールに供給する前記酸化剤ガスを連続的又は段階的に減少させることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項1〜11のいずれか1項に記載の運転方法において、前記第7の工程では、前記発電量が前記目標発電量超過であると判断された際、前記第2の工程に戻ることを特徴とする燃料電池システムの負荷減少時の運転方法。
- 請求項1〜12のいずれか1項に記載の運転方法において、前記燃料電池は、固体酸化物形燃料電池であることを特徴とする燃料電池システムの負荷減少時の運転方法。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007275211A JP5081573B2 (ja) | 2007-10-23 | 2007-10-23 | 燃料電池システムの負荷減少時の運転方法 |
| US12/738,505 US9105895B2 (en) | 2007-10-23 | 2008-10-16 | Operation method at the time of load reduction of fuel cell system |
| DE602008006442T DE602008006442D1 (de) | 2007-10-23 | 2008-10-16 | Betriebsverfahren zum zeitpunkt der lastverringerung eines brennstoffzellensystems |
| EP08842851A EP2203950B1 (en) | 2007-10-23 | 2008-10-16 | Operation method at the time of load reduction of fuel cell system |
| AT08842851T ATE506709T1 (de) | 2007-10-23 | 2008-10-16 | Betriebsverfahren zum zeitpunkt der lastverringerung eines brennstoffzellensystems |
| PCT/JP2008/069169 WO2009054425A1 (en) | 2007-10-23 | 2008-10-16 | Operation method at the time of load reduction of fuel cell system |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2007275211A JP5081573B2 (ja) | 2007-10-23 | 2007-10-23 | 燃料電池システムの負荷減少時の運転方法 |
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| Publication Number | Publication Date |
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| JP2009104885A JP2009104885A (ja) | 2009-05-14 |
| JP5081573B2 true JP5081573B2 (ja) | 2012-11-28 |
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| US (1) | US9105895B2 (ja) |
| EP (1) | EP2203950B1 (ja) |
| JP (1) | JP5081573B2 (ja) |
| AT (1) | ATE506709T1 (ja) |
| DE (1) | DE602008006442D1 (ja) |
| WO (1) | WO2009054425A1 (ja) |
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| JP2010118178A (ja) * | 2008-11-11 | 2010-05-27 | Honda Motor Co Ltd | 燃料電池システムの制御方法 |
| JP6265829B2 (ja) * | 2014-05-19 | 2018-01-24 | パナソニック株式会社 | 燃料電池システム及び燃料電池システムの運転方法 |
| JP6390253B2 (ja) * | 2014-08-06 | 2018-09-19 | 日産自動車株式会社 | 燃料電池発電システム |
| CN107464944B (zh) | 2016-05-27 | 2021-02-02 | 通用电气公司 | 燃料电池系统及其操作方法 |
| DE102022207195A1 (de) | 2022-07-14 | 2024-01-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Lastreduktionsbegrenzung im Hochtemperaturbetrieb |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2846205B2 (ja) | 1993-02-04 | 1999-01-13 | 溶融炭酸塩型燃料電池発電システム技術研究組合 | 溶融炭酸塩型燃料電池用燃料供給方法 |
| JPH0722045A (ja) | 1993-07-05 | 1995-01-24 | Ishikawajima Harima Heavy Ind Co Ltd | 燃料電池発電装置の制御方法 |
| US5360679A (en) * | 1993-08-20 | 1994-11-01 | Ballard Power Systems Inc. | Hydrocarbon fueled solid polymer fuel cell electric power generation system |
| US6306531B1 (en) * | 1999-07-06 | 2001-10-23 | General Motors Corporation | Combustor air flow control method for fuel cell apparatus |
| JP3480451B2 (ja) * | 2001-05-22 | 2003-12-22 | 日産自動車株式会社 | 燃料電池システム |
| JP2003086225A (ja) | 2001-09-12 | 2003-03-20 | Nippon Telegr & Teleph Corp <Ntt> | 固体酸化物形燃料電池およびその運転方法 |
| JP3801022B2 (ja) * | 2001-11-08 | 2006-07-26 | 日産自動車株式会社 | 燃料電池の低温起動方法 |
| US7306868B2 (en) * | 2003-10-02 | 2007-12-11 | Hewlett-Packard Development Company, L.P. | Integrated fuel cell stack and catalytic combustor apparatus, assembly, and method of use |
| JP2006032136A (ja) * | 2004-07-16 | 2006-02-02 | Denso Corp | 燃料電池システム |
| JP4761182B2 (ja) * | 2004-09-22 | 2011-08-31 | トヨタ自動車株式会社 | 燃料電池システム |
| JP2006302791A (ja) | 2005-04-25 | 2006-11-02 | Aisin Seiki Co Ltd | 燃料電池システム |
-
2007
- 2007-10-23 JP JP2007275211A patent/JP5081573B2/ja not_active Expired - Fee Related
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- 2008-10-16 EP EP08842851A patent/EP2203950B1/en not_active Not-in-force
- 2008-10-16 AT AT08842851T patent/ATE506709T1/de not_active IP Right Cessation
- 2008-10-16 WO PCT/JP2008/069169 patent/WO2009054425A1/en not_active Ceased
- 2008-10-16 DE DE602008006442T patent/DE602008006442D1/de active Active
- 2008-10-16 US US12/738,505 patent/US9105895B2/en active Active
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| Publication number | Publication date |
|---|---|
| US20100221621A1 (en) | 2010-09-02 |
| WO2009054425A1 (en) | 2009-04-30 |
| DE602008006442D1 (de) | 2011-06-01 |
| JP2009104885A (ja) | 2009-05-14 |
| US9105895B2 (en) | 2015-08-11 |
| EP2203950A1 (en) | 2010-07-07 |
| EP2203950B1 (en) | 2011-04-20 |
| ATE506709T1 (de) | 2011-05-15 |
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