JP6855976B2 - 燃料電池システムの制御装置 - Google Patents
燃料電池システムの制御装置 Download PDFInfo
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Description
図1は、本発明の第1実施形態による燃料電池システム100及び燃料電池システム100を制御する電子制御ユニット200の概略構成図である。
アノード電極 : 2H2→4H++4e− …(1)
カソード電極 : 4H++4e−+O2 →2H2O …(2)
アノード電極 : C+2H2O→CO2+4H++4e− …(3)
カソード電極 : 4H++4e−+O2 →2H2O …(2)
アノード電極 : 2H2O→O2+4H++4e− …(4)
カソード電極 : 4H++4e−+O2 →2H2O …(2)
次に本発明の第2実施形態について説明する。本実施形態は、水素欠乏状態が解消したか否かを、水素欠乏状態と判定されてからの経過時間teに基づいて判定する点で、第1実施形態と相違する。以下、その相違点を中心に説明する。
次に本発明の第3実施形態について説明する。本実施形態は、水素欠乏状態が解消したか否かを、燃料電池スタック10の内部インピーダンス(HFR;High Frequency Resistance)Zに基づいて判定する点で、第1実施形態と相違する。以下、その相違点を中心に説明する。
次に本発明の第4実施形態について説明する。本実施形態は、水詰まりによって水素欠乏状態となっている単セル1が存在するおそれがあるか否かをさらに判定する点で、上記の各実施形態と相違する。以下、その相違点を中心に説明する。
50 電気負荷部
52 回路遮断器
100 燃料電池システム
200 電子制御ユニット(制御装置)
Claims (11)
- アノード電極に水電解触媒を含む燃料電池と、
前記燃料電池と電気的に接続される電気負荷部と、
前記燃料電池の正極側及び負極側の両出力端子と前記電気負荷部との電気的な接続を物理的に遮断する回路遮断器と、
を備える燃料電池システムの制御装置であって、
前記燃料電池に供給される水素量が、発電のために必要な水素量に対して不足する水素欠乏状態になっているか否かを判定する水素欠乏判定部と、
前記水素欠乏状態となっていると判定されたときに、その水素欠乏状態が解消したか否かを判定する水素欠乏解消判定部と、
前記水素欠乏状態が解消したと判定されたときに、前記回路遮断器によって前記燃料電池と前記電気負荷部との電気的な接続を一時的に遮断する遮断制御部と、
前記水素欠乏状態が解消したと判定されたときに、前記回路遮断器によって前記燃料電池の前記両出力端子と前記電気負荷部との電気的な接続を物理的に一時的に遮断する遮断制御部と、
を備える燃料電池システムの制御装置。 - 前記水素欠乏判定部は、
前記燃料電池の温度を代表する代表温度が、前記燃料電池内で水の凍結が生じるおそれのある所定の凍結判定温度未満のときに、前記水素欠乏状態となっていると判定する、
請求項1に記載の燃料電池システムの制御装置。 - 前記水素欠乏解消判定部は、
前記代表温度が前記凍結判定温度よりも高い所定の凍結解消判定温度以上になったときに、前記水素欠乏状態が解消したと判定する、
請求項2に記載の燃料電池システムの制御装置。 - 前記水素欠乏解消判定部は、
前記水素欠乏状態と判定されてからの経過時間が、前記水素欠乏状態と判定されたときの前記代表温度に基づいて設定される凍結解消判定時間以上となったときに、前記水素欠乏状態が解消したと判定する、
請求項2に記載の燃料電池システムの制御装置。 - 前記水素欠乏解消判定部は、
前記水素欠乏状態と判定されたときの前記代表温度が高いときに比べて低いときの方が、前記凍結解消判定時間を長くする、
請求項4に記載の燃料電池システムの制御装置。 - 前記水素欠乏解消判定部は、
前記燃料電池の電解質膜の湿潤度が所定の湿潤度以下になったときに、前記水素欠乏状態が解消したと判定する、
請求項2に記載の燃料電池システムの制御装置。 - 前記水素欠乏解消判定部は、
前記燃料電池の内部インピーダンスの微分値が所定値以上になったときに、前記燃料電池の電解質膜の湿潤度が所定の湿潤度以下になったと判定する、
請求項6に記載の燃料電池システムの制御装置。 - 前記水素欠乏判定部は、
前記燃料電池の温度を代表する代表温度が、前記燃料電池内で水の凍結が生じるおそれのある所定の凍結判定温度未満のときに、水の凍結に起因して前記水素欠乏状態になっていると判定する第1判定部と、
前記代表温度が前記凍結判定温度以上であって、かつ前記燃料電池内の水素流通路で水詰まりが生じるおそれのある所定の水詰まり判定温度未満の場合において、前記燃料電池の内部インピーダンスの微分値が所定値以上になったときに、水詰まりに起因して前記水素欠乏状態になっていると判定する第2判定部と、
を備え、
前記水素欠乏解消判定部は、
水詰まりに起因して前記水素欠乏状態になっていると判定されたときは、前記燃料電池に供給する水素量を一時的に増量して水詰まりを解消する水詰まり解消運転を所定時間実施したときに、前記水素欠乏状態が解消したと判定する、
請求項1に記載の燃料電池システムの制御装置。 - 前記回路遮断器によって前記燃料電池と前記電気負荷部との電気的な接続を一時的に遮断する遮断時間は、1ミリ秒以上30分以下である、
請求項1から請求項8までのいずれか1項に記載の燃料電池システムの制御装置。 - 前記遮断時間は、1ミリ秒以上1分以下である、
請求項9に記載の燃料電池システムの制御装置。 - 前記遮断時間は、1ミリ秒以上3秒以下である、
請求項10に記載の燃料電池システムの制御装置。
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Application Number | Priority Date | Filing Date | Title |
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JP2017156672A JP6855976B2 (ja) | 2017-08-14 | 2017-08-14 | 燃料電池システムの制御装置 |
US16/030,096 US11158873B2 (en) | 2017-08-14 | 2018-07-09 | Control device for fuel cell system |
CN201810796291.8A CN109390595B (zh) | 2017-08-14 | 2018-07-19 | 燃料电池系统的控制装置 |
DE102018117466.7A DE102018117466A1 (de) | 2017-08-14 | 2018-07-19 | Steuerungsvorrichtung für ein brennstoffzellensystem |
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ES2209949T3 (es) | 1999-08-23 | 2004-07-01 | Ballard Power Systems Inc. | Estructura anodica de pila de combustible para la tolerancia a la inversion de tension. |
US6936370B1 (en) * | 1999-08-23 | 2005-08-30 | Ballard Power Systems Inc. | Solid polymer fuel cell with improved voltage reversal tolerance |
DE10006781A1 (de) * | 2000-02-18 | 2002-03-14 | Xcellsis Gmbh | Vorrichtung mit einer Brennstoffzelle für die Erzeugung elektrischer Energie und mit Verteilung der elektrischen Energie an Verbraucher |
JP2007109428A (ja) * | 2005-10-11 | 2007-04-26 | Nissan Motor Co Ltd | 燃料電池システム |
JP2007335268A (ja) * | 2006-06-15 | 2007-12-27 | Toyota Motor Corp | 燃料電池システム及び燃料電池の運転方法 |
JP2008147102A (ja) * | 2006-12-13 | 2008-06-26 | Toyota Motor Corp | 燃料電池システム |
JP5070830B2 (ja) * | 2006-12-15 | 2012-11-14 | トヨタ自動車株式会社 | 燃料電池システム |
JP5435320B2 (ja) | 2007-02-09 | 2014-03-05 | トヨタ自動車株式会社 | 燃料電池システムおよび燃料電池システムの制御方法 |
JP2010205483A (ja) * | 2009-03-02 | 2010-09-16 | Toyota Motor Corp | 燃料電池システム、および、燃料電池の過熱状態検出方法 |
WO2011004780A1 (ja) * | 2009-07-07 | 2011-01-13 | 日産自動車株式会社 | 燃料電池パワープラントの運転制御装置及び運転制御方法 |
JP2011134529A (ja) * | 2009-12-24 | 2011-07-07 | Toyota Motor Corp | 燃料電池システム |
CA2738530C (en) * | 2010-08-02 | 2012-10-16 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system |
KR101202880B1 (ko) * | 2012-07-16 | 2012-11-19 | 차원준 | 막전극 접합체를 이용한 연료전지 실험장치 |
GB2543268A (en) * | 2015-10-09 | 2017-04-19 | Intelligent Energy Ltd | Overload protection device |
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CN109390595B (zh) | 2021-08-24 |
DE102018117466A1 (de) | 2019-02-14 |
CN109390595A (zh) | 2019-02-26 |
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