JP5665628B2 - 燃料電池システムの起動制御方法 - Google Patents
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Description
以上説明したように上述した実施形態係る燃料電池システム10の起動制御方法は、カソード側に供給される酸化剤ガス及びアノード側に供給される燃料ガスの電気化学反応により発電する燃料電池20と、燃料電池20に前記酸化剤ガスを供給する酸化剤ガス供給装置14と、燃料電池20に前記燃料ガスを供給する燃料ガス供給装置16と、を備える。
14…酸化剤ガス供給装置 15…アノード掃気装置
16…燃料ガス供給装置 17…バッテリ
18…コントローラ 19…タイマ
20…燃料電池 22…固体高分子電解質膜
24…カソード電極 26…アノード電極
28…電解質膜・電極構造体 30、32…セパレータ
34…酸化剤ガス流路 36…燃料ガス流路
38a…酸化剤ガス入口連通孔 38b…酸化剤ガス出口連通孔
40a…燃料ガス入口連通孔 40b…燃料ガス出口連通孔
50…エアポンプ 52…空気供給流路
53…空気導入流路 54…加湿器
55…空気導入弁 56…空気排出流路
58…背圧制御弁 59…排出弁
60…希釈ボックス 62…水素タンク
63…インタンク電磁弁 64…水素供給流路
65…遮断弁 66…エゼクタ
68…水素循環路 70…オフガス流路
72…パージ弁 74…排出流路
86…FCコンタクタ 90…DC/DCコンバータ
92…バッテリコンタクタ 96…ダウンバータ
98…12V電源 102、103…圧力センサ
104、106…温度センサ 108…電圧センサ
110…電流センサ 112…プランジャ
114…スプリング 120…弁体
124、128…ポート
Claims (4)
- カソード側に供給される酸化剤ガス及びアノード側に供給される燃料ガスの電気化学反応により発電する燃料電池と、
前記燃料電池に前記酸化剤ガスを供給する酸化剤ガス供給装置と、
前記燃料電池に前記燃料ガスを供給する燃料ガス供給装置と、
エアポンプに入力ポートが連通し、前記燃料電池の前記アノード側に出力ポートが連通する掃気弁を有し、前記エアポンプから前記掃気弁の入力ポート及び出力ポートを介して前記アノード側に掃気ガスを導入して該アノードを掃気するアノード掃気装置と、を備え、
前記掃気弁は、弾性力により弁体が閉弁し、前記弾性力を上回る電磁力により前記弁体が開弁するノーマルクローズ型であり、
前記燃料電池の運転停止指令を検出したとき、前記燃料ガスの供給を停止する一方、前記酸化剤ガスを燃料電池に供給しながら前記燃料電池を発電させる停止時発電処理を実施した後に前記燃料電池の発電を停止し、
その後に燃料電池システムの起動指令を検出したとき、
前記燃料電池の前記アノードの圧力が、前記酸化剤ガス供給装置による前記酸化剤ガスの供給により前記弁体が開弁してしまう第1閾値圧力以下の場合には、前記酸化剤ガス供給装置による前記酸化剤ガスの供給を開始する前に、前記燃料ガス供給装置から前記燃料ガスの供給を開始し、前記燃料ガスの供給を開始したときから、前記アノードの圧力が前記第1閾値圧力を上回るのに必要十分な予め定められる時間後に、前記酸化剤ガスの供給を開始する第1起動処理を行う
ことを特徴とする燃料電池システムの起動制御方法。 - カソード側に供給される酸化剤ガス及びアノード側に供給される燃料ガスの電気化学反応により発電する燃料電池と、
前記燃料電池に前記酸化剤ガスを供給する酸化剤ガス供給装置と、
前記燃料電池に前記燃料ガスを供給する燃料ガス供給装置と、
エアポンプに入力ポートが連通し、前記燃料電池の前記アノード側に出力ポートが連通する掃気弁を有し、前記エアポンプから前記掃気弁の入力ポート及び出力ポートを介して前記アノード側に掃気ガスを導入して該アノードを掃気するアノード掃気装置と、を備え、
前記掃気弁は、弾性力により弁体が閉弁し、前記弾性力を上回る電磁力により前記弁体が開弁するノーマルクローズ型であり、
前記燃料電池の運転停止指令を検出したとき、前記燃料ガスの供給を停止する一方、前記酸化剤ガスを前記燃料電池に供給しながら前記燃料電池を発電させる停止時発電処理を実施した後に前記燃料電池の発電を停止し、
その後に前記燃料電池システムの起動指令を検出したとき、
前記停止時発電処理を実施した後に前記燃料電池の発電を停止したときのアノードの圧力が圧力センサによる測定下限値である第2閾値以下の圧力であって、かつ前記燃料電池の発電を停止したときからの経過時間が前記酸化剤ガス供給装置による前記酸化剤ガスの供給により前記弁体が開弁してしまう第1閾値圧力以下の圧力になっていることが想定される規定時間範囲内である場合には、前記酸化剤ガス供給装置による前記酸化剤ガスの供給を開始する前に、まず、前記燃料ガス供給装置から前記燃料ガスの供給を開始し、開始したときから予め定められる時間後に、前記酸化剤ガスの供給を開始する第2起動処理を行う
ことを特徴とする燃料電池システムの起動制御方法。 - 請求項2記載の燃料電池システムの起動制御方法において、
前記燃料電池システムは、さらに、前記燃料電池のアノード側に掃気ガスを導入して該アノードを掃気するアノード掃気装置を備え、
前記停止時発電処理を実施した後に前記燃料電池の発電を停止し、その後に前記燃料電池システムの起動指令を検出したとき、
前記停止時発電処理を実施した後に前記燃料電池の発電を停止したときのアノードの圧力が前記第2閾値以下の圧力であって、かつ前記燃料電池の発電を停止したときからの経過時間が、前記規定時間範囲に入る前の時間、又は前記規定時間範囲が終わる前の時間に、前記アノード掃気装置が作動した場合には、前記第2起動処理を中止し、
前記酸化剤ガス供給装置による前記酸化剤ガスの供給開始を前記燃料ガス供給装置による燃料ガスの供給開始よりも早くする第3起動処理を行う
ことを特徴とする燃料電池システムの起動制御方法。 - 請求項2記載の燃料電池システムの起動制御方法において、
前記規定時間範囲に入るまでの時間が、
前記停止時発電処理を実施した後に前記燃料電池の発電を停止したときの前記アノードの温度及び湿度を考慮して予め定められる特性に基づき、高温高湿の場合には低温低湿の場合に比べて、短い時間に設定される
ことを特徴とする燃料電池システムの起動制御方法。
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JP2011078451A JP5665628B2 (ja) | 2011-03-31 | 2011-03-31 | 燃料電池システムの起動制御方法 |
US13/423,276 US9130202B2 (en) | 2011-03-31 | 2012-03-19 | Method for controlling fuel cell system with in-stop-mode power generating process and startup process |
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CN103413957B (zh) * | 2013-08-26 | 2016-01-20 | 中国东方电气集团有限公司 | 燃料电池*** |
WO2015072229A1 (ja) * | 2013-11-14 | 2015-05-21 | 日産自動車株式会社 | 燃料電池システム |
KR101684118B1 (ko) | 2015-05-27 | 2016-12-07 | 현대자동차주식회사 | 연료전지의 퍼지방법 |
KR102406510B1 (ko) * | 2017-07-03 | 2022-06-10 | 현대자동차주식회사 | 연료전지 시스템용 수소 공급 방법 |
KR102496644B1 (ko) | 2017-10-17 | 2023-02-07 | 현대자동차주식회사 | 연료전지 시스템 및 그 제어방법 |
JP7117279B2 (ja) * | 2019-09-09 | 2022-08-12 | 本田技研工業株式会社 | 燃料電池車両及び該車両の停止時掃気時間の設定方法 |
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JP2004022487A (ja) | 2002-06-20 | 2004-01-22 | Nissan Motor Co Ltd | 燃料電池システム |
JP4608250B2 (ja) * | 2004-07-02 | 2011-01-12 | 本田技研工業株式会社 | 燃料電池システムおよびその起動方法 |
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US7858251B2 (en) * | 2005-10-21 | 2010-12-28 | Honda Motor Co., Ltd. | Fuel cell system and scavenging method for use in a fuel cell system |
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JP2008277215A (ja) * | 2007-05-07 | 2008-11-13 | Toyota Motor Corp | 燃料電池システムおよびその制御方法 |
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JP5711010B2 (ja) * | 2011-03-04 | 2015-04-30 | 本田技研工業株式会社 | 燃料電池システムの運転停止方法 |
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