JPWO2019026149A1 - 電源システム及びその制御方法 - Google Patents
電源システム及びその制御方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 65
- 239000000446 fuel Substances 0.000 claims abstract description 189
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 238000010248 power generation Methods 0.000 claims description 37
- 230000001172 regenerating effect Effects 0.000 claims description 28
- 230000007704 transition Effects 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 13
- 238000010792 warming Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 56
- 238000001514 detection method Methods 0.000 description 30
- 230000008569 process Effects 0.000 description 22
- 230000007423 decrease Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 239000007800 oxidant agent Substances 0.000 description 9
- 230000001590 oxidative effect Effects 0.000 description 9
- 238000001994 activation Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
- H01M16/006—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers of fuel cells with rechargeable batteries
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- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
図1は、本発明の第1実施形態における電源システム100の構成の一例を示す構成図である。
図7は、本発明の第2実施形態におけるコントローラ30の主要な機能構成の一例を示すブロック図である。
図10は、本発明の第3実施形態における充電/放電判断部320の機能構成の一例を示すブロック図である。
Claims (13)
- 燃料電池が発電するように作動する補機を有する燃料電池システムと、放電及び充電によって発熱するバッテリとを備え、負荷に電力を供給する電源システムの制御方法であって、
前記バッテリの動作状態を判断する判断ステップと、
前記判断ステップにおいて前記バッテリが所定温度以下であると判断された場合には、前記バッテリの放電により前記燃料電池システムの前記補機に電力を供給する放電ステップと、
前記判断ステップにおいて前記バッテリが充電状態であると判断された場合には、前記放電ステップにおいて前記補機に供給される電力を減少又は停止させる充電制御ステップと、
を含む電源システムの制御方法。 - 請求項1に記載の電源システムの制御方法であって、
前記電源システムは、前記補機に接続される補助バッテリをさらに含み、
前記充電制御ステップは、前記バッテリが充電状態であると判断された場合には、前記補助バッテリから前記補機に電力を供給して前記補機を作動させる、
電源システムの制御方法。 - 請求項2に記載の電源システムの制御方法であって、
前記電源システムは、前記バッテリと前記補機との間に介装され、前記補機の電圧を前記バッテリの電圧から降圧するコンバータをさらに含み、
前記充電制御ステップは、前記バッテリが充電状態であると判断された場合には、前記コンバータから前記補機に出力される出力電力を減少又は停止させる、
電源システムの制御方法。 - 請求項1に記載の電源システムの制御方法であって、
前記充電制御ステップは、前記バッテリが充電状態であると判断された場合には、前記燃料電池から前記補機に電力を供給して前記補機を作動させる、
電源システムの制御方法。 - 請求項1に記載の電源システムの制御方法であって、
前記充電制御ステップは、前記バッテリが充電状態であると判断された場合には、前記バッテリから前記補機に電力を供給して前記補機を作動させる、
電源システムの制御方法。 - 請求項1から請求項5までのいずれか1項に記載の電源システムの制御方法であって、
前記充電制御ステップは、前記バッテリが充電状態であると判断された場合において、前記燃料電池の暖機が終了しているときには、前記燃料電池の発電電力を用いて前記バッテリを充電する、
電源システムの制御方法。 - 請求項6に記載の電源システムの制御方法であって、
前記充電制御ステップは、
前記バッテリの温度に基づいて前記バッテリに関する充電電力の制限値を求め、
前記バッテリの充電電力が前記制限値を超えないよう前記燃料電池の発電電力を減少又は停止させる、
電源システムの制御方法。 - 請求項1から請求項7までのいずれか1項に記載の電源システムの制御方法であって、
前記負荷は、駆動状態及び回生状態を有する電動モータを含み、
前記判断ステップは、前記電動モータが回生状態に遷移した場合に、前記バッテリが充電状態であると判断する、
電源システムの制御方法。 - 請求項1から請求項7までのいずれか1項に記載の電源システムの制御方法であって、
前記判断ステップは、
前記バッテリの電流を検出し、
前記検出した電流値の符号が前記バッテリの充電電流を示す場合には、前記バッテリが充電状態であると判断する、
電源システムの制御方法。 - 請求項1から請求項7までのいずれか1項に記載の電源システムの制御方法であって、
前記判断ステップは、
前記バッテリの電流及び電圧の各検出値に基づいて前記バッテリの充電電力を算出し、
前記燃料電池の発電指令値及び前記補機の作動指令値に基づいて前記燃料電池システムの消費電力を算出し、
前記バッテリの充電電力が前記燃料電池システムの消費電力を上回る場合に、前記バッテリが充電状態であると判断する、
電源システムの制御方法。 - 請求項1から請求項10までのいずれか1項に記載の電源システムの制御方法であって、
前記燃料電池は、固体酸化型燃料電池であり、
前記燃料電池システムを起動する場合には、前記固体酸化型燃料電池を暖機する暖機ステップをさらに含む電源システムの制御方法。 - 請求項11に記載の電源システムの制御方法であって、
前記暖機ステップは、前記燃料電池が特定温度以上になった場合に、前記燃料電池の暖機を終了する、
電源システムの制御方法。 - 燃料電池が発電するように作動する補機を含む燃料電池システム及びバッテリを備え、負荷に電力を供給する電源システムであって、
前記バッテリと前記補機との間に介装されるコンバータと、
前記バッテリの温度が所定値以下であると判断した場合には、前記コンバータから前記補機への出力電力を前記補機が作動する作動電力に調整するコントローラと、を含み、
前記コントローラは、前記バッテリが充電状態であると判断した場合には、前記コンバータの前記出力電力を前記作動電力よりも小さな値に設定する、
電源システム。
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