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    • 1. 发明授权
    • Low power control of fuel cell open circuit voltage
    • 低功率控制燃料电池的开路电压
    • US08808934B2
    • 2014-08-19
    • US12998152
    • 2008-10-03
    • Matthew P. WilsonVenkateshwarlu YadhaCarl A. Reiser
    • Matthew P. WilsonVenkateshwarlu YadhaCarl A. Reiser
    • H01M8/04
    • H01M8/04626H01M8/04552H01M8/04753H01M8/04761H01M8/04873H01M8/04947H01M2250/20Y02E60/50Y02T10/92Y02T90/32
    • A fuel cell power plant (5) includes a stack (6) of fuel cells, each of which have an anode (9), a cathode (10), and a PEM (11) disposed between the anode and the cathode. A controller (17) recognizes an indication (67) of no load demand (68) by a load (59), to operate (45) an air recycle loop (44-46) utilizing the process air blower (35) and transfer the power output (57) of the stack from the load (59) to an auxiliary load (60), comprising a resistance which will consume a predetermined small amount of power in response to the current applied thereto, when the stack operates at a critical voltage above which fuel cell corrosion is unacceptable. Fuel and air will also be reduced (16, 40). The controller may cause increased cathode recycle when the critical voltage is reached and increased air when the voltage is a fraction of a volt below the critical voltage.
    • 燃料电池发电厂(5)包括燃料电池堆(6),每个燃料电池单元具有设置在阳极和阴极之间的阳极(9),阴极(10)和PEM(11)。 控制器(17)通过负载(59)识别无负载要求指示(67),以利用处理空气鼓风机(35)操作(45)空气循环回路(44-46),并转移 堆叠从负载(59)到辅助负载(60)的功率输出(57),包括响应于施加到其上的电流将消耗预定的小量功率的电阻,当堆栈以临界电压 以上燃料电池腐蚀是不可接受的。 燃料和空气也将减少(16,40)。 当达到临界电压时,控制器可能导致增加的阴极再循环,当电压是低于临界电压的伏特的一小部分时,空气增加。
    • 3. 发明申请
    • Low Power Control of Fuel Cell Open Circuit Voltage
    • 燃料电池开路电压低功率控制
    • US20110171547A1
    • 2011-07-14
    • US12998152
    • 2008-10-03
    • Matthew P. WilsonVenkateshwarlu YadhaCarl A. Reiser
    • Matthew P. WilsonVenkateshwarlu YadhaCarl A. Reiser
    • H01M8/04
    • H01M8/04626H01M8/04552H01M8/04753H01M8/04761H01M8/04873H01M8/04947H01M2250/20Y02E60/50Y02T10/92Y02T90/32
    • A fuel cell power plant (5) includes a stack (6) of fuel cells, each of which have an anode (9), a cathode (10), and a PEM (11) disposed between the anode and the cathode. A controller (17) recognizes an indication (67) of no load demand (68) by a load (59), to operate (45) an air recycle loop (44-46) utilizing the process air blower (35) and transfer the power output (57) of the stack from the load (59) to an auxiliary load (60), comprising a resistance which will consume a predetermined small amount of power in response to the current applied thereto, when the stack operates at a critical voltage above which fuel cell corrosion is unacceptable. Fuel and air will also be reduced (16, 40). The controller may cause increased cathode recycle when the critical voltage is reached and increased air when the voltage is a fraction of a volt below the critical voltage.
    • 燃料电池发电厂(5)包括燃料电池堆(6),每个燃料电池单元具有设置在阳极和阴极之间的阳极(9),阴极(10)和PEM(11)。 控制器(17)通过负载(59)识别空载需求指示(67),利用处理空气鼓风机(35)操作(45)空气循环回路(44-46),并将 堆叠从负载(59)到辅助负载(60)的功率输出(57),包括响应于施加到其上的电流将消耗预定的小量功率的电阻,当堆栈以临界电压 以上燃料电池腐蚀是不可接受的。 燃料和空气也将减少(16,40)。 当达到临界电压时,控制器可能导致增加的阴极再循环,当电压是低于临界电压的伏特的一小部分时,空气增加。