Method of fully charging an electrical energy storage device using a lower voltage fuel cell system
    1.
    发明授权
    Method of fully charging an electrical energy storage device using a lower voltage fuel cell system 有权
    使用较低电压的燃料电池系统对电能存储装置进行充电的方法

    公开(公告)号:US08154242B2

    公开(公告)日:2012-04-10

    申请号:US12055604

    申请日:2008-03-26

    摘要: A fuel cell system that includes a fuel cell stack and an EESD electrically coupled to a common high voltage bus line. The EESD has a higher voltage output than the fuel cell stack, and thus the stack is unable to fully charge the EESD, for example, at system shut-down. In order to allow the fuel cell stack to fully charge the EESD, the EESD is separated into a plurality of separate electrical storage banks having lower voltage potentials. A series of contactors are provided to electrically couple the storage banks in series during normal system operation, and separately charge the storage banks using the fuel cell stack so that they are fully charged. The series of contactors can also be configured so that the storage banks can be electrically coupled in series during normal operation of the system and be electrically coupled in parallel during charging at system shut-down.

    摘要翻译: 一种燃料电池系统,其包括电耦合到公共高压总线的燃料电池堆和EESD。 EESD具有比燃料电池堆更高的电压输出,因此例如在系统停机时,堆栈不能对EESD完全充电。 为了允许燃料电池堆对EESD进行完全充电,EESD被分离成具有较低电压电位的多个单独的电存储组。 提供一系列接触器以在正常系统操作期间串联电气地联接存储体,并且使用燃料电池堆分别对存储体进行充电,使得它们被充满电。 该系列接触器也可以被配置为使得存储体可以在系统的正常操作期间串联电耦合,并且在系统停机期间在充电期间并联电耦合。

    METHOD OF FULLY CHARGING AN ELECTRICAL ENERGY STORAGE DEVICE USING A LOWER VOLTAGE FUEL CELL SYSTEM
    2.
    发明申请
    METHOD OF FULLY CHARGING AN ELECTRICAL ENERGY STORAGE DEVICE USING A LOWER VOLTAGE FUEL CELL SYSTEM 有权
    使用低电压燃料电池系统充分充电电力储存装置的方法

    公开(公告)号:US20090243536A1

    公开(公告)日:2009-10-01

    申请号:US12055604

    申请日:2008-03-26

    IPC分类号: H01M10/44 H02J7/00 H01M8/04

    摘要: A fuel cell system that includes a fuel cell stack and an EESD electrically coupled to a common high voltage bus line. The EESD has a higher voltage output than the fuel cell stack, and thus the stack is unable to fully charge the EESD, for example, at system shut-down. In order to allow the fuel cell stack to fully charge the EESD, the EESD is separated into a plurality of separate electrical storage banks having lower voltage potentials. A series of contactors are provided to electrically couple the storage banks in series during normal system operation, and separately charge the storage banks using the fuel cell stack so that they are fully charged. The series of contactors can also be configured so that the storage banks can be electrically coupled in series during normal operation of the system and be electrically coupled in parallel during charging at system shut-down.

    摘要翻译: 一种燃料电池系统,其包括电耦合到公共高压总线的燃料电池堆和EESD。 EESD具有比燃料电池堆更高的电压输出,因此例如在系统停机时,堆栈不能对EESD完全充电。 为了允许燃料电池堆对EESD进行完全充电,EESD被分离成具有较低电压电位的多个单独的电存储组。 提供一系列接触器以在正常系统操作期间串联电气地联接存储体,并且使用燃料电池堆分别对存储体进行充电,使得它们被充满电。 该系列接触器也可以被配置为使得存储体可以在系统的正常操作期间串联电耦合,并且在系统停机期间在充电期间并联电耦合。

    METHOD OF ENTERING AND EXITING A REGENERATIVE/STAND-BY MODE ON A FUEL CELL SYSTEM WHERE THE FUEL CELL IS SEPARATED FROM THE REGENERATIVE SOURCE BY A BLOCKING POWER DIODE
    4.
    发明申请
    METHOD OF ENTERING AND EXITING A REGENERATIVE/STAND-BY MODE ON A FUEL CELL SYSTEM WHERE THE FUEL CELL IS SEPARATED FROM THE REGENERATIVE SOURCE BY A BLOCKING POWER DIODE 有权
    在燃料电池从蓄电池分离的燃料电池系统中进入并排出再生/待机模式的方法由阻塞功率二极管

    公开(公告)号:US20110244346A1

    公开(公告)日:2011-10-06

    申请号:US12751361

    申请日:2010-03-31

    IPC分类号: H01M8/04

    摘要: A method for operating a fuel cell stack where electrical energy from regenerative braking is used to operate system loads instead of using fuel cell stack power to conserve hydrogen. A fuel cell stack and an ultracapacitor are electrically coupled to a high voltage electrical bus. A by-pass line is provided around a blocking diode including a by-pass contactor. A stack contactor is provided to disconnect the fuel cell stack from the electrical bus. A stand-by mode request is made if the voltage at a node proximate to the blocking diode closest to the ultracapacitor is higher than the voltage at a node proximate to the blocking diode closest to the fuel cell stack. Steps are then made to electrically prepare the high voltage electrical bus. Then, the stack contactor is opened and the by-pass contactor is closed to allow the regenerate braking energy to power the system loads.

    摘要翻译: 一种用于操作燃料电池堆的方法,其中来自再生制动的电能用于操作系统负载,而不是使用燃料电池堆电力来节省氢。 燃料电池堆和超级电容器电耦合到高压电气总线。 在包括旁路接触器的阻塞二极管周围提供旁路线。 提供堆叠接触器以将燃料电池堆与电气总线断开。 如果靠近最接近超级电容器的阻塞二极管的节点处的电压高于靠近最靠近燃料电池堆的阻塞二极管的节点处的电压,则进行备用模式请求。 然后进行步骤以电气准备高压电气总线。 然后,堆叠接触器打开,旁路接触器关闭,以允许再生制动能量为系统负载供电。

    Method of entering and exiting a regenerative/stand-by mode on a fuel cell system where the fuel cell is separated from the regenerative source by a blocking power diode
    5.
    发明授权
    Method of entering and exiting a regenerative/stand-by mode on a fuel cell system where the fuel cell is separated from the regenerative source by a blocking power diode 有权
    在燃料电池系统上进入和退出再生/待机模式的方法,其中燃料电池通过阻塞功率二极管与再生源分离

    公开(公告)号:US08404392B2

    公开(公告)日:2013-03-26

    申请号:US12751361

    申请日:2010-03-31

    IPC分类号: H01M8/06

    摘要: A method for operating a fuel cell stack where electrical energy from regenerative braking is used to operate system loads instead of using fuel cell stack power to conserve hydrogen. A fuel cell stack and an ultracapacitor are electrically coupled to a high voltage electrical bus. A by-pass line is provided around a blocking diode including a by-pass contactor. A stack contactor is provided to disconnect the fuel cell stack from the electrical bus. A stand-by mode request is made if the voltage at a node proximate to the blocking diode closest to the ultracapacitor is higher than the voltage at a node proximate to the blocking diode closest to the fuel cell stack. Steps are then made to electrically prepare the high voltage electrical bus. Then, the stack contactor is opened and the by-pass contactor is closed to allow the regenerate braking energy to power the system loads.

    摘要翻译: 一种用于操作燃料电池堆的方法,其中来自再生制动的电能用于操作系统负载,而不是使用燃料电池堆电力来节省氢。 燃料电池堆和超级电容器电耦合到高压电气总线。 在包括旁路接触器的阻塞二极管周围提供旁路线。 提供堆叠接触器以将燃料电池堆与电气总线断开。 如果靠近最接近超级电容器的阻塞二极管的节点处的电压高于靠近最靠近燃料电池堆的阻塞二极管的节点处的电压,则进行备用模式请求。 然后进行步骤以电气准备高压电气总线。 然后,堆叠接触器打开,旁路接触器关闭,以允许再生制动能量为系统负载供电。