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    Adaptive Technique and Apparatus to Detect an Unhealthy Condition of a Fuel Cell System
    3.
    发明申请
    Adaptive Technique and Apparatus to Detect an Unhealthy Condition of a Fuel Cell System 审中-公开
    用于检测燃料电池系统不健康状况的自适应技术和装置

    公开(公告)号：US20100015474A1

    公开(公告)日：2010-01-21

    申请号：US12175536

    申请日：2008-07-18

    申请人： Rebecca Dinan ,  Manikandan Ramani

    发明人： Rebecca Dinan ,  Manikandan Ramani

    IPC分类号： H01M8/00

    CPC分类号： H01M8/04559 ,  H01M8/0432 ,  H01M8/0438 ,  H01M8/04552 ,  H01M8/04679 ,  H01M8/04723 ,  H01M8/04753 ,  H01M8/04768 ,  H01M8/04858 ,  H01M8/04992 ,  H01M2008/1095

    摘要： A technique that is usable with a fuel cell system having a fuel cell stack includes storing in a memory a healthy behavior pattern and an unhealthy behavior pattern for the fuel cell stack, comparing observed behavior of the fuel cell stack to the healthy and unhealthy behavior patterns, and classifying the observed behavior as healthy or unhealthy based on the comparison. The technique further includes modifying the stored healthy behavior pattern and the stored unhealthy behavior pattern based upon the occurrence of a predetermined event, such as the detection of an unhealthy condition, the issuance of an alarm, or the passage of a time interval. Modifying the behavior patterns enhances the accuracy of the health classification since the modification takes into account actual system behavior and any performance degradation that may occur over time.

    摘要翻译： 可用于具有燃料电池堆的燃料电池系统的技术包括在存储器中存储健康行为模式和用于燃料电池堆的不健康行为模式，将燃料电池堆的观察行为与健康和不健康行为模式进行比较 ，并根据比较将观察到的行为分类为健康或不健康。 该技术还包括基于诸如检测不健康状况，发出警报或者时间间隔的预定事件的发生来修改存储的健康行为模式和存储的不健康行为模式。 修改行为​​模式增强了健康分类的准确性，因为修改会考虑到实际的系统行为以及随时间而发生的任何性能下降。

    Starting up and shutting down a fuel cell
    5.
    发明申请
    Starting up and shutting down a fuel cell 审中-公开
    启动并关闭燃料电池

    公开(公告)号：US20070154742A1

    公开(公告)日：2007-07-05

    申请号：US11321885

    申请日：2005-12-29

    申请人： Hao Tang ,  Zhigang Qi ,  Manikandan Ramani ,  Kenneth Rush ,  Lam Wong ,  Noel Miklas

    发明人： Hao Tang ,  Zhigang Qi ,  Manikandan Ramani ,  Kenneth Rush ,  Lam Wong ,  Noel Miklas

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04303 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/0612 ,  H01M8/241 ,  H01M2008/1095

    摘要： A technique to shut down a fuel cell stack includes reducing an oxidant flow through the fuel cell stack, and decreasing the current of the fuel cell stack while maintaining an approximately constant rate of fuel flow to the fuel cell stack. Once the power output of the fuel cell stack reaches zero due to the depletion of oxygen at the cathode, the fuel flow to the fuel cell stack anode is then halted. Then, the stack is either isolated from the reactant streams, or the cathode is briefly purged by the fuel before the stack is isolated from the reactant streams, or both the anode and the cathode are purged in sequence by air before the stack is isolated from the reactant streams.

    摘要翻译： 关闭燃料电池堆的技术包括减少通过燃料电池堆的氧化剂流，以及降低燃料电池堆的电流，同时保持大致恒定的燃料流量到燃料电池堆。 一旦燃料电池堆的功率输出由于阴极处的氧气的耗尽而达到零，则停止向燃料电池堆阳极的燃料流。 然后，将堆叠从反应物流中分离出来，或者在堆叠与反应物流分离之前，将燃料短暂地吹扫出来，或者在将堆叠与反应物分离之前，阳极和阴极依次被空气吹扫 反应物流。