Electric storage augmentation of fuel cell system transient response
    3.
    发明申请
    Electric storage augmentation of fuel cell system transient response 有权
    燃料电池系统瞬态响应的蓄电增加

    公开(公告)号:US20050106432A1

    公开(公告)日:2005-05-19

    申请号:US10717089

    申请日:2003-11-19

    摘要: A fuel cell stack (7) with output lines (8, 9) has a bank of supercapacitors (10) or batteries (10a) connected across the output lines, either directly or through a DC/DC converter (22). The fuel cell stack receives fuel either from a reformer (13) or a source (13a) of hydrogen. Power is supplied through a power conditioning system (15) to a load (16), all under the control of a controller (19). The supercapacitors or batteries receive additional charge from excess power when there is a sudden decrease in the load, and provide charge to the output power lines (8, 9) when there is a sudden increase in load demand. In one embodiment, the voltage of the supercapacitors or batteries always follow the voltage of the fuel cell stack, thereby providing or receiving commensurate charge. With the DC/DC converter, the supercapacitors or batteries may be operated at voltages which are a multiple or a fraction of fuel cell stack voltage, and may have voltages boosted or bucked to aid in response to transients.

    摘要翻译: 具有输出线(8,9)的燃料电池堆(7)具有直接地或通过DC / DC转换器(22)跨过输出线连接的一组超级电容器(10)或电池(10a)。 燃料电池组从重整器(13)或氢源(13a)接收燃料。 电源通过功率调节系统(15)供应到负载(16),全部在控制器(19)的控制下。 当负载突然下降时,超级电容器或电池从额外的电力中接收额外的电量,并且当负载需求突然增加时,向输出电力线(8,9)充电。 在一个实施例中,超级电容器或电池的电压总是跟随燃料电池堆的电压,由此提供或接收相应的电荷。 使用DC / DC转换器,超级电容器或电池可以以多个或一部分燃料电池堆电压的电压操作,并且可以具有升压或降压的电压以有助于响应瞬态。