公开(公告)号：US08212516B2

公开(公告)日：2012-07-03

申请号：US12525925

申请日：2008-01-22

申请人： Shuji Goto ,  Takashi Tomita ,  Yukihito Makabe

发明人： Shuji Goto ,  Takashi Tomita ,  Yukihito Makabe

IPC分类号： H01M10/44 ,  H01M8/04 ,  B60K1/00

CPC分类号： H01M16/006 ,  H01M8/1011 ,  H01M10/052 ,  H01M10/44 ,  Y02E60/523

摘要： A power supply system is provided that includes a fuel cell as its energy source and has not only high energy density but also high power density and can respond to sharp change in the power consumption with simple means. In a power supply system, a fuel cell is connected to the input terminal of a DC/DC converter, and a lithium-ion secondary battery and a load are connected to the output terminal in parallel. A voltage measurement device that measures the terminal voltage of the secondary battery and a control microcomputer that sets the target output voltage of the converter are provided, and the target output voltage is set slightly higher than the terminal voltage. The fuel cell is operated within a power generation condition offering the highest fuel conversion efficiency.

摘要翻译： 提供了一种电源系统，其包括作为其能量源的燃料电池，并且具有不仅高能量密度而且功率密度高的特点，并且能够以简单的手段响应于功率消耗的急剧变化。 在电源系统中，将燃料电池连接到DC / DC转换器的输入端子，并且将锂离子二次电池和负载并联连接到输出端子。 提供了测量二次电池的端子电压的电压测量装置和设置转换器的目标输出电压的控制微计算机，并且将目标输出电压设置为略高于端子电压。 燃料电池在提供最高燃料转化效率的发电条件下运行。

公开(公告)号：US20110001453A1

公开(公告)日：2011-01-06

申请号：US12525925

申请日：2008-01-22

申请人： Shuji Goto ,  Takashi Tomita ,  Yukihito Makabe

发明人： Shuji Goto ,  Takashi Tomita ,  Yukihito Makabe

IPC分类号： H01M10/46

CPC分类号： H01M16/006 ,  H01M8/1011 ,  H01M10/052 ,  H01M10/44 ,  Y02E60/523

摘要： A power supply system is provided that includes a fuel cell as its energy source and has not only high energy density but also high power density and can respond to sharp change in the power consumption with simple means. In a power supply system, a fuel cell is connected to the input terminal of a DC/DC converter, and a lithium-ion secondary battery and a load are connected to the output terminal in parallel. A voltage measurement device that measures the terminal voltage of the secondary battery and a control microcomputer that sets the target output voltage of the converter are provided, and the target output voltage is set slightly higher than the terminal voltage. The fuel cell is operated within a power generation condition offering the highest fuel conversion efficiency. Due to this configuration, the system composed of the fuel cell and the converter functions like a constant voltage/current source that outputs the power generated by the fuel cell with the voltage equal to the terminal voltage of the secondary battery. The excess/deficiency of this output current with respect to the current for driving the load is automatically adjusted by the charge/discharge of the secondary battery.

摘要翻译： 提供了一种电源系统，其包括作为其能量源的燃料电池，并且具有不仅高能量密度而且功率密度高的特点，并且能够以简单的手段响应于功率消耗的急剧变化。 在电源系统中，将燃料电池连接到DC / DC转换器的输入端子，并且将锂离子二次电池和负载并联连接到输出端子。 提供了测量二次电池的端子电压的电压测量装置和设置转换器的目标输出电压的控制微计算机，并且将目标输出电压设置为略高于端子电压。 燃料电池在提供最高燃料转化效率的发电条件下运行。 由于这种结构，由燃料电池和转换器组成的系统的功能如同恒定电压/电流源，其输出等于二次电池的端电压的燃料电池产生的电力。 相对于用于驱动负载的电流，该输出电流的过剩/不足由二次电池的充电/放电自动调节。