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    BACKUP POWER SYSTEM WITH FUEL CELL AND CONTROL METHOD THEREOF
    4.
    发明申请
    BACKUP POWER SYSTEM WITH FUEL CELL AND CONTROL METHOD THEREOF 审中-公开
    具有燃料电池的备用电力系统及其控制方法

    公开(公告)号：US20120019071A1

    公开(公告)日：2012-01-26

    申请号：US12915558

    申请日：2010-10-29

    申请人： Zhan-Yi Lin ,  Jin-Ming Chang ,  To-Wei Huang ,  Yu-Ming Sun ,  Chi-Bin Wu

    发明人： Zhan-Yi Lin ,  Jin-Ming Chang ,  To-Wei Huang ,  Yu-Ming Sun ,  Chi-Bin Wu

    IPC分类号： H02J9/06

    CPC分类号： H02J9/061 ,  H02J7/34 ,  H02J2001/004 ,  Y02B90/14 ,  Y10T307/62

    摘要： A backup power system with a fuel cell and a control method thereof are provided. The control method includes the steps of: setting a default variation value; determining whether power interruption has happened to a grid power module; determining whether a load is functioning; performing a limiting step; and controlling the output of a fuel cell system. With the control method, the fuel cell system functions as a backup power system configured for grid power, and the fuel cell system generates power in response to variation of the load.

    摘要翻译： 提供了具有燃料电池的备用电力系统及其控制方法。 该控制方法包括以下步骤：设置默认变化值; 确定电网电源模块是否发生电源中断; 确定负载是否正常运行; 执行限制步骤; 以及控制燃料电池系统的输出。 利用控制方法，燃料电池系统用作配置用于电网电力的备用电力系统，并且燃料电池系统响应于负载的变化而发电。

    Power conversion circuit
    5.
    发明授权
    Power conversion circuit 有权
    电源转换电路

    公开(公告)号：US08471409B2

    公开(公告)日：2013-06-25

    申请号：US13036406

    申请日：2011-02-28

    申请人： Jin-Ming Chang ,  Zhan-Yi Lin ,  Chen-Kun Chou ,  Yu-Ming Sun ,  Chi-Bin Wu

    发明人： Jin-Ming Chang ,  Zhan-Yi Lin ,  Chen-Kun Chou ,  Yu-Ming Sun ,  Chi-Bin Wu

    IPC分类号： H02M7/537

    CPC分类号： H02J3/382 ,  H02J3/386 ,  H02M2001/0003 ,  H02M2001/007 ,  Y02E10/763 ,  Y10T307/735

    摘要： The present invention discloses a power conversion circuit. A control module controls a pulse width modulation regulator to regulate a duty cycle of a DC-DC converter according to the direct current link voltage of the DC-DC converter and the output current and voltage of a renewable power supply. The control module also controls the pulse width modulation regulator to regulate a duty cycle of a DC-AC inverter according to the direct current link voltage of the DC-DC converter, output voltage of a utility power supply, and the output current and voltage of the renewable power supply.

    摘要翻译： 本发明公开了一种电力转换电路。 控制模块控制脉冲宽度调制调节器，以根据DC-DC转换器的直流链路电压和可再生电源的输出电流和电压来调节DC-DC转换器的占空比。 控制模块还控制脉宽调制调节器，根据DC-DC转换器的直流链路电压，公用电源的输出电压以及输出电流和电压的输出电流和电压来调节DC-AC逆变器的占空比 可再生电力供应。

    POWER SUPPLY SYSTEM AND FUEL CELL BACKUP POWER SYSTEM THEREOF
    6.
    发明申请
    POWER SUPPLY SYSTEM AND FUEL CELL BACKUP POWER SYSTEM THEREOF 审中-公开
    电源系统和燃料电池备份电源系统

    公开(公告)号：US20120169127A1

    公开(公告)日：2012-07-05

    申请号：US13017656

    申请日：2011-01-31

    申请人： Zhan-Yi LIN ,  Jin-Ming Chang ,  Chen-Kun Chou ,  Yu-Ming Sun ,  Chi-Bin Wu

    发明人： Zhan-Yi LIN ,  Jin-Ming Chang ,  Chen-Kun Chou ,  Yu-Ming Sun ,  Chi-Bin Wu

    IPC分类号： H02J9/00 ,  H01M8/06

    CPC分类号： H02J9/061 ,  H01M8/04955 ,  H01M8/04992 ,  H01M8/06 ,  H01M10/46 ,  H01M16/006 ,  H02J2001/004 ,  Y02B90/14 ,  Y10T307/625

    摘要： A power supply system and a fuel cell backup power system thereof are provided. The power supply system includes: a mains power supply module for providing mains electricity to a load, and a fuel cell backup power system for providing electricity to the load while the mains electricity provided by the mains power supply module is insufficient. The fuel cell backup power system includes a fuel cell system, a power conditioning module, a battery, and a controller. The fuel cell system and the battery output first and second electrical energy, respectively. The controller defines a plurality of output power requirement levels for the fuel cell system, reads the power required by the load, and adjusts the output ratio between the first and the second electrical energy in a stepwise manner according to the output power requirement levels so as to meet the power required by the load.

    摘要翻译： 提供了电源系统及其燃料电池备用电力系统。 电源系统包括：用于向负载提供主电源的主电源模块和用于在由主电源模块提供的主电源不足时向负载提供电力的燃料电池备用电力系统。 燃料电池备用电力系统包括燃料电池系统，功率调节模块，电池和控制器。 燃料电池系统和电池分别输出第一和第二电能。 控制器定义燃料电池系统的多个输出功率需求水平，读取负载所需的功率，并根据输出功率需求水平逐步调整第一和第二电能之间的输出比，以便 以满足负载所需的功率。

    POWER CONVERSION CIRCUIT
    7.
    发明申请
    POWER CONVERSION CIRCUIT 有权
    电源转换电路

    公开(公告)号：US20120170336A1

    公开(公告)日：2012-07-05

    申请号：US13036406

    申请日：2011-02-28

    申请人： Jin-Ming Chang ,  Zhan-Yi Lin ,  Chen-Kun Chou ,  Yu-Ming Sun ,  Chi-Bin Wu

    发明人： Jin-Ming Chang ,  Zhan-Yi Lin ,  Chen-Kun Chou ,  Yu-Ming Sun ,  Chi-Bin Wu

    IPC分类号： H02M7/539

    CPC分类号： H02J3/382 ,  H02J3/386 ,  H02M2001/0003 ,  H02M2001/007 ,  Y02E10/763 ,  Y10T307/735

    摘要： The present invention discloses a power conversion circuit. A control module controls a pulse width modulation regulator to regulate a duty cycle of a DC-DC converter according to the direct current link voltage of the DC-DC converter and the output current and voltage of a renewable power supply. The control module also controls the pulse width modulation regulator to regulate a duty cycle of a DC-AC inverter according to the direct current link voltage of the DC-DC converter, output voltage of a utility power supply, and the output current and voltage of the renewable power supply.

    摘要翻译： 本发明公开了一种电力转换电路。 控制模块控制脉冲宽度调制调节器，以根据DC-DC转换器的直流链路电压和可再生电源的输出电流和电压来调节DC-DC转换器的占空比。 控制模块还控制脉宽调制调节器，根据DC-DC转换器的直流链路电压，公用电源的输出电压以及输出电流和电压的输出电流和电压来调节DC-AC逆变器的占空比 可再生电力供应。

    GRID-CONNECTED POWER CONVERSION CIRCUITRY AND POWER CONVERSION METHOD THEREOF
    8.
    发明申请
    GRID-CONNECTED POWER CONVERSION CIRCUITRY AND POWER CONVERSION METHOD THEREOF 审中-公开
    网格连接功率转换电路及其功率转换方法

    公开(公告)号：US20120013190A1

    公开(公告)日：2012-01-19

    申请号：US12878126

    申请日：2010-09-09

    申请人： Jin-Ming Chang ,  Yu-Ming Sun ,  Chi-Bin Wu

    发明人： Jin-Ming Chang ,  Yu-Ming Sun ,  Chi-Bin Wu

    IPC分类号： H02J4/00

    CPC分类号： H02J3/382 ,  Y10T307/696

    摘要： A grid-connected power conversion circuitry and a power conversion method thereof are disclosed. A DC-DC converter converts a renewable energy into a stable and constant DC power. A DC-AC inverter inverts the DC power into an AC power. The duty cycle of the DC-DC converter is adjusted based on a feedback signal related to the DC power, thereby stabilizing the output of the DC-DC converter. The duty cycle of the DC-AC inverter is adjusted based on a feedback signal related to the AC power as well as the phase angle of grid power that is in turn detected by a phase angle processor. Consequently, the AC power can be synchronized with the grid power in frequency. Therefore, the grid system provides auxiliary power when the renewable energy is insufficient, and the AC power output by the DC-AC inverter is synchronized with the grid power in frequency.

    摘要翻译： 公开了并网电力转换电路及其功率转换方法。 DC-DC转换器将可再生能源转换成稳定且恒定的直流电力。 DC-AC逆变器将直流电转换为交流电源。 基于与直流电力相关的反馈信号来调整DC-DC转换器的占空比，从而稳定DC-DC转换器的输出。 基于与AC电力相关的反馈信号以及由相位角处理器进一步检测的电网功率的相位角来调整DC-AC逆变器的占空比。 因此，AC电源可以与电网功率频率同步。 因此，当可再生能源不足时，电网系统提供辅助电力，直流 - 交流逆变器输出的交流电力频率与电网功率同步。