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1. 发明申请

US20050214602A1 Load following algorithm for a fuel cell based distributed generation system 审中-公开
标题翻译：为基于燃料电池的分布式发电系统加载跟随算法
公开(公告)号：US20050214602A1
公开(公告)日：2005-09-29
申请号：US10811161
申请日：2004-03-26
申请人： Manish Sinha , Matthew Kirklin , Clark Hochgraf
发明人： Manish Sinha , Matthew Kirklin , Clark Hochgraf
IPC分类号： H01M8/04 , H01M16/00
CPC分类号： H01M8/04992 , H01M8/04567 , H01M8/04589 , H01M8/04597 , H01M8/04917 , H01M8/0494 , H01M8/04947 , H01M16/006 , H01M2250/20 , Y02T90/32
摘要： A fuel cell distributed generation system that employs a load following control algorithm that provides the desired output power from a fuel cell on demand. The system includes a current sensor that measures the current drawn from the fuel cell available to satisfy the application load demands. A fuel cell controller receives the measured current and provides a command signal to the fuel cell to increase or decrease its power generation based on the demand. The controller also defines a maximum current that the system can draw from the fuel cell based on its fuel input. The system may include a battery current sensor that measures battery current to insure that the system battery is not being drained. Also, the system may include a battery voltage sensor that monitors battery voltage drift.
摘要翻译：一种燃料电池分布式发电系统，其采用根据需要从燃料电池提供期望输出功率的负载跟随控制算法。该系统包括电流传感器，其测量从燃料电池抽出的电流可用于满足应用负载需求。燃料电池控制器接收测量的电流，并且向燃料电池提供指令信号以根据需求增加或减少其发电。控制器还定义了系统可以根据燃料输入从燃料电池抽取的最大电流。该系统可以包括测量电池电流以确保系统电池未被排出的电池电流传感器。此外，该系统可以包括监测电池电压漂移的电池电压传感器。

2. 发明申请

US20050175873A1 Passive hydrogen vent for a fuel cell 有权
标题翻译：无源氢气排放燃料电池
公开(公告)号：US20050175873A1
公开(公告)日：2005-08-11
申请号：US10772699
申请日：2004-02-05
申请人： Leroy Edwards , Clark Hochgraf
发明人： Leroy Edwards , Clark Hochgraf
IPC分类号： H01M2/12 , H01M8/04
CPC分类号： H01M8/2475 , H01M8/04007 , H01M8/04029 , H01M8/04089 , Y02P70/56
摘要： A fuel cell has a hydrogen flow path adapted to pass hydrogen into communication with an anode catalyst of an MEA. A coolant flow path is adapted to pass coolant through the fuel cell to cool the fuel cell. An enclosure encompasses at least a portion of the hydrogen flow path, the coolant flow path, or both. A hydrogen vent is adapted to vent hydrogen from the enclosure without reliance upon any electrical device. The hydrogen vent can prevent a frame front from passing into the enclosure and can be made of a porous material such as cellulose, plastic (for example, a foamed plastic) or metal (for example a sintered metal). A method of manufacturing a fuel cell includes passively venting hydrogen to maintain a hydrogen concentration level within the enclosure below about 4 percent. Additional enclosures with hydrogen vents may also be provided.
摘要翻译：燃料电池具有适于使氢气与MEA的阳极催化剂连通的氢气流路。冷却剂流动路径适于使冷却剂通过燃料电池以冷却燃料电池。壳体包括氢气流动路径，冷却剂流动路径或两者的至少一部分。氢气排气口适于从外壳排出氢气，而不依赖于任何电气设备。氢气通气口可以防止框架前部进入外壳，并且可以由诸如纤维素，塑料（例如发泡塑料）或金属（例如烧结金属）的多孔材料制成。制造燃料电池的方法包括被动地排出氢气，以将外壳内的氢浓度水平维持在约4％以下。还可以提供具有氢气通风口的附加外壳。

3. 发明申请

US20050164048A1 Current control for parallel fuel cell stacks 有权
标题翻译：并联燃料电池堆的电流控制
公开(公告)号：US20050164048A1
公开(公告)日：2005-07-28
申请号：US10762656
申请日：2004-01-22
申请人： John Wheat , Clark Hochgraf , Daryl Chapman
发明人： John Wheat , Clark Hochgraf , Daryl Chapman
IPC分类号： H01M8/04
CPC分类号： H01M8/04589 , H01M8/04089 , H01M8/04455 , H01M8/0447 , H01M8/04559 , H01M8/04619 , H01M8/04701 , H01M8/04753 , H01M8/04761 , H01M8/04768 , H01M8/04798 , H01M8/04835 , H01M8/0488 , H01M8/0491 , H01M8/0494
摘要： A fuel cell system includes fuel cell stacks electrically connected in parallel and supplying a gross current to a load. A controller determines the gross load current, and produces a desired current through the load by adjusting, based on the gross load current, at least one parameter affecting at least one of the inputs to and outputs from the system. This system allows a stack design and its voltage output to be kept constant while stacks are added for increased power.
摘要翻译：燃料电池系统包括并联电连接并将总电流提供给负载的燃料电池堆。控制器确定总负载电流，并且通过基于总负载电流调整至少一个影响到系统的输入和输出的至少一个参数的参数来产生通过负载的期望电流。该系统允许堆叠设计及其电压输出保持恒定，同时增加堆叠以增加功率。

4. 发明申请

US20050287411A1 Low voltage power tap on high voltage stack 有权
标题翻译：高电压堆叠上的低压电源抽头
公开(公告)号：US20050287411A1
公开(公告)日：2005-12-29
申请号：US10875464
申请日：2004-06-24
申请人： Scott Dewey , Clark Hochgraf , Victor Logan , John Wheat , David Ouwerkerk
发明人： Scott Dewey , Clark Hochgraf , Victor Logan , John Wheat , David Ouwerkerk
IPC分类号： H01M8/04 , H01M8/24 , H02M7/483
CPC分类号： H01M8/0488 , B60L11/1883 , H01M8/241 , H01M2250/20 , H02M7/483 , Y02T90/32 , Y02T90/34
摘要： A fuel cell system that includes a fuel cell stack providing high voltage power. A tap is electrically coupled to the positive end of the stack to provide a positive voltage output terminal of the fuel cell stack, and a tap is electrically coupled to the negative end of the stack to provide a negative output terminal of the fuel cell stack. A low voltage tap is electrically coupled to one or more intermediate bipolar plates of the stack to provide low voltage power. Several intermediate taps can be electrically coupled to the bipolar plates, where a center intermediate tap is designated a reference potential tap. A switching network switches the several voltage potentials to provide an AC signal.
摘要翻译：一种燃料电池系统，其包括提供高电压功率的燃料电池堆。抽头电耦合到堆叠的正端以提供燃料电池堆的正电压输出端子，并且抽头电耦合到堆叠的负端以提供燃料电池堆的负输出端子。低压抽头电耦合到堆叠的一个或多个中间双极板以提供低电压功率。几个中间抽头可以电耦合到双极板，其中中间中间抽头被指定为参考电位抽头。交换网络切换几个电压电位以提供AC信号。

5. 发明申请

US20050058870A1 Addressing one MEA failure mode by controlling MEA catalyst layer overlap 有权
标题翻译：通过控制MEA催化剂层重叠来解决一个MEA故障模式
公开(公告)号：US20050058870A1
公开(公告)日：2005-03-17
申请号：US10664345
申请日：2003-09-17
申请人： John Healy , Anastasios Angelopoulos , Clark Hochgraf
发明人： John Healy , Anastasios Angelopoulos , Clark Hochgraf
IPC分类号： B05D5/12 , H01M20060101 , H01M2/08 , H01M4/86 , H01M4/88 , H01M4/92 , H01M4/94 , H01M8/10 , H01M8/24
CPC分类号： H01M4/881 , H01M4/8605 , H01M4/921 , H01M4/926 , H01M8/1004 , H01M8/241
摘要： A method of addressing one MEA failure mode by controlling MEA catalyst layer overlap, and the apparatus formed thereby is disclosed. The present invention addresses a feature of membrane electrode assembly (MEA) architecture that is associated with field failures due to the loss of ionomer from the edges of the electrolyte. To address ionomer degradation, the present invention provides a MEA design in which the cathode catalyst edges are closer than the anode catalyst edges to the edges of the electrolyte.
摘要翻译：通过控制MEA催化剂层重叠来解决一个MEA故障模式的方法，并且公开了由此形成的装置。本发明涉及膜电极组件（MEA）结构的特征，该结构由于离子电极从电解质边缘的损失而与现场故障相关联。为了解决离聚物降解，本发明提供了一种MEA设计，其中阴极催化剂边缘比阳极催化剂边缘更接近电解质边缘。

6. 发明授权

US06794844B2 Method and system for fuel cell control 失效
标题翻译：燃料电池控制方法与系统
公开(公告)号：US06794844B2
公开(公告)日：2004-09-21
申请号：US09945047
申请日：2001-08-31
申请人： Clark Hochgraf , Prabhakar Singh
发明人： Clark Hochgraf , Prabhakar Singh
IPC分类号： H01M1044
CPC分类号： H01M16/006 , H01M8/04089 , H01M8/04119 , H01M8/04305 , H01M8/04574 , H01M8/04626 , H01M8/0488 , H01M8/0491 , H01M8/04917 , H01M8/04992
摘要： A control system (20) for controlling the state of charge in an energy storage device (28) by manipulating the voltage of a fuel cell (24) through dynamic system modeling of predetermined parameters (21) for the fuel cell (24) as well as the energy storage device (28). According to the method (100) of the present invention, manipulation (108) of predetermined parameters related to the fuel cell and the energy storage device control the energy storage device to a desired state of charge or divides the load current between the two devices.
摘要翻译：一种用于通过对燃料电池（24）的预定参数（21）的动态系统建模来操纵燃料电池（24）的电压来控制能量存储装置（28）中的充电状态的控制系统（20）作为能量存储装置（28）。根据本发明的方法（100），与燃料电池相关的预定参数的操作（108）和能量存储装置将能量存储装置控制到期望的充电状态，或者划分两个装置之间的负载电流。

7. 发明授权

US07442456B2 Current control for parallel fuel cell stacks 有权
标题翻译：并联燃料电池堆的电流控制
公开(公告)号：US07442456B2
公开(公告)日：2008-10-28
申请号：US10762656
申请日：2004-01-22
申请人： John S Wheat , Clark Hochgraf , Daryl Chapman
发明人： John S Wheat , Clark Hochgraf , Daryl Chapman
IPC分类号： H01M8/04
CPC分类号： H01M8/04589 , H01M8/04089 , H01M8/04455 , H01M8/0447 , H01M8/04559 , H01M8/04619 , H01M8/04701 , H01M8/04753 , H01M8/04761 , H01M8/04768 , H01M8/04798 , H01M8/04835 , H01M8/0488 , H01M8/0491 , H01M8/0494
摘要： A fuel cell system includes fuel cell stacks electrically connected in parallel and supplying a gross current to a load. A controller determines the gross load current, and produces a desired current through the load by adjusting, based on the gross load current, at least one parameter affecting at least one of the inputs to and outputs from the system. This system allows a stack design and its voltage output to be kept constant while stacks are added for increased power.
摘要翻译：燃料电池系统包括并联电连接并将总电流提供给负载的燃料电池堆。控制器确定总负载电流，并且通过基于总负载电流调整至少一个影响到系统的输入和输出的至少一个参数的参数来产生通过负载的期望电流。该系统允许堆叠设计及其电压输出保持恒定，同时增加堆叠以增加功率。

8. 发明申请

US20070029123A1 Rapid startup of a fuel cell power module using motor drive 有权
标题翻译：使用电机驱动快速启动燃料电池电源模块
公开(公告)号：US20070029123A1
公开(公告)日：2007-02-08
申请号：US11196052
申请日：2005-08-03
申请人： Clark Hochgraf
发明人： Clark Hochgraf
IPC分类号： B60L11/18 , H01M8/04
CPC分类号： H01M8/04723 , B60L11/1885 , B60L11/1892 , B60L11/1894 , H01M8/04089 , H01M8/04949 , H01M2250/20 , Y02T90/32 , Y02T90/34
摘要： A technique for heating a fuel cell stack at stack start-up that includes using the vehicle motor drive system to generate waste heat independent from providing traction. Particularly, at fuel cell stack start-up, the electric traction inverter associated with the traction motor that drives the vehicle is controlled so that command signals provided by an inverter to a traction motor do not provide motor torque, but dissipates power into the motor windings and/or motor structure as waste heat. Thus, the output power generated by the fuel cell stack can be made high enough to quickly heat the fuel cell stack through inefficiencies in the stack operation, without providing driving torque. Additionally, the electric traction inverter can be operated so that waste heat is generated within the semiconductor power switches in the inverter.
摘要翻译：一种用于在堆垛启动时加热燃料电池堆的技术，其包括使用车辆电动机驱动系统以独立于提供牵引力产生废热。特别地，在燃料电池堆启动时，控制与驱动车辆的牵引电动机相关联的电力牵引逆变器，使得由逆变器提供给牵引电动机的指令信号不提供电动机转矩，而是向电动机绕组和/或马达结构作为废热。因此，燃料电池堆产生的输出功率可以被制成足够高的，以便在不提供驱动转矩的情况下通过堆栈操作中的低效率快速加热燃料电池堆。此外，电动牵引逆变器可以工作，从而在逆变器的半导体功率开关内产生废热。

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