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1.发明授权Adaptive method for conversion of external power request to current setpoint to a fuel cell system based on stack performance 有权基于堆栈性能将外部功率请求转换为电流设定值到燃料电池系统的自适应方法公开(公告)号：US09105892B2
公开(公告)日：2015-08-11
申请号：US12724262
申请日：2010-03-15
CPC分类号： H01M8/04559 , H01M8/04589 , H01M8/04604 , H01M8/0491 , H01M8/04992 , H01M2008/1095 , Y02E60/50
摘要： A system and method for converting a fuel cell stack power request signal to a stack current set-point that considers stack performance parameters. The method includes obtaining a power-current relationship curve of the fuel cell stack to provide stack parameters including exchange current density and mass transfer coefficient. The method then calculates a slope for the stack using the parameters from the power-current relationship curve estimation that includes calculating a cell voltage at two predetermined stack current densities. The method then calculates a change in current in response to the power request signal, the stack voltage, the stack current and the calculated slope, and uses the change in current to update the current set-point for the stack.
摘要翻译： 一种用于将燃料电池堆功率请求信号转换为考虑堆栈性能参数的堆栈当前设定点的系统和方法。 该方法包括获得燃料电池堆的功率 - 电流关系曲线以提供包括交换电流密度和质量传递系数的堆叠参数。 该方法然后使用来自功率 - 电流关系曲线估计的参数来计算堆叠的斜率，其包括以两个预定的堆叠电流密度计算单元电压。 然后，该方法响应于功率请求信号，堆栈电压，堆栈电流和计算出的斜率来计算电流变化，并且使用电流变化来更新堆栈的当前设定点。
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公开(公告)号：US06959249B2
公开(公告)日：2005-10-25
申请号：US10725680
申请日：2003-12-02
CPC分类号： H01M16/006 , H01M8/04567 , H01M8/04589 , H01M8/04604 , H01M8/04753 , H01M8/04917 , H01M8/04992
摘要： A fuel cell generation system employing a load following algorithm that provides the desired output power from the fuel cell on demand. The system includes a draw current sensor that measures the current drawn from the fuel cell used to satisfy the system load demands. The load following algorithm uses the measured draw current to identify the proper amount of fuel and air to meet the load demands, and then provides a buffer of extra fuel and air to the fuel cell so if the load demand suddenly increases, the fuel cell is able to immediately produce the extra output power. As the current drawn from the fuel cell changes in response to changing load demands, the load following algorithm causes the amount of fuel and air being applied to the fuel cell stack to increase and decrease so that the buffer of extra fuel and air is maintained substantially constant.
摘要翻译： 一种采用负载追踪算法的燃料电池生成系统，其根据需要从燃料电池提供期望的输出功率。 该系统包括一个牵引电流传感器，它测量从用于满足系统负载要求的燃料电池中抽出的电流。 负载跟踪算法使用测量的牵引电流来识别适当的燃料和空气量以满足负载需求，然后向燃料电池提供额外的燃料和空气的缓冲器，因此如果负载需求突然增加，燃料电池是 能够立即产生额外的输出功率。 随着从燃料电池抽取的电流响应于负载需求的变化而变化，负载跟随算法导致燃料和空气被施加到燃料电池堆的量增加和减少，使得额外的燃料和空气的缓冲器基本保持 不变。
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3.发明授权Fuel cell stack shutdown operation controlling anode pressure using discharge fuel consumption estimate 有权燃料电池堆关闭运行使用排放燃料消耗估算来控制阳极压力公开(公告)号：US08906566B2
公开(公告)日：2014-12-09
申请号：US12716333
申请日：2010-03-03
IPC分类号： H01M8/04
摘要： A method including shutting down an electrochemical fuel cell stack wherein anode pressure is controlled according to a stack discharge fuel consumption estimate.
摘要翻译： 一种包括关闭电化学燃料电池堆的方法，其中阳极压力根据堆放电燃料消耗估计被控制。
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4.发明申请METHOD TO PREDICT MIN CELL VOLTAGE FROM DISCRETE MIN CELL VOLTAGE OUTPUT OF STACK HEALTH MONITOR 有权预测堆叠健康监测器离散最小电池电压输出的最小电池电压的方法公开(公告)号：US20120019254A1
公开(公告)日：2012-01-26
申请号：US12840014
申请日：2010-07-20
IPC分类号： G01N27/416
CPC分类号： H01M8/04552 , H01M8/04559 , H01M8/04589 , H01M8/04992 , H01M2008/1095
摘要： A system for estimating parameters of a fuel cell stack. The system includes a stack health monitor for monitoring minimum cell voltage, stack voltage and current density of the fuel cell stack. The stack health monitor also indicates when a predetermined minimum cell voltage threshold level has been achieved. The system further includes a controller configured to control the fuel cell stack, where the controller determines and records the average fuel cell voltage. The controller generates and stores artificial data points proximate to the one or more predetermined minimum cell voltage threshold levels each time the minimum cell voltage drops below the one or more predetermined minimum cell voltage threshold levels so as to provide an estimation of the fuel cell stack parameters including a minimum cell voltage trend and a minimum cell voltage polarization curve.
摘要翻译： 一种用于估计燃料电池堆的参数的系统。 该系统包括用于监测燃料电池堆的最小电池电压，堆叠电压和电流密度的堆叠健康监测器。 堆栈运行状况监视器还指示何时已经实现了预定的最小单元电压阈值电平。 该系统还包括控制器，其被配置为控制燃料电池堆，其中控制器确定并记录燃料电池的平均电压。 每当最小单元电压下降到低于一个或多个预定最小单元电压阈值电平时，控制器产生并存储靠近一个或多个预定最小单元电压阈值电平的人造数据点，以便提供燃料电池堆参数的估计 包括最小电池电压趋势和最小电池电压极化曲线。
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公开(公告)号：US20050119842A1
公开(公告)日：2005-06-02
申请号：US10725680
申请日：2003-12-02
CPC分类号： H01M16/006 , H01M8/04567 , H01M8/04589 , H01M8/04604 , H01M8/04753 , H01M8/04917 , H01M8/04992
摘要： A fuel cell generation system employing a load following algorithm that provides the desired output power from the fuel cell on demand. The system includes a draw current sensor that measures the current drawn from the fuel cell used to satisfy the system load demands. The load following algorithm uses the measured draw current to identify the proper amount of fuel and air to meet the load demands, and then provides a buffer of extra fuel and air to the fuel cell so if the load demand suddenly increases, the fuel cell is able to immediately produce the extra output power. As the current drawn from the fuel cell changes in response to changing load demands, the load following algorithm causes the amount of fuel and air being applied to the fuel cell stack to increase and decrease so that the buffer of extra fuel and air is maintained substantially constant.
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6.发明申请Control of a hydrogen purifying pressure swing adsorption unit in fuel processor module for hydrogen generation 有权控制用于氢气生成的燃料处理器模块中的氢气净化变压吸附单元公开(公告)号：US20050098033A1
公开(公告)日：2005-05-12
申请号：US10706319
申请日：2003-11-12
申请人： Kiran Mallavarapu , John Ruhl , Craig Gittleman
发明人： Kiran Mallavarapu , John Ruhl , Craig Gittleman
IPC分类号： B01D53/02 , B01D53/04 , B01D53/047
CPC分类号： B01D53/047 , B01D53/0473 , B01D53/261 , B01D2256/16 , B01D2257/102 , B01D2257/502 , B01D2257/504 , B01D2257/7025 , B01D2257/80 , B01D2258/0208 , B01D2259/40005 , B01D2259/40009 , B01D2259/4566 , Y02C10/08 , Y02C20/20
摘要： A PSA unit for purifying hydrogen in a fuel processor system. The PSA unit employs rotary valves that cycle the pressurization of vessels, including an adsorbent, between a high pressure state and a low pressure state. The purified hydrogen is released from the vessels through a purified gas output port when the vessels are in the high pressure state and the impurities are released through an exhaust port when the vessels are in the low pressure state. The PSA unit also employs a mass flow control device and a pressure sensor in the purified gas output port. A controller receives a pressure signal from the pressure sensor, and controls the flow through the mass flow control device and the speed of the rotary valves so that the proper pressure is maintained at the hydrogen output port.
摘要翻译： 用于在燃料处理器系统中净化氢的PSA单元。 PSA单元使用旋转阀，其在高压状态和低压状态之间循环包括吸附剂在内的容器的加压。 当容器处于高压状态时，净化的氢气通过净化的气体输出口从容器中释放出来，并且当容器处于低压状态时杂质通过排气口释放。 PSA单元还在净化气体输出口中采用质量流量控制装置和压力传感器。 控制器从压力传感器接收压力信号，并控制通过质量流量控制装置的流量和旋转阀的速度，使得在氢气输出口保持适当的压力。
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7.发明授权Method to predict min cell voltage from discrete min cell voltage output of stack health monitor 有权从堆叠健康监测器的离散最小电池电压输出预测最小电池电压的方法公开(公告)号：US08405399B2
公开(公告)日：2013-03-26
申请号：US12840014
申请日：2010-07-20
IPC分类号： G01N27/416
CPC分类号： H01M8/04552 , H01M8/04559 , H01M8/04589 , H01M8/04992 , H01M2008/1095
摘要： A system for estimating parameters of a fuel cell stack. The system includes a stack health monitor for monitoring minimum cell voltage, stack voltage and current density of the fuel cell stack. The stack health monitor also indicates when a predetermined minimum cell voltage threshold level has been achieved. The system further includes a controller configured to control the fuel cell stack, where the controller determines and records the average fuel cell voltage. The controller generates and stores artificial data points proximate to the one or more predetermined minimum cell voltage threshold levels each time the minimum cell voltage drops below the one or more predetermined minimum cell voltage threshold levels so as to provide an estimation of the fuel cell stack parameters including a minimum cell voltage trend and a minimum cell voltage polarization curve.
摘要翻译： 一种用于估计燃料电池堆的参数的系统。 该系统包括用于监测燃料电池堆的最小电池电压，堆叠电压和电流密度的堆叠健康监测器。 堆栈运行状况监视器还指示何时已经实现了预定的最小单元电压阈值电平。 该系统还包括控制器，其被配置为控制燃料电池堆，其中控制器确定并记录燃料电池的平均电压。 每当最小单元电压下降到低于一个或多个预定最小单元电压阈值电平时，控制器产生并存储靠近一个或多个预定最小单元电压阈值电平的人造数据点，以便提供燃料电池堆参数的估计 包括最小电池电压趋势和最小电池电压极化曲线。
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公开(公告)号：US20110217609A1
公开(公告)日：2011-09-08
申请号：US12716333
申请日：2010-03-03
IPC分类号： H01M8/04
摘要： A method including shutting down an electrochemical fuel cell stack wherein anode pressure is controlled according to a stack discharge fuel consumption estimate.
摘要翻译： 一种包括关闭电化学燃料电池堆的方法，其中阳极压力根据堆放电燃料消耗估计被控制。
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公开(公告)号：US07132181B2
公开(公告)日：2006-11-07
申请号：US10637832
申请日：2003-08-08
IPC分类号： H01M8/04
CPC分类号： H01M8/04231
摘要： Hydrogen in a fuel cell is vented and purged with a fail-closed valve using stored energy (e.g. from a capacitor) when a diagnostic parameter is outside of an acceptable operating range. The valve closes after the stored energy has depleted. A safety switch in the relay circuit of the solenoid switch (or solenoid valve) is also grounded in computer-implemented shutdowns. Benefits from the invention include use of air-compatible catalysts, minimized parasitic losses to power output, minimized contamination of fuel cell internal surfaces after venting, minimized risk of explosive mixture buildup, and efficient operation.
摘要翻译： 当诊断参数在可接受的工作范围之外时，使用存储的能量（例如来自电容器），利用故障关闭阀将燃料电池中的氢气排出并吹扫。 存储的能量耗尽后阀门关闭。 电磁开关（或电磁阀）的继电器电路中的安全开关也接地在计算机执行的关机中。 本发明的优点包括使用空气兼容的催化剂，最小化功率输出的寄生损耗，最小化排气后燃料电池内表面的污染，最小化爆炸性混合物积聚的风险和有效的操作。
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10.发明授权Algorithm for stack current controller based on polarization curve estimation of a fuel cell stack 有权基于燃料电池堆的极化曲线估计的堆叠电流控制器算法公开(公告)号：US08722264B2
公开(公告)日：2014-05-13
申请号：US12027063
申请日：2008-02-06
申请人： Sriram Ganapathy , Kiran Mallavarapu , Balasubramanian Lakshmanan , John P. Salvador , Frank X. Leo
发明人： Sriram Ganapathy , Kiran Mallavarapu , Balasubramanian Lakshmanan , John P. Salvador , Frank X. Leo
IPC分类号： H01M8/04
CPC分类号： H01M8/04992 , H01M8/04619 , H01M8/04679 , H01M8/0491
摘要： A method for providing a current density set-point for a fuel cell stack in response to a power request from the stack where the set-point is determined based on system parameters that identify the life and degradation of the stack. The method includes dividing a current density range of the fuel cell stack into a predetermined number of sample regions, and selecting the sample regions in order from low to high during the current set-point analysis. The method calculates an average cell voltage for the current density of the selected sample region, and stack power from the average cell voltage. The method then determines whether a power request signal is less than the stack power for the selected sample region and greater than the calculated power for the previous sample region, and if so, calculates the current density set-point at the requested power based on these values.
摘要翻译： 一种用于响应于来自堆栈的功率请求提供用于燃料电池堆的电流密度设定点的方法，其中基于识别堆的寿命和劣化的系统参数来确定设定点。 该方法包括将燃料电池堆的电流密度范围划分为预定数量的样本区域，并且在当前设定点分析期间从低到高依次选择样本区域。 该方法计算所选样品区域的电流密度的平均电池电压，并从平均电池电压堆叠功率。 然后，该方法确定功率请求信号是否小于所选择的采样区域的堆叠功率，并且大于先前采样区域的计算功率，并且如果是，则基于这些来计算所请求功率的电流密度设定点 价值观。
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