公开(公告)号：US20040249876A1

公开(公告)日：2004-12-09

申请号：US10797905

申请日：2004-03-09

申请人： Ballard Power Systems Corporation

发明人： Anil Tuladhar

IPC分类号： G01R013/00 ,  G06F007/38

CPC分类号： G01R19/02 ,  H02J3/38

摘要： Techniques for determining root mean square (RMS) values of a signal for controlling operation of grid-linked converters, such as DC-to-AC inverters, via squaring the signal, sampling the squared signal n times during a cycle period to obtain n samples, summing the first nnull1 samples to obtain a first value, multiplying the first value by a sampling time and a frequency of the signal to obtain a second value, determining a compensation factor, adding the compensation factor to the second value to obtain a third value, and determining a square root of the third value to obtain a RMS result.

摘要翻译： 用于通过平均信号来确定用于控制诸如DC到AC逆变器的并网转换器的操作的信号的均方根（RMS）值的技术，在周期期间对平方信号进行n次采样以获得n个采样 对所述第一n-1采样求和以获得第一值，将所述第一值乘以采样时间和所述信号的频率以获得第二值，确定补偿因子，将所述补偿因子加到所述第二值以获得 并且确定第三值的平方根以获得RMS结果。

公开(公告)号：US20040227231A1

公开(公告)日：2004-11-18

申请号：US10642391

申请日：2003-08-14

申请人： Ballard Power Systems Corporation

发明人： Douglas K. Maly ,  Sayeed Ahmed ,  Ajay V. Patwardhan ,  Fred Flett

IPC分类号： H01L023/34

CPC分类号： H01L24/49 ,  H01L23/552 ,  H01L24/48 ,  H01L25/072 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01039 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/014 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/19041 ,  H01L2924/30107 ,  H01L2924/3011 ,  H02M7/003 ,  H01L2924/00 ,  H01L2224/45099

摘要： A power module employs at least one capacitor electrically coupled across the input terminals to reduce voltage overshoot. The capacitor may be surface mounted to a high side collector plating area and a low side emitter plating area.

摘要翻译： 功率模块采用至少一个电容器电耦合在输入端子之间以减少电压过冲。 电容器可以表面安装到高侧集电极电镀区域和低侧发射极电镀区域。

公开(公告)号：US20040047092A1

公开(公告)日：2004-03-11

申请号：US10658559

申请日：2003-09-08

申请人： Ballard Power Systems Corporation

发明人： Orrin B. West

IPC分类号： H02H003/00

CPC分类号： H02M1/15 ,  H02M2001/123

摘要： A device inserted between a grounded poly-phase external voltage source and a load providing low insertion loss for differential mode currents and high insertion loss for ground currents. The device receives voltages from the grounded poly-phase external voltage source over atone or more voltage lines. The voltages contain common mode voltages. A filter connected to each of the voltage lines reduces the ground current from the load. A summing block adds the voltages from each of the voltage lines to generate a total common mode voltage. A ground referenced controlled voltage source generates a cancellation voltage equal to the total common mode voltage in response to the generation of total common mode voltage. The total common mode voltage is injected into the filter and substantially reduces the common mode voltage on each voltage line thereby substantially reducing the ground currents associated with each common mode voltage on each voltage line.

摘要翻译： 一个器件插在接地的多相外部电压源和负载之间，为差动模式电流提供低插入损耗，并为接地电流提供高插入损耗。 该器件通过一条或多条电压线从接地的多相外部电压源接收电压。 电压包含共模电压。 连接到每个电压线的滤波器减小了来自负载的接地电流。 求和块将来自每个电压线的电压相加以产生总共模电压。 接地参考的受控电压源响应于总共模电压的产生产生等于总共模电压的抵消电压。 总共模电压被注入到滤波器中并且基本上减小每个电压线上的共模电压，从而基本上减小与每个电压线上的每个共模电压相关联的接地电流。

公开(公告)号：US20040033729A1

公开(公告)日：2004-02-19

申请号：US10443646

申请日：2003-05-21

申请人： Ballard Power Systems Corporation

发明人： Ajay V. Patwardhan ,  John Franklin

IPC分类号： H01R013/04

CPC分类号： H01R13/405 ,  H01R4/56 ,  H01R2201/10

摘要： A three-phase connector carries all three phases in one connector and keeps the phases properly isolated from each other and the motor case. The three-phase connector has metal connector components that are spaced from one another and supported in a nylon over molding covering each of the connector components, except for upper and lower exposed ends of the connector components, which are each drilled and tapped to receive bolts. First and second connector components extend above and below a flange of the three-phase connector with their respective exposed upper and lower ends offset in different planes than the exposed upper and lower ends of the third connector component.

摘要翻译： 三相连接器将一个连接器中的所有三相连接起来，并保持相位彼此正确隔离和电动机壳体。 三相连接器具有金属连接器部件，其彼此间隔开并且被支撑在覆盖每个连接器部件的尼龙覆盖件中，除了连接器部件的上和下暴露端之外，每个连接器部件被钻孔和轻敲以接收螺栓 。 第一和第二连接器部件在三相连接器的凸缘的上方和下方延伸，并且其相应的暴露的上端和下端偏离与第三连接器部件的暴露的上端和下端不同的平面。

公开(公告)号：US20030222507A1

公开(公告)日：2003-12-04

申请号：US10159603

申请日：2002-05-31

申请人： Ballard Power Systems Corporation

发明人： Doug D. Deng

IPC分类号： H02J001/00

CPC分类号： H02J3/40 ,  Y10T307/511 ,  Y10T307/735 ,  Y10T307/839

摘要： A hybrid use of a phase-locked-loop controller and a microprocessor-based controller to synchronize the phase angles of a three-phase AC power source, such as a static power converter, with those of a three-phase power grid. The phase-angle synchronization may enable the AC power source to be safely connected to the power grid to provide additional power capacity.

摘要翻译： 混合使用锁相环控制器和基于微处理器的控制器来将三相AC电源（例如静态功率转换器）的相位角与三相电网的相位角同步。 相角同步可以使得AC电源能够安全地连接到电网以提供额外的电力容量。

公开(公告)号：US20030165036A1

公开(公告)日：2003-09-04

申请号：US10345871

申请日：2003-01-15

申请人： Ballard Power Systems Corporation

发明人： Anil Tuladhar

IPC分类号： H02H003/00

CPC分类号： H02J3/38 ,  H02J2003/388

摘要： A device and method for detecting islanding of a grid connected inverter makes use of an injected white noise as a perturbing force on the output voltage of the inverter. The white noise is injected at least once in every cycle and can be generated at different rates in implementation. On loss of the grid, a frequency drift of the output voltage is detected and a positive feedback is activated that accelerates the drift.

摘要翻译： 用于检测并网逆变器的孤岛检测的装置和方法利用注入的白噪声作为逆变器的输出电压的扰动力。 白噪声在每个周期中至少注入一次，并且可以以不同的速率在实现中产生。 在电网丢失时，检测到输出电压的频率漂移，激活正反馈，加速漂移。

公开(公告)号：US20020167828A1

公开(公告)日：2002-11-14

申请号：US10109555

申请日：2002-03-27

申请人： Ballard Power Systems Corporation

发明人： Scott Parkhill ,  Sayeed Ahmed ,  Fred Flett

IPC分类号： H05K007/00

CPC分类号： H01L25/072 ,  H01L2223/665 ,  H01L2924/0002 ,  H02M7/003 ,  H05K1/0215 ,  H05K1/0237 ,  H05K1/0306 ,  H05K7/1432 ,  H05K2201/09345 ,  H05K2201/10446 ,  H05K2201/10636 ,  H05K2203/049 ,  Y02P70/611 ,  Y10T29/49002 ,  Y10T29/49009 ,  Y10T29/49117 ,  Y10T29/49126 ,  H01L2924/00

摘要： A DC bus for use in a power module has a positive DC conductor bus plate parallel with a negative DC conductor bus plate. One or more positive leads are connected to the positive bus and are connectable to a positive terminal of a power source. One or more negative leads are connected to the negative bus and are connectable to a negative terminal of a power source. The DC bus has one or more positive connections fastenable from the positive bus to the high side of a power module. The DC bus also has one or more negative connections fastenable from the negative bus to the low side of the power module. The positive bus and negative bus permit counter-flow of currents, thereby canceling magnetic fields and their associated inductances, and the positive and negative bus are connectable to the center portion of a power module.

公开(公告)号：US20040228094A1

公开(公告)日：2004-11-18

申请号：US10642424

申请日：2003-08-14

申请人： Ballard Power Systems Corporation

发明人： Sayeed Ahmed ,  Fred Flett ,  Ajay V. Patwardhan ,  Douglas K. Maly

IPC分类号： H05K007/20

CPC分类号： H01L24/49 ,  H01L23/552 ,  H01L24/48 ,  H01L25/072 ,  H01L2224/48091 ,  H01L2224/49 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01047 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/014 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/19041 ,  H01L2924/30107 ,  H02M7/003 ,  H01L2924/00 ,  H01L2224/45099

摘要： A dual power module architecture employing a high degree of modularity, that allows a base power module to be quickly, easily, and cost effectively configured to address a large variety of applications.

摘要翻译： 采用高度模块化的双电源模块架构，允许基本电源模块快速，轻松，经济高效地配置以解决各种各样的应用。

公开(公告)号：US20040062059A1

公开(公告)日：2004-04-01

申请号：US10622845

申请日：2003-07-18

申请人： Ballard Power Systems Corporation

发明人： Bing Cheng ,  Fengtai Huang

IPC分类号： H02M003/335

CPC分类号： H02M7/797 ,  B60L53/22 ,  B60L53/24 ,  B60L58/34 ,  B60L58/40 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2220/18 ,  B60L2240/526 ,  B60L2240/527 ,  B60L2240/529 ,  H02J5/00 ,  H02J7/02 ,  H02M7/219 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T10/92 ,  Y02T90/127 ,  Y02T90/14 ,  Y02T90/34

摘要： A power system, such as an integrated power module comprising a bi-directional converter, functionally combines a power inverter and a charger such as a charger for charging one or more electrical storage devices such as batteries and/or super- or ultra-capacitors. A first switch selectively couples one or more AC devices to the bi-directional converter, and/or a second switch selectively couples a boosting circuit to one or more DC devices and/or reverses polarity of the coupling. The power system may have electric vehicle and/or vehicle-to-grid applications.

摘要翻译： 诸如包括双向转换器的集成电源模块的电力系统在功能上组合电力逆变器和充电器，例如用于对诸如电池和/或超级或超电容器的一个或多个蓄电装置进行充电的充电器。 第一开关将一个或多个AC装置选择性地耦合到双向转换器，和/或第二开关选择性地将升压电路耦合到一个或多个DC装置和/或反转耦合的极性。 电力系统可以具有电动车辆和/或车对电网应用。

公开(公告)号：US20040036434A1

公开(公告)日：2004-02-26

申请号：US10449824

申请日：2003-05-30

申请人： Ballard Power Systems Corporation

发明人： Li Chen ,  Roy I. Davis ,  Stephen Stella ,  Tod R. Tesch

IPC分类号： H02P007/00

CPC分类号： H02P21/06 ,  B60K6/26 ,  H02P6/08 ,  H02P21/0089 ,  H02P21/22

摘要： A closed-loop permanent magnet motor control method and system optimally partitions torque and flux-weakening currents to produce a desired torque without exceeding the capability of the DC source. A maximum limit for allowable torque current and a minimum threshold for the maximum torque current are determined, and the flux current is varied based at least in part on whether the maximum torque current limit is above or below the minimum threshold while operating in a flux-weakening region to compensate for the variability of the DC source voltage.

摘要翻译： 闭环永磁电动机控制方法和系统最优地分配扭矩和弱磁电流以产生期望的转矩而不超过直流电源的能力。 确定允许转矩电流的最大极限和最大扭矩电流的最小阈值，并且至少部分地基于最大转矩电流极限是否高于或低于最小阈值来改变通量电流，同时在通量 - 弱化区域以补偿直流电源电压的变化。