公开(公告)号：US20050057106A1

公开(公告)日：2005-03-17

申请号：US10728715

申请日：2003-12-04

申请人： Timothy Allen ,  David Seniawski ,  Ziaur Rahman

发明人： Timothy Allen ,  David Seniawski ,  Ziaur Rahman

IPC分类号： H02K5/20 ,  H02K9/19 ,  H02K9/22 ,  H02K9/00 ,  H02K9/20

CPC分类号： H02K9/22 ,  H02K5/20 ,  H02K9/19

摘要： Apparatus and method for cooling and preventing the deterioration of the windings of an electric machine. The apparatus includes an electrically insulative spacer wedgingly disposed between adjacent windings.

摘要翻译： 用于冷却和防止电机绕组变质的装置和方法。 该装置包括楔形地设置在相邻绕组之间的电绝缘间隔件。

公开(公告)号：US06844701B2

公开(公告)日：2005-01-18

申请号：US10345872

申请日：2003-01-15

申请人： Li Chen ,  Richard J. Hampo ,  Venkatapathi R. Nallapa

发明人： Li Chen ,  Richard J. Hampo ,  Venkatapathi R. Nallapa

IPC分类号： H02P23/00 ,  H02P7/36 ,  H02P3/18 ,  H02P5/28 ,  H02P7/00

CPC分类号： H02P23/0004

摘要： Systems and methods for controlling an induction motor including detecting a field weakening operation state of the motor, wherein the field weakening operation state is detected when a flux current, Id, in the motor is reduced to a predetermined fraction of its normal, non-voltage limited value. The systems and methods also including an overmodulation operation state of the motor before said field weakening operation state is detected and enabling the overmodulation operation state of the motor after said field weakening operation state is detected.

摘要翻译： 用于控制感应电动机的系统和方法包括检测电动机的弱磁操作状态，其中当电动机中的磁通电流Id被减小到其正常非电压的预定分数时，检测到弱磁操作状态 有限的价值。 检测到在所述弱磁操作状态之前禁止电动机的过调制操作状态的系统和方法，并且检测到所述弱磁操作状态之后的电动机的过调制操作状态。

公开(公告)号：US20040037097A1

公开(公告)日：2004-02-26

申请号：US10306833

申请日：2002-11-27

申请人： Ballard Power Systems Corporation

发明人： Doug D. Deng ,  Kon-King M. Wang ,  Steven J. Kowalec

IPC分类号： H02M001/12

CPC分类号： H02M7/53803 ,  H02M2001/385

摘要： The present invention relates to a system and method for compensating the voltage distortion and minimizing the available voltage range loss both caused by switching dead-time of solid switch components in power conversion devices. As a result, the power quality supplied from the power conversion devices can be improved and the output voltage of such devices can be increased.

摘要翻译： 本发明涉及一种用于补偿电压失真并最小化由电力转换装置中的固体开关部件的死区时间引起的可用电压范围损失的系统和方法。 结果，可以提高从电力转换装置提供的电力质量，并且可以提高这些装置的输出电压。

公开(公告)号：US07046535B2

公开(公告)日：2006-05-16

申请号：US11003542

申请日：2004-12-03

申请人： Pablo Rodriguez ,  Douglas K. Maly ,  Ajay V. Patwardhan ,  Kanghua Chen ,  Sayeed Ahmed ,  Gerardo Jimenez ,  Fred Flett

发明人： Pablo Rodriguez ,  Douglas K. Maly ,  Ajay V. Patwardhan ,  Kanghua Chen ,  Sayeed Ahmed ,  Gerardo Jimenez ,  Fred Flett

IPC分类号： H02M1/00

CPC分类号： H05K7/1432 ,  H02M7/003 ,  Y10T307/74

摘要： Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additionally, or alternatively, semiconductor devices are thermally coupled to thermally conductive substrates with relatively large surface areas before heat transferred from the semiconductor devices encounters a dielectric or electrically insulating structure with correspondingly high thermal impedance.

公开(公告)号：US20060072263A1

公开(公告)日：2006-04-06

申请号：US10956736

申请日：2004-10-01

申请人： Duo Deng ,  Kenneth Farkas ,  Anil Tuladhar ,  Kerry Grand

发明人： Duo Deng ,  Kenneth Farkas ,  Anil Tuladhar ,  Kerry Grand

IPC分类号： H02H3/00

CPC分类号： H02M5/458 ,  H02J9/062 ,  Y10T307/735 ,  Y10T307/852

摘要： Cycle error correction is performed in an electronic power system to compensate for a difference between an AC grid side frequency and an AC load side frequency. The electronic power system can comprise an electronic power inverter, such as one usable with an uninterruptible power supply. Cycles of signals indicative of the AC grid power and the AC load power are counted and compared to obtain a cycle error value. If the cycle error value exceeds a first value to indicate that AC load side frequency is too high or too low, then compensation is performed to change the AC load side frequency to be closer to the AC grid side frequency. If the cycle error value falls below a second value to indicate that the AC grid side frequency and AC load side frequency are sufficiently close to one another, then the compensation is deactivated.

公开(公告)号：US20050105306A1

公开(公告)日：2005-05-19

申请号：US10713767

申请日：2003-11-14

申请人： Duo Deng ,  Vijay Bhavaraju

发明人： Duo Deng ,  Vijay Bhavaraju

IPC分类号： H02J3/38 ,  H02M5/458 ,  H02M7/797 ,  H02M5/45

CPC分类号： H02J3/383 ,  H02J3/387 ,  H02M5/4585 ,  H02M7/797 ,  Y02B10/14 ,  Y02E10/563

摘要： A power converter system advantageously employs a modular, bi-directionally symmetrical power converter assembly in a readily customizable configuration to interconnect a direct current power source to a three-phase alternating power grid. Connections external to the power converter assembly are selected to optimize the power converter system for a specific application, such as interconnecting a photovoltaic array to the three-phase electrical power grid. The electrical interconnections of various elements including isolation transformers, voltage sensors, and control switches are optimized to improve efficiency and reliability.

摘要翻译： 功率转换器系统有利地采用模块化的双向对称功率转换器组件，其易于定制的配置将直流电源互连到三相交流电网。 选择电力转换器组件外部的连接以优化用于特定应用的功率转换器系统，例如将光伏阵列互连到三相电力电网。 优化了包括隔离变压器，电压传感器和控制开关在内的各种元件的电气互连，以提高效率和可靠性。

公开(公告)号：US06890218B2

公开(公告)日：2005-05-10

申请号：US10443646

申请日：2003-05-21

申请人： Ajay V Patwardhan ,  John Franklin

发明人： Ajay V Patwardhan ,  John Franklin

IPC分类号： H01R4/56 ,  H01R13/405 ,  H01R25/00

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：US06867987B2

公开(公告)日：2005-03-15

申请号：US10461933

申请日：2003-06-13

申请人： Bing Cheng ,  Fengtai Huang

发明人： Bing Cheng ,  Fengtai Huang

IPC分类号： H02M7/48 ,  H02M7/49 ,  H02M1/12

CPC分类号： H02M7/49

摘要： A multilevel inverter control system having logic configured to substantially minimize and area between a target waveform and a step signal of a multilevel inverter.

摘要翻译： 一种多电平逆变器控制系统，其具有被配置为基本上最小化目标波形和多电平逆变器的步进信号之间的面积的逻辑。

公开(公告)号：US06845020B2

公开(公告)日：2005-01-18

申请号：US10453920

申请日：2003-06-02

申请人： Duo Deng ,  Dumitru D. Raceu ,  Kent M. Harmon

发明人： Duo Deng ,  Dumitru D. Raceu ,  Kent M. Harmon

IPC分类号： H02J7/34 ,  H02J9/06 ,  H02M5/458 ,  H02M5/45

CPC分类号： H02J9/062 ,  H02J7/345 ,  H02M5/4585 ,  Y02B10/72 ,  Y02B90/14 ,  Y02E10/566

摘要： A power conversion system which comprises a controller and conversion assemblies which selectively rectify and invert an electrical signal. Conversion assemblies comprise a plurality of integrated gate bipolar transistor assemblies. The power conversion system is effective to convert DC current to AC current, to convert AC current to DC current, and to control the output frequency of a received electrical signal to a conventional operating range.

摘要翻译： 一种电力转换系统，其包括控制器和转换组件，其选择性地校正和反转电信号。 转换组件包括多个集成门双极晶体管组件。 电力转换系统有效地将直流电流转换为交流电流，将交流电流转换为直流电流，并将接收到的电信号的输出频率控制到常规工作范围。

公开(公告)号：US06845017B2

公开(公告)日：2005-01-18

申请号：US09957568

申请日：2001-09-20

申请人： Sayeed Ahmed ,  Scott Parkhill ,  Fred Flett ,  Douglas Maly

发明人： Sayeed Ahmed ,  Scott Parkhill ,  Fred Flett ,  Douglas Maly

IPC分类号： H01L23/66 ,  H01L25/07 ,  H05K1/02 ,  H05K1/03 ,  H01R9/00

CPC分类号： H01L25/072 ,  H01L23/50 ,  H01L23/66 ,  H01L2223/665 ,  H01L2224/48472 ,  H01L2224/49175 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/30107 ,  H01L2924/3011 ,  H05K1/0215 ,  H05K1/0237 ,  H05K1/0306 ,  H05K2201/09345 ,  H05K2201/10446 ,  H05K2201/10636 ,  H05K2203/049 ,  Y02P70/611 ,  H01L2924/00

摘要： A DC bus for use in a power module includes a positive DC conductor bus plate parallel with a negative DC conductor bus plate. 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.

摘要翻译： 用于功率模块的DC总线包括与负DC导体总线板平行的正直流导体母线板。 正母线和负母线允许电流逆流，从而消除磁场及其相关的电感，正负母线可连接到电源模块的中心部分。