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51. 发明申请

US20150097571A1 APPARATUS AND METHOD FOR AUTOMATIC GROUND FAULT LOCATION DETERMINATION IN HIGH RESISTANCE GROUNDED MOTOR DRIVE SYSTEM 有权
标题翻译：高电压接地电机驱动系统自动接地故障定位装置及方法
公开(公告)号：US20150097571A1
公开(公告)日：2015-04-09
申请号：US14048156
申请日：2013-10-08
申请人： Lixiang Wei , Jeffrey D. McGuire , Jiangang Hu , Zhijun Liu
发明人： Lixiang Wei , Jeffrey D. McGuire , Jiangang Hu , Zhijun Liu
IPC分类号： G01R31/08 , G01R31/02
CPC分类号： G01R31/088 , B60L3/0069 , B60L3/04 , B60L2220/42 , G01R31/005 , G01R31/025 , G01R31/086 , H02H3/16 , Y02T10/646 , Y02T90/16
摘要： A PLC or other industrial controller programmed to locate ground faults in a networked high resistance grounded multi-drive system through network communications messaging to automatically place networked motor drives in various operational states to isolate individual drives for ground fault identification testing and selectively identify individual drives as suspected ground fault locations.
摘要翻译： PLC或其他工业控制器被编程为通过网络通信消息传送到联网的高电阻接地多驱动系统中的接地故障，以将网络电机驱动器自动放置在各种操作状态，以隔离各个驱动器进行接地故障识别测试，并选择性地将各个驱动器识别为怀疑接地故障位置。

52. 发明授权

US08910372B2 Method of fabricating a choke assembly 有权
标题翻译：扼流器组件的制造方法
公开(公告)号：US08910372B2
公开(公告)日：2014-12-16
申请号：US13403401
申请日：2012-02-23
申请人： John R. Brubaker , Lixiang Wei
发明人： John R. Brubaker , Lixiang Wei
IPC分类号： H01F7/06 , H01F41/00 , H01F37/00 , H01F27/04 , H01F41/10
CPC分类号： H01F37/00 , H01F27/04 , H01F41/005 , H01F41/10 , Y10T29/4902 , Y10T29/49071 , Y10T29/49073 , Y10T29/49076
摘要： An improved choke assembly for a power electronics device is provided. More specifically, a choke assembly with improved protection from environmental conditions such as dirt and water is provided. An improved choke assembly may include an insulative housing for an inductor coil that seals the inductor coil from the environment.
摘要翻译：提供了一种用于电力电子设备的改进的扼流组件。更具体地，提供了具有改善的防止环境条件例如污物和水的阻塞组件。改进的扼流组件可以包括用于将电感线圈与环境密封的电感线圈的绝缘外壳。

53. 发明授权

US08698504B2 System for detection of a ground fault in a high resistance ground network 有权
标题翻译：用于检测高阻地面网络中接地故障的系统
公开(公告)号：US08698504B2
公开(公告)日：2014-04-15
申请号：US12901512
申请日：2010-10-09
申请人： Lixiang Wei , Zhijun Liu , Brian Patrick Brown , David W. Kirschnik , Russ J. Kerkman , Richard A. Lukaszewski , Gary Skibinski , Carlos Daniel Rodriguez-Valdez
发明人： Lixiang Wei , Zhijun Liu , Brian Patrick Brown , David W. Kirschnik , Russ J. Kerkman , Richard A. Lukaszewski , Gary Skibinski , Carlos Daniel Rodriguez-Valdez
IPC分类号： G01R31/14
CPC分类号： G01R31/025 , H02H3/16 , H02H7/08
摘要： A method is provided for detection of a ground fault in a high resistance network in a voltage source power conversion circuit comprising a power converter that converts incoming AC power to DC power applied to a DC bus and an inverter that converts DC power from the DC bus to output AC power. The method includes detecting a midpoint-to-ground voltage between a low side of the DC bus and a ground potential and detecting the presence of a ground fault in a high resistance network based upon the detected midpoint-to-ground voltage.
摘要翻译：提供一种用于检测电压源电力转换电路中的高电阻网络中的接地故障的方法，该电压源电力转换电路包括将输入AC电力转换为施加到DC总线的DC电力的电力转换器和从DC总线转换DC电力的逆变器输出交流电源。该方法包括检测DC总线的低侧与地电位之间的中点到地电压，并且基于检测到的中点到地电压来检测高电阻网络中的接地故障的存在。

54. 发明申请

US20130241451A1 APPARATUS AND METHOD FOR ENERGY EFFICIENT MOTOR DRIVE STANDBY OPERATION 有权
标题翻译：用于能量效率电动机驱动器待机操作的装置和方法
公开(公告)号：US20130241451A1
公开(公告)日：2013-09-19
申请号：US13418775
申请日：2012-03-13
申请人： Lixiang Wei , Yogesh Popatlal Patel , Brian P. Brown
发明人： Lixiang Wei , Yogesh Popatlal Patel , Brian P. Brown
IPC分类号： H02P27/00
CPC分类号： H02J9/005 , H02M1/36 , H02M5/4585 , H02M7/125 , H02M2001/0032 , H02P27/06 , Y02B70/16
摘要： Motor drive apparatus and methods are presented in which a standby controller uses at least one switching device to power an inverter in a normal mode and to remove power from the inverter and other motor drive components during a standby mode for improved energy efficiency.
摘要翻译：提出了一种电动机驱动装置和方法，其中待机控制器使用至少一个开关装置在正常模式下为逆变器供电，并且在待机模式期间从逆变器和其它电动机驱动部件移除电能以提高能量效率。

55. 发明授权

US08519655B2 DC bus boost method and system for regenerative brake 有权
标题翻译：直流母线升压方式及再生制动系统
公开(公告)号：US08519655B2
公开(公告)日：2013-08-27
申请号：US13482658
申请日：2012-05-29
申请人： Lixiang Wei , Richard A. Lukaszewski , Russel Kerkman , Brian J. Seibel
发明人： Lixiang Wei , Richard A. Lukaszewski , Russel Kerkman , Brian J. Seibel
IPC分类号： H02P27/00
CPC分类号： H02M1/083 , B60L2210/20 , H02M5/4585 , H02M2007/2195 , H02P23/06 , H02P25/105 , H02P27/08 , Y02T10/642 , Y02T10/725
摘要： Embodiments of the present invention provide novel techniques for using a switched converter to provide for three-phase alternating current (AC) rectification, regenerative braking, and direct current (DC) voltage boosting. In particular, one of the three legs of the switched converter is controlled with a set of pulse width modulation (PWM) control signals so that the input AC phase having the highest voltage is rectified and one of the switches in the two other legs is turned on to allow for added voltage. This switching activity allows for voltage from multiple AC line mains to be combined, resulting in an overall boost of the DC voltage of the rectifier. The DC voltage boost can then be applied to the common DC bus in order to ameliorate voltage sags, help with motor starts, and increase the ride-through capability of the motor.
摘要翻译：本发明的实施例提供了使用开关转换器来提供三相交流（AC）整流，再生制动和直流（DC）升压）的新技术。特别地，开关转换器的三条腿之一由一组脉冲宽度调制（PWM）控制信号控制，使得具有最高电压的输入AC相被整流，并且另外两条腿中的一个开关被转动允许增加电压。该开关活动允许来自多个AC线路电源的电压被组合，导致整流器的直流电压的总体升高。直流电压升压可以应用于公共直流总线，以改善电压下降，有助于电机启动，并增加电机的穿越能力。

56. 发明授权

US08471516B2 Adjustable speed drive lifetime improvement method 有权
标题翻译：可调速驱动寿命改善方法
公开(公告)号：US08471516B2
公开(公告)日：2013-06-25
申请号：US12786229
申请日：2010-05-24
申请人： Lixiang Wei , Richard A. Lukaszewski , Russel J. Kerkman
发明人： Lixiang Wei , Richard A. Lukaszewski , Russel J. Kerkman
IPC分类号： G05B11/28
CPC分类号： H02M7/537 , H02M7/53875 , H02P9/007 , H02P27/08 , H02P29/68
摘要： The present techniques include methods and systems for operating an inverter to maintain a lifespan of the inverter. In some embodiments, the switching frequency and/or the output current of the inverter may be changed such that stress may be reduced on the inverter bond wires of the inverter. More specifically, embodiments involve calculating the aging parameters for certain operating conditions of the inverter and determining whether the operating conditions result in aging the inverter to a point which reduces the inverter lifespan below a desired lifespan. If the operating conditions reduce the inverter lifespan below the desired lifespan, the switching frequency may be reduced to a lower or minimum switching frequency of the inverter and/or the output current of the inverter may be reduced to a maximum output current at the minimum switching frequency.
摘要翻译：本技术包括用于操作逆变器以维持逆变器寿命的方法和系统。在一些实施例中，可以改变逆变器的开关频率和/或输出电流，使得逆变器的反相器接合线上的应力可能减小。更具体地，实施例涉及计算逆变器的某些工作条件的老化参数，并且确定操作条件是否导致变频器老化到将变频器寿命降低到期望寿命以下的时间点。如果工作条件将变频器寿命降低到期望的寿命以下，开关频率可以降低到变频器的较低或最小开关频率，和/或可以将逆变器的输出电流降至最小输出电流频率。

57. 发明授权

US08395469B2 Multi-phase transformer 有权
标题翻译：多相变压器
公开(公告)号：US08395469B2
公开(公告)日：2013-03-12
申请号：US12901251
申请日：2010-10-08
申请人： Gary L. Skibinski , Lixiang Wei
发明人： Gary L. Skibinski , Lixiang Wei
IPC分类号： H01F30/12 , H01F21/02 , H02M5/00 , H02M5/06 , H02M5/14
CPC分类号： H01F30/14
摘要： A transformer for converting 3 phase AC to 9 phase AC power is provided. The transformer includes first, second and third coils, each coil having a plurality of serial windings coupled together to form a polygon. The transformer further includes first, second and third input terminals each linked to a respective winding of the first, second and third coils. The input terminals are configured to receive a first, second and third phases of input AC power and at least one selected input terminal of the first, second and third input terminals is adjustable to alter a number of turns of the respective winding of the corresponding first, second or third coil on either side of the selected input terminal. The transformer further includes first through ninth output terminals linkable to first through ninth output power lines.
摘要翻译：提供了一种用于将三相交流转换为9相交流电源的变压器。变压器包括第一，第二和第三线圈，每个线圈具有耦合在一起以形成多边形的多个串联绕组。变压器还包括第一，第二和第三输入端子，每个输入端子连接到第一，第二和第三线圈的相应绕组。输入端子被配置为接收输入AC电力的第一，第二和第三相，并且第一，第二和第三输入端子的至少一个选择的输入端子是可调节的，以改变相应的第一，第二和第三相位的相应绕组的匝数，所选输入端的任一侧上的第二或第三线圈。变压器还包括可连接到第一至第九输出电力线的第一至第九输出端子。

58. 发明授权

US08379417B2 Power converter and integrated DC choke therefor 有权
公开(公告)号：US08379417B2
公开(公告)日：2013-02-19
申请号：US13177100
申请日：2011-07-06
申请人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng , Lixiang Wei
发明人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng , Lixiang Wei
IPC分类号： H02M5/45 , H01F27/36
CPC分类号： H02J3/36 , H01F3/12 , H01F30/06 , H01F37/00 , H01F38/023 , H01F2038/026 , H02M1/14 , H02M5/4585 , H02M2001/123
摘要： A power conversion system and a DC link choke therefore are presented, in which a continuous core structure is provided with first and second legs around which four or more windings are located, with one or more shunt structures providing a magnetic flux path between intermediate portions of the first and second legs.

59. 发明申请

US20120262129A1 DOUBLE FED INDUCTION GENERATOR CONVERTER AND METHOD FOR SUPPRESSING TRANSIENT IN DEACTIVATION OF CROWBAR CIRCUIT FOR GRID FAULT RIDETHROUGH 有权
标题翻译：双FED感应发生器转换器和用于抑制用于故障故障的桥梁电路的瞬时停止的方法
公开(公告)号：US20120262129A1
公开(公告)日：2012-10-18
申请号：US13085639
申请日：2011-04-13
申请人： Haihui Lu , Zhenhuan Yuan , Lixiang Wei , Russel Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed
发明人： Haihui Lu , Zhenhuan Yuan , Lixiang Wei , Russel Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed
IPC分类号： H02P9/10
CPC分类号： H02P9/007 , H02P9/10
摘要： A double fed induction generator (DFIG) system and controller are presented in which the rotor side converter is preloaded with one or more initial values for resuming regulated operation to counteract transients upon deactivation of the crowbar protection circuit to provide grid fault ride through.
摘要翻译：提出了一种双馈感应发电机（DFIG）系统和控制器，其中转子侧转换器预载有一个或多个初始值，用于恢复调节操作，以在停用撬棒保护电路时抵消瞬变以提供电网故障穿越。

60. 发明申请

US20120249038A1 GROUND SCHEME IDENTIFICATION METHOD 有权
标题翻译：地面方案识别方法
公开(公告)号：US20120249038A1
公开(公告)日：2012-10-04
申请号：US13077212
申请日：2011-03-31
申请人： Lixiang Wei , David W. Kirschnik , Richard A. Lukaszewski , Gary L. Skibinski
发明人： Lixiang Wei , David W. Kirschnik , Richard A. Lukaszewski , Gary L. Skibinski
IPC分类号： G01R31/02
CPC分类号： G01R31/025 , G01R31/42 , H02M5/458
摘要： The present techniques include methods and systems for detecting the grounding condition of an electrical system to automatically determine a suitable electrical drive configuration. The drive includes a test resistor which may be connected or disconnected from the drive to measure different drive voltages. The measured drive voltages are analyzed to determine a type of grounding configuration of the electrical system in which the drive is to be installed. Embodiments also include determining ground resistance condition such as a high resistance ground (HRG) fault or a ground resistance fault when the drive is in operation.
摘要翻译：本技术包括用于检测电气系统的接地状态以自动确定合适的电气驱动配置的方法和系统。该驱动器包括可以与驱动器连接或断开的测试电阻，以测量不同的驱动电压。分析测量的驱动电压以确定要安装驱动器的电气系统的接地配置类型。实施例还包括当驱动器运行时确定诸如高电阻接地（HRG）故障或接地电阻故障之类的接地电阻状况。

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