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61. 发明授权

US08390414B2 Multi-phase transformer 有权
标题翻译：多相变压器
公开(公告)号：US08390414B2
公开(公告)日：2013-03-05
申请号：US12901311
申请日：2010-10-08
申请人： Lixiang Wei , Bruce W. Weiss , Nickolay N. Guskov
发明人： Lixiang Wei , Bruce W. Weiss , Nickolay N. Guskov
IPC分类号： H01F27/08 , H01F30/12 , H01F27/10
CPC分类号： H01F30/14 , H01F27/08 , H01F27/322 , H01F27/346 , Y10T29/49073
摘要： A transformer for converting 3 phase AC to 9 phase AC power is provided. The transformer comprising a laminated core, first, second and third coils constructed on the laminated core, each coil including several windings. Cooling ducts are provided in each coil, wherein at least one cooling duct is disposed between the laminated core and an adjacent winding of the respective coil. The transformer further includes first, second and third input terminals each linked to the first, second and third coils, and configured to receive a first, second and third phases of input AC power and 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。所述变压器包括层叠铁芯，构造在所述层叠铁芯上的第一，第二和第三线圈，每个线圈包括多个绕组。在每个线圈中设置有冷却管道，其中至少一个冷却管道设置在层叠铁心和相应线圈的相邻绕组之间。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，并且被配置为接收输入AC电力的第一，第二和第三相，以及可连接到第一至第九输出功率的第一至第九输出端子线条。

62. 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。

63. 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。

64. 发明申请

US20120086533A1 MULTI-PHASE TRANSFORMER 有权
标题翻译：多相变压器
公开(公告)号：US20120086533A1
公开(公告)日：2012-04-12
申请号：US12901311
申请日：2010-10-08
申请人： Lixiang Wei , Bruce W. Weiss , Nickolay N. Guskov
发明人： Lixiang Wei , Bruce W. Weiss , Nickolay N. Guskov
IPC分类号： H01F30/14 , H01F41/02 , H02M5/14
CPC分类号： H01F30/14 , H01F27/08 , H01F27/322 , H01F27/346 , Y10T29/49073
摘要： A transformer for converting 3 phase AC to 9 phase AC power is provided. The transformer comprising a laminated core, first, second and third coils constructed on the laminated core, each coil including several windings. Cooling ducts are provided in each coil, wherein at least one cooling duct is disposed between the laminated core and an adjacent winding of the respective coil. The transformer further includes first, second and third input terminals each linked to the first, second and third coils, and configured to receive a first, second and third phases of input AC power and 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。所述变压器包括层叠铁芯，构造在所述层叠铁芯上的第一，第二和第三线圈，每个线圈包括多个绕组。在每个线圈中设置有冷却管道，其中至少一个冷却管道设置在层叠铁心和相应线圈的相邻绕组之间。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，并且被配置为接收输入AC电力的第一，第二和第三相，以及可连接到第一至第九输出功率的第一至第九输出端子线条。

65. 发明申请

US20120086532A1 MULTI-PHASE TRANSFORMER 有权
标题翻译：多相变压器
公开(公告)号：US20120086532A1
公开(公告)日：2012-04-12
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
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。

66. 发明申请

US20120086458A1 SYSTEM FOR DETECTION OF A GROUND FAULT IN A HIGH RESISTANCE GROUND NETWORK 有权
标题翻译：用于在高电压接地网络中检测地面故障的系统
公开(公告)号：US20120086458A1
公开(公告)日：2012-04-12
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。

67. 发明授权

US07728544B2 System and method for controlling input line harmonics in a motor drive 失效
标题翻译：用于控制电机驱动器中输入线谐波的系统和方法
公开(公告)号：US07728544B2
公开(公告)日：2010-06-01
申请号：US11745861
申请日：2007-05-08
申请人： Wei Qian , Qiang Yin , Lixiang Wei , Richard A. Lukaszewski
发明人： Wei Qian , Qiang Yin , Lixiang Wei , Richard A. Lukaszewski
IPC分类号： H02P27/04
CPC分类号： H02M1/126 , H02M1/44 , H02P27/16
摘要： A motor drive system is disclosed that includes a power input configured to receive alternating current (AC) power and a rectifier having a switching frequency selected to convert the AC power to direct current (DC) power. The motor drive unit also includes an input filter circuit connected between the power input and the rectifier and configured to suppress frequency harmonics across a range of harmonics. Additionally, the motor drive unit includes a block filter circuit connected between the power input and the rectifier and configured to substantially block frequency harmonics associated with the switching frequency of the rectifier. Furthermore, the motor drive unit includes an inverter configured to receive the DC power from the rectifier and convert the DC power to a series of pulses configured to drive a motor.
摘要翻译：公开了一种电动机驱动系统，其包括被配置为接收交流（AC）电力的功率输入和具有选择的开关频率的整流器，以将AC功率转换为直流（DC）功率。马达驱动单元还包括连接在功率输入和整流器之间的输入滤波器电路，并被配置为抑制跨越谐波范围的频率谐波。此外，电动机驱动单元包括连接在电力输入和整流器之间的块滤波器电路，并被配置为基本上阻挡与整流器的开关频率相关联的频率谐波。此外，马达驱动单元包括反相器，其被配置为从整流器接收DC电力并将DC电力转换成被配置为驱动马达的一系列脉冲。

68. 发明申请

US20090251081A1 ELECTRIC MOTOR DRIVE EMPLOYING HYBRID, HYSTERETIC/PULSE-WIDTH-MODULATED DYNAMIC BRAKING 有权
标题翻译：混合动力电动马达驱动器，混合动力/脉冲宽度调制动力制动器
公开(公告)号：US20090251081A1
公开(公告)日：2009-10-08
申请号：US12061454
申请日：2008-04-02
申请人： Jerry Dee Thunes , Lixiang Wei
发明人： Jerry Dee Thunes , Lixiang Wei
IPC分类号： H02P3/06
CPC分类号： H02P3/12
摘要： A dynamic braking circuit for an electronic motor drive shunts the DC link of the drive with a resistor using two control strategies. The first control strategy used for lower levels of braking employs a pulse width modulated signal and the second control strategy used for higher levels of braking uses a hysteretic signal significantly reducing switching losses in the semiconductor devices controlling the dynamic braking resistor allowing higher braking capacity.
摘要翻译：用于电动马达驱动的动态制动电路使用两个控制策略使用电阻器来分流驱动器的DC链路。用于较低制动水平的第一种控制策略采用脉宽调制信号，而用于更高制动水平的第二种控制策略使用滞后信号，显着降低控制动态制动电阻器的半导体器件中的开关损耗，从而允许更高的制动能力。

69. 发明授权

US07535738B2 Method and apparatus including multi-drive configurations for medium voltage loads 有权
标题翻译：包括用于中压负载的多驱动配置的方法和装置
公开(公告)号：US07535738B2
公开(公告)日：2009-05-19
申请号：US11508535
申请日：2006-08-23
申请人： Lixiang Wei , Gary Leonard Skibinski , Richard A. Lukaszewski
发明人： Lixiang Wei , Gary Leonard Skibinski , Richard A. Lukaszewski
IPC分类号： H02M7/48 , H02J3/00
CPC分类号： H02M5/458
摘要： A method and apparatus for converting X phase intermediate voltages on X intermediate lines to output voltage for driving a single three phase load, the apparatus comprising a positive DC bus, a negative DC bus and first and second three phase drives that each include a rectifier section and an inverter section, the rectifier sections each linked to a separate three of the X intermediate lines and to the positive and negative DC buses and the inverter linked to each of the positive and negative DC buses and to the single phase load such that each of the drives has a common positive DC bus and a common negative DC bus.
摘要翻译：一种用于将X中间线上的X相中间电压转换成用于驱动单个三相负载的输出电压的方法和装置，所述装置包括正DC总线，负DC总线以及第一和第二三相驱动器，每个驱动器包括整流器部分以及逆变器部，所述整流部分分别连接到X中间线中的三个，以及连接到正和负DC总线中的每一个以及单相负载的正和负DC总线和逆变器，使得每个驱动器具有公共正DC总线和公共负DC总线。

70. 发明授权

US07518891B2 Auxiliary circuit for use with three-phase drive with current source inverter powering a single-phase load 有权
标题翻译：辅助电路，用于三相驱动，电流源逆变器为单相负载供电
公开(公告)号：US07518891B2
公开(公告)日：2009-04-14
申请号：US11461693
申请日：2006-08-01
申请人： Lixiang Wei , Gary L. Skibinski , Richard A. Lukaszewski
发明人： Lixiang Wei , Gary L. Skibinski , Richard A. Lukaszewski
IPC分类号： H02M1/12 , H02M7/00
CPC分类号： H02M1/126 , H02M5/4585
摘要： An auxiliary circuit for reducing low order current harmonics in a three-phase drive system driving a single-phase load, the three-phase drive system including a three-phase source voltage connected to a rectifier system connected to a DC link choke inductor connected to a three-phase current source inverter system.
摘要翻译：用于降低驱动单相负载的三相驱动系统中的低阶电流谐波的辅助电路，所述三相驱动系统包括连接到与连接到三相电流源逆变器系统。

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