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1. 发明授权

US08593150B2 Method and apparatus for detecting a location of ground faults in a motor/motor drive combination 有权
标题翻译：用于检测电动机/电动机驱动组合中的接地故障位置的方法和装置
公开(公告)号：US08593150B2
公开(公告)日：2013-11-26
申请号：US12943571
申请日：2010-11-10
申请人： Zoran V. Vrankovic , Lixiang Wei , Gary L. Skibinski , Craig R. Winterhalter
发明人： Zoran V. Vrankovic , Lixiang Wei , Gary L. Skibinski , Craig R. Winterhalter
IPC分类号： G01R31/14
CPC分类号： G01R31/025 , G01R31/343 , G01R31/42
摘要： A motor drive system provides for analysis of current flow in the DC bus to identify ground faults and their locations. Low-frequency positive polarity and negative polarity current differences indicate ground faults from the positive DC bus and negative DC bus respectively. High-frequency signals indicate ground faults in the motor windings and connecting leads.
摘要翻译：电机驱动系统用于分析直流总线中的电流，以识别接地故障及其位置。低频正极性和负极性电流差异分别表示正直流母线和负直流母线的接地故障。高频信号表示电机绕组和连接引线的接地故障。

2. 发明申请

US20120112757A1 Ground Fault Detection and Location System and Method for Motor Drives 有权
标题翻译：电机驱动器接地故障检测与定位系统及方法
公开(公告)号：US20120112757A1
公开(公告)日：2012-05-10
申请号：US12943571
申请日：2010-11-10
申请人： Zoran V. Vrankovic , Lixiang Wei , Gary L. Skibinski , Craig R. Winterhalter
发明人： Zoran V. Vrankovic , Lixiang Wei , Gary L. Skibinski , Craig R. Winterhalter
IPC分类号： G01R31/14
CPC分类号： G01R31/025 , G01R31/343 , G01R31/42
摘要： A motor drive system provides for analysis of current flow in the DC bus to identify ground faults and their locations. Low-frequency positive polarity and negative polarity current differences indicate ground faults from the positive DC bus and negative DC bus respectively. High-frequency signals indicate ground faults in the motor windings and connecting leads.
摘要翻译：电机驱动系统用于分析直流总线中的电流，以识别接地故障及其位置。低频正极性和负极性电流差异分别表示正直流母线和负直流母线的接地故障。高频信号表示电机绕组和连接引线的接地故障。

3. 发明授权

US08433528B2 Ground fault detection system and method 有权
标题翻译：接地故障检测系统及方法
公开(公告)号：US08433528B2
公开(公告)日：2013-04-30
申请号：US12642213
申请日：2009-12-18
申请人： Craig R. Winterhalter , Lixiang Wei , Zoran V. Vrankovic
发明人： Craig R. Winterhalter , Lixiang Wei , Zoran V. Vrankovic
IPC分类号： G01R31/00
CPC分类号： H02H3/332 , G01R15/183 , G01R31/025 , G01R31/42 , H02H1/0007 , H02H7/1222 , H02M5/458 , H02M2001/0009 , H02M2001/123
摘要： A ground fault detection system is provided. The ground fault detection system includes a magnetic core having first and second primary legs and a secondary leg disposed between the first and second primary legs. The ground fault detection system also includes first and second primary windings disposed around the first and second primary legs respectively and configured to introduce current in the first and second primary legs. Further, the ground fault detection system includes first and second secondary windings disposed around the first and second primary legs respectively and configured to detect a ground fault based upon a magnetic flux generated in response to the introduced current.
摘要翻译：提供接地故障检测系统。接地故障检测系统包括具有第一和第二主支腿的磁芯和设置在第一和第二主支腿之间的次级支路。接地故障检测系统还包括分别设置在第一和第二主腿周围的第一和第二初级绕组，并且构造成在第一和第二主支路中引入电流。此外，接地故障检测系统包括分别围绕第一和第二主腿布置的第一和第二次级绕组，并且被配置为基于响应于引入的电流产生的磁通量来检测接地故障。

4. 发明申请

US20110153234A1 GROUND FAULT DETECTION SYSTEM AND METHOD 有权
标题翻译：地面故障检测系统及方法
公开(公告)号：US20110153234A1
公开(公告)日：2011-06-23
申请号：US12642213
申请日：2009-12-18
申请人： Craig R. Winterhalter , Lixiang Wei , Zoran V. Vrankovic
发明人： Craig R. Winterhalter , Lixiang Wei , Zoran V. Vrankovic
IPC分类号： G01R31/00 , G01R31/14
CPC分类号： H02H3/332 , G01R15/183 , G01R31/025 , G01R31/42 , H02H1/0007 , H02H7/1222 , H02M5/458 , H02M2001/0009 , H02M2001/123
摘要： A ground fault detection system is provided. The ground fault detection system includes a magnetic core having first and second primary legs and a secondary leg disposed between the first and second primary legs. The ground fault detection system also includes first and second primary windings disposed around the first and second primary legs respectively and configured to introduce current in the first and second primary legs. Further, the ground fault detection system includes first and second secondary windings disposed around the first and second primary legs respectively and configured to detect a ground fault based upon a magnetic flux generated in response to the introduced current.
摘要翻译：提供接地故障检测系统。接地故障检测系统包括具有第一和第二主支腿的磁芯和设置在第一和第二主支腿之间的次级支路。接地故障检测系统还包括分别设置在第一和第二主腿周围的第一和第二初级绕组，并且构造成在第一和第二主支路中引入电流。此外，接地故障检测系统包括分别围绕第一和第二主腿布置的第一和第二次级绕组，并且被配置为基于响应于引入的电流产生的磁通量来检测接地故障。

5. 发明授权

US08841917B2 Ground scheme identification method 有权
标题翻译：地面方案识别方法
公开(公告)号：US08841917B2
公开(公告)日：2014-09-23
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 , G01R31/42
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。

6. 发明授权

US07602622B2 Compensator with filter for use with a three-phase drive powering a one-phase load 有权
标题翻译：带过滤器的补偿器，用于为单相负载供电的三相驱动
公开(公告)号：US07602622B2
公开(公告)日：2009-10-13
申请号：US11461697
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： H02M5/458
CPC分类号： H02M1/12
摘要： The present invention is directed to a compensator-filter 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 capacitor connected to a three-phase voltage source inverter.
摘要翻译：本发明涉及一种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补偿器滤波电路，该三相驱动系统包括连接到连接到整流器系统的三相源电压连接到连接到三相电压源逆变器的直流链路电容器。

7. 发明授权

US08243481B2 Power transformer and power converter incorporating same 有权
标题翻译：电源变压器和并联电源转换器
公开(公告)号：US08243481B2
公开(公告)日：2012-08-14
申请号：US12612544
申请日：2009-11-04
申请人： Lixiang Wei , Gary L. Skibinski
发明人： Lixiang Wei , Gary L. Skibinski
IPC分类号： H02M5/40 , H02M5/44
CPC分类号： H02M7/08 , H01F30/14 , H02M5/458
摘要： Techniques for using multiple 18-pulse rectifier circuits in parallel are described herein. In particular, each rectifier circuit may include an autotransformer having 15 inductors coupled in series, joined by 15 nodes interposed between pairs of the inductors. The inductors may be represented as a hexagon in which alternating sides of the hexagon have two and three inductors, respectively. Each rectifier circuit may also include three inputs for three-phase AC power coupled to alternating vertices of the hexagonal representation and nine outputs for AC power coupled between each node that is not a vertex of the hexagonal representation and a respective diode bridge. Outputs of the diode bridges for the rectifier circuits may be coupled to a DC bus. In addition, a means for reducing circulating current between the parallel rectifier circuits and for promoting load sharing between the parallel rectifier circuits is also provided.
摘要翻译：本文描述了并联使用多个18脉冲整流电路的技术。特别地，每个整流电路可以包括具有15个电感器的自耦变压器，该电感器串联耦合，由插入在电感器对之间的15个节点连接。电感器可以表示为六边形，其中六边形的交替侧分别具有两个和三个电感器。每个整流器电路还可以包括耦合到六边形表示的交替顶点的三相AC功率的三个输入和耦合在不是六边形表示的顶点的各个节点之间的AC功率的九个输出和相应的二极管桥。用于整流器电路的二极管桥的输出可以耦合到DC总线。此外，还提供了用于降低并联整流器电路之间的循环电流并且用于促进并联整流器电路之间的负载共享的装置。

8. 发明申请

US20110103105A1 POWER TRANSFORMER AND POWER CONVERTER INCORPORATING SAME 有权
标题翻译：电力变压器和电力转换器同时进行
公开(公告)号：US20110103105A1
公开(公告)日：2011-05-05
申请号：US12612544
申请日：2009-11-04
申请人： Lixiang Wei , Gary L. Skibinski
发明人： Lixiang Wei , Gary L. Skibinski
IPC分类号： H02M5/45 , H02M7/06
CPC分类号： H02M7/08 , H01F30/14 , H02M5/458
摘要： Embodiments of the present invention provide novel techniques for using multiple 18-pulse rectifier circuits in parallel. In particular, each rectifier circuit may include an autotransformer having 15 inductors coupled in series, joined by 15 nodes interposed between pairs of the inductors. The inductors may be represented as a hexagon in which alternating sides of the hexagon have two and three inductors, respectively. Each rectifier circuit may also include three inputs for three-phase AC power coupled to alternating vertices of the hexagonal representation and nine outputs for AC power coupled between each node that is not a vertex of the hexagonal representation and a respective diode bridge. Outputs of the diode bridges for the rectifier circuits may be coupled to a DC bus. In addition, a means for reducing circulating current between the parallel rectifier circuits and for promoting load sharing between the parallel rectifier circuits is also provided.
摘要翻译：本发明的实施例提供并行使用多个18脉冲整流电路的新技术。特别地，每个整流器电路可以包括具有15个电感器的自耦变压器，该电感器串联耦合，由插入在电感器对之间的15个节点连接。电感器可以表示为六边形，其中六边形的交替侧分别具有两个和三个电感器。每个整流电路还可以包括耦合到六边形表示的交替顶点的三相AC功率的三个输入和耦合在不是六边形表示的顶点的每个节点之间的AC功率的九个输出和相应的二极管桥。用于整流电路的二极管桥的输出可以耦合到DC总线。此外，还提供了用于降低并联整流器电路之间的循环电流并且用于促进并联整流器电路之间的负载共享的装置。

9. 发明申请

US20110103096A1 THIRTY-SIX PULSE POWER TRANSFORMER AND POWER CONVERTER INCORPORATING SAME 有权
标题翻译：三相脉冲电力变压器和电力转换器同时进行
公开(公告)号：US20110103096A1
公开(公告)日：2011-05-05
申请号：US12612562
申请日：2009-11-04
申请人： Lixiang Wei , Gary L. Skibinski
发明人： Lixiang Wei , Gary L. Skibinski
IPC分类号： H02M7/06
CPC分类号： H02M7/06 , H01F30/14
摘要： Embodiments of the present invention provide novel techniques for using multiple 18-pulse rectifier circuits in parallel. In particular, each rectifier circuit may include an autotransformer having 15 inductors coupled in series, joined by 15 nodes interposed between pairs of the inductors. The inductors may be represented as a hexagon in which alternating sides of the hexagon have two and three inductors, respectively. Each rectifier circuit may also include three inputs for three-phase AC power coupled to alternating vertices of the hexagonal representation and nine outputs for AC power coupled between each node that is not a vertex of the hexagonal representation and a respective diode bridge. Outputs of the diode bridges for the rectifier circuits may be coupled to a DC bus. In addition, a means for reducing circulating current between the parallel rectifier circuits and for promoting load sharing between the parallel rectifier circuits is also provided.
摘要翻译：本发明的实施例提供并行使用多个18脉冲整流电路的新技术。特别地，每个整流电路可以包括具有15个电感器的自耦变压器，该电感器串联耦合，由插入在电感器对之间的15个节点连接。电感器可以表示为六边形，其中六边形的交替侧分别具有两个和三个电感器。每个整流器电路还可以包括耦合到六边形表示的交替顶点的三相AC功率的三个输入和耦合在不是六边形表示的顶点的各个节点之间的AC功率的九个输出和相应的二极管桥。用于整流电路的二极管桥的输出可以耦合到DC总线。此外，还提供了用于降低并联整流器电路之间的循环电流并且用于促进并联整流器电路之间的负载共享的装置。

10. 发明授权

US07477531B2 Compensation circuit for use with a three-phase drive powering a single-phase load 失效
标题翻译：补偿电路，用于为单相负载供电的三相驱动
公开(公告)号：US07477531B2
公开(公告)日：2009-01-13
申请号：US11461688
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： H02M5/458
CPC分类号： H02M1/126 , H02M5/4585
摘要： A compensator 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 capacitor connected to a three-phase voltage source inverter that supplies three-phase power.
摘要翻译：一种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补偿电路，所述三相驱动系统包括连接到连接到连接到所述单相负载的DC链路电容器的整流器系统的三相源电压提供三相电源的三相电压源逆变器。

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