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31. 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。

32. 发明授权

US07356441B2 Junction temperature prediction method and apparatus for use in a power conversion module 有权
标题翻译：用于功率转换模块的结温预测方法和装置
公开(公告)号：US07356441B2
公开(公告)日：2008-04-08
申请号：US11238005
申请日：2005-09-28
申请人： Russel J. Kerkman , Lixiang Wei , Richard A. Lukaszewski , Brian P. Brown , Neil Gollhardt , Bruce W. Weiss
发明人： Russel J. Kerkman , Lixiang Wei , Richard A. Lukaszewski , Brian P. Brown , Neil Gollhardt , Bruce W. Weiss
IPC分类号： G06F15/00
CPC分类号： H02M7/00 , G01K7/425 , H02M1/32
摘要： A method and apparatus for predicting junction device temperature of at least a first switching device in a power conversion module that includes the first switching device and at least a second switching device, the method comprising the steps of identifying a cross thermal impedance value indicative of how the temperature of the second switching device effects the first switching device temperature an using the cross thermal impedance value to predict the temperature of the at least a first switching device.
摘要翻译：一种用于预测包括第一开关装置和至少第二开关装置的功率转换模块中的至少第一开关装置的结器件温度的方法和装置，所述方法包括以下步骤：识别表示如何第二开关装置的温度使用交叉热阻抗值来影响第一开关装置温度a，以预测至少第一开关装置的温度。

33. 发明授权

US07190143B2 Pulse width modulation (PWM) rectifier with variable switching frequency 有权
标题翻译：具有可变开关频率的脉宽调制（PWM）整流器
公开(公告)号：US07190143B2
公开(公告)日：2007-03-13
申请号：US11139216
申请日：2005-05-27
申请人： Lixiang Wei , Richard A. Lukaszewski
发明人： Lixiang Wei , Richard A. Lukaszewski
IPC分类号： G05B1/02 , H02M5/45
CPC分类号： H02M7/219
摘要： A method for controlling a device including a plurality of switching devices operated in accordance with a pulse width modulation technique includes receiving a reference voltage signal associated with a first pair of the switching devices. A switching signal is generated. The first pair of switching devices are controlled based on the reference voltage signal and the switching signal in accordance with the pulse width modulation technique. A frequency of the switching signal is varied based on the value of the reference voltage signal.
摘要翻译：一种用于控制包括根据脉宽调制技术操作的多个开关装置的装置的方法，包括接收与第一对开关装置相关联的参考电压信号。产生切换信号。基于参考电压信号和根据脉宽调制技术的开关信号来控制第一对开关器件。开关信号的频率根据参考电压信号的值而变化。

34. 发明申请

US20070030707A1 AUXILIARY CIRCUIT FOR USE WITH THREE-PHASE DRIVE WITH CURRENT SOURCE INVERTER POWERING A SINGLE-PHASE LOAD 有权
标题翻译：用于三相驱动的辅助电路与电流反相器供电单相负载
公开(公告)号：US20070030707A1
公开(公告)日：2007-02-08
申请号：US11461693
申请日：2006-08-01
申请人： Lixiang Wei , Gary Skibinski , Richard Lukaszewski
发明人： Lixiang Wei , Gary Skibinski , Richard Lukaszewski
IPC分类号： H02M1/12
CPC分类号： H02M1/126 , H02M5/4585
摘要： The present invention is directed to 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：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辅助电路，所述三相驱动系统包括连接到连接到单相负载的整流器系统的三相源电压直流扼流圈电感连接到三相电流源逆变器系统。

35. 发明申请

US20060227582A1 Rectifier for reducing current harmonics from unbalanced source 失效
公开(公告)号：US20060227582A1
公开(公告)日：2006-10-12
申请号：US11095015
申请日：2005-03-31
申请人： Lixiang Wei , Gary Skibinski , Richard Lukaszewski
发明人： Lixiang Wei , Gary Skibinski , Richard Lukaszewski
IPC分类号： H02M7/06
CPC分类号： H02M1/126 , H02M7/06
摘要： A rectifier includes a transformer, a rectifying bridge, a link capacitor, and at least a first resonance loop. The transformer is operable to receive three phase input signals having a source frequency and generate a plurality of transformer phase signals. The rectifying bridge has a number of stages corresponding to the number of transformer phase signals and is operable to generate a rectified output signal based on the transformer phase signals. The link capacitor is coupled across the rectifying bridge. The first resonance loop is coupled between the rectifying bridge and the link capacitor. The first resonance loop has a first resonance frequency corresponding to a harmonic frequency of the source frequency.

36. 发明授权

US09604543B2 Apparatus and method for automatic ground fault location determination in high resistance grounded motor drive system 有权
公开(公告)号：US09604543B2
公开(公告)日：2017-03-28
申请号：US14296502
申请日：2014-06-05
申请人： Jiangang Hu , Lixiang Wei , Zhijun Liu , Jeffrey D. McGuire
发明人： Jiangang Hu , Lixiang Wei , Zhijun Liu , Jeffrey D. McGuire
IPC分类号： G01R31/02 , G01R31/08 , H02H3/16 , B60L3/00 , H02H1/00 , H02P29/032 , H02P29/024 , H02M1/32 , G01R31/40
CPC分类号： B60L3/0069 , G01R31/025 , G01R31/08 , G01R31/086 , G01R31/40 , H02H1/0092 , H02H3/16 , H02M1/32 , H02P29/0241 , H02P29/032 , Y02T10/642
摘要： Methods an apparatus are presented for identifying ground fault locations in multi-drive systems in which individual drives perform self-diagnosis for detected faults based on an identified fault signal frequency while the system drives continue operation, and a ground fault location system identifies suspected drives and individually confirms or exonerates individual drives by selective command speed adjustment while the drives remain operational within system tolerance ranges.

37. 发明授权

US09091742B2 Fault identification techniques for high resistance grounded systems 有权
标题翻译：高电阻接地系统的故障识别技术
公开(公告)号：US09091742B2
公开(公告)日：2015-07-28
申请号：US13400537
申请日：2012-02-20
申请人： Lixiang Wei , Zhijun Liu
发明人： Lixiang Wei , Zhijun Liu
IPC分类号： G01R31/00 , G01R31/42 , G01R31/02
CPC分类号： G01R31/42 , G01R31/025
摘要： The present techniques include methods and systems for detecting a high resistive ground fault condition in an HRG system. Embodiments include systems and methods of measuring drive voltages and detecting voltage changes in the drive once the drive is in operation, particularly for drives operating at relatively low voltages and frequencies. In some embodiments, an integrator is utilized to detect peaks in the measured voltage changes. Relatively small ground currents are also measured to determine HRG faults. Moreover, in some embodiments, the detection of an HRG fault for one of several motor drives provide indication for the particular motor drive in fault.
摘要翻译：本技术包括用于检测HRG系统中的高电阻接地故障状况的方法和系统。实施例包括测量驱动电压并检测驱动器运行中的电压变化的系统和方法，特别是对于在较低电压和频率下工作的驱动器。在一些实施例中，使用积分器来检测所测量的电压变化中的峰值。还测量相对较小的接地电流以确定HRG故障。此外，在一些实施例中，几个电动机驱动器之一的HRG故障的检测为故障中的特定电机驱动器提供指示。

38. 发明申请

US20150098257A1 MULTIFUNCTION POWER CONVERTER WITH OPTION FOR INTEGRATED MAGNETICS 有权
标题翻译：多功能电力转换器与集成磁选择
公开(公告)号：US20150098257A1
公开(公告)日：2015-04-09
申请号：US14049266
申请日：2013-10-09
申请人： Lixiang Wei , Robert M. Michalski , Yogesh Patel , Bruce W. Weiss , Brian P. Brown
发明人： Lixiang Wei , Robert M. Michalski , Yogesh Patel , Bruce W. Weiss , Brian P. Brown
IPC分类号： H02M5/458
CPC分类号： H02M5/4585 , H05K7/1432
摘要： Power converter modules and parallel conversion systems are presented in which the modules are provided in a rollable enclosure having AC and DC electrical connections, and an interior including a switching circuit with switching devices individually connected between a corresponding AC node and a corresponding DC node for operation as either a rectifier or an inverter and an internal filter circuit with inductors individually connected between a corresponding AC node of the switching circuit and a corresponding AC electrical connection, with a built-in blower or fan to cool the filter circuit during operation.
摘要翻译：提出了电力转换器模块和并行转换系统，其中模块设置在具有AC和DC电连接的可卷绕的外壳中，以及包括开关电路的内部，开关电路分别连接在相应的AC节点和相应的DC节点之间用于操作作为整流器或逆变器以及具有电感器的内部滤波器电路，其单独地连接在开关电路的相应AC节点和相应的AC电连接之间，具有内置鼓风机或风扇以在操作期间冷却滤波器电路。

39. 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。

40. 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。

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