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1. 发明授权

US08736091B2 Converter lifetime improvement method for doubly fed induction generator 有权
标题翻译：双馈感应发电机转换器寿命改善方法
公开(公告)号：US08736091B2
公开(公告)日：2014-05-27
申请号：US12818895
申请日：2010-06-18
申请人： Lixiang Wei , Russel J. Kerkman , Richard A. Lukaszewski , Haihui Lu , Zhenhuan Yuan
发明人： Lixiang Wei , Russel J. Kerkman , Richard A. Lukaszewski , Haihui Lu , Zhenhuan Yuan
IPC分类号： H02P9/04 , G01B3/52
CPC分类号： H02M7/537 , G01B3/52 , G05F1/67 , H02M1/32 , H02P9/007
摘要： The present techniques include methods and systems for operating converter to maintain a lifespan of the converter. In some embodiments, the operating frequency of the converter may be increased such that stress may be reduced on the bond wires of the converter. More specifically, embodiments involve calculating the aging parameters for certain operating conditions of the converter operating in a maximum power point tracking (MPPT) mode and determining whether the MPPT operation results in aging the converter to a point which reduces the converter lifespan below a desired lifespan. If the MPPT operation reduces the converter lifespan below the desired lifespan, the frequency of the converter may be increased such that the converter may be controlled to operate at a percentage of MPPT. Thus, in some embodiments, power output may be optimized with respect to maintaining a desired lifespan of the converter.
摘要翻译：本技术包括用于操作转换器以保持转换器寿命的方法和系统。在一些实施例中，可以增加转换器的工作频率，使得可以在转换器的接合线上减小应力。更具体地，实施例涉及为以最大功率点跟踪（MPPT）模式操作的转换器的某些操作条件计算老化参数，并且确定MPPT操作是否导致转换器老化到将转换器寿命降低到期望寿命以下的点。如果MPPT操作将转换器寿命降低到期望的寿命以下，则可以增加转换器的频率，使得可以将转换器控制为以MPPT的百分比进行操作。因此，在一些实施例中，可以相对于维持转换器的期望寿命来优化功率输出。

2. 发明授权

US08432052B2 Wind power converter system with grid side reactive power control 有权
标题翻译：具有电网侧无功功率控制的风力发电系统
公开(公告)号：US08432052B2
公开(公告)日：2013-04-30
申请号：US12789285
申请日：2010-05-27
申请人： Haihui Lu , Lixiang Wei , Richard A. Lukaszewski , Russel J. Kerkman , Zhenhuan Yuan
发明人： Haihui Lu , Lixiang Wei , Richard A. Lukaszewski , Russel J. Kerkman , Zhenhuan Yuan
IPC分类号： H02P9/04 , G05D3/12
CPC分类号： H02P9/105 , H02J3/386 , H02J3/50 , H02M5/4585 , H02P9/007 , H02P2101/15
摘要： The present techniques include methods and systems for operating a wind power system to maintain a lifespan of the rotor side converter. In some embodiments, the current of the rotor side converter may be minimized to reduce the stress and/or junction temperature variation in the switching transistors and bond wires of the converter. More specifically, embodiments involve using a minimal current in the rotor side converter based on the rotor side and grid side reactive powers. If the grid side reactive power is greater than a maximum grid side reactive power, the grid side reactive power may be reduced. Further, if the total reactive power does not meet the grid reactive power requirements, the minimal current in the rotor side converter may be adjusted such that the system may sufficiently power the grid.
摘要翻译：本技术包括用于操作风力发电系统以维持转子侧转换器的寿命的方法和系统。在一些实施例中，转子侧转换器的电流可以最小化，以减小转换器的开关晶体管和接合线中的应力和/或结温变化。更具体地，实施例涉及在转子侧转换器中基于转子侧和电网侧无功功率使用最小电流。如果电网侧无功功率大于最大电网侧的无功功率，则电网侧的无功功率可能会降低。此外，如果总无功功率不满足电网无功功率要求，则可以调节转子侧转换器中的最小电流，使得系统可以对电网充分供电。

3. 发明申请

US20110286244A1 ADJUSTABLE SPEED DRIVE LIFETIME IMPROVEMENT METHOD 有权
标题翻译：可调节速度驱动器生命周期改进方法
公开(公告)号：US20110286244A1
公开(公告)日：2011-11-24
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： H02M3/335
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。

4. 发明申请

US20080049468A1 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：US20080049468A1
公开(公告)日：2008-02-28
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
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。

5. 发明授权

US07106025B1 Cancellation of dead time effects for reducing common mode voltages 有权
标题翻译：取消死区时间效应以降低共模电压
公开(公告)号：US07106025B1
公开(公告)日：2006-09-12
申请号：US11068196
申请日：2005-02-28
申请人： Qiang Yin , Russel J. Kerkman , Richard A. Lukaszewski
发明人： Qiang Yin , Russel J. Kerkman , Richard A. Lukaszewski
IPC分类号： H02P5/28 , H02M1/12
CPC分类号： H02M7/53873 , H02M2001/385 , H02P27/08
摘要： Methods and apparatus for canceling dead time effects in the form of common mode voltages produced by a three-phase power conversion device in a rectifier/inverter variable frequency drive (VFD) system includes limiting the voltage difference between phase voltages at certain switching transition times to an amount δ, that is a function of the dead time that is specified for the switches and delaying gating signals to the switches to remove unexpected pulses produced by common mode voltages.
摘要翻译：在整流/变频变频驱动（VFD）系统中，通过三相电力变换装置产生的共模电压形式的取消死区时间效应的方法和装置包括将某些开关转换时间的相电压之间的电压差限制到数量三角形，这是为开关指定的死区时间的函数，并延迟门控信号给开关以消除由共模电压产生的意外脉冲。

6. 发明授权

US08373406B2 Electrical power quality test circuitry and method 失效
标题翻译：电力质量检测电路及方法
公开(公告)号：US08373406B2
公开(公告)日：2013-02-12
申请号：US12512205
申请日：2009-07-30
申请人： Ahmed Mohamed Sayed Ahmed , Gary L. Skibinski , Richard A. Lukaszewski
发明人： Ahmed Mohamed Sayed Ahmed , Gary L. Skibinski , Richard A. Lukaszewski
IPC分类号： G01R19/22
CPC分类号： G01R31/2839
摘要： Electrical power quality test circuitry for testing response of an electrical device to input power disturbances is provided. The test circuitry includes a power structure having a rectifier configured to convert incoming AC voltage to DC voltage on a DC bus, and a power inverter configured to convert DC voltage from the bus to three-phase output AC voltage applied to the electrical device. The test circuitry also includes a control circuit configured to apply control signals to at least the power inverter to emulate at least one of a change in the amplitude of at least one phase of the output AC voltage at least one phase angle of at least one phase of the output AC voltage, and a frequency change for all phases of the output AC voltage.
摘要翻译：提供了用于测试电气设备对输入功率干扰的响应的电力质量测试电路。测试电路包括具有整流器的功率结构，其被配置为将输入的AC电压转换成DC总线上的DC电压;以及功率反相器，被配置为将来自总线的DC电压转换为施加到电气设备的三相输出AC电压。测试电路还包括控制电路，该控制电路被配置为将控制信号施加到至少功率逆变器，以模拟输出AC电压的至少一相的振幅的变化中的至少一个，至少一相的至少一个相位的输出交流电压，以及输出交流电压的所有相位的频率变化。

7. 发明申请

US20120235607A1 DC BUS BOOST METHOD AND SYSTEM FOR REGENERATIVE BRAKE 有权
标题翻译：直流母线增压方法及再生制动系统
公开(公告)号：US20120235607A1
公开(公告)日：2012-09-20
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： H02P3/14
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，而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。

8. 发明授权

US08188693B2 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：US08188693B2
公开(公告)日：2012-05-29
申请号：US12612336
申请日：2009-11-04
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，而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。

9. 发明授权

US07830036B2 Power electronic module pre-charge system and method 有权
标题翻译：电力电子模块预充系统及方法
公开(公告)号：US07830036B2
公开(公告)日：2010-11-09
申请号：US12241617
申请日：2008-09-30
申请人： Lixiang Wei , Richard A Lukaszewski , Ajith H Wijenayake , Paul Krause , Michael Loth
发明人： Lixiang Wei , Richard A Lukaszewski , Ajith H Wijenayake , Paul Krause , Michael Loth
IPC分类号： H02J1/14
CPC分类号： H02M5/458 , H02M5/4585 , Y10T307/406
摘要： A power electronics device with an improved pre-charge circuit configuration is provided. More specifically, the input of the motor drive module may accept an AC or DC source voltage. In this way, the pre-charge circuit of the motor drive module may be utilized whether the motor drive is coupled to an AC or DC source.
摘要翻译：提供了具有改进的预充电电路配置的电力电子设备。更具体地，马达驱动模块的输入可以接受AC或DC源电压。以这种方式，马达驱动模块的预充电电路可以用于电动机驱动器是否耦合到AC或DC源。

10. 发明申请

US20100080024A1 POWER ELECTRONIC MODULE IGBT PROTECTION METHOD AND SYSTEM 有权
标题翻译：电力电子模块IGBT保护方法与系统
公开(公告)号：US20100080024A1
公开(公告)日：2010-04-01
申请号：US12241766
申请日：2008-09-30
申请人： Lixiang Wei , Masahiro Tsuyoshi , Richard A. Lukaszewski
发明人： Lixiang Wei , Masahiro Tsuyoshi , Richard A. Lukaszewski
IPC分类号： H02M7/537
CPC分类号： H02M1/32 , H03K17/0828 , H03K2017/0806
摘要： A power electronics device with an improved IGBT protection mechanism is provided. More specifically, systems and methods are provided for reducing the switching frequency of an inverter module based on the junction temperature variation of the IGBT.
摘要翻译：提供了一种具有改进的IGBT保护机构的电力电子设备。更具体地，提供了用于基于IGBT的结温变化来降低逆变器模块的开关频率的系统和方法。

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