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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

US20110309875A1 CONVERTER LIFETIME IMPROVEMENT METHOD FOR DOUBLY FED INDUCTION GENERATOR 有权
标题翻译：双极电感诱导发生器的转换器寿命改进方法
公开(公告)号：US20110309875A1
公开(公告)日：2011-12-22
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： H03K17/60
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。

4. 发明申请

US20110295437A1 WIND POWER CONVERTER SYSTEM WITH GRID SIDE REACTIVE POWER CONTROL 有权
标题翻译：风力电力转换器系统，具有三相无功功率控制
公开(公告)号：US20110295437A1
公开(公告)日：2011-12-01
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 , G06F1/28
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。

5. 发明授权

US09331487B2 Method and apparatus for islanding detection for grid tie converters 有权
标题翻译：并网转换器孤岛检测方法及装置
公开(公告)号：US09331487B2
公开(公告)日：2016-05-03
申请号：US13827630
申请日：2013-03-14
申请人： Zhenhuan Yuan , Shaofeng Zhang , Haihui Lu , Lixiang Wei , Russel J. Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed , Robert J. Breitzmann
发明人： Zhenhuan Yuan , Shaofeng Zhang , Haihui Lu , Lixiang Wei , Russel J. Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed , Robert J. Breitzmann
IPC分类号： H02J3/38
CPC分类号： H02J3/382 , H02J3/386 , H02J2003/388 , Y02E10/763 , Y10T307/642
摘要： Methods and apparatus are presented for unintentional islanding detection for grid tie converters in which the phase angle disturbance is introduced by modification of grid side converter switching control signals and a mismatch of reactive power between generation and the grid load is formed upon the occurrence of unintentional islanding, where the applied phase disturbance is determined according to two pre-defined curves to form an equivalent positive feedback at different frequencies to prevent the converter from forming an island at a new stable frequency after the grid is disconnected.
摘要翻译：给出了并网转换器的无意孤立检测方法和装置，其中通过修改电网侧转换器开关控制信号引入相位角扰动，并且在无意孤岛发生时形成发电与电网负载之间的无功功率失配其中施加的相位干扰根据两个预定义曲线确定，以在不同频率处形成等效的正反馈，以防止转换器在网格断开之后以新的稳定频率形成岛。

6. 发明申请

US20140265596A1 METHOD AND APPARATUS FOR ISLANDING DETECTION FOR GRID TIE CONVERTERS 有权
标题翻译：用于网格转换器的岛屿检测的方法和装置
公开(公告)号：US20140265596A1
公开(公告)日：2014-09-18
申请号：US13827630
申请日：2013-03-14
申请人： Zhenhuan YUAN , Shaofeng ZHANG , Haihui LU , Lixiang WEI , Russel J. Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed , Robert J. Breitzmann
发明人： Zhenhuan YUAN , Shaofeng ZHANG , Haihui LU , Lixiang WEI , Russel J. Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed , Robert J. Breitzmann
IPC分类号： H02J3/38
CPC分类号： H02J3/382 , H02J3/386 , H02J2003/388 , Y02E10/763 , Y10T307/642
摘要： Methods and apparatus are presented for unintentional islanding detection for grid tie converters in which the phase angle disturbance is introduced by modification of grid side converter switching control signals and a mismatch of reactive power between generation and the grid load is formed upon the occurrence of unintentional islanding, where the applied phase disturbance is determined according to two pre-defined curves to form an equivalent positive feedback at different frequencies to prevent the converter from forming an island at a new stable frequency after the grid is disconnected.
摘要翻译：给出了并网转换器的无意孤立检测方法和装置，其中通过修改电网侧转换器开关控制信号引入相位角扰动，并且在无意孤岛发生时形成发电与电网负载之间的无功功率失配其中施加的相位干扰根据两个预定义曲线确定，以在不同频率处形成等效的正反馈，以防止转换器在网格断开之后以新的稳定频率形成岛。

7. 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。

8. 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。

9. 发明申请

US20080140351A1 JUNCTION TEMPERATURE PREDICTION METHOD AND APPARATUS FOR USE IN A POWER CONVERSION MODULE 有权
标题翻译：功率转换模块中使用的连接温度预测方法和装置
公开(公告)号：US20080140351A1
公开(公告)日：2008-06-12
申请号：US12033940
申请日：2008-02-20
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 a plurality of switching devices, the method comprising the steps of, during switching activity, identifying at least one operating characteristic of the first switching device and solving an equation that uses the identified operating characteristic to predict the temperature of the first switching device where the equation solved is a function of the location of the first switching device with respect to the other switching devices in the plurality.
摘要翻译：一种用于预测包括多个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：在开关活动期间，识别第一开关的至少一个工作特性并且解决使用所识别的工作特性来预测第一开关装置的温度的方程式，其中求解的方程是第一开关装置相对于多个开关装置中的其它开关装置的位置的函数。

10. 发明申请

US20080140350A1 JUNCTION TEMPERATURE PREDICTION METHOD AND APPARATUS FOR USE IN A POWER CONVERSION MODULE 有权
标题翻译：功率转换模块中使用的连接温度预测方法和装置
公开(公告)号：US20080140350A1
公开(公告)日：2008-06-12
申请号：US12033936
申请日：2008-02-20
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 and 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器件的温度影响第一开关器件温度，并且使用交叉热阻抗值来预测至少第一开关器件的温度。

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