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公开(公告)号：US10217555B2
公开(公告)日：2019-02-26
申请号：US14972588
申请日：2015-12-17
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Xikai Sun , Wei Qian , Shaofeng Zhang , Haihui Lu , Lixiang Wei , Yuan Xiao , Jiangang Hu , Richard A. Lukaszewski
Abstract: For reducing volume requirements and magnetic flux leakage, a compact inductor includes a first planar core with a first core thickness along a first axis orthogonal to a plane of the first planar core. In addition, the inductor includes a second planar core disposed parallel to the first planar core with a second core thickness along the first axis. The inductor further includes a plurality of electrical windings disposed between and adjacent to an inside plane of the first planar core and an inside plane of the second planar core. The electrical windings may include insulated electrical wires. No magnetic teeth may be disposed between the first planar core and the second planar core. The first axis is parallel to a magnetic axis of each electrical winding.
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公开(公告)号：US20170178782A1
公开(公告)日：2017-06-22
申请号：US14972588
申请日：2015-12-17
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Xikai Sun , Wei Qian , Shaofeng Zhang , Haihui Lu , Lixiang Wei , Yuan Xiao , Jiangang Hu , Richard A. Lukaszewski
CPC classification number: H01F27/085 , H01F3/10 , H01F27/306
Abstract: For reducing volume requirements and magnetic flux leakage, a compact inductor includes a first planar core with a first core thickness along a first axis orthogonal to a plane of the first planar core. In addition, the inductor includes a second planar core disposed parallel to the first planar core with a second core thickness along the first axis. The inductor further includes a plurality of electrical windings disposed between and adjacent to an inside plane of the first planar core and an inside plane of the second planar core. The electrical windings may include insulated electrical wires. No magnetic teeth may be disposed between the first planar core and the second planar core. The first axis is parallel to a magnetic axis of each electrical winding.
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公开(公告)号：US09048755B2
公开(公告)日：2015-06-02
申请号：US13926810
申请日：2013-06-25
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Lixiang Wei , Richard A. Lukaszewski , Russel J. Kerkman
IPC: H02P7/00 , H02M7/537 , H02M7/5387 , H02P9/00 , H02P27/08
CPC classification number: H02M7/537 , H02M7/53875 , H02P9/007 , H02P27/08 , H02P29/68
Abstract: 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.
Abstract translation: 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。
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4.发明申请SYSTEM FOR DETECTION OF A GROUND FAULT IN A HIGH RESISTANCE GROUND NETWORK 审中-公开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：US20140225625A1
公开(公告)日：2014-08-14
申请号：US14252556
申请日：2014-04-14
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Lixiang Wei , Zhijun Liu , Brian Patrick Brown , David W. Kirschnik , Russ J. Kerkman , Richard A. Lukaszewski , Gary Skibinski , Carlos Daniel Rodriguez-Valdez
IPC: G01R31/02
CPC classification number: G01R31/025 , H02H3/16 , H02H7/08
Abstract: 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.
Abstract translation: 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。
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Patent Agency Ranking
公开(公告)号：US20130286702A1
公开(公告)日：2013-10-31
申请号：US13926810
申请日：2013-06-25
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Lixiang Wei , Richard A. Lukaszewski , Russel J. Kerkman
IPC: H02M7/537
CPC classification number: H02M7/537 , H02M7/53875 , H02P9/007 , H02P27/08 , H02P29/68
Abstract: 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.
Abstract translation: 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。
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6.发明申请公开(公告)号：US20140253055A1
公开(公告)日：2014-09-11
申请号：US14285497
申请日：2014-05-22
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Lixiang Wei , Russel J. Kerkman , Richard A. Lukaszewski , Haihui Lu , Zhenhuan Yuan
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US09998030B2
公开(公告)日：2018-06-12
申请号：US14285497
申请日：2014-05-22
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Lixiang Wei , Russel J. Kerkman , Richard A. Lukaszewski , Haihui Lu , Zhenhuan Yuan
Abstract: 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.
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公开(公告)号：US09612269B2
公开(公告)日：2017-04-04
申请号：US14252556
申请日：2014-04-14
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Lixiang Wei , Zhijun Liu , Brian Patrick Brown , David W. Kirschnik , Russ J. Kerkman , Richard A. Lukaszewski , Gary Skibinski , Carlos Daniel Rodriguez-Valdez
CPC classification number: G01R31/025 , H02H3/16 , H02H7/08
Abstract: 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.
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公开(公告)号：US20150009726A1
公开(公告)日：2015-01-08
申请号：US14492981
申请日：2014-09-22
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Lixiang Wei , David W. Kirschnik , Richard A. Lukaszewski , Gary L. Skibinski
CPC classification number: G01R31/025 , G01R31/42 , H02M5/458
Abstract: 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.
Abstract translation: 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。
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