-
公开(公告)号：US09973103B1
公开(公告)日：2018-05-15
申请号：US15408786
申请日：2017-01-18
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Prathamesh R. Vadhavkar , Brian J. Seibel , Russel J. Kerkman
CPC classification number: H02M5/458 , G05B19/042 , G05B2219/41432 , H02M1/084 , H02M1/12 , H02M1/126 , H02M1/32 , H02M1/42 , H02M1/4233 , H02M5/4585 , H02M2001/0009 , H02P27/08 , H02P29/032
Abstract: A power conversion system can be implemented to actively control a load while compensating for reactive power which may be sourced or consumed by an input filter circuit. In one aspect, the power conversion system can receive externally supplied multi-phase AC electric power, such as three-phase power from a power grid, and use a converter circuit to generate a DC bus. The power conversion system can then use an inverter circuit to generate multi-phase AC electric power from the DC bus for driving the load with adjustable frequencies and/or amplitudes as desired. The input filter circuit can be coupled to the converter circuit to filter out harmonics resulting from switching of the converter circuit. The power conversion system can receive feedback signals which may be used to determine reactive power sourced or consumed by the filter circuit, and can adjust the converter circuit to compensate for such reactive power.
-
公开(公告)号：US09584043B2
公开(公告)日：2017-02-28
申请号：US14634737
申请日：2015-02-28
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Zhendong Zhang , Takayoshi Matsuo , David Leggate , Timothy M. Rowan , Russel J. Kerkman , Bing Li
IPC: H02M7/48 , H02M7/5387 , H02M1/00
CPC classification number: H02M7/48 , H02M7/53871 , H02M7/5395 , H02M2001/0009
Abstract: Methods and apparatus are presented for sampling low side inverter phase currents, in which current sampling is selectively delayed in a given PWM cycle by a non-zero sampling delay time value from a nominal sample time if the middle pulse width value is less than a non-zero first threshold to facilitate adequate signal settling for accurate current measurement, and if a middle total continuous on-time near the end of the given PWM cycle is less than a non-zero second threshold, the middle total continuous on-time is selectively extended by adding a non-zero adjustment offset time value to a middle pulse width value for a next PWM cycle.
Abstract translation: 提出了用于采样低侧逆变器相电流的方法和装置，其中如果中间脉冲宽度值小于非正常采样时间，则在给定PWM周期中电流采样被选择性地从标称采样时间的非零采样延迟时间值延迟 为了促进适当的信号稳定以便精确的电流测量，并且如果在给定的PWM周期结束附近的中间总连续导通时间小于非零第二阈值，则中间的总连续导通时间是选择性的 通过向下一个PWM周期的中间脉冲宽度值添加非零调整偏移时间值来扩展。
-
3.发明申请PHASE LOCK LOOP WITH CASCADE TRACKING FILTERS FOR SYNCHRONIZING AN ELECTRIC GRID 有权用于同步电网的CASCADE跟踪滤波器的相位锁定环公开(公告)号：US20150381187A1
公开(公告)日：2015-12-31
申请号：US14319469
申请日：2014-06-30
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Ahmed Mohamed Sayed Ahmed , Russel J. Kerkman , Brian J. Seibel
Abstract: Present embodiments relate to a method for synchronizing an electric grid. The method includes receiving a phase voltage of the electric grid. The method further includes determining one or more disturbance frequencies in the phase voltage via a plurality of sequential tracking filters, wherein each of the plurality of tracking filters corresponds to a harmonic of the received phase voltage. The method further includes removing the disturbance frequencies components sequentially to produce a minimally distorted frequency, and performing a PLL operation on the clean frequency to determine a phase angle of the frequency.
Abstract translation: 本实施例涉及一种同步电网的方法。 该方法包括接收电网的相电压。 该方法还包括经由多个顺序跟踪滤波器来确定相电压中的一个或多个扰动频率，其中多个跟踪滤波器中的每一个对应于接收相电压的谐波。 该方法还包括顺序地去除干扰频率分量以产生最小失真的频率，以及对干净频率执行PLL操作以确定频率的相位角。
-
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。
-
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。
-
Patent Agency Ranking
公开(公告)号：US20130124125A1
公开(公告)日：2013-05-16
申请号：US13735524
申请日：2013-01-07
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Brian J. Seibel , Russel J. Kerkman , Carlos Daniel Rodriquez-Valdez
IPC: G06F17/00
Abstract: Methods and systems for tracking an electronic signal corresponding to an operating frequency of an electronic component are provided. A method may include sampling the signal to determine previous and current time samples of the signal. A frequency of interest in the signal may also be pre-warped to decrease adverse warping effects resulting from processing signals having relatively higher operating frequencies. The previous and current time samples of the signals, along with the pre-warped frequency of interest, may be input into a digital tracking filter. The digital tracking filter may be configured to execute one or more algorithms on the previous and current time samples and the pre-warped frequency of interest to estimate a current operating frequency.
Abstract translation: 提供了用于跟踪对应于电子部件的工作频率的电子信号的方法和系统。 方法可以包括对信号进行采样以确定信号的先前和当前时间采样。 信号中感兴趣的频率也可以被预先翘曲，以减少由具有相对更高的工作频率的信号产生的不利的翘曲效应。 信号的先前和当前时间样本以及感兴趣的预翘曲频率可以被输入到数字跟踪滤波器中。 数字跟踪滤波器可以被配置为对先前和当前时间采样和感兴趣的预翘曲频率执行一个或多个算法来估计当前工作频率。
-
7.发明申请DOUBLE FED INDUCTION GENERATOR (DFIG) CONVERTER AND METHOD FOR IMPROVED GRID FAULT RIDETHROUGH 有权双电源感应发电机（DFIG）转换器和改进的电网故障的方法RIDETHROUGH公开(公告)号：US20150229257A1
公开(公告)日：2015-08-13
申请号：US14696648
申请日：2015-04-27
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Haihui Lu , Zhenhuan Yuan , Lixiang Wei , Russel J. Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed
IPC: H02P9/00
CPC classification number: H02P9/006 , F03D7/0224 , F03D7/0284 , F03D7/0288 , F03D7/04 , F03D9/255 , H02H7/06 , H02H7/12 , H02H9/002 , H02J3/386 , H02J2003/001 , H02P9/007 , H02P9/102 , H02P9/48 , H02P2101/15 , Y02E10/723 , Y02E10/763
Abstract: A double fed induction generator (DFIG) converter, methods and computer readable mediums are presented in which rotor side current spikes are attenuated by selectively activating at least one series damping circuit to conduct current through a series damping circuit resistance coupled in series between one or more DFIG rotor leads and a grid side converter in response to a grid fault occurrence or a grid fault clearance, and selectively bypassing the series damping circuit resistance after activating the series damping circuit.
Abstract translation: 提出了一种双馈感应发电机（DFIG）转换器，方法和计算机可读介质，其中通过选择性地激活至少一个串联阻尼电路来使转子侧电流尖峰衰减，以将电流传导通过串联耦合在一个或多个 DFIG转子引线和电网侧转换器响应于电网故障发生或电网故障间隙，并且在启动串联阻尼电路之后选择性地旁路串联阻尼电路电阻。
-
8.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。
-
公开(公告)号：US08825421B2
公开(公告)日：2014-09-02
申请号：US13735524
申请日：2013-01-07
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Brian J. Seibel , Russel J. Kerkman , Carlos Daniel Rodriquez-Valdez
Abstract: Methods and systems for tracking an electronic signal corresponding to an operating frequency of an electronic component are provided. A method may include sampling the signal to determine previous and current time samples of the signal. A frequency of interest in the signal may also be pre-warped to decrease adverse warping effects resulting from processing signals having relatively higher operating frequencies. The previous and current time samples of the signals, along with the pre-warped frequency of interest, may be input into a digital tracking filter. The digital tracking filter may be configured to execute one or more algorithms on the previous and current time samples and the pre-warped frequency of interest to estimate a current operating frequency.
Abstract translation: 提供了用于跟踪对应于电子部件的工作频率的电子信号的方法和系统。 方法可以包括对信号进行采样以确定信号的先前和当前时间采样。 信号中感兴趣的频率也可以被预先翘曲，以减少由具有相对更高的工作频率的信号产生的不利的翘曲效应。 信号的先前和当前时间样本以及感兴趣的预翘曲频率可以被输入到数字跟踪滤波器中。 数字跟踪滤波器可以被配置为对先前和当前时间采样和感兴趣的预翘曲频率执行一个或多个算法来估计当前工作频率。
-
公开(公告)号：US10527661B2
公开(公告)日：2020-01-07
申请号：US15891272
申请日：2018-02-07
Applicant: Rockwell Automation Technologies, Inc.
Inventor： David Leggate , Russel J. Kerkman , Brian J. Seibel
IPC: G01R27/08 , H03K7/08 , G06F1/025 , H02M7/5387 , G01R21/127
Abstract: For calculating load resistance, a pulse generation module drives a pulse width modulation (PWM) inverter in response to a control voltage. The PWM inverter includes a U phase pole, a V phase pole, and a W phase pole. Each U, V, and W phase pole includes an upper pole device and a lower pole device. The PWM inverter turns off the U phase pole, turns on the W upper pole device, turns off the W lower pole device, and applies the control voltage to the V upper pole device and the V lower pole device. A forward drop correction module corrects the control voltage based on a feedforward compensation voltage determined from a forward voltage drop. A load resistance module calculates a load resistance for a load based on an average control voltage, an average bus voltage, and an average load feedback current.
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.016 seconds)
