公开(公告)号：US07145302B2

公开(公告)日：2006-12-05

申请号：US10818401

申请日：2004-04-06

申请人： Amit Raja Sanglikar ,  Herman Lucas Norbert Wiegman ,  Charles Michael Stephens ,  Sunit Kumar Saxena ,  Pradeep Vijayan ,  Ajit Wasant Kane

发明人： Amit Raja Sanglikar ,  Herman Lucas Norbert Wiegman ,  Charles Michael Stephens ,  Sunit Kumar Saxena ,  Pradeep Vijayan ,  Ajit Wasant Kane

IPC分类号： H02P25/12 ,  H02K13/00

CPC分类号： H02P6/14 ,  H02P6/10

摘要： A method for driving a DC motor includes generating a first voltage pulse, based on a pre-determined speed input and duty cycle, and configured to generate motor current of reference current value sufficient to achieve a desired speed according to the speed input. Subsequent pulses of the voltage are generated to maintain the current substantially within a range of the reference current. Another method includes sensing and comparing motor current to reference current value and generating an error signal therebetween, which is integrated over time to generate an integrated current error, which is compared with a reference pulse. Thereafter generating applied voltage pulses configured to: switch at each instance of the integrated current error exceeding or becoming less than the reference pulse value; generate a motor current sufficient to achieve a desired speed according to a pre-determined speed input; and having substantially zero average variation from the reference current.

摘要翻译： 一种用于驱动DC电动机的方法包括：基于预定的速度输入和占空比产生第一电压脉冲，并且被配置为产生足以根据速度输入获得期望速度的参考电流值的电动机电流。 产生电压的后续脉冲，以使电流基本上保持在参考电流的范围内。 另一种方法包括感测并比较电动机电流与参考电流值并在其间产生误差信号，其随时间积分以产生与参考脉冲进行比较的积分电流误差。 然后产生施加的电压脉冲，其被配置为：在每一个集成电流误差的情况下切换超过或变得小于参考脉冲值; 产生足以根据预定速度输入达到所需速度的电动机电流; 并且具有与参考电流基本上零的平均变化。

公开(公告)号：US20090168277A1

公开(公告)日：2009-07-02

申请号：US11965888

申请日：2007-12-28

申请人： Sriram Changali ,  Vijaysai Prasad ,  Cecil Rivers,, JR. ,  Pradeep Vijayan

发明人： Sriram Changali ,  Vijaysai Prasad ,  Cecil Rivers,, JR. ,  Pradeep Vijayan

IPC分类号： H02H3/00

CPC分类号： H02H1/0015 ,  H02H1/0092

摘要： A circuit interrupter for interrupting alternating current electrical signal on a line conductor of a circuit feeding a load, including: an electrical contact in operatively connected in series with the line conductor; a trip mechanism for selectively opening the electrical contact when activated; a current sensor connected in series with the line conductor for obtaining a sample alternating current electrical signal from the circuit feeding the load; a microprocessor in electrical communication with the trip mechanism and comprising a series arc fault detection program resident thereon; the series arc detection program comprising a discrete wavelet transform for determining the presence of a series arc fault current in the circuit feeding the load; wherein, when the discrete wavelet transform determines the presence of a series arc fault, the microprocessors signals the trip mechanism to activate and open the electrical contact in operatively connected in series with the line conductor.

摘要翻译： 一种用于中断馈电负载的电路的线路导体上的交流电信号的电路断路器，包括：与所述线路导体串联操作地连接的电触点; 用于当激活时选择性地打开电触点的跳闸机构; 与线路导体串联连接的电流传感器，用于从馈电负载的电路得到样品交流电信号; 与所述跳闸机构电通信并包括驻留在其上的串联故障检测程序的微处理器; 所述串联电弧检测程序包括用于确定在馈送负载的电路中存在串联电弧故障电流的离散小波变换; 其中，当所述离散小波变换确定串联电弧故障的存在时，所述微处理器向所述跳闸机构发出信号以激活并打开与所述线路导体串联操作地连接的所述电触头。

公开(公告)号：US07463465B2

公开(公告)日：2008-12-09

申请号：US11646733

申请日：2006-12-28

申请人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

发明人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

IPC分类号： H02H3/16

CPC分类号： H02H1/0015

摘要： A circuit interrupter for interrupting current on a line conductor is provided. The circuit interrupter includes separable contacts, a trip mechanism, a bimetal, a microprocessor, a series arc detection sequence, a low-pass filter circuit, and a high-pass filter circuit. The trip mechanism selectively opens the separable contacts when activated. The series arc detection sequence is resident on the microprocessor and includes a plurality of series fault detection algorithms. The low-pass filter circuit provides a low-pass signal to the series arc detection sequence. The high-pass filter circuit provides a high-pass signal to the series arc detection sequence. The sequence selects a particular algorithm from the plurality of algorithms based on the low-pass signal. The sequence calculates a plurality of statistical features from the high-pass signal and sends an output signal to activate the trip mechanism based on a comparison of the plurality of statistical features to the particular algorithm.

摘要翻译： 提供了用于中断线路导体上的电流的断路器。 电路断路器包括可分离触点，跳闸机构，双金属，微处理器，串联电弧检测序列，低通滤波器电路和高通滤波器电路。 跳闸机构在激活时选择性地打开可分离触点。 串联电弧检测序列驻留在微处理器上，包括多个串联故障检测算法。 低通滤波器电路为串联电弧检测序列提供低通信号。 高通滤波电路为串联电弧检测序列提供高通信号。 该序列基于低通信号从多个算法中选择特定算法。 该序列从高通信号计算多个统计特征，并且基于多个统计特征与特定算法的比较来发送输出信号以激活跳闸机制。

公开(公告)号：US20140152250A1

公开(公告)日：2014-06-05

申请号：US14088955

申请日：2013-11-25

申请人： Pradeep Vijayan ,  Shahil Shah

发明人： Pradeep Vijayan ,  Shahil Shah

IPC分类号： H02M3/335 ,  H01F38/14 ,  H02J7/02

CPC分类号： H02M3/3353 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40

摘要： A power conversion system including a power source configured to provide input power is disclosed. The power conversion system also includes a first power converter comprising switches configured to convert the input power to an intermediate converted power. The power conversion system further includes a controller configured to control the switches based on an asymmetrical voltage cancellation mode wherein the controller is configured to operate the first power converter at a fixed operating frequency, maintain a zero voltage switching mode and control a duty cycle of the switches. The power conversion system also includes a contactless power transfer system configured to transmit the intermediate converted power to a load wherein the load is coupled to a second power converter that converts the intermediate converted power to an output power wherein an output voltage of the output power is controlled by the controller based on the asymmetrical voltage cancellation mode.

摘要翻译： 公开了一种包括被配置为提供输入功率的电源的电力转换系统。 功率转换系统还包括第一功率转换器，其包括被配置为将输入功率转换为中间转换功率的开关。 电力转换系统还包括控制器，其被配置为基于非对称电压消除模式来控制开关，其中所述控制器被配置为以固定的工作频率操作所述第一功率转换器，保持零电压开关模式并且控制所述第一功率转换器的占空比 开关。 电力转换系统还包括非接触电力传输系统，其被配置为将中间转换功率传送到负载，其中负载耦合到第二功率转换器，其将中间转换功率转换成输出功率，其中输出功率的输出电压为 由控制器基于非对称电压消除模式控制。

公开(公告)号：US20090059449A1

公开(公告)日：2009-03-05

申请号：US12290246

申请日：2008-10-29

申请人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

发明人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

IPC分类号： H02H3/00

CPC分类号： H02H1/0015

摘要： A circuit interrupter for interrupting current on a line conductor is provided. The circuit interrupter includes separable contacts, a trip mechanism, a bimetal, a microprocessor, a series arc detection sequence, a low-pass filter circuit, and a high-pass filter circuit. The trip mechanism selectively opens the separable contacts when activated. The series arc detection sequence is resident on the microprocessor and includes a plurality of series fault detection algorithms. The low-pass filter circuit provides a low-pass signal to the series arc detection sequence. The high-pass filter circuit provides a high-pass signal to the series arc detection sequence. The sequence selects a particular algorithm from the plurality of algorithms based on the low-pass signal. The sequence calculates a plurality of statistical features from the high-pass signal and sends an output signal to activate the trip mechanism based on a comparison of the plurality of statistical features to the particular algorithm.

摘要翻译： 提供了用于中断线路导体上的电流的断路器。 电路断路器包括可分离触点，跳闸机构，双金属，微处理器，串联电弧检测序列，低通滤波器电路和高通滤波器电路。 跳闸机构在激活时选择性地打开可分离触点。 串联电弧检测序列驻留在微处理器上，包括多个串联故障检测算法。 低通滤波器电路为串联电弧检测序列提供低通信号。 高通滤波电路为串联电弧检测序列提供高通信号。 该序列基于低通信号从多个算法中选择特定的算法。 该序列从高通信号计算多个统计特征，并且基于多个统计特征与特定算法的比较来发送输出信号以激活跳闸机制。

公开(公告)号：US07195211B2

公开(公告)日：2007-03-27

申请号：US10881959

申请日：2004-06-29

申请人： Mallikarjun Shivaraya Kande ,  Vidyadhar Kottisa ,  David Michael Davenport ,  Pradeep Vijayan ,  Kuna Venkat Satya Rama Kishore ,  Kunal Ravindra Goray ,  Raju Mogaveera ,  Ramasamy Anbarasu

发明人： Mallikarjun Shivaraya Kande ,  Vidyadhar Kottisa ,  David Michael Davenport ,  Pradeep Vijayan ,  Kuna Venkat Satya Rama Kishore ,  Kunal Ravindra Goray ,  Raju Mogaveera ,  Ramasamy Anbarasu

IPC分类号： B61L29/00

CPC分类号： B61L29/16

摘要： An electronically controlled grade crossing gate system and method. The system includes a gate arm, a gate arm moving assembly, a position sensor assembly and a controller. The gate arm moving assembly is configured to move the gate arm and the position sensor assembly is configured to sense a position of the gate arm. The position sensor assembly is a non-contact position sensor assembly. The controller is coupled to the gate arm moving assembly and the position sensor assembly and it is configured to receive an incoming command related to the gate arm. The controller activates the gate arm moving assembly in response to the incoming command and communicates with the position sensor assembly to monitor the position of the gate arm.

摘要翻译： 电子控制级交叉门系统及方法。 该系统包括门臂，门臂移动组件，位置传感器组件和控制器。 门臂移动组件被配置为移动门臂，并且位置传感器组件构造成感测门臂的位置。 位置传感器组件是非接触位置传感器组件。 控制器耦合到门臂移动组件和位置传感器组件，并且其被配置为接收与门臂相关的输入命令。 控制器响应输入命令启动门臂移动组件，并与位置传感器组件通信以监视门臂的位置。

公开(公告)号：US20050218849A1

公开(公告)日：2005-10-06

申请号：US10818401

申请日：2004-04-06

申请人： Amit Sanglikar ,  Herman Wiegman ,  Charles Stephens ,  Sunit Saxena ,  Pradeep Vijayan ,  Ajit Kane

发明人： Amit Sanglikar ,  Herman Wiegman ,  Charles Stephens ,  Sunit Saxena ,  Pradeep Vijayan ,  Ajit Kane

IPC分类号： H02P6/10 ,  H02P6/14 ,  H02P5/06

CPC分类号： H02P6/14 ,  H02P6/10

摘要： A method for driving a DC motor includes generating a first voltage pulse, based on a pre-determined speed input and duty cycle, and configured to generate motor current of reference current value sufficient to achieve a desired speed according to the speed input. Subsequent pulses of the voltage are generated to maintain the current substantially within a range of the reference current. Another method includes sensing and comparing motor current to reference current value and generating an error signal therebetween, which is integrated over time to generate an integrated current error, which is compared with a reference pulse. Thereafter generating applied voltage pulses configured to: switch at each instance of the integrated current error exceeding or becoming less than the reference pulse value; generate a motor current sufficient to achieve a desired speed according to a pre-determined speed input; and having substantially zero average variation from the reference current.

摘要翻译： 一种用于驱动DC电动机的方法包括：基于预定的速度输入和占空比产生第一电压脉冲，并且被配置为产生足以根据速度输入获得期望速度的参考电流值的电动机电流。 产生电压的后续脉冲，以使电流基本上保持在参考电流的范围内。 另一种方法包括感测并比较电动机电流与参考电流值并在其间产生误差信号，其随时间积分以产生与参考脉冲进行比较的积分电流误差。 然后产生施加的电压脉冲，其被配置为：在每一个集成电流误差的情况下切换超过或变得小于参考脉冲值; 产生足以根据预定速度输入达到所需速度的电动机电流; 并且具有与参考电流基本上零的平均变化。

公开(公告)号：US20050135794A1

公开(公告)日：2005-06-23

申请号：US10743199

申请日：2003-12-22

申请人： Pradeep Vijayan ,  Amit Sanglikar ,  Ajit Kane

发明人： Pradeep Vijayan ,  Amit Sanglikar ,  Ajit Kane

IPC分类号： H02P5/00 ,  H02P6/14

CPC分类号： H02P6/15

摘要： A method for reducing negative torque in a brushless single phase DC motor, the method includes initiating the motor in a normal mode of operation and activating an ON time control to cut off a voltage supply to the motor. The ON time control is applied after a predetermined time delay, the delay being defined by the motor parameters.

摘要翻译： 一种用于减小无刷单相直流电动机中的负转矩的方法，所述方法包括以正常操作模式起动电动机，并且启动接通时间控制以切断对电动机的电压供应。 在预定时间延迟之后施加ON时间控制，延迟由电动机参数限定。

公开(公告)号：US08624431B2

公开(公告)日：2014-01-07

申请号：US13035936

申请日：2011-02-26

申请人： Viswanathan Kanakasabai ,  Pradeep Vijayan ,  Bhaskar Sen

发明人： Viswanathan Kanakasabai ,  Pradeep Vijayan ,  Bhaskar Sen

IPC分类号： H02J3/14

CPC分类号： H02M5/4585 ,  H02J3/36 ,  H02M2001/008 ,  Y02E60/60 ,  Y10T307/414

摘要： A sub-sea power transmission/distribution network includes a plurality of standard proven power converter building blocks on each of the power source side and the sub-sea load side. The power source side converters and the sub-sea load side converters are each configured to provide a modular stacked dc (MSDC) converter architecture. The power source side converters are further configured to share the load equally or in proportion to their individual power ratings. The configurations are based on corresponding droop curves representative of MSDC link current magnitude data and average output voltage data of the power source side converters.

摘要翻译： 海底电力传输/分配网络包括在电源侧和海底负载侧的多个标准验证的电力转换器构建块。 电源侧转换器和海底负载侧转换器各自配置为提供模块化堆叠直流（MSDC）转换器架构。 电源侧转换器进一步被配置为平均地或与其各自的额定功率成比例地共享负载。 这些配置基于代表MSDC链路电流幅度数据和电源侧转换器的平均输出电压数据的相应下降曲线。

公开(公告)号：US20120217802A1

公开(公告)日：2012-08-30

申请号：US13035936

申请日：2011-02-26

申请人： Viswanathan Kanakasabai ,  Pradeep Vijayan ,  Bhaskar Sen

发明人： Viswanathan Kanakasabai ,  Pradeep Vijayan ,  Bhaskar Sen

IPC分类号： H02J1/14

CPC分类号： H02M5/4585 ,  H02J3/36 ,  H02M2001/008 ,  Y02E60/60 ,  Y10T307/414

摘要： A sub-sea power transmission/distribution network includes a plurality of standard proven power converter building blocks on each of the power source side and the sub-sea load side. The power source side converters and the sub-sea load side converters are each configured to provide a modular stacked dc (MSDC) converter architecture. The power source side converters are further configured to share the load equally or in proportion to their individual power ratings. The configurations are based on corresponding droop curves representative of MSDC link current magnitude data and average output voltage data of the power source side converters.

摘要翻译： 海底电力传输/分配网络包括在电源侧和海底负载侧的多个标准验证的电力转换器构建块。 电源侧转换器和海底负载侧转换器各自配置为提供模块化堆叠直流（MSDC）转换器架构。 电源侧转换器进一步被配置为平均地或与其各自的额定功率成比例地共享负载。 这些配置基于代表MSDC链路电流幅度数据和电源侧转换器的平均输出电压数据的相应下降曲线。