公开(公告)号：US20130173072A1

公开(公告)日：2013-07-04

申请号：US13343339

申请日：2012-01-04

申请人： Harry Paul Ridenour, III ,  Sunil Keshava ,  Raghavendra Rao Perampalli Nekkar

发明人： Harry Paul Ridenour, III ,  Sunil Keshava ,  Raghavendra Rao Perampalli Nekkar

IPC分类号： G06F1/26

CPC分类号： G05B19/042 ,  H04L12/6418

摘要： A control system for a power application is provided, including a control module and a configuration tool. The control module is in communication with the power application. The control module includes control logic for controlling the power application by a plurality of frame states. All of the frame states are executed within a period of time referred to as a frame rate. The control module includes control logic for allotting an adjustable amount of time for each of the frame states. The configuration tool is in communication with the control module. The configuration tool includes control logic for modifying the adjustable amount of time of each of the plurality of frame states without modifying the frame rate.

摘要翻译： 提供了一种用于电力应用的控制系统，包括控制模块和配置工具。 控制模块与电源应用通信。 控制模块包括用于通过多个帧状态来控制功率应用的控制逻辑。 所有帧状态在被称为帧速率的时间段内被执行。 控制模块包括用于为每个帧状态分配可调节时间量的控制逻辑。 配置工具与控制模块通信。 该配置工具包括控制逻辑，用于修改多个帧状态中的每一个的可调整时间量，而不改变帧速率。

公开(公告)号：US06759780B2

公开(公告)日：2004-07-06

申请号：US09850758

申请日：2001-05-08

申请人： Buyun Liu ,  Tomy Sebastian ,  Sunil Keshava Murthy

发明人： Buyun Liu ,  Tomy Sebastian ,  Sunil Keshava Murthy

IPC分类号： H02K100

CPC分类号： H02K3/28 ,  H02K29/03 ,  Y10T29/49009

摘要： A brushless electric motor is disclosed. In an exemplary embodiment of the invention, the motor includes a permanent magnet rotor having a plurality of magnetic poles thereupon and a stator. The stator further includes a plurality of stacked laminations defining a plurality of slots therein, and a plurality of fractional-pitch phase windings disposed within the plurality of slots. The motor has a non-integer slots-per-pole ratio, and a magnitude of 5th and 7th harmonic components of a fundamental frequency component of the motor are less than 0.3% and 0.1% of a magnitude of the fundamental frequency component, respectively.

摘要翻译： 公开了一种无刷电动机。 在本发明的示例性实施例中，电动机包括具有多个磁极和定子的永磁转子。 定子还包括在其中限定多个槽的多个堆叠的叠片以及设置在多个槽内的多个分数节距相绕组。 电动机具有非整数的每比特率比，马达的基频分量的5和7次谐波分量的幅度小于电机的基频分量的0.3％和0.1％ 基频分量。

公开(公告)号：US06713921B2

公开(公告)日：2004-03-30

申请号：US09850753

申请日：2001-05-08

申请人： Tomy Sebastian ,  Sunil Keshava Murthy ,  Buyun Liu ,  Mark F. Fleer

发明人： Tomy Sebastian ,  Sunil Keshava Murthy ,  Buyun Liu ,  Mark F. Fleer

IPC分类号： H02K2112

CPC分类号： H02K1/278 ,  H02K2201/06

摘要： A permanent magnet structure for use in brushless motors is disclosed. In an exemplary embodiment of the invention, the magnet structure includes a parallelogram shaped body. The body has an outer surface and an inner surface, with the outer surface and the inner surface being arcuate in shape.

摘要翻译： 公开了一种用于无刷电动机的永磁体结构。 在本发明的示例性实施例中，磁体结构包括平行四边形成形体。 主体具有外表面和内表面，外表面和内表面呈弓形。

公开(公告)号：US09372478B2

公开(公告)日：2016-06-21

申请号：US13343339

申请日：2012-01-04

申请人： Harry Paul Ridenour, III ,  Sunil Keshava ,  Raghavendra Rao Perampalli Nekkar

发明人： Harry Paul Ridenour, III ,  Sunil Keshava ,  Raghavendra Rao Perampalli Nekkar

IPC分类号： G06F1/26 ,  G05B19/042 ,  H04L12/64

CPC分类号： G05B19/042 ,  H04L12/6418

摘要： A control system for a power application is provided, including a control module and a configuration tool. The control module is in communication with the power application. The control module includes control logic for controlling the power application by a plurality of frame states. All of the frame states are executed within a period of time referred to as a frame rate. The control module includes control logic for allotting an adjustable amount of time for each of the frame states. The configuration tool is in communication with the control module. The configuration tool includes control logic for modifying the adjustable amount of time of each of the plurality of frame states without modifying the frame rate.

摘要翻译： 提供了一种用于电力应用的控制系统，包括控制模块和配置工具。 控制模块与电源应用通信。 控制模块包括用于通过多个帧状态来控制功率应用的控制逻辑。 所有帧状态在被称为帧速率的时间段内被执行。 控制模块包括用于为每个帧状态分配可调节时间量的控制逻辑。 配置工具与控制模块通信。 该配置工具包括用于修改多个帧状态中的每一个的可调整时间量而不修改帧速率的控制逻辑。

公开(公告)号：US06437526B1

公开(公告)日：2002-08-20

申请号：US09657887

申请日：2000-09-08

申请人： Benoit Derouane ,  Sunil Keshava Murthy ,  Tomy Sebastian ,  Buyun Liu

发明人： Benoit Derouane ,  Sunil Keshava Murthy ,  Tomy Sebastian ,  Buyun Liu

IPC分类号： H02K2908

CPC分类号： B62D5/046 ,  H02K29/08 ,  H02P6/10

摘要： A system for reducing torque ripple in an electric motor, comprising an electric motor having a stator and a rotor, a first set of N Hall sensors, a second set of N Hall sensors, a controller, and wherein said N Hall sensors in each said set of Hall sensors is spaced 360/N electrical degrees apart and said first and second sets of Hall sensors are spaced T electrical degrees apart, and wherein said controller is adapted to provide increased current during an overlap period detected by said Hall sensors.

摘要翻译： 一种用于减小电动机中的转矩波动的系统，包括具有定子和转子的电动机，第一组N个霍尔传感器，第二组N个霍尔传感器，一个控制器，并且其中每个所述的N个霍尔传感器 霍尔传感器组间隔开360 / N电角度，所述第一组霍尔传感器和第二组霍尔传感器间隔开T电度，并且其中所述控制器适于在由所述霍尔传感器检测到的重叠周期期间提供增加的电流。

公开(公告)号：US06380658B1

公开(公告)日：2002-04-30

申请号：US09616720

申请日：2000-07-14

申请人： Tomy Sebastian ,  Sunil Keshava Murthy ,  Buyun Liu ,  Scott R Berggren

发明人： Tomy Sebastian ,  Sunil Keshava Murthy ,  Buyun Liu ,  Scott R Berggren

IPC分类号： H02K122

CPC分类号： H02K29/03

摘要： A method for determining a dimension in a motor is described. By applying Fourier analysis, a sequence of terms is obtained. Since the fifth harmonic is the most undesirable term, the minimization of the fifth harmonic term will make resultant waveform closer to sine wave. Based upon the above, a determination of an angle &dgr; is described, wherein the fifth harmonic term of the sequence of terms is minimized. An electric motor having a rotor and a set of slot on said rotor surface having a set of magnets with a width &dgr; along the circumference of said rotor surface is described. The width &dgr; is determined by a method that includes applying Fourier analysis thereby a sequence of terms is obtained. Since the fifth harmonic is the most undesirable term, the minimization of the fifth harmonic term will make resultant waveform closer to sine wave. Based upon the above, a determination of an angle &dgr; is described, wherein the fifth harmonic term of the sequence of terms is minimized.

摘要翻译： 描述了用于确定电动机中的尺寸的方法。 通过应用傅立叶分析，获得一系列术语。 由于五次谐波是最不希望的术语，因此五次谐波项的最小化将使得波形接近正弦波。 基于上述，描述了角度Δ的确定，其中术语序列的五次谐波项被最小化。具有转子和在所述转子表面上的一组槽的电动机具有一组具有宽度的磁体 描述了沿着所述转子表面的圆周的三角形。 宽度δ由包括应用傅立叶分析的方法确定，从而获得一系列术语。 由于五次谐波是最不希望的术语，因此五次谐波项的最小化将使得波形接近正弦波。 基于上述，描述了角度角度的确定，其中术语序列的五次谐波项被最小化。