公开(公告)号：US20050154545A1

公开(公告)日：2005-07-14

申请号：US10999646

申请日：2004-11-24

Applicant: Krishnan Ramu ,  Ajit Bhanot

Inventor： Krishnan Ramu ,  Ajit Bhanot

IPC: G01R25/00 ,  H02P25/08

CPC classification number: H02P25/089

Abstract: A method for identifying an operational phase of a motor may include obtaining a first value of a signal that is indicative of the operational phase of the motor and obtaining a second value of the signal after a period of time has expired. The method further includes identifying a first operational phase of the motor if the second value exceeds the first value by a non-negative first threshold value. A second operational phase of the motor is identified if the second value does not exceed the first value by the first threshold value. The first and second operational phases may correspond to relative positions of a motor's rotor and stator, such that periods of energization may be identified for producing motoring or regenerative torque.

Abstract translation: 用于识别电动机的操作阶段的方法可以包括获得指示电动机的操作阶段的信号的第一值，并且在一段时间到期之后获得信号的第二值。 该方法还包括如果第二值超过非负第一阈值的第一值，则识别电动机的第一操作阶段。 如果第二值不超过第一值第一阈值，则识别电动机的第二操作阶段。 第一和第二操作阶段可以对应于电动机的转子和定子的相对位置，使得可以识别通电周期以产生电动或再生转矩。

公开(公告)号：US09312733B2

公开(公告)日：2016-04-12

申请号：US13285196

申请日：2011-10-31

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02K1/14 ,  H02K1/32 ,  H02K1/20 ,  H02K1/24 ,  G01B11/26 ,  H02K15/12

CPC classification number: H02K1/32 ,  G01B11/26 ,  H02K1/14 ,  H02K1/146 ,  H02K1/148 ,  H02K1/20 ,  H02K1/24 ,  H02K15/12 ,  Y02T10/641

Abstract: An electromagnetic machine stator has a common pole and a plurality of excitation poles. Each excitation pole has a coil wound around it for inducing a magnetic flux through the excitation pole. The common pole that does not have a coil wound around it for inducing a magnetic flux. A flux barrier, disposed within the common pole, inhibits the flow of flux from one part of the common pole across the flux barrier to another part of the common pole. The flux barrier is less conducive to the flow of flux than is the common pole.

Abstract translation: 电磁机械定子具有公共极和多个激励极。 每个激励极具有缠绕在其上的线圈，用于引导通过激励极的磁通量。 没有线圈缠绕在其周围以引起磁通量的公共极点。 设置在公共极内的磁通屏障阻止来自公共极的一部分的磁通量穿过磁通屏障流到公共极的另一部分。 磁通屏障比通常的极点更不利于磁通流动。

公开(公告)号：US08952591B2

公开(公告)日：2015-02-10

申请号：US13285176

申请日：2011-10-31

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02K1/24 ,  H02K19/06 ,  H02K1/32 ,  H02K15/12

CPC classification number: H02K1/32 ,  G01B11/26 ,  H02K1/14 ,  H02K1/146 ,  H02K1/148 ,  H02K1/20 ,  H02K1/24 ,  H02K15/12 ,  Y02T10/641

Abstract: An electrical machine rotor includes a flux-conducting portion and a flux-inhibiting portion. The flux-conducting portion is conducive to conveying an electromagnetic flux and has a plurality of salient rotor poles and a portion of back material. The flux-inhibiting portion is less conducive to conveying an electromagnetic flux than the flux-conducting portion and is disposed entirely outside the boundaries of the rotor poles.

Abstract translation: 电机转子包括磁通传导部分和磁通抑制部分。 导磁部分有利于输送电磁通量并具有多个凸极转子极和一部分后部材料。 磁通抑制部分不利于传导电磁通量而不是导磁部分，并且完全设置在转子极的边界之外。

公开(公告)号：US20140084816A1

公开(公告)日：2014-03-27

申请号：US13837897

申请日：2013-03-15

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02P27/06

CPC classification number: H02P27/06 ,  H02P25/092

Abstract: A power converter has a first electrical circuit including a direct current (dc) voltage source, a first phase winding of an electrical machine, and a first switch operating in a conductive state. A second electrical circuit includes the first phase winding, a first unidirectional current device, and a capacitive storage element. A third electrical circuit includes the capacitive storage element, a second switch operating in a conductive state, and the first phase winding. A fourth electrical circuit includes the first phase winding, the dc voltage source, and a second unidirectional current device.

Abstract translation: 功率转换器具有包括直流（dc）电压源，电机的第一相绕组和工作在导通状态的第一开关的第一电路。 第二电路包括第一相绕组，第一单向电流装置和电容存储元件。 第三电路包括电容性存储元件，工作在导通状态的第二开关和第一相绕组。 第四电路包括第一相绕组，直流电压源和第二单向电流装置。

公开(公告)号：US08674648B2

公开(公告)日：2014-03-18

申请号：US12672694

申请日：2008-08-12

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02P25/08

CPC classification number: H02P25/04 ,  H02P25/089 ,  H02P25/092

Abstract: An improved single-switch control circuit for use in a multi-phase switched reluctance machine is provided. The control circuit includes at least first and second phase windings, a switch, a capacitor, and a diode. The capacitor may have a polarity opposite that of a power source in the control circuit. The first winding may be connected in series with the switch and connected in parallel with a circuit block comprising the second winding. The second winding may be connected in parallel with the capacitor and in series with the diode. In operation, the switch may be used to redirect current from the first winding to the second winding. The capacitor can become charged by the redirected current until it eventually stores enough energy to essentially discontinue current flow in the first winding. Then, the capacitor can discharge its stored energy as a current through the second winding. In this manner, substantially all of the energy from the first winding can be transferred to the second winding.

Abstract translation: 提供了一种用于多相开关磁阻电机的改进的单开关控制电路。 控制电路至少包括第一和第二相绕组，开关，电容器和二极管。 电容器可以具有与控制电路中的电源的极性相反的极性。 第一绕组可以与开关串联连接并且与包括第二绕组的电路块并联连接。 第二绕组可以与电容并联并与二极管串联。 在操作中，开关可以用于将电流从第一绕组重定向到第二绕组。 电容器可以通过重定向的电流充电，直到其最终存储足够的能量来基本上中断第一绕组中的电流。 然后，电容器可以通过第二绕组将其存储的能量作为电流放电。 以这种方式，来自第一绕组的基本上所有的能量可以传递到第二绕组。

公开(公告)号：US08624541B2

公开(公告)日：2014-01-07

申请号：US13460911

申请日：2012-05-01

Applicant: Krishnan Ramu ,  Keunsoo Ha ,  Sung-Yeul Park

Inventor： Krishnan Ramu ,  Keunsoo Ha ,  Sung-Yeul Park

IPC: H02P1/46 ,  H02P3/18 ,  H02P6/00

CPC classification number: H02P25/092

Abstract: Regulating the speed of a two-phase switched reluctance machine (TPSRM) rotor includes selecting either a motoring mode or braking mode of operation for the TPSRM, regulating the rotor speed, when the motoring mode is selected, using a control signal cooperatively produced by a speed control feedback loop and a current control feedback loop; and regulating the rotor speed, when the braking mode is selected, using a control signal produced by the current control feedback loop without the cooperation of the speed control feedback loop. The speed control feedback loop uses an established speed control signal and a signal indicative of the rotor's speed to dynamically adjust a first parameter governing the control signal. The current control feedback loop uses an established current control signal and a signal indicative of the current flowing through a stator winding of the TPSRM to dynamically adjust a second parameter governing the control signal.

Abstract translation: 调节二相开关磁阻电机（TPSRM）转子的转速包括：选择电机运行模式或TPSRM的制动运行模式，当选择运行模式时，使用协调制作的控制信号来调节转子转速 速度控制反馈回路和电流控制反馈回路; 并且当选择制动模式时，使用由电流控制反馈回路产生的控制信号，而不需要速度控制反馈回路的协调来调节转子速度。 速度控制反馈回路使用已建立的速度控制信号和指示转子速度的信号来动态调整控制控制信号的第一参数。 电流控制反馈回路使用建立的电流控制信号和指示流过TPSRM的定子绕组的电流的信号来动态地调整控制控制信号的第二参数。

公开(公告)号：US08203302B2

公开(公告)日：2012-06-19

申请号：US11718326

申请日：2005-10-03

Applicant: Krishnan Ramu ,  Keunsoo Ha ,  Sung-Yeul Park

Inventor： Krishnan Ramu ,  Keunsoo Ha ,  Sung-Yeul Park

IPC: H02P23/00 ,  H02P25/00 ,  H02P27/00

CPC classification number: H02P25/092

Abstract: A single controllable switch (509) drive system for regulating the speed of a two-phase switched reluctance machine (TPSRM) (700) rotor may include a speed control feedback loop (970) component that uses an established speed control signal and a signal indicative of the rotor's speed to dynamically adjust a first parameter. And a current control feedback loop (976) component that uses an established current control signal and a signal indicative of the current flowing through a stator winding (505,508) of the TPSRM to dynamically adjust a second parameter.

Abstract translation: 用于调节二相开关磁阻电机（TPSRM）（700））转子的速度的单个可控开关（509）驱动系统可以包括使用建立的速度控制信号和指示信号的信号的速度控制反馈回路（970）分量 的转子速度来动态调整第一个参数。 以及电流控制反馈回路（976）分量，其使用建立的电流控制信号和指示流过TPSRM的定子绕组（505,508）的电流的信号来动态地调整第二参数。

公开(公告)号：US20120056570A1

公开(公告)日：2012-03-08

申请号：US13296412

申请日：2011-11-15

Applicant: Christopher Allen Hudson ,  Nimal Lobo ,  Krishnan Ramu

Inventor： Christopher Allen Hudson ,  Nimal Lobo ,  Krishnan Ramu

IPC: H02P23/14

CPC classification number: H02P23/0077

Abstract: A method for collecting operational parameters of a motor may include controlling the energization of a phase winding of the motor to establish an operating point, monitoring operational parameters of the motor that characterize a relationship between the energization control applied to the motor's phase winding and the motor's response to this control, and collecting information of the operational parameters for the operating point that characterizes the relationship between the applied energization control and the motor's response. The collected information characterizing the relationship between the applied energization control and the motor's response may be employed by a neural network to estimate the regions of operation of the motor. And a system for controlling the operation of motor may employ this information, the neural network, or both to regulate the energization of a motor's phase winding during a phase cycle.

Abstract translation: 用于收集电动机的操作参数的方法可以包括控制电动机的相绕组的通电以建立工作点，监测电动机的操作参数，其表征施加到电动机的相绕组的通电控制与电动机的相位绕组之间的关系 响应于该控制，并且收集表征施加的通电控制和电动机响应之间的关系的操作点的操作参数的信息。 通过神经网络可以采集表征所施加的通电控制和电动机响应之间的关系的收集的信息来估计电动机的操作区域。 并且用于控制电动机的操作的系统可以使用该信息，神经网络或两者来调节在相循环期间电动机的相绕组的通电。

公开(公告)号：US20100141061A1

公开(公告)日：2010-06-10

申请号：US12601903

申请日：2008-05-30

Applicant: Krishnan Ramu ,  Nimai Lobo ,  Cheewoo Lee

Inventor： Krishnan Ramu ,  Nimai Lobo ,  Cheewoo Lee

IPC: H02K37/04

CPC classification number: H02K1/14 ,  H02K19/106

Abstract: A two-phase switched reluctance machine is provided using discontinuous core structures as the stator for low-cost, high-performance drives. This discontinuous stator core structure contains short flux paths and maximum overlap between the rotor poles and stator poles in the stator discontinuous core structures, regardless of the rotor position. Example configurations of such core structure include E-core, L-core and I-core configurations. Using less steel and magnet wire than in conventional SRM designs results in cost savings of stator material and winding material. Efficiency of this novel SRM is improved because of shorter flux paths resulting in reduction of core losses and decreased phase resistance resulting in reduction of copper losses. Two-phase simultaneous excitation of the novel SRM can reduce torque ripple during commutation as compared with existing two-phase SRMs.

Abstract translation: 使用不连续的核心结构作为用于低成本，高性能的驱动器的定子来提供两相开关磁阻电机。 这种不连续的定子铁芯结构在定子不连续的铁芯结构中包含短的磁通路径和转子磁极和定子极之间的最大重叠，而与转子位置无关。 这种核心结构的示例配置包括E核，L核和I核配置。 使用比常规SRM设计更少的钢和电线导致定子材料和绕组材料的成本节约。 这种新型SRM的效率得到改善，因为较短的磁通路径导致磁芯损耗的减小和相位阻力的降低，导致铜损耗的减少。 与现有的两相SRM相比，新型SRM的两相同步励磁可以减少转换期间的转矩波动。

公开(公告)号：US20070273322A1

公开(公告)日：2007-11-29

申请号：US11838693

申请日：2007-08-14

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02P1/46 ,  H02P7/08

CPC classification number: H02K19/103 ,  H02K1/24 ,  H02K7/09 ,  H02K16/00 ,  H02K16/04 ,  H02K17/00 ,  H02K21/12 ,  H02M2001/009 ,  H02M2003/1552 ,  H02M2003/1555 ,  H02P1/163 ,  H02P1/18 ,  H02P6/21 ,  H02P25/034 ,  H02P25/089 ,  H02P25/092 ,  H02P2201/09

Abstract: A power converter for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor may include first and second partial circuits for forming multiple conduction circuits in cooperation with first and second phase windings of the motor. The controller also includes a switch operable to open and close a first conduction circuit, which includes the first phase winding, and to regulate energization of the first and second phase windings of the motor through opening and closing the first conduction circuit. Control of the switch provides four-quadrant operation of the motor through regulated energization of the first and second phase windings.

Abstract translation: 用于开关磁阻电动机或永磁无刷直流（dc）电动机的功率转换器可以包括用于与电动机的第一和第二相绕组协作形成多个导通电路的第一和第二部分电路。 该控制器还包括可操作以打开和关闭包括第一相绕组的第一导通电路的开关，并且通过打开和闭合第一导电电路来调节电动机的第一和第二相绕组的通电。 开关的控制通过第一和第二相绕组的调节通电来提供电机的四象限运行。