公开(公告)号：US20090200980A1

公开(公告)日：2009-08-13

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: H02P6/08

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：US07015615B2

公开(公告)日：2006-03-21

申请号：US10802054

申请日：2004-03-17

Applicant: Krishnan Ramu ,  Nimal Savio Lobo

Inventor： Krishnan Ramu ,  Nimal Savio Lobo

IPC: H02K17/42

CPC classification number: C12N13/00 ,  A61K9/0009 ,  C12M1/42 ,  C12M3/00 ,  C12M3/006 ,  C12M3/02 ,  C12M35/02 ,  C12M45/07 ,  C12N15/87 ,  H02K1/146 ,  H02K1/246 ,  H02K19/103

Abstract: A TPSRM may include a stator, having a plurality of poles and a ferromagnetic or iron back material, and a rotor having a plurality of poles and a ferromagnetic or iron back material. A current flowing through coils wound around a first set of the plurality of stator poles induces a flux flow through the first set of stator poles and portions of the stator back material during a first excitation phase. A current flowing through coils wound around a second set of the plurality of stator poles induces a flux flow through the second set of stator poles and portions of the stator back material during a second excitation phase. The numbers of stator and rotor poles for this TPSRM are selected such that substantially no flux reversal occurs in any part of the stator back material as a result of transitioning between the first and second excitation phases.

公开(公告)号：US20050115454A1

公开(公告)日：2005-06-02

申请号：US10728344

申请日：2003-12-02

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: B60L13/04 ,  B60L13/10

CPC classification number: B60L13/10 ,  B60L2200/26 ,  B60L2220/18

Abstract: A translation system, applicable in trains, elevators, aircraft launchers, rail guns, conveyors, door openers, machine tools and servo drives, includes a first linear switch reluctance machine (“LSRM”) having a stator and a translator each configured, positioned and proportioned for electromagentic engagement with the other. The system further includes an assembly for selectable application of at least one phase of a multiphasic DC excitation to the LSRM to produce a longitudinal or propulsive force between the stator and translator. The system further includes an assembly for the substantially simultaneous application of at least two phases of the DC excitation to the LSRM to produce a continual normal force between the stator and translator. A second LSRM may be provided, positioned in quadrature to the first LSRM, and in electromagetic engagement with it. A multi-phasic excitation of a stator and translator of the second LSRM produces both a guidance force for the first LSRM using error values generated by it and an additional propulsive force. Independent control of the phasic excitations for each of said propulsive, lift, and guidance forces may be provided.

Abstract translation: 适用于火车，电梯，飞机发射器，轨道枪，输送机，开门器，机床和伺服驱动器的翻译系统包括具有定子和平移器的第一线性开关磁阻电机（“LSRM” 与其他电磁接合成比例。 该系统还包括用于可选择地向LSRM施加多相DC激励的至少一相的组件，以在定子和转子之间产生纵向或推进力。 该系统还包括用于基本上同时向LSRM施加至少两个DC励磁相的组件，以在定子和转子之间产生连续的法向力。 可以提供第二LSRM，其位置与第一LSRM成正交，并且与其电气接合。 第二LSRM的定子和转子的多相激励使用由其产生的误差值和附加的推进力产生用于第一LSRM的引导力。 可以提供对于每个所述推进，升降和引导力的相位激励的独立控制。

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：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。