公开(公告)号：US07420308B2

公开(公告)日：2008-09-02

申请号：US10999218

申请日：2004-11-24

Applicant: Krishnan Ramu ,  Amanda Martin Staley

Inventor： Krishnan Ramu ,  Amanda Martin Staley

IPC: H02K1/00

CPC classification number: H02K1/246 ,  H02K19/103

Abstract: A two-phase switched reluctance motor in an embodiment includes a plurality of salient rotor poles that each have asymmetric reluctances about a central radial axis of the respective rotor pole. Each of the rotor poles has the same width, and the rotor poles are operable to provide preferential torque generation in one direction of rotation for all rotor positions. Such preferential torque generation occurs under the influence of an electromagnetic flux, which is provided by a plurality of salient stator poles having substantially the same width as the rotor poles.

Abstract translation: 在一个实施例中的两相开关磁阻电动机包括多个凸极转子极，它们各自具有关于相应转子极的中心径向轴线的不对称磁阻。 每个转子极具有相同的宽度，并且转子极可操作以在所有转子位置的一个旋转方向上产生优先转矩。 这种优先转矩产生在电磁通量的影响下发生，该电磁通由具有与转子极大致相同宽度的多个凸极定子极提供。

公开(公告)号：US07412339B2

公开(公告)日：2008-08-12

申请号：US10999646

申请日：2004-11-24

Applicant: Krishnan Ramu ,  Ajit Bhanot

Inventor： Krishnan Ramu ,  Ajit Bhanot

IPC: H02P1/00 ,  H02P3/00

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：US07372232B2

公开(公告)日：2008-05-13

申请号：US10996065

申请日：2004-11-24

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02P1/46 ,  H02P3/18 ,  H02P6/00 ,  H02P23/00 ,  H02P25/00

CPC classification number: H02M3/1582 ,  H02M2003/1555 ,  H02P6/28 ,  H02P25/0925

Abstract: A power converter for a switched reluctance motor (SRM) or a permanent magnet brushless direct current (do) motor (PMBDCM) may include a front-end boost partial circuit for connecting with a first phase winding of the motor to form a front-end boost circuit and a back-end boost partial circuit for connecting with a second phase winding of the motor to form a back-end boost circuit. The front-end boost partial circuit generates a first step-up voltage in cooperation with the inductance provided by the first phase winding. The back-end boost partial circuit generates a second step-up voltage in cooperation with the inductance provided by the second phase winding.

Abstract translation: 用于开关磁阻电动机（SRM）或永磁无刷直流电动机（PMBDCM）的电力转换器可以包括用于与电动机的第一相绕组连接的前端升压部分电路，以形成前端 升压电路和后端升压部分电路，用于与电动机的第二相绕组连接以形成后端升压电路。 前端升压部分电路与由第一相绕组提供的电感相配合产生第一升压电压。 后端升压部分电路与由第二相绕组提供的电感相配合产生第二升压电压。

公开(公告)号：US20060273680A1

公开(公告)日：2006-12-07

申请号：US10549800

申请日：2004-03-17

Applicant: Krishnan Ramu ,  Savio Lobo

Inventor： Krishnan Ramu ,  Savio Lobo

IPC: H02K19/10

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.

Abstract translation: TPSRM可以包括具有多个极和铁磁或铁背材料的定子，以及具有多个极和铁磁或铁背材料的转子。 在第一激励阶段期间，流过卷绕在第一组多个定子极上的线圈的电流在第一组定子极和定子背材料的部分引起磁通流。 在第二激励阶段期间，流过绕第二组定子极的线圈的电流在第二组定子极和定子背材料的一部分引起磁通流。 选择该TPSRM的定子和转子极数，使得在第一和第二激发相之间的转变的结果，基本上不会在定子背材料的任何部分发生磁通反转。

公开(公告)号：US20050151437A1

公开(公告)日：2005-07-14

申请号：US10995557

申请日：2004-11-24

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02K7/09 ,  H02K16/04 ,  H02K19/10 ,  H02K21/12 ,  H02K16/00

CPC classification number: H02K1/246 ,  H02K7/09 ,  H02K16/04 ,  H02K19/103 ,  H02K21/12

Abstract: A rotor for an electrical motor may include a plurality of salient radial field rotor poles and a plurality of salient axial field rotor poles. The radial field rotor poles and the axial field rotor poles are respectively oriented on the rotor to receive or convey substantially perpendicular flux fields. Additionally, the radial field rotor poles may include both inner and outer peripheral rotor poles for communicating radial flux fields with separate coaxial stators.

Abstract translation: 用于电动机的转子可以包括多个显着的径向场转子极和多个凸轴向场转子极。 径向场转子极和轴向场转子极分别定向在转子上以接收或传送基本上垂直的磁场。 此外，径向场转子极可以包括用于将径向磁通场与单独的同轴定子连通的内周转子极和外周转子极。

公开(公告)号：US20050146304A1

公开(公告)日：2005-07-07

申请号：US10996043

申请日：2004-11-24

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02K1/06 ,  H02K1/14 ,  H02K1/24 ,  H02K7/09 ,  H02K16/00 ,  H02K16/04 ,  H02K17/00 ,  H02K19/10 ,  H02K21/12 ,  H02P1/16 ,  H02P1/18 ,  H02P6/08 ,  H02P6/20 ,  H02P7/06 ,  H02P25/02 ,  H02P25/08

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。