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：US08878467B2

公开(公告)日：2014-11-04

申请号：US13959334

申请日：2013-08-05

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02P25/08 ,  H02K1/14 ,  H02K3/18 ,  H02P6/14

CPC classification number: H02P6/14 ,  H02K1/14 ,  H02K3/18 ,  H02K2213/03

Abstract: Drive circuits that provide power factor correction and input current waveform shaping for controlling the speed and torque in a switched reluctance machine (SRM). The machine's phase windings are split into two segments, one of which is used for active power factor correction, input ac current waveform shaping and partial torque generation and the other of which is used for torque generation.

Abstract translation: 提供功率因数校正和输入电流波形整形的驱动电路，用于控制开关磁阻电机（SRM）中的速度和转矩。 机器相绕组分为两段，其中一段用于有功功率因数校正，输入交流电流波形整形和部分转矩生成，另一段用于转矩产生。

公开(公告)号：US08716961B2

公开(公告)日：2014-05-06

申请号：US13287234

申请日：2011-11-02

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: H02P1/00

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

Abstract: A method of operating an electrical machine having first and second phase windings. The method includes: (1) applying positive first current to the first phase winding while the first phase winding's back electromotive force (emf) is positive; (2) applying negative second current to the first phase winding while the first phase winding's back emf is negative; and (3) applying positive third current to the second phase winding while the second phase winding's back emf is positive. The first current is conducted through a circuit composed of a battery, the first phase winding, and a first switch. The second current is conducted through a circuit composed of a first capacitive storage element, the battery, the first phase winding, and a second switch, and the third current is conducted through a circuit composed of the battery, the second phase winding, and a third switch.

Abstract translation: 一种操作具有第一和第二相绕组的电机的方法。 该方法包括：（1）在第一相绕组的反电动势（emf）为正时，向第一相绕组施加正的第一电流; （2）当第一相绕组的后电动势为负时，将负的第二电流施加到第一相绕组; 和（3）在第二相绕组的反电动势为正时将正的第三电流施加到第二相绕组。 第一电流通过由电池，第一相绕组和第一开关构成的电路进行。 第二电流通过由第一电容性存储元件，电池，第一相绕组和第二开关构成的电路传导，并且第三电流通过由电池，第二相绕组和 第三开关

公开(公告)号：US08264182B2

公开(公告)日：2012-09-11

申请号：US12672688

申请日：2008-08-13

Applicant: Krishnan Ramu

Inventor： Krishnan Ramu

IPC: G05F1/70 ,  H02P25/08

CPC classification number: H02P25/092 ,  H02P2201/15 ,  Y02P80/112

Abstract: A power factor correction system includes a rectifier that rectifies the voltage of an alternating current (ac) power source to produce a voltage waveform that transitions, in a half sinusoid, from a minimum amplitude to a maximum amplitude and back to the minimum amplitude twice in the period of the ac power source. A phase winding of a motor conveys current induced by the voltage waveform, and a regulator regulates the flow of the current conveyed by the phase winding for storage as energy in a storage component.

Abstract translation: 功率因数校正系统包括整流器，其对交流（AC）电源的电压进行整流，以产生电压波形，该电压波形在半正弦曲线中从最小幅度转换到最大幅度，并返回到最小振幅两次 交流电源的周期。 电动机的相绕组传递由电压波形引起的电流，并且调节器调节由相绕组输送的电流的流量作为能量存储在存储部件中。

公开(公告)号：US20120104980A1

公开(公告)日：2012-05-03

申请号：US13287234

申请日：2011-11-02

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02P6/14

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

Abstract: A method of operating an electrical machine having first and second phase windings. The method includes: (1) applying positive first current to the first phase winding while the first phase winding's back electromotive force (emf) is positive; (2) applying negative second current to the first phase winding while the first phase winding's back emf is negative; and (3) applying positive third current to the second phase winding while the second phase winding's back emf is positive. The first current is conducted through a circuit composed of a battery, the first phase winding, and a first switch. The second current is conducted through a circuit composed of a first capacitive storage element, the battery, the first phase winding, and a second switch, and the third current is conducted through a circuit composed of the battery, the second phase winding, and a third switch.

Abstract translation: 一种操作具有第一和第二相绕组的电机的方法。 该方法包括：（1）在第一相绕组的反电动势（emf）为正时，向第一相绕组施加正的第一电流; （2）当第一相绕组的后电动势为负时，将负的第二电流施加到第一相绕组; 和（3）在第二相绕组的反电动势为正时将正的第三电流施加到第二相绕组。 第一电流通过由电池，第一相绕组和第一开关构成的电路进行。 第二电流通过由第一电容性存储元件，电池，第一相绕组和第二开关构成的电路传导，并且第三电流通过由电池，第二相绕组和 第三开关

公开(公告)号：US20120104895A1

公开(公告)日：2012-05-03

申请号：US13285196

申请日：2011-10-31

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02K1/06

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：US20110260672A1

公开(公告)日：2011-10-27

申请号：US13093189

申请日：2011-04-25

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02P25/08 ,  H02K19/06

CPC classification number: H02P25/08 ,  H02K21/44 ,  Y02P80/112

Abstract: A switched reluctance machine having salient stator and rotor poles. Alternating ones of the stator poles having windings and the others having permanent magnets attached on their pole faces. The alternate stator pole windings are provided with polarities that are suitable for unidirectional and bidirectional current operation of the switched reluctance machine. The alternate poles with permanent magnets in the switched reluctance machines can have also concentric windings placed on them and excited with currents to further augment the flux linkages in the stator poles. The windings on the poles with permanent magnets can be excited from the same source as the windings on the poles without permanent magnets to enhance power output or provide power factor correction.

Abstract translation: 开关磁阻电机具有凸极定子和转子极。 具有绕组的交替的定子极和其他具有附着在其极面上的永磁体的定子极。 替代的定子极绕组具有适合于开关磁阻电机的单向和双向电流操作的极性。 开关磁阻电机中具有永磁体的交替极可以具有放置在它们上的同心绕组，并用电流激励以进一步增大定子极中的磁通。 具有永磁体的磁极上的绕组可以与来自与永磁体上的磁极上的绕组相同的源激励，以增强功率输出或提供功率因数校正。

公开(公告)号：US20110234027A1

公开(公告)日：2011-09-29

申请号：US13074586

申请日：2011-03-29

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02K37/04

CPC classification number: H02K1/14 ,  H02K3/18 ,  H02K2213/03 ,  H02P7/281

Abstract: A switched reluctance motor includes at least four stator poles and an electrically conductive material around each of the stator poles. The geometric outline, on one side of the stator pole, of at least one of the conductive materials is not rectangular, as viewed from a cross-section of the switched reluctance motor showing each of the stator poles.

Abstract translation: 开关磁阻电动机包括至少四个定子极和围绕每个定子极的导电材料。 从定子极的至少一个导电材料的一侧上的几何轮廓，从显示每个定子极的开关磁阻电机的横截面看，不是矩形的。