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：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。

公开(公告)号：US20120104988A1

公开(公告)日：2012-05-03

申请号：US13287207

申请日：2011-11-02

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02P6/14 ,  H02P3/14 ,  H02J7/10

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

Abstract: A power converter having a first switch and a first unidirectional current device that conducts current unidirectionally. The first switch and first unidirectional current device are interconnected such that when interconnected with a dc voltage supply, battery, and first phase winding of an electrical machine: (1) a first operational state exists in which a conductive state of the first switch causes the dc voltage supply to conduct current through the first switch and first phase winding, so as to store energy within the first phase winding and (2) a second operational state exists in which a non-conductive state of the first switch causes the first phase winding to discharge its stored energy by conducting current through the first unidirectional current device and battery, so as to store energy in the battery.

Abstract translation: 具有第一开关和第一单向电流装置的功率转换器，其单向导通电流。 第一开关和第一单向电流装置互连，使得当与电机的直流电压，电池和第一相绕组互连时：（1）存在第一操作状态，其中第一开关的导通状态导致 直流电压供应以通过第一开关和第一相绕组传导电流，以便在第一相绕组内存储能量，以及（2）存在第一操作状态的第二操作状态，其中第一开关的非导通状态导致第一相绕组 通过传导电流通过第一单向电流装置和电池来释放其存储的能量，以便将电能存储在电池中。

公开(公告)号：US20110234136A1

公开(公告)日：2011-09-29

申请号：US13074628

申请日：2011-03-29

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: H02P27/00

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：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。

公开(公告)号：US20140035490A1

公开(公告)日：2014-02-06

申请号：US13959334

申请日：2013-08-05

Applicant: Krishnan RAMU

Inventor： Krishnan RAMU

IPC: 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：US20130009589A1

公开(公告)日：2013-01-10

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: H02P1/40

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。