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1. 发明申请

WO2006050344A2 SYSTEM AND METHOD FOR COLLECTING CHARACTERISTIC INFORMATION OF A MOTOR, NEURAL NETWORK AND METHOD FOR ESTIMATING REGIONS OF MOTOR OPERATION FROM INFORMATION CHARACTERIZING THE MOTOR, AND SYSTEM AND METHOD FOR CONTROLLING MOTOR OPERATION USING THE CHARACTERISTIC INFORMATION, THE NEURAL NETWORK OR BOTH 审中-公开
标题翻译：用于收集电动机的特征信息的系统和方法，神经网络和从电动机的信息估计电机运行区域的方法以及使用CHA控制电机操作的系统和方法
公开(公告)号：WO2006050344A2
公开(公告)日：2006-05-11
申请号：PCT/US2005/039432
申请日：2005-10-31
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. , HUDSON, Christopher, Allen , LOBO, Nimal , RAMU, Krishnan
发明人： HUDSON, Christopher, Allen , LOBO, Nimal , RAMU, Krishnan
IPC分类号： G05B19/18
CPC分类号： H02P23/0077
摘要： 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.
摘要翻译：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，并且收集表征所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。

2. 发明申请

WO2003100956A1 APPARATUS AND METHOD FOR IDENTIFYING AN OPERATIONAL PHASE AND CONTROLLING ENERGIZATION 审中-公开
标题翻译：用于识别操作阶段和控制能量的装置和方法
公开(公告)号：WO2003100956A1
公开(公告)日：2003-12-04
申请号：PCT/US2003/016627
申请日：2003-05-27
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. , RAMU, Krishnan , BHANOT, Ajit
发明人： RAMU, Krishnan , BHANOT, Ajit
IPC分类号： H02P1/46
CPC分类号： 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
摘要： A method for identifying an operational phase of a motor (203) may include obtaining a first value of a signal that is indicative of the operational phase of the motor (203) 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 (203) if the second value exceeds the first value by a non-negative first threshold value. A second operational phase of the motor (203) 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.
摘要翻译：用于识别电动机（203）的操作阶段的方法可以包括获得指示电动机（203）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（203）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（203）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。

3. 发明申请

WO2002099949A3 SYSTEM TO GENERATE AND CONTROL LEVITATION, PROPULSION AND GUIDANCE OF LINEAR SWITCHED RELUCTANCE MACHINES 审中-公开
公开(公告)号：WO2002099949A3
公开(公告)日：2002-12-12
申请号：PCT/US2002/018033
申请日：2002-06-06
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. , RAMU, Krishnan
发明人： RAMU, Krishnan
IPC分类号： B60L13/04
摘要： A translation system, applicable in trains, elevators, aircraft launchers, rail guns, conveyors, door openers, machine tools and servo drivers, includes a first linear switch reluctance machine (LSRM)(100) having a stator (104) and a translator (102) each configured, positioned and proportioned for electromagnetic 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 (100) to produce a longitudinal or propulsive force between the stator (104) and translator (102). The system further includes an assembly for the substantially simultaneous application of at least two phases of the DC excitation to the LSRM (100) to produce a continual normal force between the stator (104) and the translator (102). A second LSRM (200) may be provided, positioned in quadrature to the first LSRM (100), and in electromagnetic engagement with it. A multi-phasic excitation of a stator and translator of the second LSRM (200) produces both a guidance force for the first LSRM (100) 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.

4. 发明申请

WO2004084375A3 APPARATUS AND METHOD THAT PREVENT FLUX REVERSAL IN THE STATOR BACK MATERIAL OF A TWO-PHASE SRM (TPSRM) 审中-公开
公开(公告)号：WO2004084375A3
公开(公告)日：2004-09-30
申请号：PCT/US2004/008114
申请日：2004-03-17
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. , RAMU, Krishnan , LOBO, Savio, Nimal
发明人： RAMU, Krishnan , LOBO, Savio, Nimal
IPC分类号： H02K19/00
摘要： A two-phase switched reluctance motor includes a stator (311) made of ferromagnetic material with stator poles and a rotor (312) made of ferromagnetic material with rotor poles. There are two-phase windings (301-306) on the stator poles. The number of stator and rotor poles are selected such that no flux reversal occurs in any part of the stator core as a result of transitioning between the first and second excitation phases.

5. 发明申请

WO2003100957A3 METHOD, APPARATUS, AND SYSTEM FOR DRIVE CONTROL, POWER CONVERSION, AND START-UP CONTROL 审中-公开
公开(公告)号：WO2003100957A3
公开(公告)日：2003-12-04
申请号：PCT/US2003/016631
申请日：2003-05-27
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. , RAMU, Krishnan
发明人： RAMU, Krishnan
IPC分类号： H02P1/46
摘要： A power converter (500) for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor including first and second partial circuits (553, 554) for forming multiple conduction circuits in cooperation with first and second phase windings (505, 508) of the motor. The contoller (704) also includes a switch (555) operable to open and close a first conduction circuit, which includes the first phase winding (551), 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 (555) provides four-quadrant operation of the motor through regulated energization of the first and second phase windings (551, 552).

6. 发明申请

WO2003100948A1 PMBDCM AND TWO-PHASE SRM MOTOR 审中-公开
标题翻译： PMBDCM和两相SRM电机
公开(公告)号：WO2003100948A1
公开(公告)日：2003-12-04
申请号：PCT/US2003/016629
申请日：2003-05-27
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. , RAMU, Krishnan , STALEY, Amanda, Martin
发明人： RAMU, Krishnan , STALEY, Amanda, Martin
IPC分类号： H02K17/00
CPC分类号： 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
摘要： A two-phase switched reluctance motor (fig.4) with a pluraty of rotor poles (404) having asymmetric reluctance (405) about a central raidla axis of the respective rotor pole and a plurality of salient stator poles (402) having the same width as the rotor poles.
摘要翻译：具有多个转子极（404）的多相开关磁阻电动机（404），其具有围绕相应转子极的中心突出轴线的不对称磁阻（405）和具有相同转子极的多个定子极（402）宽度作为转子极。

7. 发明申请

WO2006039626A3 A SYSTEM AND METHOD OF A SINGLE SWITCH CONTROLLED RELUCTANCE MOTOR 审中-公开
公开(公告)号：WO2006039626A3
公开(公告)日：2006-04-13
申请号：PCT/US2005/035423
申请日：2005-10-03
申请人： VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. , RAMU, Krishnan , HA, Keunsoo , PARK, Sung-Yeul
发明人： RAMU, Krishnan , HA, Keunsoo , PARK, Sung-Yeul
IPC分类号： H02P1/46 , H02P3/18 , H02P6/00 , H02P23/00 , H02P25/00 , H02P27/00
摘要： 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.

8. 发明申请

WO2008153832A2 SWITCHED RELUCTANCE MACHINES WITH MINIMUM STATOR CORE 审中-公开
标题翻译：具有最小定位核心的切换式电机
公开(公告)号：WO2008153832A2
公开(公告)日：2008-12-18
申请号：PCT/US2008/006828
申请日：2008-05-30
申请人： RAMU, Krishnan , LEE, Cheewoo , LOBO, Nimal, Savio
发明人： RAMU, Krishnan , LEE, Cheewoo , LOBO, Nimal, Savio
IPC分类号： H02K27/26
CPC分类号： H02K1/14 , H02K19/106
摘要： 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 l-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.
摘要翻译：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1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。

9. 发明申请

WO2012061271A2 ROTOR LAMINATION SHAPING FOR MINIMUM CORE LOSS IN SRMS 审中-公开
标题翻译： SRMS中最小核心损耗的转子层压成型
公开(公告)号：WO2012061271A2
公开(公告)日：2012-05-10
申请号：PCT/US2011/058536
申请日：2011-10-31
申请人： RAMU INC. , RAMU, Krishnan
发明人： RAMU, Krishnan
IPC分类号： H02P6/14
CPC分类号： H02K1/32 , G01B11/26 , H02K1/14 , H02K1/146 , H02K1/148 , H02K1/20 , H02K1/24 , H02K15/12 , Y02T10/641
摘要： 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 plui-ality 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.
摘要翻译：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，并具有显着的转子极和一部分后部材料的聚集性。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。

10. 发明申请

WO2011123443A1 HIGH DENSITY WINDINGS FOR A CONCENTRIC WOUND ELECTRICAL MACHINE STATOR 审中-公开
标题翻译：高密度电机定子的高密度绕组
公开(公告)号：WO2011123443A1
公开(公告)日：2011-10-06
申请号：PCT/US2011/030323
申请日：2011-03-29
申请人： RAMU, INC. , RAMU, Krishnan
发明人： RAMU, Krishnan
IPC分类号： H02P1/46
CPC分类号： H02K1/14 , H02K3/18 , H02K2213/03 , H02P7/281
摘要： 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.
摘要翻译：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。至少一个导电材料的定子极的一侧上的几何轮廓，从开关磁阻电机的横截面看，每个定子极都不是矩形的。

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