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1. 发明申请

US20110068753A1 GENERATOR WITH QUADRATURE AC EXCITATION 有权
标题翻译：发电机与交流激励
公开(公告)号：US20110068753A1
公开(公告)日：2011-03-24
申请号：US12954231
申请日：2010-11-24
申请人： MINGZHOU XU , CRISTIAN E. ANGHEL , WAYNE T. PEARSON
发明人： MINGZHOU XU , CRISTIAN E. ANGHEL , WAYNE T. PEARSON
IPC分类号： H02P9/42
CPC分类号： H02K19/26 , H02K17/44 , H02K19/38
摘要： A generator system is configured to supply two phase excitation current from an exciter rotor to a main generator rotor. When driven by a variable speed prime mover, the generator system provides relatively constant frequency AC power by independently controlling the main rotor flux rotational speed. The generator system includes an exciter stator that induces current in the exciter rotor windings at a desired frequency and phasing. The exciter rotor windings are electrically connected to the main rotor windings to provide two-phase excitation current to the main rotor windings. Excitation is supplied to the exciter stator from an exciter controller, which controls the frequency and phasing of the exciter excitation, based on the rotational speed of the generator, to maintain a constant output frequency. The exciter frequency control function of the exciter controller may be eliminated when the generator system is driven by a constant speed prime mover or when a narrow band variable frequency output is required.
摘要翻译：发电机系统被配置为从励磁机转子向主发电机转子提供两相励磁电流。当由变速原动机驱动时，发电机系统通过独立控制主转子磁通转速提供相对恒定的交流电力。发电机系统包括激励器定子，其以期望的频率和定相在励磁机转子绕组中感应电流。励磁机转子绕组电连接到主转子绕组，以向主转子绕组提供两相励磁电流。激励从激励器控制器提供给励磁机定子，励磁机控制器基于发电机的转速控制励磁机励磁的频率和定相，以保持恒定的输出频率。当发电机系统由恒速原动机驱动时或者当需要窄带可变频率输出时，可以消除励磁机控制器的励磁机频率控制功能。

2. 发明申请

US20080303280A1 ENGINE START SYSTEM WITH QUADRATURE AC EXCITATION 有权
标题翻译：发动机启动系统与交错激励
公开(公告)号：US20080303280A1
公开(公告)日：2008-12-11
申请号：US11758189
申请日：2007-06-05
申请人： MINGZHOU XU , CRISTIAN E. ANGHEL , WAYNE T. PEARSON
发明人： MINGZHOU XU , CRISTIAN E. ANGHEL , WAYNE T. PEARSON
IPC分类号： F02N11/04 , B64D31/00 , H02P9/00
CPC分类号： H02P9/302 , H02P2101/30
摘要： A starter-generator system may be used to supply sufficient starting torque to start an aircraft main engine. The main starter-generator stator winding may be connected to a constant frequency (CF) power source to create a rotating field in the main starter-generator air gap. This rotating field, in turn, may induce current on the main rotor winding, which may be a closed circuit formed by main rotor field winding and exciter armature winding. The interaction between the main rotor current and the air gap flux may give rise to the starting torque to start the main engine. Adjusting the voltage supplied to the exciter stator field winding can modify the induced voltage and current on the rotor circuit to control the rotor current and starting torque. The starter-generator system may also be used to start an aircraft main engine by directly connecting the main stator winding to a power source without powering the exciter stator.
摘要翻译：起动发电机系统可用于提供足够的起动转矩来启动飞行器主机。主起动器 - 发电机定子绕组可以连接到恒定频率（CF）电源，以在主起动器 - 发电机气隙中产生旋转场。这个旋转场又可能在主转子绕组上感应出电流，主转子绕组可能是由主转子励磁绕组和励磁机电枢绕组形成的闭合电路。主转子电流和气隙磁通之间的相互作用可能会引起启动主机的起动转矩。调整提供给励磁机定子励磁绕组的电压可以改变转子电路上的感应电压和电流，以控制转子电流和起动转矩。起动发电机系统也可用于通过将主定子绕组直接连接到电源而不为励磁机定子供电而启动飞行器主机。

3. 发明授权

US07301311B2 Brushless starter-generator with independently controllable exciter field 有权
标题翻译：具有独立可控励磁场的无刷起动发电机
公开(公告)号：US07301311B2
公开(公告)日：2007-11-27
申请号：US11360116
申请日：2006-02-22
申请人： Mingzhou Xu , Dwayne M. Benson
发明人： Mingzhou Xu , Dwayne M. Benson
IPC分类号： H02P9/44
CPC分类号： H02K19/12 , H02K19/28
摘要： A starter-generator system supplies a controllable torque to a gas turbine engine, to thereby assist in starting the gas turbine engine, by independently controlling excitation frequency and/or voltage magnitude. The starter-generator includes a multi-phase exciter stator, a rotationally mounted multi-phase exciter rotor, a multi-phase main stator, a rotationally mounted multi-phase main rotor, and an exciter controller. The rotationally mounted multi-phase exciter rotor has a plurality of exciter rotor windings wound thereon that, upon excitation thereof with a rotating electromagnetic exciter flux generated by the exciter stator, have non-rectified excitation currents induced therein. The rotationally mounted multi-phase main rotor has a plurality of main rotor windings wound thereon that are electrically connected to receive the non-rectified excitation currents induced in the exciter rotor windings and that, upon excitation thereof with a rotating electromagnetic flux and in response to the non-rectified excitation currents supplied thereto, have currents induced therein that generate a main rotor torque to thereby cause the multi-phase main rotor and the multi-phase exciter rotor to rotate. The exciter controller is electrically coupled to at least the exciter stator and is configured to selectively supply the electrical excitation thereto, to thereby selectively control the generated main rotor torque.
摘要翻译：起动发电机系统通过独立地控制励磁频率和/或电压幅度，向燃气涡轮发动机提供可控转矩，从而辅助启动燃气涡轮发动机。起动发电机包括多相励磁机定子，旋转安装的多相励磁机转子，多相主定子，旋转安装的多相主转子和励磁机控制器。旋转安装的多相励磁机转子具有缠绕在其上的多个励磁转子绕组，其在由励磁机定子产生的旋转电磁激励器励磁的情况下具有在其中引起的非整流励磁电流。旋转安装的多相主转子具有缠绕在其上的多个主转子绕组，其被电连接以接收在励磁机转子绕组中感应的非整流励磁电流，并且在用旋转电磁通量激励时响应于提供给其的非整流励磁电流具有产生主转子转矩的电流，从而使多相主转子和多相励磁机转子旋转。激励器控制器电耦合到至少励磁机定子并且被配置为选择性地向其施加电激励，从而选择性地控制所产生的主转子转矩。

4. 发明申请

US20090045784A1 A NOVEL AIRCRAFT ENGINE STARTER/GENERATOR 失效
标题翻译：一个新的飞机发动机起动器/发电机
公开(公告)号：US20090045784A1
公开(公告)日：2009-02-19
申请号：US11837634
申请日：2007-08-13
申请人： MINGZHOU XU , Cristian E. Anghel , Wayne T. Pearson
发明人： MINGZHOU XU , Cristian E. Anghel , Wayne T. Pearson
IPC分类号： H02P9/08
CPC分类号： F02N11/04 , F02N11/0859 , F02N2300/104
摘要： A rotor resistor and switch combination may cause a starter/generator device to function as an asynchronous device when in a start mode. Thus, starting torque may result. A starter/generator device may include an exciter rotor winding, a main rotor winding, and a resistor and switch combination positioned between the exciter rotor winding and the main rotor winding to control a flow of current in the main rotor winding during a start mode of the starter/generator device. A method of optimizing starting torque of a starter/generator device without a start controller unit during a start mode may include providing a main rotor winding of the starter/generator device, and providing a control to control a flow of current in the main rotor winding during the start mode.
摘要翻译：转子电阻和开关组合可能会使起动/发电机装置在起动模式时作为异步装置发挥作用。因此，可能导致启动转矩。起动器/发电机装置可以包括位于励磁机转子绕组和主转子绕组之间的励磁机转子绕组，主转子绕组和电阻器和开关组合，以在主转子绕组的起动模式期间控制主转子绕组中的电流流动起动器/发电机装置。在起动模式期间，无起动控制器单元优化起动/发电机装置的启动转矩的方法可包括提供起动/发电机装置的主转子绕组，并提供控制以控制主转子绕组中的电流在启动模式。

5. 发明授权

US07439646B2 High power generator with enhanced stator heat removal 失效
标题翻译：具有增强的定子散热的大功率发电机
公开(公告)号：US07439646B2
公开(公告)日：2008-10-21
申请号：US11359116
申请日：2006-02-21
申请人： Balwinder S. Birdi , William M. Scherzinger , Mingzhou Xu
发明人： Balwinder S. Birdi , William M. Scherzinger , Mingzhou Xu
IPC分类号： H02K1/06
CPC分类号： H02K9/19 , H02K1/20 , H02K5/20
摘要： A high speed, high power generator has its main stator configured with one or more reduced-diameter sections. The generator includes a generator housing, a main rotor, and a main stator. The generator housing has a main stator cooling flow passage formed therein that is configured to receive a flow of a cooling medium. The main rotor is rotationally mounted in the generator housing. The main stator is mounted within the generator housing and surrounds at least a portion of the main rotor. The main stator includes a stator core coupled to the generator housing adjacent the main stator cooling flow passage, and includes two or more nominal-diameter sections and one or more reduced-diameter sections. The nominal-diameter sections each have a first outer diameter, and the reduced-diameter sections, each have a second outer diameter that is less than the first diameter. Each reduced-diameter section is disposed between two nominal-diameter sections and is in fluid communication with the stator cooling flow passage.
摘要翻译：高速大功率发电机的主定子配置有一个或多个减径部分。发电机包括发电机壳体，主转子和主定子。发电机壳体具有形成在其中的主定子冷却流道，其构造成接收冷却介质的流动。主转子旋转地安装在发电机壳体中。主定子安装在发电机壳体内并围绕主转子的至少一部分。主定子包括与主定子冷却流动通道相邻的发电机壳体的定子芯，并且包括两个或更多个公称直径部分和一个或多个减径部分。公称直径部分各自具有第一外径，并且直径减小部分各自具有小于第一直径的第二外径。每个缩径部分设置在两个公称直径部分之间并且与定子冷却流动通道流体连通。

6. 发明授权

US07400056B2 Engine starter-generator optimized for start function 失效
公开(公告)号：US07400056B2
公开(公告)日：2008-07-15
申请号：US11529968
申请日：2006-09-29
申请人： Ray M. McGinley , Cristian E. Anghel , Mingzhou Xu
发明人： Ray M. McGinley , Cristian E. Anghel , Mingzhou Xu
IPC分类号： F02N11/04
CPC分类号： F02N11/04 , F02C7/268 , H02K3/28 , H02K19/10 , H02K19/16
摘要： A starter-generator system is configured to supply power to an aircraft electrical bus having a rated AC voltage magnitude, or receive power from a start converter, and includes a rotor and a stator. The stator is disposed at least partially around at least a portion of the rotor and has at least one multi-phase stator winding set wound thereon that has an increased number of turns per phase that is greater than a least number of turns per phase needed to supply power to an aircraft electrical bus at the rated AC voltage magnitude. The increased number of stator turns results in reduced current drawn by the starter-generator during the motor mode, which improves the efficiency and introduces other benefits to the overall starting system.

7. 发明申请

US20080067984A1 Starter-generator operable with multiple variable frequencies and voltages 有权
公开(公告)号：US20080067984A1
公开(公告)日：2008-03-20
申请号：US11524661
申请日：2006-09-20
申请人： Cristian E. Anghel , Mingzhou Xu
发明人： Cristian E. Anghel , Mingzhou Xu
IPC分类号： F02N11/04 , H02P9/40 , H02K23/52 , H02P9/04
CPC分类号： F02N11/04 , F01D15/10 , F02C7/268 , F05D2220/76 , H02K16/04 , H02K19/10 , H02K19/34
摘要： A starter-generator system is configured to be operable at multiple variable frequencies. The starter-generator includes a rotor and a stator. The rotor is configured to rotate and has a single main field winding wound thereon. The stator has at least a first stator winding set and second stator winding set independently wound thereon. Upon electrical excitation and rotation of the rotor the starter-generator supplies electrical power from each of the stator winding sets at different frequencies. Also, upon electrically exciting one or both of the stator winding sets with appropriate AC power, the rotor will rotate and generate a starting torque.

8. 发明申请

US20070194638A1 High power generator with enhanced heat removal 有权
标题翻译：大功率发电机，增强散热
公开(公告)号：US20070194638A1
公开(公告)日：2007-08-23
申请号：US11359115
申请日：2006-02-21
申请人： Balwinder Birdi , William Scherzinger , Mingzhou Xu
发明人： Balwinder Birdi , William Scherzinger , Mingzhou Xu
IPC分类号： H02K9/20 , H02K1/32 , H02K1/06
CPC分类号： H02K1/32 , H02K9/19
摘要： A high speed, high power generator has its main stator and main rotor configured to provide enhanced cooling capability. The generator includes a generator housing, a stator, a shaft, and a rotor. The stator is mounted within the generator housing. The shaft is rotationally mounted within the generator housing, and includes an inner surface that defines an internal fluid flow passage, an outer surface, and a plurality of interlamination cooling supply orifices extending between the shaft inner and outer surfaces. The rotor is mounted on the shaft and includes a plurality of poles formed from laminations, and one or more interlamination disks. Each interlamination disk is disposed between at least two of the laminations and includes a plurality of interlamination flow passages that receive a cooling medium from the shaft and direct the cooling medium, via centrifugal force, through the rotor and onto the stator.
摘要翻译：高速大功率发电机的主定子和主转子配置成提供更强的冷却能力。发电机包括发电机壳体，定子，轴和转子。定子安装在发电机壳体内。轴被旋转地安装在发电机壳体内，并且包括限定内部流体流动通道，外表面和在轴内表面和外表面之间延伸的多个层间冷却供给孔的内表面。转子安装在轴上并且包括由叠片形成的多个磁极和一个或多个分层盘。每个层叠盘设置在至少两个层叠之间，并且包括多个层间流动通道，其从轴接收冷却介质并且经由离心力将冷却介质引导通过转子并引导到定子上。

9. 发明申请

US20060214427A1 Hybrid gas turbine engine starter-generator 失效
标题翻译：混合燃气涡轮发动机起动发电机
公开(公告)号：US20060214427A1
公开(公告)日：2006-09-28
申请号：US11443855
申请日：2006-05-30
申请人： Mingzhou Xu , Michael Duddeck , Wayne Pearson , William Scherzinger , David Stout
发明人： Mingzhou Xu , Michael Duddeck , Wayne Pearson , William Scherzinger , David Stout
IPC分类号： H02P9/04 , F02D29/06
CPC分类号： H02P9/302 , H02K19/16 , H02K19/36 , H02K19/38 , H02K23/52 , H02P25/12 , H02P2101/30
摘要： A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a conventionally wound main stator that is selectively configurable as a multi-pole AC stator and a multi-pole DC stator. The machine also includes rotor windings that are configured to be selectively coupled to either an exciter or a plurality of commutator segments, and DC brushes that are selectively moveable into, and out of, electrical contact with the commutator segments, to thereby electrically couple and decouple a DC power source to and from, respectively, the rotor windings.
摘要翻译：可以以直流电动机模式或交流发电机模式操作的旋转电机，例如飞行器起动器 - 发电机。该机器包括常规缠绕的主定子，其可选择性地配置为多极交流定子和多极直流定子。该机器还包括转子绕组，其被配置为选择性地耦合到激励器或多个换向器段，以及DC电刷，其可选择性地移动到与换向器段电接触并且脱离与换向器段的电接触，从而电耦合和解耦分别来自转子绕组的直流电源。

10. 发明授权

US06995478B2 Gas turbine engine starter generator that selectively changes the number of rotor poles 失效
标题翻译：燃气涡轮发动机起动发电机选择性地改变转子极数
公开(公告)号：US06995478B2
公开(公告)日：2006-02-07
申请号：US11118942
申请日：2005-04-28
申请人： Mingzhou Xu , Wei Chen , Michael W. Duddeck , Wayne T. Pearson , William M. Scherzinger
发明人： Mingzhou Xu , Wei Chen , Michael W. Duddeck , Wayne T. Pearson , William M. Scherzinger
IPC分类号： H02P9/44
CPC分类号： H02K19/28 , H02K23/52 , Y10T307/391
摘要： A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a motor mode or an generator mode. The machine includes a main rotor that is selectively configurable as an M-pole rotor or an N-pole rotor. The machine can also include DC brushes that are selectively moveable into, and out of, electrical contact the main rotor, to thereby electrically couple and decouple a DC power source to and from, respectively, the rotor windings.
摘要翻译：可以以电动机模式或发电机模式操作的旋转电机，例如飞行器起动器发电机。该机器包括可选择性地配置为M极转子或N极转子的主转子。该机器还可以包括可选择性地移动到主转子的电气接触中的DC电刷，从而分别将DC电源电耦合到和去耦合转子绕组。

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