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    • 3. 发明授权
    • Aircraft engine starter/generator
    • 飞机发动机起动器/发电机
    • US07592786B2
    • 2009-09-22
    • US11837634
    • 2007-08-13
    • Mingzhou XuCristian E. AnghelWayne T. Pearson
    • Mingzhou XuCristian E. AnghelWayne T. Pearson
    • H02P9/10H02P9/14F02N11/04H02K23/52H02P9/04
    • F02N11/04F02N11/0859F02N2300/104
    • 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.
    • 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,可能导致起动转矩。 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。
    • 6. 发明授权
    • Generator with quadrature AC excitation
    • 具有正交交流励磁的发电机
    • US08085004B2
    • 2011-12-27
    • US12954231
    • 2010-11-24
    • Mingzhou XuCristian E. AnghelWayne T. Pearson
    • Mingzhou XuCristian E. AnghelWayne T. Pearson
    • H02P9/00
    • H02K19/26H02K17/44H02K19/38
    • 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.
    • 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。
    • 8. 发明授权
    • Low profile generator configuration
    • 低调发电机配置
    • US07230363B2
    • 2007-06-12
    • US10812725
    • 2004-03-30
    • David E. StoutWayne T. PearsonMingzhou XuMichael W. Duddeck
    • David E. StoutWayne T. PearsonMingzhou XuMichael W. Duddeck
    • H00K1/22
    • H02K19/38H02K11/046H02K16/00
    • One embodiment of the invention relates to a low profile electric generator having a short axial length. A cylindrical rotor body defines an interior cavity and is coupled to a driveshaft along the axis of the cylindrical body. A first rotor assembly is coupled to the inner surface of the cylindrical body, the first rotor assembly defining a space to receive a first stator that is independent from the cylindrical body. A second rotor assembly is coupled to the outer surface of the cylindrical body and electrically coupled to the first rotor assembly. A second stator is arranged around the second rotor assembly, independent from the cylindrical body, and radially positioned about the axis of the cylindrical body. By arranging the generator components in such configuration, the axial length of the generator is reduced in comparison to a conventional generator.
    • 本发明的一个实施例涉及一种具有短轴向长度的低轮廓发电机。 圆柱形转子主体限定内腔,并且沿着圆柱体的轴线联接到驱动轴。 第一转子组件联接到圆柱体的内表面,第一转子组件限定用于容纳独立于圆柱体的第一定子的空间。 第二转子组件联接到圆柱体的外表面并电耦合到第一转子组件。 第二定子围绕第二转子组件设置,独立于圆柱体,并且围绕圆柱体的轴线径向定位。 通过将发电机部件布置在这种构造中,与常规发电机相比,发电机的轴向长度减小。
    • 10. 发明授权
    • Engine start system with quadrature AC excitation
    • 具有正交交流励磁的发动机启动系统
    • US07514806B2
    • 2009-04-07
    • US11758189
    • 2007-06-05
    • Mingzhou XuCristian E. AnghelWayne T. Pearson
    • Mingzhou XuCristian E. AnghelWayne T. Pearson
    • H02P7/36
    • H02P9/302H02P2101/30
    • 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.
    • 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。