Gas turbine engine starter generator with switchable exciter stator windings
    3.
    发明授权
    Gas turbine engine starter generator with switchable exciter stator windings 失效
    具有可切换励磁机定子绕组的燃气涡轮发动机起动发电机

    公开(公告)号:US06768278B2

    公开(公告)日:2004-07-27

    申请号:US10213649

    申请日:2002-08-06

    IPC分类号: H02P520

    摘要: A rotating electrical machine, such as an aircraft starter-generator, includes an exciter that has its stator windings divided into a number of sections. A plurality of switches are electrically coupled to the exciter stator winding sections and are configured and controlled so that the exciter stator winding sections may be selectively coupled in series or in parallel with one another, and selectively coupled to receive either DC or AC power.

    摘要翻译: 诸如飞行器起动器 - 发电机的旋转电机包括其定子绕组被分成多个部分的励磁机。 多个开关电耦合到励磁机定子绕组部分,并且被构造和控制,使得励磁机定子绕组部分可以彼此串联或并联选择性地耦合,并且选择性地耦合以接收DC或AC电力。

    A NOVEL AIRCRAFT ENGINE STARTER/GENERATOR
    4.
    发明申请
    A NOVEL AIRCRAFT ENGINE STARTER/GENERATOR 失效
    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

    IPC分类号: H02P9/08

    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。

    Aircraft engine starter/generator
    5.
    发明授权
    Aircraft engine starter/generator 失效
    飞机发动机起动器/发电机

    公开(公告)号:US07592786B2

    公开(公告)日:2009-09-22

    申请号:US11837634

    申请日:2007-08-13

    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。

    Engine start system with quadrature AC excitation
    6.
    发明授权
    Engine start system with quadrature AC excitation 有权
    具有正交交流励磁的发动机启动系统

    公开(公告)号:US07514806B2

    公开(公告)日:2009-04-07

    申请号:US11758189

    申请日:2007-06-05

    IPC分类号: H02P7/36

    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。

    Generator with quadrature AC excitation
    7.
    发明授权
    Generator with quadrature AC excitation 有权
    具有正交交流励磁的发电机

    公开(公告)号:US08085004B2

    公开(公告)日:2011-12-27

    申请号:US12954231

    申请日:2010-11-24

    IPC分类号: H02P9/00

    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。

    Generator with quadrature AC excitation

    公开(公告)号:US07863868B2

    公开(公告)日:2011-01-04

    申请号:US11758163

    申请日:2007-06-05

    IPC分类号: H02P9/00

    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.

    Modular and scalable power conversion system for aircraft
    10.
    发明授权
    Modular and scalable power conversion system for aircraft 有权
    模块化和可扩展的飞机电力转换系统

    公开(公告)号:US07615892B2

    公开(公告)日:2009-11-10

    申请号:US11594847

    申请日:2006-11-09

    IPC分类号: H02J9/00

    摘要: A method and apparatuses are used for power conversion. The apparatus according to one embodiment comprises a plurality of power conversion modules (130—1, . . . , 130—n), the plurality of power conversion modules (130—1, . . . , 130—n) being optionally controllable to function independently of each other to supply a plurality of systems (200—1, . . . , 200—n), function in an inter-relational mode in which at least one power conversion module from the plurality of power conversion modules (130—1, . . . , 130—n) drives a system and, upon a failure of the at least one power conversion module, at least another power conversion module from the plurality of power conversion modules (130—1, . . . , 130—n) will drive the system, and function in a scalable mode in which at least two power conversion modules of the plurality of power conversion modules (130—1, . . . , 130—n) are connected to provide an additive output.

    摘要翻译: 一种方法和装置用于电力转换。 根据一个实施例的装置包括多个功率转换模块(130-1,...,130-n),所述多个功率转换模块(130-1,...,130-n)可选地可控制到 功能彼此独立以提供多个系统(200-1,...,200-n)的功能,其中来自所述多个电力转换模块(130- ...)的至少一个电力转换模块, 1,...,130-n)驱动系统,并且在所述至少一个功率转换模块发生故障时,来自所述多个功率转换模块(130-1,...,130,...)的至少另一个功率转换模块 -n)将驱动系统并且以可伸缩模式工作,其中多个电力转换模块(130-1,...,130-n)中的至少两个电力转换模块被连接以提供附加输出。