Active AC-link power converter
    3.
    发明授权

    公开(公告)号:US09755538B2

    公开(公告)日:2017-09-05

    申请号:US14939792

    申请日:2015-11-12

    CPC classification number: H02M5/458 H02M7/4826

    Abstract: A power converter includes an output converter having a 3-phase or higher output, an inductor coupled to the output converter and a switch device coupled to the inductor. The switch device charges the inductor via a DC input during a first stage of a switching cycle of the switch device. The output converter discharges the inductor to a load coupled to the 3-phase or higher output during a second stage of the switching cycle. The output converter includes a phase leg for each phase of the 3-phase or higher output, each phase leg having a first thyristor device connected in series with a second thyristor device. Each phase of the 3-phase or higher output originates between the first thyristor device and the second thyristor device of the corresponding phase leg.

    Active AC-Link Power Converter
    4.
    发明申请

    公开(公告)号:US20170141693A1

    公开(公告)日:2017-05-18

    申请号:US14939792

    申请日:2015-11-12

    CPC classification number: H02M5/458 H02M7/4826

    Abstract: A power converter includes an output converter having a 3-phase or higher output, an inductor coupled to the output converter and a switch device coupled to the inductor. The switch device charges the inductor via a DC input during a first stage of a switching cycle of the switch device. The output converter discharges the inductor to a load coupled to the 3-phase or higher output during a second stage of the switching cycle. The output converter includes a phase leg for each phase of the 3-phase or higher output, each phase leg having a first thyristor device connected in series with a second thyristor device. Each phase of the 3-phase or higher output originates between the first thyristor device and the second thyristor device of the corresponding phase leg.

    Doubly-Fed, Variable-Speed, Dual-Voltage AC Generation and Distribution Systems
    5.
    发明申请
    Doubly-Fed, Variable-Speed, Dual-Voltage AC Generation and Distribution Systems 有权
    双馈,可变速,双电压交流发电和配电系统

    公开(公告)号:US20160079898A1

    公开(公告)日:2016-03-17

    申请号:US14856012

    申请日:2015-09-16

    CPC classification number: H02P9/007

    Abstract: A generation and distribution system comprises an adjustable-speed prime mover and a doubly-fed asynchronous alternating-current (AC) generator driven by the prime mover and having a first poly-phase circuit, e.g., a stator, and a second poly-phase circuit, e.g., a rotor. The system further includes a first AC bus electrically coupled to the first poly-phase circuit and configured to deliver AC power at a first AC voltage to multiple loads, and a second AC bus configured to deliver AC power at a second AC voltage to another group of loads, the second AC voltage being lower than the first. Finally, the system includes a poly-phase transformer having first windings electrically coupled to the first poly-phase circuit and the first AC bus and having second windings electrically coupled to the second AC bus, and a poly-phase AC-to-AC electronic converter circuit electrically coupled between the second poly-phase circuit and the second AC bus.

    Abstract translation: 发电和配电系统包括可调速原动机和由原动机驱动的双馈异步交流(AC)发电机,并具有第一多相电路,例如定子和第二多相 电路,例如转子。 该系统还包括电耦合到第一多相电路并被配置为以第一AC电压向多个负载递送AC电力的第一AC总线,以及被配置为将第二AC电压的AC电力传递给另一组的第二AC总线 的负载,第二个交流电压低于第一个。 最后,该系统包括多相变压器,其具有电耦合到第一多相电路和第一AC总线的第一绕组,并具有电耦合到第二AC总线的第二绕组,以及多相AC至AC电子 转换器电路电耦合在第二多相电路和第二AC总线之间。

    Doubly-fed, variable-speed, dual-voltage AC generation and distribution systems

    公开(公告)号:US09742331B2

    公开(公告)日:2017-08-22

    申请号:US14856012

    申请日:2015-09-16

    CPC classification number: H02P9/007

    Abstract: A generation and distribution system includes an adjustable-speed prime mover and a doubly-fed asynchronous alternating-current (AC) generator driven by the prime mover and having a first poly-phase circuit, e.g., a stator, and a second poly-phase circuit, e.g., a rotor. The system further includes a first AC bus electrically coupled to the first poly-phase circuit configured to deliver AC power at a first AC voltage to multiple loads, and a second AC bus connected to the second poly-phase circuit configured to deliver AC power at a second AC voltage to another group of loads, the second AC voltage being lower than the first. The system includes a poly-phase transformer having first windings electrically coupled to the first AC bus and having second windings electrically coupled to the second AC bus, and a poly-phase AC-to-AC electronic converter circuit electrically coupled between the second poly-phase circuit and the second AC bus.

    Methods and systems for electrical DC generation
    7.
    发明授权
    Methods and systems for electrical DC generation 有权
    电气直流发电的方法和系统

    公开(公告)号:US09385645B2

    公开(公告)日:2016-07-05

    申请号:US14016021

    申请日:2013-08-30

    Abstract: An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation system includes an electrical machine, having a positive output terminal and a negative output terminal, a plurality of stator windings, a plurality of passive rectifiers connected to the plurality of stator windings, the plurality of passive rectifiers being connected in series to form an intermediate bus having a positive terminal and a negative terminal. The system also includes a DC-DC converter circuit having input terminals connected to the positive and negative terminals of the intermediate bus and having output terminals electrically isolated from the input terminals and connected in series with the intermediate bus. The DC-DC converter output voltage is adjusted to regulate torque of the electrical machine by adjusting stator current of the electrical machine.

    Abstract translation: 公开了一种电气直流发电系统。 根据一个方面,一种用于电气直流发电系统的系统包括具有正输出端子和负输出端子的电机,多个定子绕组,连接到多个定子绕组的多个无源整流器,多个 无源整流器串联连接以形成具有正极端子和负极端子的中间总线。 该系统还包括具有连接到中间总线的正极和负极端子的输入端子并且具有与输入端子电隔离并且与中间总线串联连接的输出端子的DC-DC转换器电路。 调整DC-DC转换器输出电压,通过调整电机的定子电流来调节电机的转矩。

    FAN ASSEMBLY FOR COOLING ELECTRIC MACHINE AND ELECTRIC MACHINE INCORPORATING SAME
    8.
    发明申请
    FAN ASSEMBLY FOR COOLING ELECTRIC MACHINE AND ELECTRIC MACHINE INCORPORATING SAME 审中-公开
    用于冷却电机的风扇组件和与之并入的电机

    公开(公告)号:US20150349609A1

    公开(公告)日:2015-12-03

    申请号:US14292150

    申请日:2014-05-30

    Abstract: The subject matter described herein includes a fan assembly for cooling an electric machine and an electric machine incorporating such a fan assembly. One exemplary fan assembly according to the subject matter described herein includes a first fan annulus for surrounding a portion of an electric machine. The fan assembly further includes a fan drive circuit for driving the first fan annulus separately from a drive mechanism of the electric machine. The first fan annulus is configured to be, when rotating to cool the electric machine, mechanically disconnected from a housing and a rotor of the electric machine and separated from the housing by radial gap.

    Abstract translation: 本文所述的主题包括用于冷却电机的风扇组件和包括这种风扇组件的电机。 根据本文所描述的主题的一个示例性风扇组件包括用于围绕电机的一部分的第一风扇环。 风扇组件还包括用于与电机的驱动机构分开地驱动第一风扇环的风扇驱动电路。 第一风扇环被配置为当旋转以冷却电机时,与电机的壳体和转子机械地断开并且通过径向间隙与壳体分离。

    Electrical generator with integrated hybrid rectification system comprising active and passive rectifiers connected in series
    9.
    发明授权
    Electrical generator with integrated hybrid rectification system comprising active and passive rectifiers connected in series 有权
    具有集成混合整流系统的发电机,包括主动和无源整流器串联连接

    公开(公告)号:US09571022B2

    公开(公告)日:2017-02-14

    申请号:US14016018

    申请日:2013-08-30

    CPC classification number: H02P9/008 H02K3/28 H02M7/10 H02M7/25 H02P25/22 H02P27/08

    Abstract: An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation includes an electrical machine having multiple stator windings and multiple rectifiers for connection to portions of the stator windings. At least one active rectifier and at least one passive rectifier are connected in series to form a DC bus having a positive terminal and a negative terminal, where the positive terminal of the DC bus is connected to a positive output terminal of the electrical machine and where the negative terminal of the DC bus is connected to a negative output terminal of the electrical machine. The at least one active rectifier is used to control a current flowing through the DC bus and/or an output voltage of the electrical machine.

    Abstract translation: 公开了一种电气直流发电系统。 根据一个方面,用于电气直流发电的系统包括具有多个定子绕组的电机和用于连接到定子绕组的一部分的多个整流器。 至少一个有源整流器和至少一个无源整流器串联连接以形成具有正端子和负端子的DC总线,其中DC总线的正端子连接到电机的正输出端子,并且其中 直流母线的负端子连接到电机的负极输出端子。 所述至少一个有源整流器用于控制流经所述DC总线的电流和/或所述电机的输出电压。

    Electric Power Generation and Distribution for Islanded or Weakly-Connected Systems
    10.
    发明申请
    Electric Power Generation and Distribution for Islanded or Weakly-Connected Systems 审中-公开
    用于岛屿或弱联系的发电和分配

    公开(公告)号:US20150349687A1

    公开(公告)日:2015-12-03

    申请号:US14291176

    申请日:2014-05-30

    Abstract: A dual-voltage power generation system includes a prime mover configured for adjustable speed operation and a doubly-fed induction generator driven by the prime mover and including a multi-phase stator winding and a multi-phase rotor winding. A first output terminal of the dual-voltage power generation system is electrically connected to the multi-phase stator winding, and a second output terminal is electrically connected to the multi-phase rotor winding. The dual-voltage power generation system further includes a first converter having an AC side connected to one of the multi-phase windings and an AC or DC side connected to one of the output terminals. The multi-phase stator winding has a different turns ratio than the multi-phase rotor winding and the first output terminal is electrically isolated from the second output terminal so that the generator has two isolated power supply outputs at different voltage levels in a first configuration.

    Abstract translation: 双电压发电系统包括配置用于可调速运行的原动机和由原动机驱动并包括多相定子绕组和多相转子绕组的双馈感应发电机。 双电压发电系统的第一输出端子电连接到多相定子绕组,并且第二输出端子电连接到多相转子绕组。 双电压发电系统还包括具有连接到多相绕组之一的AC侧的第一转换器和连接到输出端之一的AC或DC侧。 多相定子绕组具有与多相转子绕组不同的匝数比,并且第一输出端子与第二输出端子电隔离,使得发生器在第一配置中具有两个不同电压电平的隔离电源输出。

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