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    Wind turbines and methods
    1.
    发明授权
    Wind turbines and methods 有权

    公开(公告)号：US10823148B2

    公开(公告)日：2020-11-03

    申请号：US16520469

    申请日：2019-07-24

    Applicant: General Electric Renovables España, S.L.

    Inventor： Javier Cilla Garcia ,  Kevin Schoenleber ,  Sergi Rates Palau

    IPC: F03D9/25 ,  H02P9/34 ,  F03D7/02 ,  H02P101/15

    Abstract: A wind turbine is provided. The wind turbine comprises: a generator (162), one or more power converters (20) arranged between the generator and a point of connection to a main transformer (5), and one or more wind turbine electrical components (8, 9, 10). The main transformer (5) is configured to connect a busbar (60) to an auxiliary wind turbine transformer, wherein the busbar is configured to receive electrical power from an electrical grid with a main voltage. The wind turbine electrical components are configured to be connected to the auxiliary wind turbine transformer (6), wherein a selection of the wind turbine electrical components is further configured to be connected to the busbar through a service voltage transformer (7) when the main transformer (5) is disconnected from the busbar. Systems comprising such wind turbines are also provided. Methods for connecting a wind turbine main transformer to a grid are also provided.

    Modulation Control of Power Generation System
    2.
    发明申请
    Modulation Control of Power Generation System 有权
    发电系统调制控制

    公开(公告)号：US20100072959A1

    公开(公告)日：2010-03-25

    申请号：US12504341

    申请日：2009-07-16

    Applicant: Kevin Allan DOOLEY

    Inventor： Kevin Allan DOOLEY

    IPC: H02P9/34

    CPC classification number: H02P9/34 ,  H02P2101/10 ,  H02P2101/30

    Abstract: Methods and apparatuses are disclosed for producing current with a desired output frequency from one or more fixed or variable speed alternators by varying a saturation level of a portion of the alternator(s) based on a output frequency desired, and preferably then rectifying the output to produce a desired electrical output which may be provided as direct current or alternating current to a suitable load.

    Abstract translation: 公开了用于通过基于期望的输出频率改变交流发电机的一部分的饱和水平来从一个或多个固定或变速交流发电机产生具有所需输出频率的电流的方法和装置，并且优选地将输出整流到 产生期望的电输出，其可以作为直流电或交流电提供给合适的负载。

    Control system for switched reluctance motor operating as a power generator
    3.
    发明授权
    Control system for switched reluctance motor operating as a power generator 失效
    作为发电机运行的开关磁阻电机的控制系统

    公开(公告)号：US5012172A

    公开(公告)日：1991-04-30

    申请号：US351491

    申请日：1989-05-09

    Applicant: James W. Sember

    Inventor： James W. Sember

    IPC: H02P6/24 ,  H02P3/06 ,  H02P9/34 ,  H02P23/06 ,  H02P25/08

    CPC classification number: H02P23/06 ,  H02P3/065 ,  H02P9/34

    Abstract: A method for operating a multi-phase switched reluctance motor is a generator mode includes gating switches connected in series with selected ones of the phase windings of the motor into conduction to establish current flow in a selected one of the windings. The switches are thereafter disabled and current is forced to commutate into flyback diodes whereby the current is returned to an associated DC bus. The instant at which the conducting switches are gated out of conduction is selected or measured in angular displacement between an associated stator pole and a corresponding rotor pole by establishing a preselected magnitude of current such that when the current in the winding reaches that magnitude, the switches are disabled. The voltage at the DC bus is regulated during generator mode operation by adjusting the phase angle measured between a stator pole and a corresponding rotor pole at which the switches are gated into conduction. The voltage is alternatively regulated at the DC bus by adjusting the phase angle at which the switches are disabled if the generated current does not reach the preselected magnitude. Overcurrent protection is included to reduce the turn-on angle if the current in the DC bus exceeds another preselected magnitude.

    Pulse duty control system
    7.
    发明授权
    Pulse duty control system 失效
    脉冲占空控制系统

    公开(公告)号：US4320308A

    公开(公告)日：1982-03-16

    申请号：US182675

    申请日：1980-08-29

    Applicant: Shinichiro Iwasaki

    Inventor： Shinichiro Iwasaki

    IPC: H03K5/04 ,  H02M7/217 ,  H02P9/34 ,  H03K3/017 ,  H03K3/00 ,  H02J7/00

    CPC classification number: H02M7/217 ,  H03K3/017

    Abstract: A pulse duty control system comprises a pulse duty controlling element including a core made of an amorphous, magnetically soft material having a first and a second coil disposed thereon. A first set of pulses are applied to one end of the first coil while a second set of pulses, which are phase displaced by 180.degree. from the first set of pulses, are applied to one end of the second coil. The other end of the first coil is connected to an output terminal while the other end of the second coil is connected to a current controlling transistor, the base of which is connected to control circuit means. An output pulse, which is developed at the other end of the first coil, has a rising edge which lags behind the rising edge of a pulse of the first set of pulses by a time delay corresponding to the degree of conduction of the transistor which in turn depends on an output voltage from the control circuit means. The output pulse has a falling edge which is substantially synchronized with that of the pulse in the first set of pulses.

    Abstract translation: 脉冲占空比控制系统包括脉冲占空比控制元件，该脉冲占空比控制元件包括由非晶体，软磁性材料制成的芯体，其上设置有第一和第二线圈。 将第一组脉冲施加到第一线圈的一端，而从第一组脉冲相位偏移180°的第二组脉冲被施加到第二线圈的一端。 第一线圈的另一端连接到输出端子，而第二线圈的另一端连接到电流控制晶体管，电流控制晶体管的基极连接到控制电路装置。 在第一线圈的另一端产生的输出脉冲具有一个上升沿，该上升沿比第一组脉冲的脉冲的上升沿延迟一个对应于晶体管的导通程度的时间延迟 取决于来自控制电路装置的输出电压。 输出脉冲具有与第一组脉冲中的脉冲基本上同步的下降沿。

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