METHOD AND APPARATUS FOR ON-LINE ESTIMATION OF INITIAL POSITION OF SURFACE PERMANENT MAGNET ELECTRIC MACHINE

    公开(公告)号:US20180375453A1

    公开(公告)日:2018-12-27

    申请号:US16065836

    申请日:2015-12-23

    IPC分类号: H02P21/18 H02P21/34 H02P21/06

    摘要: The present invention relates to a method and apparatus for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed. The method (100) for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed comprises: injecting a high-frequency pulsating voltage signal; acquiring a d-axis high-frequency current signal responding to the high-frequency pulsating voltage signal; and estimating an initial position of the surface permanent magnet electric machine on the basis of a second harmonic of the d-axis high-frequency current signal. According to the present invention, the apparatus (200) for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first is speed is also provided, the apparatus comprising a voltage injection unit configured to inject a high-frequency pulsating voltage signal, a current acquisition unit configured to acquire a d-axis high-frequency current signal responding to the high-frequency pulsating voltage signal, and an analysis unit configured to analyse a second harmonic of the d-axis high-frequency current signal so as to estimate an initial position of the surface permanent magnet electric machine.

    Methods for adjusting the power output of a wind turbine
    2.
    发明授权
    Methods for adjusting the power output of a wind turbine 有权
    调整风力发电机功率输出的方法

    公开(公告)号:US09127642B2

    公开(公告)日:2015-09-08

    申请号:US14006976

    申请日:2011-03-29

    摘要: A method for adjusting the power output of a wind turbine (10) based on component operating temperatures is disclosed. The method may generally include receiving a signal associated with an operating temperature of the wind turbine (402), determining a desired power output range of the wind turbine at the operating temperature (404), comparing a power output of the wind turbine to the desired power output range (406) and adjusting the power output when the power output is outside the desired power output range (408).

    摘要翻译: 公开了一种基于组件工作温度来调节风力涡轮机(10)的功率输出的方法。 该方法通常可以包括接收与风力涡轮机(402)的工作温度相关联的信号,在工作温度下确定风力涡轮机的期望功率输出范围(404),将风力涡轮机的功率输出与期望的 功率输出范围(406),并且当功率输出超出所需功率输出范围(408)时调节功率输出。

    Operating a wind turbine at motor over-temperature conditions
    3.
    发明授权
    Operating a wind turbine at motor over-temperature conditions 有权
    在电机过热条件下运行风力发电机

    公开(公告)号:US07780412B2

    公开(公告)日:2010-08-24

    申请号:US12473714

    申请日:2009-05-28

    IPC分类号: F03D7/02

    摘要: Methods and apparatus for continuing wind turbine operation when normal wind turbine motor control is unavailable due to overheating of one or more wind turbine control motors. Technical effects of the present invention include providing an effective control strategy continuing operation during over-heating of a wind turbine control motor, such as a pitch control motor and a yaw control motor.

    摘要翻译: 由于一个或多个风力涡轮机控制电机的过热,正常的风力涡轮机电动机控制不可用于持续风力涡轮机运行的方法和装置。 本发明的技术效果包括在诸如俯仰控制电动机和偏航控制电动机的风力涡轮机控制电动机的过热期间提供有效的控制策略继续操作。

    Method and apparatus for on-line estimation of initial position of surface permanent magnet electric machine

    公开(公告)号:US10601354B2

    公开(公告)日:2020-03-24

    申请号:US16065836

    申请日:2015-12-23

    摘要: The present invention relates to a method and apparatus for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed. The method (100) for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed comprises: injecting a high-frequency pulsating voltage signal; acquiring a d-axis high-frequency current signal responding to the high-frequency pulsating voltage signal; and estimating an initial position of the surface permanent magnet electric machine on the basis of a second harmonic of the d-axis high-frequency current signal. According to the present invention, the apparatus (200) for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed is also provided, the apparatus comprising a voltage injection unit configured to inject a high-frequency pulsating voltage signal, a current acquisition unit configured to acquire a d-axis high-frequency current signal responding to the high-frequency pulsating voltage signal, and an analysis unit configured to analyse a second harmonic of the d-axis high-frequency current signal so as to estimate an initial position of the surface permanent magnet electric machine.

    OPERATING A WIND TURBINE AT MOTOR OVER-TEMPERATURE CONDITIONS
    5.
    发明申请
    OPERATING A WIND TURBINE AT MOTOR OVER-TEMPERATURE CONDITIONS 有权
    在电机超温条件下运行风力涡轮机

    公开(公告)号:US20100143116A1

    公开(公告)日:2010-06-10

    申请号:US12473714

    申请日:2009-05-28

    IPC分类号: F03D7/02

    摘要: Methods and apparatus for continuing wind turbine operation when normal wind turbine motor control is unavailable due to overheating of one or more wind turbine control motors. Technical effects of the present invention include providing an effective control strategy continuing operation during over-heating of a wind turbine control motor, such as a pitch control motor and a yaw control motor.

    摘要翻译: 由于一个或多个风力涡轮机控制电机的过热,正常的风力涡轮机电动机控制不可用于持续风力涡轮机运行的方法和装置。 本发明的技术效果包括在诸如俯仰控制电动机和偏航控制电动机的风力涡轮机控制电动机的过热期间提供有效的控制策略继续操作。

    METHODS FOR ADJUSTING THE POWER OUTPUT OF A WIND TURBINE
    6.
    发明申请
    METHODS FOR ADJUSTING THE POWER OUTPUT OF A WIND TURBINE 有权
    调整风力发电机功率的方法

    公开(公告)号:US20140015252A1

    公开(公告)日:2014-01-16

    申请号:US14006976

    申请日:2011-03-29

    IPC分类号: F03D7/00

    摘要: A method for adjusting the power output of a wind turbine (10) based on component operating temperatures is disclosed. The method may generally include receiving a signal associated with an operating temperature of the wind turbine (402), determining a desired power output range of the wind turbine at the operating temperature (404), comparing a power output of the wind turbine to the desired power output range (406) and adjusting the power output when the power output is outside the desired power output range (408).

    摘要翻译: 公开了一种基于组件工作温度来调节风力涡轮机(10)的功率输出的方法。 该方法通常可以包括接收与风力涡轮机(402)的工作温度相关联的信号,在工作温度下确定风力涡轮机的期望功率输出范围(404),将风力涡轮机的功率输出与期望的 功率输出范围(406),并且当功率输出超出所需功率输出范围(408)时调节功率输出。