公开(公告)号：US09294029B2

公开(公告)日：2016-03-22

申请号：US13401081

申请日：2012-02-21

Applicant: Matti Veijanen

Inventor： Matti Veijanen

IPC: H02P6/06 ,  H02P1/00 ,  G05B11/36 ,  H02P21/13 ,  H02P21/00 ,  H02P21/14

CPC classification number: H02P21/13 ,  H02P21/141 ,  H02P21/18 ,  H02P21/28

Abstract: A method of estimating a rotor angle of a synchronous reluctance motor, which includes a stator and a rotor. First, a stator flux and a stator current are determined. Two orthogonal stator flux components in a stator reference frame are calculated from the stator flux. Two orthogonal stator current components in the stator reference frame are calculated from the stator current. A rotor orientation vector is then calculated using a known rotor direct or quadrature axis inductance component, the stator flux components, and the stator current components. The rotor orientation is estimated on the basis of the rotor orientation vector.

Abstract translation: 一种估计包括定子和转子的同步磁阻电机的转子角度的方法。 首先，确定定子磁通和定子电流。 从定子磁通量计算定子参考系中的两个正交定子磁通分量。 从定子电流计算定子参考系中的两个正交定子电流分量。 然后使用已知的转子直接或正交轴电感分量，定子磁通分量和定子电流分量来计算转子取向向量。 基于转子方向矢量来估计转子取向。

公开(公告)号：US09188648B2

公开(公告)日：2015-11-17

申请号：US13297051

申请日：2011-11-15

Applicant: Matti Eskola ,  Matti Veijanen

Inventor： Matti Eskola ,  Matti Veijanen

IPC: G06F17/40 ,  G06F19/00 ,  G01R31/34 ,  G01R27/26

CPC classification number: G01R31/34 ,  G01R27/2611 ,  G06F17/40 ,  G06F19/00 ,  H02P21/14

Abstract: A method and an arrangement of determining inductances of a synchronous reluctance machine are provided. The method includes supplying a voltage pulse in the quadrature-axis or direct-axis direction of rotor, sampling currents generated by the supplied voltage pulse, and calculating values of flux at the sampling instants from the value of the supplied voltage pulse, the sampled current values and a value of the stator resistance. The method also includes calculating synchronous inductance of the machine by dividing the calculated flux values by the corresponding sampled currents, and/or calculating transient inductance of the machine as a derivative of the flux with respect to current, and storing the calculated values as a function of current.

Abstract translation: 提供了一种确定同步磁阻电机的电感的方法和装置。 该方法包括：提供转子的正交轴或直轴方向的电压脉冲，由所提供的电压脉冲产生的采样电流，以及根据所提供的电压脉冲的值，采样电流的值来计算采样时刻的磁通值 值和定子电阻的值。 该方法还包括通过将计算的磁通值除以相应的采样电流和/或计算机器的瞬态电感作为磁通量相对于电流的导数来计算机器的同步电感，并将计算的值存储为函数 的当前。

公开(公告)号：US20120123715A1

公开(公告)日：2012-05-17

申请号：US13297051

申请日：2011-11-15

Applicant: Matti Eskola ,  Matti Veijanen

Inventor： Matti Eskola ,  Matti Veijanen

IPC: G01R27/00 ,  G06F19/00

CPC classification number: G01R31/34 ,  G01R27/2611 ,  G06F17/40 ,  G06F19/00 ,  H02P21/14

Abstract: A method and an arrangement of determining inductances of a synchronous reluctance machine are provided. The method includes supplying a voltage pulse in the quadrature-axis or direct-axis direction of rotor, sampling currents generated by the supplied voltage pulse, and calculating values of flux at the sampling instants from the value of the supplied voltage pulse, the sampled current values and a value of the stator resistance. The method also includes calculating synchronous inductance of the machine by dividing the calculated flux values by the corresponding sampled currents, and/or calculating transient inductance of the machine as a derivative of the flux with respect to current, and storing the calculated values as a function of current.

Abstract translation: 提供了一种确定同步磁阻电机的电感的方法和装置。 该方法包括：提供转子的正交轴或直轴方向的电压脉冲，由所提供的电压脉冲产生的采样电流，以及根据所提供的电压脉冲的值，采样电流的值来计算采样时刻的磁通值 值和定子电阻的值。 该方法还包括通过将计算的磁通值除以相应的采样电流和/或计算机器的瞬态电感作为磁通量相对于电流的导数来计算机器的同步电感，并将计算的值存储为函数 的当前。