Rotor angular position control of single phase permanent magnet motor
    1.
    发明公开
    Rotor angular position control of single phase permanent magnet motor 失效
    单相永磁电机的转子角位置控制

    公开(公告)号:EP0820140A3

    公开(公告)日:1998-04-01

    申请号:EP97305231.9

    申请日:1997-07-15

    IPC分类号: H02K29/12 H02P6/16 H02P6/22

    摘要: A single phase permanent magnet motor includes a rotor (10), a stator (12), and a quadrature axis winding (22) positioned out-of-phase from a main winding (20) of the stator for generating an output signal representative of rotor angular position. An integrator can be coupled to the quadrature axis winding for phase retarding the output signal, and a comparator can be coupled to the integrator for detecting zero crossings of the phase retarded output signal to provide a commutation signal. The quadrature axis winding can be positioned about ninety electrical degrees out-of-phase from the main winding of the stator, and the integrator can be adapted to phase retard the output signal by a number of degrees which decreases as a speed of the motor increases. At low speeds the phase retard is preferably at about ninety degrees so that the phase retarded signal becomes in-phase with the main stator winding back EMF voltage. The motor may further include a rectifier coupled to the quadrature axis winding for rectifying the output signal, and a lowpass filter for filtering the rectified output signal to provide a signal proportional to velocity. Also the single phase motor is commutated for maximum torque production.

    摘要翻译: 单相永磁电动机包括定子(10),定子(12)和与定子的主绕组(20)异相定位的正交轴绕组(22),用于产生代表 转子角度位置。 积分器可以耦合到正交轴线绕组以用于相位延迟输出信号,并且比较器可以耦合到积分器用于检测相位延迟输出信号的过零点以提供换向信号。 正交轴线圈可以定位在与定子的主绕组大约90度电角度的相位之外,并且积分器可以适于将输出信号相位延迟若干度,随着马达速度的增加 。 在低速时,相位延迟优选为约90度,使得相位延迟信号与主定子绕组反电动势电压同相。 电机还可以包括耦合到正交轴线圈的整流器,用于整流输出信号,以及低通滤波器,用于对经整流的输出信号进行滤波以提供与速度成比例的信号。 单相电机也可以换向,以获得最大的扭矩。

    Rotor angular position control of single phase permanent magnet motor
    3.
    发明公开
    Rotor angular position control of single phase permanent magnet motor 失效
    Steuerung der Rotorwinkelposition eine einphasigen永磁电机

    公开(公告)号:EP0820140A2

    公开(公告)日:1998-01-21

    申请号:EP97305231.9

    申请日:1997-07-15

    IPC分类号: H02K29/12 H02P6/16 H02P6/22

    摘要: A single phase permanent magnet motor includes a rotor (10), a stator (12), and a quadrature axis winding (22) positioned out-of-phase from a main winding (20) of the stator for generating an output signal representative of rotor angular position. An integrator can be coupled to the quadrature axis winding for phase retarding the output signal, and a comparator can be coupled to the integrator for detecting zero crossings of the phase retarded output signal to provide a commutation signal. The quadrature axis winding can be positioned about ninety electrical degrees out-of-phase from the main winding of the stator, and the integrator can be adapted to phase retard the output signal by a number of degrees which decreases as a speed of the motor increases. At low speeds the phase retard is preferably at about ninety degrees so that the phase retarded signal becomes in-phase with the main stator winding back EMF voltage. The motor may further include a rectifier coupled to the quadrature axis winding for rectifying the output signal, and a lowpass filter for filtering the rectified output signal to provide a signal proportional to velocity. Also the single phase motor is commutated for maximum torque production.

    摘要翻译: 单相永磁电动机包括转子(10),定子(12)和与定子的主绕组(20)异相位置的正交绕组(22),用于产生代表 转子角位置。 积分器可以耦合到正交轴线圈,用于相位延迟输出信号,并且比较器可以耦合到积分器,用于检测相位延迟输出信号的过零点以提供换向信号。 正交绕组可以定位在与定子的主绕组相差大约九十度的位置上,并且积分器可以适合于将输出信号相位延迟多少度,随着电机速度的增加而减小 。 在低速时,相位延迟优选为大约九十度,使得相位延迟信号与主定子回绕EMF电压同相。 马达还可以包括耦合到正交轴线圈的整流器,用于整流输出信号;以及低通滤波器,用于对整流输出信号进行滤波以提供与速度成比例的信号。 此外,单相电动机被换向以实现最大扭矩产生。