Methods and apparatuses for compensating for friction torques of permanent magnet synchronous motors
    10.
    发明授权
    Methods and apparatuses for compensating for friction torques of permanent magnet synchronous motors 有权
    用于补偿永磁同步电机的摩擦转矩的方法和装置

    公开(公告)号:US09350279B2

    公开(公告)日:2016-05-24

    申请号:US14309135

    申请日:2014-06-19

    摘要: A method of compensating for a friction torque of a permanent magnet synchronous motor may include: receiving input of a motor current and a rotor speed of the permanent magnet synchronous motor; estimating a motor torque based on the input motor current; acquiring a first friction torque corresponding to the input rotor speed and the estimated motor torque by using a lookup table of friction torques; compensating for a second friction torque of the permanent magnet synchronous motor based on the first friction torque, wherein the compensating is in response to a first torque command input to control driving of the permanent magnet synchronous motor and outputs a second torque command that compensates for the second friction torque; and/or controlling the driving of the permanent magnet synchronous motor based on the second torque command.

    摘要翻译: 补偿永磁同步电动机的摩擦转矩的方法可以包括:接收电动机电流的输入和永磁同步电动机的转子转速; 基于输入电动机电流估计电动机转矩; 通过使用摩擦转矩查找表获取与输入转子速度和估计的电动机转矩相对应的第一摩擦转矩; 基于所述第一摩擦转矩补偿所述永磁同步电动机的第二摩擦转矩,其中所述补偿响应于用于控制所述永磁同步电动机的驱动的第一转矩指令输入,并输出补偿所述永磁同步电动机的第二转矩指令, 第二摩擦转矩; 和/或基于第二转矩指令控制永磁同步电动机的驱动。