Motor control apparatus and control method
    8.
    发明授权
    Motor control apparatus and control method 失效
    电机控制装置及控制方法

    公开(公告)号:US06515446B1

    公开(公告)日:2003-02-04

    申请号:US09958149

    申请日:2001-10-05

    IPC分类号: H02P146

    摘要: The technique of the present invention sets a torque voltage to be applied to a motor in response to a required torque and adjusts the duty of an inverter to ensure application of the torque voltage according to the observed voltage of a battery. In a motor controller constructed to attain such control, before a start-up of normal operation of the motor, a fixed duty is set for switching the inverter to apply a voltage to the motor. The value of electric current running in response to the applied voltage is measured. The mapping of the value of electric current to the source voltage in the case of switching the inverter at a fixed duty is stored in advance in the form of a table. The procedure reads the true value of the source voltage from the table and thereby specifies an offset error occurring in a voltage sensor of the battery. The procedure then corrects the observed voltage of the battery and adequately regulates the torque voltage.

    摘要翻译: 本发明的技术根据所需的转矩设定施加到电动机的转矩电压,并调整逆变器的占空比,以确保根据电池的观测电压施加转矩电压。 在实现这种控制的电动机控制器中,在电动机正常运行之前,设定用于切换逆变器以向电动机施加电压的固定负荷。 测量响应于施加电压的电流运行的值。 预先以表格的形式存储在将变频器以固定的工作状态切换的情况下的电流值与电源电压的映射。 该过程从表中读取源电压的真实值,从而指定在电池的电压传感器中发生的偏移误差。 然后,该过程校正观察到的电池电压并充分调节转矩电压。

    Electrical angle detecting apparatus and method, and motor control apparatus
    9.
    发明授权
    Electrical angle detecting apparatus and method, and motor control apparatus 有权
    电气角度检测装置及方法以及电动机控制装置

    公开(公告)号:US06188196B1

    公开(公告)日:2001-02-13

    申请号:US09453693

    申请日:1999-12-03

    IPC分类号: H02P736

    摘要: An electrical angle detecting apparatus determines an electrical angle &thgr; from voltages Vd, Vq, and currents Id, Iq along a d-axis and a q-axis of a synchronous motor, by using the following expressions: &thgr;=&thgr;(n−1)+k1×&Dgr;Id+k2×&Sgr;(&Dgr;Id) &Dgr;Id=Id(n)−Id(n−1)−t(Vd−R×Id(n−1)+&ohgr;×Lq×Iq(n−1))/Ld; &ohgr;=(k1×&Dgr;Id+k2×&Sgr;(&Dgr;Id))/t where (n−1) indicates a value of each variable at the previous timing; (n) indicates a value at the given timing; R is the resistance of a coil; t is the determination executing period; and k1, k2 are coefficients. This determination makes it easier to set appropriate gains, so that precision improves. Furthermore, the amount of determination reduces, and the processing time shortens.

    摘要翻译: 电角度检测装置通过使用以下表达式来确定电压Vd,Vq以及沿着同步电动机的d轴和q轴的电流Id,Iq的电角度θ,其中(n-1)表示 每个变量在上一个时间的值; (n)表示给定时刻的值; R是线圈的电阻; t是确定执行期; 而k1,k2是系数。 这个确定使得更容易设置适当的增益,从而提高精度。 此外,确定量减少,处理时间缩短。