Inverter control
    1.
    发明公开
    Inverter control 失效
    Wechselrichtersteuerung

    公开(公告)号:EP0698962A1

    公开(公告)日:1996-02-28

    申请号:EP95305880.7

    申请日:1995-08-23

    IPC分类号: H02P5/408 G01P3/48

    CPC分类号: G01P3/48 H02P23/08

    摘要: An inverter control apparatus for controlling a command frequency (f1) and a command voltage (V1) to be supplied to an inverter (2) which then supplies AC power of a desired frequency determined by the command frequency and the command voltage to an induction motor (1). The inverter control apparatus receives a requested rotational speed (fref) of the motor and an actual rotational speed (f') obtained by detecting a frequency of a fluctuation component of a drive current supplied from the inverter (2) to the induction motor (1). A difference between the requested rotational speed and the actual rotational speed represents a slip amount, which is added to the requested rotational speed to produce a command frequency. The command voltage is set to a voltage when the monitored drive current is at a minimum value.

    摘要翻译: 一种逆变器控制装置,用于控制提供给逆变器(2)的指令频率(f1)和指令电压(V1),逆变器(2)将由指令频率和指令电压确定的期望频率的AC电力提供给感应电动机 (1)。 逆变器控制装置接收电动机的请求转速(fref)和通过检测从逆变器(2)向感应电动机(1)提供的驱动电流的变动分量的频率而获得的实际转速(f') )。 所请求的转速与实际转速之间的差值表示一个滑移量,它被加到所要求的转速上以产生一个指令频率。 当监视的驱动电流处于最小值时,指令电压被设置为电压。