Motor control apparatus
地域：
Seoul
摘要
A motor control apparatus according to one embodiment of the present invention comprises: a current controller for generating a voltage command signal on the basis of a torque command for driving a motor and a fundamental wave current of the motor; a high frequency voltage generator for generating a high frequency voltage signal for injection into the voltage command signal; an inverter for applying a voltage to the motor on the basis of the voltage command signal and the high frequency voltage signal; an angle estimator for generating an estimated angle of a rotor of the motor on an estimated coordinate system on the basis of a current signal of the motor; and a compensator for adding a first compensation signal (icomp) to the current signal (isig), wherein the first compensation signal (icomp) may be related to the torque command and the estimated angle.
說明書
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In Equations 1 and 2, the angular error ({tilde over (θ)}r) is a difference of a position (θr) of the rotor and an estimated position (an estimated angle, {circumflex over (θ)}r) of the rotor and may be defined as in Equation 3 below. {tilde over (θ)}r=θr?{circumflex over (θ)}r ??[Equation 3]
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