A position control device includes a subtracter for subtracting a q-axis current detection value iq from a q-axis current command value iq* to output a q-axis current error iq, an adder for adding a q-axis current compensation amount iqc* for compensating for response timing of q-axis current to the q-axis current error iq, a q-axis current controller for amplifying an output of the adder by I-P control to calculate a q-axis voltage error vq and calculating a q-axis voltage command value vq* on the basis of the q-axis voltage error vq, and a second adder for adding a q-axis voltage feedforward amount vqf corresponding to a time derivative value s.Math.iq of the q-axis current to the q-axis voltage command value vq* to calculate a final q-axis voltage command value.

A position control device includes a subtracter for subtracting a q-axis current detection value iq from a q-axis current command value iq* to output a q-axis current error iq, an adder for adding a q-axis current compensation amount iqc* for compensating for response timing of q-axis current to the q-axis current error iq, a q-axis current controller for amplifying an output of the adder by I-P control to calculate a q-axis voltage error vq and calculating a q-axis voltage command value vq* on the basis of the q-axis voltage error vq, and a second adder for adding a q-axis voltage feedforward amount vqf corresponding to a time derivative value s.Math.iq of the q-axis current to the q-axis voltage command value vq* to calculate a final q-axis voltage command value.