Patent ID: 9160271
Filing Date: 2015-10-13
Classification: B60L,G05B,H02M,H02P,Y02T

Abstract:
1. A power conversion device, comprising: a converter for converting a single-phase AC voltage to a DC voltage through rectification; an inverter for feeding a motor by converting the DC voltage as an output of the converter to an AC voltage; a current command value generation unit for outputting a current command value for the motor according to a torque command value; a frequency command value generation unit for outputting a frequency command value of the AC voltage for the motor according to a speed signal of the motor; a phase angle command value generation unit for calculating a phase angle command value on the basis of speed information or axis position information of the motor; a voltage command value generation unit for generating a voltage command value to the inverter using the current command value, the frequency command value, and the phase angle command value; and a compensation unit for adding a compensation value to or subtracting the compensation value from at least one of the torque command value, the current command value, the voltage command value, the frequency command value, and the phase angle command value, the compensation unit includes: