Inverter Control Device
DRIVE
August 4, 2022
An inverter control device includes a current control unit that outputs a voltage commands (Vd*, Vq*), a modulation wave control unit that generates a modulation wave based on the voltage commands (Vd*, Vq*), a pulse generation unit that generates a PWM pulse for controlling an inverter using a modulation wave and a carrier wave of a predetermined frequency, and a pulse shift unit that corrects the phase of the PWM pulse such that the PWM pulse is output in a phase corresponding to a harmonic of a predetermined order of the modulation wave in the near-zero-cross region including the zero-cross point at which the modulation wave changes across 0.
Discussion in the ATmosphere