Power Conversion Equipment

Abstract

In a power conversion device that converts a DC voltage to an AC voltage by turning a semiconductor switching element (Q) on and off, a drive controller (10) that generates a gate signal for driving the semiconductor switching element (Q) on and off is configured to generate a first command which is a voltage command for a target voltage of the AC voltage, generate a triangular wave carrier signal whose frequency is an even multiple of a fundamental wave component of the first command, and generate the gate signal from the carrier signal and a second command composed of a harmonic signal including at least one odd-multiple harmonic signal whose frequency is an odd-multiple and one even-multiple harmonic signal whose frequency is an even multiple of the fundamental wave component of the first command, and the first command.

Images