| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion control device that reduces a switching loss.SOLUTION: The power conversion control device for controlling a power conversion device (power conversion section 2) for converting DC power to AC power, on the basis of a modulation wave and a carrier wave including a triangular wave or sawtooth wave includes: a modulation wave generation section 6 for generating the modulation wave on the basis of a modulation factor calculated on the basis of a DC voltage supplied to the power conversion device and an output voltage command; a carrier wave generation section 5 for generating as the carrier wave a signal lower than the modulation wave in a first, continuous interval including a timing corresponding to a peak position of the modulation wave and a part of a crossing occurrence interval where the modulation wave crosses the triangular wave or sawtooth wave; and a switching signal generation section (comparison section 7) for comparing the modulation wave with the carrier wave to generate a switching signal to control the power conversion device. |
