Patent ID: 11070145

Abstract:
Provided is a power conversion control method including: calculating a pre-switching pulse time being a time from a first conductive state switching timing being a conductive state switching timing of a second bridge circuit immediately before a predetermined carrier wave switching timing, to the carrier wave switching timing; calculating a post-switching pulse time being a time from the carrier wave switching timing to a second conductive state switching timing being an initial conductive state switching timing after the carrier wave switching timing; when a conductive state of the second bridge circuit is not switched at the carrier wave switching timing, determining that switching of the carrier wave is disabled when the sum of the pre-switching pulse time and the post-switching pulse time is less than a predetermined pulse time sum threshold value; and when the conductive state of the second bridge circuit is switched at the carrier wave switching timing, determining that the switching of the carrier wave is disabled when the pre-switching pulse time or the post-switching pulse time is less than a predetermined pulse time threshold value.