APPARATUS AND METHOD FOR CONTROLLING MODULE SWITCHING OF POWER CONVERTING SYSTEM

摘要

A technology is disclosed for controlling switching of power converters included in a power converting system. Phase angles are allocated to a plurality of sub-units corresponding to the power converters, and the respective sub-units create local switching carriers based on the allocated phase angles. The sub-units compare a reference AC voltage with the local switching carriers, and switch the power converters according to the result of the comparison.

主权项

1. An apparatus for converting power comprising:
a central controller that generates a reference AC voltage; and a plurality of sub-units, wherein the central controller allocates phase angles to the respective sub-units, and the respective sub-units individually create local switching carriers based on the allocated phase angles, and controls switching of power converters corresponding to the respective sub-units according to a result of a comparison of the individually created local switching carriers and the reference AC voltage.