Patent ID: 9614375
Date: 2017-04-04
CPC Classifications: H02J,H02M,Y02B,Y02E

Claim:
1. A power conversion apparatus comprising: a converter unit to convert a direct current (DC) voltage from a solar cell module, the converter unit comprising a plurality of interleaving converters; an input voltage detection unit to detect a voltage input to the converter unit; an input current detection unit to detect a current input to the converter unit; a DC end voltage detection unit to detect a voltage output from the converter unit; and a controller to control the converter unit, wherein the controller changes switching periods of the interleaving converters and changes phase differences between the interleaving converters during operation sections of the interleaving converters, in response to a change of the switching periods of the interleaving converters, and wherein, when the switching periods of the interleaving converters are increased, the controller increases an overlapping region between the operation sections of the interleaving converters.