UNIT CONVERTER, POWER CONVERSION DEVICE, DC POWER TRANSMISSION SYSTEM, AND POWER CONVERSION DEVICE CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a unit converter of a power conversion device, generating a low voltage by using a current flowing in the power conversion device to supply power for driving the converter itself.;SOLUTION: A bidirectional chopper unit converter 108 of a power conversion device for converting DC into AC or AC into DC includes: a terminal 208 and a terminal 209 for use when making the converter itself incorporated into the power conversion device; a capacitor 203; a high-side switching element 201H and a low-side switching element 201L capable of outputting the voltage of the capacitor 203 between the terminals 208, 209; and a self power supply 206 for supplying power to drive the converter itself, by using a current flowing in the capacitor 203.;COPYRIGHT: (C)2014,JPO&INPIT