Abstract: Disclosed are a phase current control device for a DAB converter and a method therefor. The device includes a DAB converter having at least one leg including a switching element, a phase current measuring unit for measuring a phase current for each of the legs, and a phase current phase controller for performing phase control by setting one of the phase currents of the respective legs as a reference phase current, comparing each of the other phase currents with the reference phase current to derive a phase difference for each of the phase currents, and compensating each of the phase currents for a corresponding one of the phase differences.

Abstract: The present invention relates to an apparatus for controlling an output voltage for a single-type converter and a method therefor, the apparatus including: a power input/output unit connected in parallel to both poles of the single-type converter, respectively, thereby receiving and outputting output voltages, respectively; an output voltage and current measurement unit measuring output currents and the output voltages output from the power input/output unit; a controller performing a current limit control for a protection coordination for a first pole and performing a voltage control for a second pole following a checking of a state of the first pole of the both poles of the single-type converter using the measured output currents; a switching unit being switched according to a control performed on the both poles; and a power transfer unit transferring the output voltages of the single-type converter according to switching of the switching unit.

Abstract: The present invention relates to an apparatus for controlling an output voltage for a single-type converter and a method therefor, the apparatus including: a power input/output unit connected in parallel to both poles of the single-type converter, respectively, thereby receiving and outputting output voltages, respectively; an output voltage and current measurement unit measuring output currents and the output voltages output from the power input/output unit; a controller performing a current limit control for a protection coordination for a first pole and performing a voltage control for a second pole following a checking of a state of the first pole of the both poles of the single-type converter using the measured output currents; a switching unit being switched according to a control performed on the both poles; and a power transfer unit transferring the output voltages of the single-type converter according to switching of the switching unit.