APPARATUS AND METHOD FOR CONTROLLING VOLTAGE OF THREE-PHASE INVERTER FOR STAND-ALONE MICROGRID

摘要

Provided are an apparatus and a method for controlling a voltage of a three-phase inverter for a stand-alone microgrid. According to an embodiment of the present invention, the apparatus for controlling a voltage of a three-phase inverter comprises: a transformation unit which transforms a three-phase load voltage of the three-phase inverter in a d-q axis; a harmonic wave compensation control unit which compensates for an even harmonic component of the three-phase load voltage transformed in the d-q axis and generates a first signal having the compensated even harmonic component; a fundamental wave voltage compensation control unit which compensates for a fundamental wave voltage of the three-phase load voltage transformed in the d-q axis and generates a second signal having the compensated fundamental wave voltage; and a control signal generation unit which receives the first signal and the second signal and generates a control signal for controlling the load voltage of the three-phase inverter based on the first signal and the second signal.