APPARATUS AND METHOD FOR PREVENTING OVERCURRENT IN GRID-FORMING INVERTER

An embodiment provides an apparatus and method for preventing overcurrent in a grid-forming inverter. An apparatus according to the embodiment includes: a power calculation unit for measuring active power and reactive power for a connection point in real time; a second droop unit for determining a voltage setting value of a grid-forming inverter using the measured reactive power; and a first droop unit for determining a phase angle of the grid-forming inverter so that the measured active power follows a pre-specified active power limit value when the active power limit value is lower than or equal to the measured active power.