MICRO-SOURCE AND ITS CONTROL METHOD FOR MICROGRID

摘要

PURPOSE: Micro power for a micro grid and a method for controlling the same are provided to secure the smooth reconnection between the micro grid and an upper power system by directly controlling an interface switch based on the controller of the micro power. CONSTITUTION: A first interface switch(1212) is combined between a third bus-line and a second bus-line. A second interface switch(1211) is combined between a first bus-line and a second bus-line. An inverter converts a direct current voltage from a direct current power source into an alternating current voltage. A micro power controlling unit(1213) generates a signal for controlling the first interface switch and the second interface switch and controls the output voltage of the inverter.