| 摘要 |
PURPOSE: A grid connected energy storing system is provided to normally operate in spite of a grid fault by interconnecting a grid to various power sources. CONSTITUTION: A first converter(10) converts power from a renewable energy source. A charging and discharging device charges or discharges a battery. A grid connected inverter(30) inverts AC of a grid to DC. A detecting unit(40) detects the voltage and current of a load, a grid, the battery, and the renewable energy source and transmits the detected result to a control unit(50). The control unit controls the operation of an energy storing system(100) by using the detected information from the detecting unit. [Reference numerals] (10) First converter; (100) Energy storing system of a present invention; (20) Charging and discharging device; (30) Grid connected inverter; (40) Detecting unit; (50) Control unit; (60) Driving unit;
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