Apparatus and method for operating stand-alone microgrid

The present invention relates to an operating apparatus and method for a small stand-alone micro-grid systems that operate separately from the power system. A stand-alone microphone grid operating apparatus of the invention for this is that the data acquisition unit collects the measured information and the weather information for the generator, the energy storage unit and the load contained in a stand-alone micro-grid system; The forecast period for calculating the two load forecasting and prediction generation of measurement information and weather information based on the first subsequent period generators of renewable power generation facilities as; The predicted power generation amount and the control amount calculating section 2 period to the second period based on the predicted load calculating a control parameter for the generator, the energy storage unit and the load; And the control parameters on the basis of the generator, an energy storage unit and a control unit that performs control for the load, characterized in that connected in parallel to the generator of the distribution line is connected to the generator and the internal combustion energy storage unit load.