Optimal Scheduling and Control Technology Research For the Isolated Microgrid

Abstract

As regards the isolated microgrid adopting the energy storage system (ESS) as its swing bus, when the actual renewable energy generation deviates from the forecast result, ESS provides this difference spontaneously. It turns out that ESS will deviate from scheduling on the state of charge (SOC), even shut down. In this study, a real-time dispatch scheme is proposed to amend the errant SOC. When the SOC error is considerable, this dispatch will be activated to compensate the additional energy afforded by ESS on the base of minimizing short-term generation cost. Therefore, the microgrid will keep running steadily and economically.