Coordinated Droop Control of Battery and Flywheel ESSs in Isolated Microgrid Considering Their SOC

In this paper, a smaller battery and flywheel storage system was used to reduce the cost of using large flywheel storage to respond to fast load fluctuations. The droop control method is used for coordination between the flywheel, battery, and diesel. This method has been used to control the flywheel and the battery, respectively, with their speed and state of charge (SOC). Accordingly, by correctly coordinating the components of the microgrid, it is possible to reduce the high investment costs so that the efficiency of the microgrid is not reduced to respond to rapid changes in load.