Microgrid Development in China: A method for renewable energy and energy storage capacity configuration in a megawatt-level isolated microgrid

In recent years, the microgrid has rapidly developed because of its advantages, such as easy integration of distributed renewable energy and flexibility in operation. The megawatt (MW)-level isolated microgrid, which is composed of photovoltaic (PV)/wind units, energy storage, and diesel/gas units, can solve power supply problems for remote areas without electricity; therefore, more countries and regions are developing this type of microgrid project. However, the cost of the microgrid is high and the microgrid control system is complicated, so economic and stability control issues have restricted the development of a large-scale isolated microgrid.