Decentralized and coordinated scheduling model of interconnected multi-microgrid based on virtual energy storage

•A decentralized and coordinated scheduling method of interconnected multi-microgrid is proposed.•The virtual energy storage model for microgrid is established to express the potential flexibility.•The analytical target cascading is used to decouple the two-level optimization model.•The available flexible resource capacity of microgrid to the others are quantitatively analyzed.