Abstract
The multi-microgrids (MMGs) concept has recently got more attention due to its features of accommodating large-scale integration of renewable generation with efficient utilization, improved power system efficiency, reliability and stability performance through coordination and cooperation of energy exchange among the microgrids (MGs) and the main grid. Moreover, utilization of demand response programs in MMG structure can also bring wide range of potential economic benefits to system operation and stability. However, various factors including electrical load variation, the unpredictable nature of renewable energy resources, the coordinated energy trading among microgrids and cyber-attacks on communication based coordinated control can pose great challenge to achieve stable, effective, secure and optimal operation of power system. In this paper, we provide a comprehensive review on the contemporary multi-microgrid architectures, energy management functionalities and multi-objectives energy management schemes in MMGs. Also, an overview of demand side management techniques and coordination schemes incorporating energy transaction and resilience operation in MMGs is provided. The importance of cyber-security in MMGs is highlighted and different attacks are reported. Finally, future recommendations on contemporary literature are provided.
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