Recent advances on Microgrid Structure and Control Strategy

With the rapid increase in electricity demand, how to provide stable energy supply by microgrid has become an important research direction. The precision and stability control of microgrid have been extensively studied, so this paper reviews the structure and control strategy of microgrid. Firstly, the structure of different microgrid is summarized and analyzed. Secondly, control strategies of microgrid are analyzed, while operation control strategy of islanded and grid-connected mode, three-layer control strategy of microgrid and multi-microgrid parallel optimal scheduling control strategy have been explored. Finally, future research direction of microgrid is discussed.