Abstract

Microgrid is the main part of future electrical power systems, called “smart grids”. In this context, the synchronization of a microgrid with utility or other microgrids will be a crucial and commonplace task during power system operation. Based on robust control principles, a new approach for synchronizing microgrids with utility was presented in this paper. Uncertainties of the dynamic model of microgrids were considered as multiplicative perturbations. Based on the uncertain model, a robust controller was designed by means of $\mu$ synthesis analysis so that the robust stability and performance of the system could be maximized. The simulation results confirmed the effectiveness of the proposed control strategy.

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