Abstract
Microgrids (MG) with renewable energy resources have shown competitive operational advantages for smart grid integration. In the wake of events such as the July 2012 India blackout, recent interest has been directed to the deployment of MGs in grid-independent (islanded) settings. In this paper we develop an autonomous distributed framework for cooperation amongst a set of grid-independent microgrids to improve the overall microgrid network (MGN) reliability. We further develop an enhanced distributed algorithm to support the proposed system. This work adopts a game theoretic approach via coalition formation games (CFG) formulation for static and dynamic MGNs. We consider MGNs with variable renewable distributed energy resources (DER) penetration levels and variable wind generation percentage of the total renewable generation mix. Main results show cooperation gains for cooperative MGN, study the effects of rate policies, and show how the proposed system performs under different renewable DER penetration levels and wind generation percentages.
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