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This paper proposes an economical-sharing scheme without the needs of any communications for islanded AC microgrids (MGs) fed by cascaded inverters. The output voltage phase angle of each distributed generator (DG) is regulated by its corresponding incremental cost. Then the equal incremental principle used to guarantee the economic optimality is realized by synchronization conditions. In addition,...
This letter studies the economical dispatch problems (EDPs) in islanded microgrid from three aspects: a) whether the global optimal dispatch (GOD) can be achieved through a decentralized manner in a system; (b) if yes, how to achieve the GOD; (c) otherwise, how to obtain a suboptimal alternative. As a result, we arrive a criterion that GOD can be achieved in decentralized manners if and only if optimal...
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