This study addresses the distributed economic dispatch problem for DC microgrids when time-varying delays are present in communication networks. A novel distributed algorithm is proposed, and the proposed controller c...
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This study addresses the distributed economic dispatch problem for DC microgrids when time-varying delays are present in communication networks. A novel distributed algorithm is proposed, and the proposed controller contains a distributed generation cost optimisation module and a voltage regulation module. The costoptimisationmodule is aimed to realise costoptimisation by driving the incremental cost rate of every distributed generator to be equal. In the voltage regulation module, a distributed synchronisation algorithm is used to restore the global average voltage. After the effect of the communication delay on the system stability is analysed, the robust stability criticality under load changes is obtained by using linear matrix inequality. The performance of the proposed scheme is validated through simulations and experimentally.
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