Valliammai Engineering College Kattankulathur

Chennai, India

Valliammai Engineering College Kattankulathur

Chennai, India
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Girija R.,Anna University | Arivalahan R.,Valliammai Engineering College Kattankulathur
Proceedings - NCET NRES EM 2014: 2nd IEEE National Conference on Emerging Trends in New and Renewable Energy Sources and Energy Management | Year: 2015

Microgrid have been accepted concept widely for the better interconnection of DGs. Corresponding to the conventional power system ac microgrid have been proposed, particularly increasing the use of renewable enery sources generate dc power which need a dc link for the grid connection and as a result of increasing modern dc loads. Dc microgrid have been recently emerged for their benifits in terms of efficiency cost and no of conversion stages. The ac microgrid are dominant in power system, but it doesn't replaced by the dc microgrid, so we are interfacing ac and dc microgrid by interlinking converter(IC) for proper power management and decentralized control, which exploiting the prominent features of both ac and dc microgrid. During the islanding operation of the hybrid ac/dc microgrid, the IC is intended to take the role of supplier to one microgrid and at the sametime acts as a load to the other microgrid and the power management system should be able to share the power demand between the exiting ac and dc sources in both the microgrids. This paper considers the power flow control and management issues amongst multiple sources distributed throughout both ac and dc microgrids. The paper proposes a decentralized power sharing method in order to eliminate the need for communication between DGs or microgrids. the performance of the proposed power control strategy is valitated for differtent operating conditions, using simulation studies in the MATLAB software environment. © 2014 IEEE.

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