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A Novel Cooperative Distributed Secondary Controller For Vsi And Pq Inverters Of Ac Microgrids, F. Doost Mohammadi, H. Keshtkar, A. Dehghan Banadaki, A. Feliachi
A Novel Cooperative Distributed Secondary Controller For Vsi And Pq Inverters Of Ac Microgrids, F. Doost Mohammadi, H. Keshtkar, A. Dehghan Banadaki, A. Feliachi
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This paper proposes a novel cooperative secondary control strategy for microgrids which is fully distributed. There is a two-layered coordination, which exists between inverter based DGs of both types, i.e. Voltage Source Inverter (VSI) and Current Source Inverter (CSI), also called PQ inverter. In first layer of the proposed two-layered cooperative control strategy, VSIs will take care of the primary average voltage regulation by implementing the average consensus algorithm (ACA); then in the second layer of control, the PQ inverters will improve the voltage quality of the microgrid while maintaining the average voltage of buses at the same desired level. …