This paper presents a two-layer distributed cooperative control method for networked microgrid (NMG) systems, taking into account the proprietary nature of microgrid (MG) owners. The proposed control architecture consists of an MG-control layer and an NMG-control layer. In the MG layer, the primary and distributed secondary controls realize accurate power sharing among distributed generators (DGs) and the frequency/voltage reference following within each MG. In the NMG layer, the tertiary control enables regulation of the power flowing through the point of common coupling (PCC) of each MG in a decentralized manner. Furthermore, distributed quaternary control restores the system frequency and critical bus voltage to their nominal values and ensures accurate power sharing among MGs. A small-signal dynamic model is developed to evaluate the dynamic performance of NMG systems with the proposed control method. Time-domain simulations and experiments on NMG test systems are performed to validate the effectiveness of the proposed method.
A Two-layer Distributed Cooperative Control Method for Islanded Networked Microgrid Systems
2020-03-01
Wu , X , Xu , Y , Wu , X , He , J , Guerrero , J M , Liu , C-C , Schneider , K P & Ton , D T 2020 , ' A Two-layer Distributed Cooperative Control Method for Islanded Networked Microgrid Systems ' , IEEE Transactions on Smart Grid , vol. 11 , no. 2 , 8760423 , pp. 942-957 . https://doi.org/10.1109/TSG.2019.2928330
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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