首页|Resilence Control of DC Microgrid Integrated with Multi-nanogrids Considering Connected-islanded States
Resilence Control of DC Microgrid Integrated with Multi-nanogrids Considering Connected-islanded States
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In this paper,a DC microgrid(DCMG)integrated with a set of nano-grids(NG)is studied.DCMG exchanges prede-termined active and reactive power with the upstream network.DCMG and NGs are coordinately controlled and managed in such a way the exchanged P-Q power with external grid are kept on scheduled level following all events and operating conditions.The proposed control system,in addition to the ability of mutual support between DCMG and NGs,makes NGs support each other in critical situations.On the other hand,in all operating conditions,DCMG not only feeds three-phase loads with time-varying active and reactive power on the grid side but also injects constant active power into the grid.During events,NGs support each other,NGs support DCMG,and DCMG supports NGs.Such control strategies are realized by the proposed control method to increase resilience of the system.For these purposes,all resources and loads in DCMG and NGs are equipped with individual controllers.Then,a central control unit analyzes,monitors,and regularizes performance of individual controllers in DCMG and NGs.Nonlinear simulations show the proposed model can effectively control DCMG and NGs under normal and critical conditions.
Control systemDC microgridnanogridresilience
Hossien Faraji、Reza Hemmati、Pierluigi Siano
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Department of Electrical Engineering,Amirkabir University of Technology,Tehran,Iran
Department of Electrical Engineering,Kermanshah University of Technology,Kermanshah,Iran
Department of Management & Innovation Systems,University of Salerno
Department of Electrical and Electronic Engineering Science,University of Johannesburg,Johannesburg 2006,South Africa
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