Dynamic islanding strategy regarding sustainable on-load capacity of photovoltaic/energy-storage hybrid system in microgrid

[摘要] To measure sustainable loading capacity of photovoltaic/energy-storage system, indexes for sustainable loading power margin and energy margin are defined. With this basis, a dynamic islanding strategy for distribution system with photovoltaic/energy-storage system is proposed. The reliability assessment algorithm of the distribution network is improved based on Monte Carlo Simulation, by considering the fluctuation of PV output and load demand. Finally, it conducts a reliability assessment for modified RBTS Bus6, and results of simulation show that the proposed strategy can ensure continuous and stable operation of important loads within Micro-Grid, and enhance the reliability of distribution network.

[发布机构] South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, China^1

[效力级别] 电工学

[关键词] Distribution systems;Energy margin;Load capacity;Power margins;Reliability assessments;Reliability of distribution network;Stable operation;Sustainable loadings