Research on security boundary of active power distribution system with distributed energy storage

Inhalt:
Under the high proportion of renewable energy generation access, a large number of new components will be used in the power distribution system, such as energy storage, electric vehicles, etc. The nodes and branches of the system will have two-way power flow characteristics, and present significant uncertainty and new features of power electronics. But security has always been an important factor in the planning and operation of power distribution system. In this paper, a security boundary solution method for the system with distributed energy storage is proposed, based on the N-1 security criterion, voltage deviation and other constraints, so as to quickly evaluate the security of future power distribution system. Finally, a simulation example is given to analyze the topological properties changes of the security boundary of the considering energy storage distribution system.