A centralized control for the operation of low voltage distribution networks with multiple Distributed Energy Resources

Abstract

This paper proposes a secondary substation centered control approach which deals with the effective coordination of multiple Distributed Energy Resources (DER) connected along the LV grid. The presented tool manages and schedules the flexibilities (i.e. active and reactive power injection or absorption) provided by DER in order to address overvoltages or voltage sags, while minimizing operational costs. The methodology is based on a three-phase multiperiod optimal power flow. The proposed control scheme is assessed within an IEEE - LV benchmarked network considering different scenarios of Electric Vehicle and microgeneration integration as well as a centralized battery owned by the grid operator.