Volt/Var optimization of the Korean smart distribution management system

This paper introduces a prototype volt/var optimization (VVO) method for the Korean smart distribution management system (K-SDMS) considering control of distributed generations (DGs) and a looped distribution topology. The main function of the VVO is to determine the references of volt/var control devices, including DGs to eliminate violations, to minimize the switching operation of the on-load tap changer (OLTC), the step voltage regulator (SVR), and capacitors, and to minimize the active power loss of the distribution network. The effectiveness of the VVO is presented with case studies using the K-SDMS simulator.