Volt-VAR Multiobjective Optimization to Peak-Load Relief and Energy Efficiency in Distribution Networks

Abstract

This paper addresses the integrated volt-var control for distribution network operation via multiobjective 
optimization. This paper seeks to explore the problem of energy savings and peak demand relief through the 
voltage reduction procedure. Currently, due to the emergence of the distribution smart grids, these procedures 
are gaining renewed interest and attention. The proposal presented here is for the operation phase, with a strategy 
based on an hourly load forecast for the next day/week, taking into account the active power intake reduction, 
and the voltage deviation. Therefore, the result is a set of nondominated optimal solutions, and then one may decide 
when, where, and how to apply them to meet different goals. The obtained solutions, for two typical distribution 
networks, describe relevant economic and technical benefits.