Impact of distributed energy resources on low voltage distribution networks

Abstract

The penetration of Distributed Energy Resources (DER) in the low voltage distribution network has some barriers that have to be overcome. This paper address a study of exiting low voltage distribution network incorporating DER of Photovoltaic Systems (PV) and different Battery Energy Storage (BESS) strategies. The propose of this work is analyze Voltage Profiles (VP) in customers nodes, Energy Losses (EL) along the grid and decide the better way to integrate DER into distribution energy systems. For that, we use Load Flow Study (LFS) module of Power System Simulation for Engineering (PSS/E) articulate with Python algorithms to analyze different days of study in a 24hr lapse. Different variables as number of clients contacting PV system on grid, power of customer`s installation, load profiles of all clients of the same feeder are taken in consideration. Two BES strategies are considered to be analyzed, Centralize Energy Storage (CES) o Distributed Energy Storage (DES). In addition, an independent voltage control is raised to determinate the benefits in VP.