Flexible network operation

Maren Istad,Per E Nordbø,Ole J Hatlen,Henrik Kirkeby,Odin H Eliassen,Remy A.H Hjelme

doi:10.1049/oap-cired.2017.1272

Abstract

This study presents preliminary results from the research project ‘Flexibility in the future smart distribution network’ (FlexNett). The project aims at contributing increased flexibility in the distribution network through, among other measures, flexible operation of the distribution network. Flexibility is defined, in the project, as a situational and time-limited response to an incentive i.e. shortage of energy, interruption, or changes in energy prices. Flexible network operation can for example include using energy storage, remote control, and automatisation of network operation and voltage control, resulting in improved security of supply and voltage quality, and in some cases also postponement of reinvestments.

Highlights

A distribution network operator, like BKK Nett, holds a territorial concession and is obliged by the Energy Act [1] to deliver electrical energy to customers within the specified area
Examples treated in this paper are storage and automatic fault location, isolation and service restoration (FLISR) solutions
This paper reports on results from two demonstration activities at BKK Nett:

Summary

INTRODUCTION

A distribution network operator, like BKK Nett, holds a territorial concession and is obliged by the Energy Act [1] to deliver electrical energy to customers within the specified area. The level of continuity of supply is regulated through economic revenues regulation, and the voltage quality to be expected is specified by the Regulation on Quality of Supply in the Power System [2]. Both the public and industry is becoming more and more dependent on a high quality and reliable electricity supply. This paper reports on results from two demonstration activities at BKK Nett: Energy storage: o Installation of batteries to improve quality of supply and avoid costly reinvestment in an overhead line supplying a sports cafe. The sites selected for the battery package and FLISR solution are chosen due to R&D aspects for similar future deployments, other locations may have been chosen if cost-benefit were to be optimized

ENERGY STORAGE

Battery to improve power quality at Brushytten

Mitigating voltage drops from challenging loads

After FLISR Generally

Findings

CONCLUSIONS