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Abstract

Environmental and economic challengeslead to the rapid growth of the renewable energy (RE)market in many countries. At a high level of RE sources(i.e. wind and solar) penetration, power systemsface technical difficulties associated with the criticalfrequency stability and insufficient power reserves.The problem becomes particularly acute at penetrationlevels higher than 50 %, when conventional generationunits are forced to operate at partial load, potentiallyresulting in premature equipment wear. Energy storageand demand-side management may offer solutions in thefuture, however, at the current stage, they incorporatesubstantial capital investment and complicate controlsystem. This paper suggests a control strategy formaximum RE penetration, adopting a low load dieselapplication integrated with a small-capacity batteryenergy storage system. The strategy results in improvedrenewable energy utilization without overcomplicatingthe control architecture. Initially, a mathematical modelis developed, then it is validated based on an isolatedpower system – a power system where penetrationof RE already exceeds 50 % annually. Optimizedcontrol strategies are shown to deliver a 20 % increasein renewable energy penetration in comparison toconventional ones.

Item Type:	Article
Authors/Creators:	Negnevitsky, M and Semshchikov, E and Hamilton, J and Wang, X and Bayborodina, E
Keywords:	battery energy storage system, low load diesel, power system control, renewable energy.
Journal or Publication Title:	Energy Systems Research
Publisher:	Melentiev Energy Systems Institute
ISSN:	2618-9992
DOI / ID Number:	https://doi.org/10.25729/esr.2019.02.0006
Copyright Information:	Copyright 2019 ESI SB RAS and authors. Licensed under Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/
Related URLs:	Google Scholar: Negnevitsky, M UTAS Profile: Negnevitsky, M Google Scholar: Wang, X UTAS Profile: Wang, X
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