Battery Energy Storage System for Emergency Supply and Improved Reliability of Power Networks

Marcin Szott, Szymon Wermiński, Marcin Jarnut, Jacek Kaniewski and Grzegorz Benysek
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Marcin Szott: Institute of Automatic Control, Electronics and Electrical Engineering, University of Zielona Góra, St Prof. Z. Szafrana 2, 65-516 Zielona Góra, Poland
Szymon Wermiński: Institute of Automatic Control, Electronics and Electrical Engineering, University of Zielona Góra, St Prof. Z. Szafrana 2, 65-516 Zielona Góra, Poland
Marcin Jarnut: Institute of Automatic Control, Electronics and Electrical Engineering, University of Zielona Góra, St Prof. Z. Szafrana 2, 65-516 Zielona Góra, Poland
Jacek Kaniewski: Institute of Automatic Control, Electronics and Electrical Engineering, University of Zielona Góra, St Prof. Z. Szafrana 2, 65-516 Zielona Góra, Poland
Grzegorz Benysek: Institute of Automatic Control, Electronics and Electrical Engineering, University of Zielona Góra, St Prof. Z. Szafrana 2, 65-516 Zielona Góra, Poland

Energies, 2021, vol. 14, issue 3, 1-21

Abstract: This paper introduces the concept of a battery energy storage system as an emergency power supply for a separated power network, with the possibility of island operation for a power substation with one-side supply. This system, with an appropriately sized energy storage capacity, allows improvement in the continuity of the power supply and increases the reliability of the separated network at a specified time during the limitation of power transmission as a result of damage or disconnection of the main power line. This paper presents and describes a specific method of energy storage system dimensioning based on real measurement data. Based on the obtained parameters, an analysis of the reliability improvement of the considered network was performed. The implementation of the battery energy storage system will contribute to a more than 5-fold reduction in the occurrence of power outages in the time interval from 3 min to 1.5 h, which will clearly reduce the System Average Interruption Frequency Index and System Average Interruption Duration Index factors. In this paper, the network conditions for operational normality and failure are presented and the cost for implementation of an energy storage system (about EUR 1 million) is compared with the possible implementation of an additional power line (about EUR 5 million) to a specific power substation.

Keywords: battery energy storage system; power network; power substation; energy backup; emergency power supply (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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