Efficiency analysis for a grid-connected battery energy storage system

N K Noyanbayev; Andrew Forsyth; Thomas Feehally

Efficiency analysis for a grid-connected battery energy storage system

N K Noyanbayev, Andrew Forsyth, Thomas Feehally

Research output: Contribution to journal › Article › peer-review

Abstract

Efficiency is one of the key characteristics of grid-scale battery energy storage system (BESS) and it determines how much useful energy lost during operation. The University of Manchester has been commissioned with 240 kVA, 180 kWh lithium-ion BESS. This paper investigates round-trip efficiencies, comparing energy extracted from and returned to the grid, of the BESS for different operation modes. This is done by developing simulation switch-level model of power components of the BESS. The simulation is validated against hardware test results and used to identify optimum operation modes, which vary depending on
SOC and charging and discharging power rates of the BESS.

Original language	English
Pages (from-to)	22811-22818
Number of pages	8
Journal	Materials Today: Proceedings
Early online date	3 Oct 2018
Publication status	Published - 2018

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Cite this

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AB - Efficiency is one of the key characteristics of grid-scale battery energy storage system (BESS) and it determines how much useful energy lost during operation. The University of Manchester has been commissioned with 240 kVA, 180 kWh lithium-ion BESS. This paper investigates round-trip efficiencies, comparing energy extracted from and returned to the grid, of the BESS for different operation modes. This is done by developing simulation switch-level model of power components of the BESS. The simulation is validated against hardware test results and used to identify optimum operation modes, which vary depending onSOC and charging and discharging power rates of the BESS.

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JO - Materials Today: Proceedings

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ER -

Efficiency analysis for a grid-connected battery energy storage system

Abstract

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