Practical observations of loss-of-mains nuisance tripping of fast acting energy storage

Author(s): Simon J Roystona, Dani Stricklandb, David A Stonea, Daniel T Gladwina, Martin P Fostera, Shahab Nejada
a Department of Engineering, University of Sheffield, Sheffield, UK
b Department of Engineering, Loughborough University, Loughborough, UK
International Journal of Smart Grid and Clean Energy, vol. 9, no. 3, May 2020: pp. 473-484
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.9.3.473-484

Abstract: Fast acting battery energy storage systems are able to swing power very quickly between maximum import and maximum export in less than 50ms based on operational experience of a 2MW energy storage system. However, this can result in nuisance tripping of the unit through the operation of the loss-of-mains protection (LoM). This paper looks at data captured during power swings of up to 4MW during typical operation and discusses the potential for nuisance tripping, and suggests potential settings for improved operation.

Keywords: Power system protection, energy storage, energy management
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