PV power plant using hybrid energy storage system with improved efficiency

Guishi Wang, Mihai Ciobotaru, Vassilios G. Agelidis

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

16 Citations (Scopus)

Abstract

In the last few years, the stationary battery started to be used as energy storage systems (ESS) in order to enhance the supply reliability of large-scale PV power plants, thereby enabling high penetration of PV-generated electricity into the electrical grid. Lately, one of the flow battery energy storage technologies, namely the Vanadium Redox Battery (VRB) started to be commercialised in the range of Mega-watts and it has attracted increasing interest of the renewable energy industry. The integration of a VRB-ESS with a large-scale PV plant also brings some new technical challenges. For instance, the VRB efficiency drops significantly when its output power is lower than 0.2 pu of its rated power. This paper proposes a VRB and supercapacitor (SC) hybrid energy storage system (HESS) to improve the efficiency of a standard sole VRB-ESS. The HESS management strategy is also introduced in this paper. An equivalent electrical model of the PV system including the HESS was implemented in MATLAB/Simulink/PLECS environment to analyse the operational performance of the proposed system.
Original languageEnglish
Title of host publicationProceedings - 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems
Subtitle of host publicationPEDG 2012
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages808-813
Number of pages6
ISBN (Electronic)9781467320238
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012 - Aalborg, Denmark
Duration: 25 Jun 201228 Jun 2012

Other

Other2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012
CountryDenmark
CityAalborg
Period25/06/1228/06/12

Keywords

  • Hybrid Energy Storage System
  • Photovoltaics
  • Supercapacitor
  • Vanadium Redox Battery (VRB)

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  • Cite this

    Wang, G., Ciobotaru, M., & Agelidis, V. G. (2012). PV power plant using hybrid energy storage system with improved efficiency. In Proceedings - 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems: PEDG 2012 (pp. 808-813). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/PEDG.2012.6254094