Smart hybrid energy storage for stand-alone PV microgrid: Optimization of battery lifespan through dynamic power allocation

Wenlong Jing, Chean Hung Lai, M. L. Dennis Wong, Wallace Shun Hui Wong

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

1 Citation (Scopus)

Abstract

In islanded microgrid system, the battery tends to be the most vulnerable element in terms of durability. Poorly managed battery charge/discharge process is one of the main life-limiting factors. To improve the battery life, a novel energy storage system topology and a power allocation strategy are proposed in this paper. A standalone 6kW Photovoltaic (PV) microgrid system with hybrid energy storage that combines battery and supercapacitor (SC) is considered. The performance of the proposed system is evaluated via model simulation using Matlab/Simulink. The system is simulated under a typical 24-hours residential load profile and the results demonstrated that the proposed system can provide sufficient power to regulate the fluctuations in supply and load whilst maintaining optimal batteries charged / discharged rate. The batteries were also operated under a low depth-of-discharge which prolongs the battery lifetime.

Original languageEnglish
Title of host publication2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)
PublisherIEEE
ISBN (Electronic)9781467381321
DOIs
Publication statusPublished - 14 Jan 2016
EventIEEE PES Asia-Pacific Power and Energy Engineering Conference 2015 - Brisbane, Australia
Duration: 15 Nov 201518 Nov 2015

Conference

ConferenceIEEE PES Asia-Pacific Power and Energy Engineering Conference 2015
Abbreviated titleAPPEEC 2015
CountryAustralia
CityBrisbane
Period15/11/1518/11/15

Keywords

  • Battery
  • Hybrid Energy Storage
  • Lifetime
  • PV System
  • Supercapacitor

ASJC Scopus subject areas

  • Energy Engineering and Power Technology

Fingerprint Dive into the research topics of 'Smart hybrid energy storage for stand-alone PV microgrid: Optimization of battery lifespan through dynamic power allocation'. Together they form a unique fingerprint.

  • Cite this

    Jing, W., Lai, C. H., Wong, M. L. D., & Wong, W. S. H. (2016). Smart hybrid energy storage for stand-alone PV microgrid: Optimization of battery lifespan through dynamic power allocation. In 2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) [7381050] IEEE. https://doi.org/10.1109/APPEEC.2015.7381050