A smoothing method for wind power fluctuation using hybrid energy storage

Taekwon Kim, Hyeon Jin Moon, Do Hoon Kwon, Seung Ill Moon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

18 Scopus citations

Abstract

Battery energy storage is used for dispatching the fluctuations of wind power, but it has a slow response and limited life cycle. Therefore, capacitor energy storage is interconnected with battery energy storage to make a hybrid energy storage system for absorbing the high frequency part of the wind power output. The wavelet decomposition method is applied to decompose the wind power into high and low frequency parts. The capacitor absorbs the high frequency part, and two batteries absorb the low frequency part. In the low frequency region, the power allocation is conducted to batteries that have different capacities, but the same lifecycle characteristics. The simulation is examined with MATLAB, and the result shows that the proposed method has good smoothing performance and can prolong the battery life.

Original languageEnglish
Title of host publication2015 IEEE Power and Energy Conference at Illinois, PECI 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479979493
DOIs
StatePublished - 20 Mar 2015
Event2015 IEEE Power and Energy Conference at Illinois, PECI 2015 - Champaign, United States
Duration: 20 Feb 201521 Feb 2015

Publication series

Name2015 IEEE Power and Energy Conference at Illinois, PECI 2015

Conference

Conference2015 IEEE Power and Energy Conference at Illinois, PECI 2015
Country/TerritoryUnited States
CityChampaign
Period20/02/1521/02/15

Keywords

  • Battery energy storage system (BESS)
  • renewable energy
  • smoothing effect
  • wavelet decomposition
  • wind power generation

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