Supercapacitor based energy storage system in STATCOM application

Xiao Chang, Derrick Holliday, Grain Philip Adam, Barry Williams

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

2 Citations (Scopus)


A supercapacitor based static synchronous compensator, STATCOM, is proposed to control both reactive and active power exchange with the grid side. It aims to provide a comprehensive control for a distributed network, and improve the stability. However, due to its low cell voltage, long time constant, and voltage dependent energy storage, applying the supercapacitor to grid level applications is challenging. This paper examines the steady state performance of three types of supercapacitor based energy storage system, which used as the DC link capacitor part in STATCOM application. The simulation results shown that, even at steady-state, the dc link has a high ripple current. In order to tolerate the high ripple current, the supercapacitor based energy storage system should be carefully designed. Two types of parallel hybrid capacitor systems are developed in comparison with the pure supercapacitor system, which provide an improved performance in terms of efficiency, volume, thermal, cost, and lifetime under the same STATCOM operating condition.
Original languageEnglish
Title of host publication2016 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)
Place of PublicationPiscataway, N.J.
Number of pages6
ISBN (Electronic)9781467389044
ISBN (Print)9781467389037
Publication statusPublished - 13 Mar 2017
Event2016 International Conference on Smart Grid and Clean Energy Technologies - Chengdu, China
Duration: 19 Oct 201622 Oct 2016


Conference2016 International Conference on Smart Grid and Clean Energy Technologies
Abbreviated titleICSGCE


  • automatic voltage control
  • power grids
  • reactive power control
  • supercapacitors


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