Non-uniform capacitor voltage ripple in a cascaded H-bridge StatCom

C. D. Townsend, J. Vodden, A. J. Watson, T. J. Summers, R. E. Betz, J. C. Clare

Research output: Chapter in Book/Conference paperConference paperpeer-review

1 Citation (Scopus)

Abstract

Employing space vector modulation in a multi-level H-bridge StatCom (H-StatCom) can provide an excellent tradeoff between harmonic performance and switching frequency. However the nature of the techniques used to balance the capacitor voltages in this control strategy means that capacitor voltage ripple is increased. This can have detrimental effects on the current tracking performance. This paper both compares the capacitor voltage ripple in differing space vector modulation techniques and develops a compensation scheme to minimise the effect of ripple on the current tracking performance. Simulation results are presented that confirm the correct operation of the compensation scheme.

Original languageEnglish
Title of host publication2012 22nd Australasian Universities Power Engineering Conference
Subtitle of host publication"Green Smart Grid Systems", AUPEC 2012
Publication statusPublished - 1 Dec 2012
Externally publishedYes
Event2012 22nd Australasian Universities Power Engineering Conference: "Green Smart Grid Systems", AUPEC 2012 - Bali, India
Duration: 26 Sep 201229 Sep 2012

Conference

Conference2012 22nd Australasian Universities Power Engineering Conference: "Green Smart Grid Systems", AUPEC 2012
Country/TerritoryIndia
CityBali
Period26/09/1229/09/12

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