Impact of practical issues on the harmonic performance of phase-shifted modulation strategies for a cascaded H-Bridge StatCom

Title: Impact of practical issues on the harmonic performance of phase-shifted modulation strategies for a cascaded H-Bridge StatCom
Creator: Townsend, Christopher D.; Summers, Terrence J.; Betz, Robert E.
Relation: IEEE Transactions on Industrial Electronics Vol. 61, Issue 6, p. 2655-2664
Publisher Link: http://dx.doi.org/10.1109/TIE.2013.2275893
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: journal article
Date: 2014
Description: Phase-shifted carrier (PSC) modulation has become an industry standard in its application to multilevel H-bridge static compensators (H-StatComs). The technique uses the cancellation of harmonics within each phase leg to significantly improve the harmonic performance relative to the switching frequency. This paper investigates subtle practical implementation issues which deteriorate the harmonic performance of this technique. The effects of nonuniform dc bus voltages and capacitor voltage balancing strategies are investigated. Simulation and experimental results are presented which show that the harmonic performance of the PSC technique deteriorates as the number of voltage levels produced by the H-StatCom increases.
Subject: control strategy; modulation strategy; multilevel converters; static compensators; voltage balances
Identifier: http://hdl.handle.net/1959.13/1307393
Identifier: uon:21409
Identifier: ISSN:0278-0046
Language: eng
Reviewed

		Thumbnail	File	Description	Size	Format