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

Christopher D. Townsend; Terrence J. Summers; Robert E. Betz

doi:10.1109/TIE.2013.2275893

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

Christopher D. Townsend, Terrence J. Summers, Robert E. Betz

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

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Abstract

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.

Original language	English
Article number	6573419
Pages (from-to)	2655-2664
Number of pages	10
Journal	IEEE Transactions on Industrial Electronics
Volume	61
Issue number	6
DOIs	https://doi.org/10.1109/TIE.2013.2275893
Publication status	Published - Jun 2014
Externally published	Yes

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10.1109/TIE.2013.2275893

© 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other worksTownsend et al. 2014 Impact of practical
© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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abstract = "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.",

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AB - 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.

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

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