Evaluation of a multilevel cascaded-type dynamic voltage restorer employing discontinuous space vector modulation

Ahmed M. Massoud, Shehab Ahmed, Prasad N. Enjeti, Barry W. Williams

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

In this paper, the application of a cascaded multilevel inverter as a dynamic voltage restorer (DVR) is investigated. Two discontinuous multilevel space vector modulation (SVM) techniques are implemented for DVR control and are shown to reduce inverter switching losses while maintaining virtually the same harmonic performance as the conventional multilevel SVM at a high number of levels. This paper also presents a mathematical relationship for computing the distortion at the point of common coupling (PCC) as a function of the distortion of the DVR. This enables the selection of the number of levels required for a certain application. An extended sag duration support compared to the two-level DVR is another advantage of the DVR with a cascaded multilevel inverter. The common-mode voltage (CMV) at the PCC has been evaluated for the three SVM techniques (the conventional multilevel SVM and the two discontinuous SVM), presenting a lower CMV for the second discontinuous SVM. A design example is presented for an 11-kV 5-MVA DVR multilevel cascaded inverter for up to 17 levels, employing the conventional multilevel SVM and the two discontinuous SVM techniques.

Original languageEnglish
Article number5409613
Pages (from-to)2398-2410
Number of pages13
JournalIEEE Transactions on Industrial Electronics
Volume57
Issue number7
DOIs
Publication statusPublished - Jul 2010

Fingerprint

Vector spaces
Modulation
Electric potential
Voltage control

Keywords

  • Dynamic voltage restorer (DVR)
  • Multilevel inverter
  • Space vector modulation (SVM)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Computer Science Applications

Cite this

Evaluation of a multilevel cascaded-type dynamic voltage restorer employing discontinuous space vector modulation. / Massoud, Ahmed M.; Ahmed, Shehab; Enjeti, Prasad N.; Williams, Barry W.

In: IEEE Transactions on Industrial Electronics, Vol. 57, No. 7, 5409613, 07.2010, p. 2398-2410.

Research output: Contribution to journalArticle

@article{3e2e66145f45402f88d3bfed9268f72d,
title = "Evaluation of a multilevel cascaded-type dynamic voltage restorer employing discontinuous space vector modulation",
abstract = "In this paper, the application of a cascaded multilevel inverter as a dynamic voltage restorer (DVR) is investigated. Two discontinuous multilevel space vector modulation (SVM) techniques are implemented for DVR control and are shown to reduce inverter switching losses while maintaining virtually the same harmonic performance as the conventional multilevel SVM at a high number of levels. This paper also presents a mathematical relationship for computing the distortion at the point of common coupling (PCC) as a function of the distortion of the DVR. This enables the selection of the number of levels required for a certain application. An extended sag duration support compared to the two-level DVR is another advantage of the DVR with a cascaded multilevel inverter. The common-mode voltage (CMV) at the PCC has been evaluated for the three SVM techniques (the conventional multilevel SVM and the two discontinuous SVM), presenting a lower CMV for the second discontinuous SVM. A design example is presented for an 11-kV 5-MVA DVR multilevel cascaded inverter for up to 17 levels, employing the conventional multilevel SVM and the two discontinuous SVM techniques.",
keywords = "Dynamic voltage restorer (DVR), Multilevel inverter, Space vector modulation (SVM)",
author = "Massoud, {Ahmed M.} and Shehab Ahmed and Enjeti, {Prasad N.} and Williams, {Barry W.}",
year = "2010",
month = "7",
doi = "10.1109/TIE.2010.2041732",
language = "English",
volume = "57",
pages = "2398--2410",
journal = "IEEE Transactions on Industrial Electronics",
issn = "0278-0046",
publisher = "IEEE Industrial Electronics Society",
number = "7",

}

TY - JOUR

T1 - Evaluation of a multilevel cascaded-type dynamic voltage restorer employing discontinuous space vector modulation

AU - Massoud, Ahmed M.

AU - Ahmed, Shehab

AU - Enjeti, Prasad N.

AU - Williams, Barry W.

PY - 2010/7

Y1 - 2010/7

N2 - In this paper, the application of a cascaded multilevel inverter as a dynamic voltage restorer (DVR) is investigated. Two discontinuous multilevel space vector modulation (SVM) techniques are implemented for DVR control and are shown to reduce inverter switching losses while maintaining virtually the same harmonic performance as the conventional multilevel SVM at a high number of levels. This paper also presents a mathematical relationship for computing the distortion at the point of common coupling (PCC) as a function of the distortion of the DVR. This enables the selection of the number of levels required for a certain application. An extended sag duration support compared to the two-level DVR is another advantage of the DVR with a cascaded multilevel inverter. The common-mode voltage (CMV) at the PCC has been evaluated for the three SVM techniques (the conventional multilevel SVM and the two discontinuous SVM), presenting a lower CMV for the second discontinuous SVM. A design example is presented for an 11-kV 5-MVA DVR multilevel cascaded inverter for up to 17 levels, employing the conventional multilevel SVM and the two discontinuous SVM techniques.

AB - In this paper, the application of a cascaded multilevel inverter as a dynamic voltage restorer (DVR) is investigated. Two discontinuous multilevel space vector modulation (SVM) techniques are implemented for DVR control and are shown to reduce inverter switching losses while maintaining virtually the same harmonic performance as the conventional multilevel SVM at a high number of levels. This paper also presents a mathematical relationship for computing the distortion at the point of common coupling (PCC) as a function of the distortion of the DVR. This enables the selection of the number of levels required for a certain application. An extended sag duration support compared to the two-level DVR is another advantage of the DVR with a cascaded multilevel inverter. The common-mode voltage (CMV) at the PCC has been evaluated for the three SVM techniques (the conventional multilevel SVM and the two discontinuous SVM), presenting a lower CMV for the second discontinuous SVM. A design example is presented for an 11-kV 5-MVA DVR multilevel cascaded inverter for up to 17 levels, employing the conventional multilevel SVM and the two discontinuous SVM techniques.

KW - Dynamic voltage restorer (DVR)

KW - Multilevel inverter

KW - Space vector modulation (SVM)

UR - http://www.scopus.com/inward/record.url?scp=77953599226&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77953599226&partnerID=8YFLogxK

U2 - 10.1109/TIE.2010.2041732

DO - 10.1109/TIE.2010.2041732

M3 - Article

VL - 57

SP - 2398

EP - 2410

JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

SN - 0278-0046

IS - 7

M1 - 5409613

ER -