Closed-Form Analytic Expression of Total Harmonic Distortion in Single-Phase Multilevel Inverters with Staircase Modulation

Eli Barbie; Raul Rabinovici; Alon Kuperman

doi:10.1109/TIE.2019.2922934

Closed-Form Analytic Expression of Total Harmonic Distortion in Single-Phase Multilevel Inverters with Staircase Modulation

Eli Barbie, Raul Rabinovici, Alon Kuperman

Department of Electrical & Computer Engineering

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

19 Scopus citations

Abstract

In this letter, explicit analytic expression of output voltage total harmonic distortion (THD) in staircase modulated single-phase multilevel inverters (MLI) is derived and verified. The revealed nonrecursive formulae is expressed as a simple function of all possible switching angles, valid for generalized MLI irrespectively of the topology and number of voltage levels (odd or even). The proposed expression may be utilized for accurate calculation of THD values, eliminating the risk of underestimation associated with typical frequency-based (numerical) approaches adopted by modern computational software packages.

Original language	English
Article number	8741195
Pages (from-to)	5213-5216
Number of pages	4
Journal	IEEE Transactions on Industrial Electronics
Volume	67
Issue number	6
DOIs	https://doi.org/10.1109/TIE.2019.2922934
State	Published - 1 Jun 2020

Keywords

Multilevel inverters
THD minimization
staircase modulation (SCM)
total harmonic distortion (THD)

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/TIE.2019.2922934

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title = "Closed-Form Analytic Expression of Total Harmonic Distortion in Single-Phase Multilevel Inverters with Staircase Modulation",

abstract = "In this letter, explicit analytic expression of output voltage total harmonic distortion (THD) in staircase modulated single-phase multilevel inverters (MLI) is derived and verified. The revealed nonrecursive formulae is expressed as a simple function of all possible switching angles, valid for generalized MLI irrespectively of the topology and number of voltage levels (odd or even). The proposed expression may be utilized for accurate calculation of THD values, eliminating the risk of underestimation associated with typical frequency-based (numerical) approaches adopted by modern computational software packages.",

keywords = "Multilevel inverters, THD minimization, staircase modulation (SCM), total harmonic distortion (THD)",

author = "Eli Barbie and Raul Rabinovici and Alon Kuperman",

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AU - Barbie, Eli

AU - Rabinovici, Raul

AU - Kuperman, Alon

PY - 2020/6/1

Y1 - 2020/6/1

N2 - In this letter, explicit analytic expression of output voltage total harmonic distortion (THD) in staircase modulated single-phase multilevel inverters (MLI) is derived and verified. The revealed nonrecursive formulae is expressed as a simple function of all possible switching angles, valid for generalized MLI irrespectively of the topology and number of voltage levels (odd or even). The proposed expression may be utilized for accurate calculation of THD values, eliminating the risk of underestimation associated with typical frequency-based (numerical) approaches adopted by modern computational software packages.

AB - In this letter, explicit analytic expression of output voltage total harmonic distortion (THD) in staircase modulated single-phase multilevel inverters (MLI) is derived and verified. The revealed nonrecursive formulae is expressed as a simple function of all possible switching angles, valid for generalized MLI irrespectively of the topology and number of voltage levels (odd or even). The proposed expression may be utilized for accurate calculation of THD values, eliminating the risk of underestimation associated with typical frequency-based (numerical) approaches adopted by modern computational software packages.

KW - Multilevel inverters

KW - THD minimization

KW - staircase modulation (SCM)

KW - total harmonic distortion (THD)

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EP - 5216

JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

IS - 6

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ER -

Closed-Form Analytic Expression of Total Harmonic Distortion in Single-Phase Multilevel Inverters with Staircase Modulation

Abstract

Keywords

ASJC Scopus subject areas

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