Complete Fast Analytical Solution of the Optimal Odd Single-Phase Multilevel Problem

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F10%3A00158339" target="_blank" >RIV/68407700:21230/10:00158339 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985556:_____/10:00345031

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Complete Fast Analytical Solution of the Optimal Odd Single-Phase Multilevel Problem

Popis výsledku v původním jazyce

In this paper we focus on computation of optimal switching angles for general multilevel odd symmetry waveforms. We show that this problem is similar to (but more general than) the PWM modulation problem which is an established method of generating PWM waveforms with low base-band distortion. We introduce a new general modulation strategy for multilevel inverters which takes an analytic form and is very fast with the complexity of only O(n log^2 n) arithmetic operations where n is the num. of controlledharmonics. This alg. is based on a transf. of appropriate trigonometric eqs. for each controlled harmonics to a poly. system of eqs. that is further transformed to a special sys. of composite sum of powers. The solution of this sys. is carried out by amodification of the Newton's identity via Pade approx., formal ortho. poly. theory, and properties of symmetric poly. Finally, the optimal switching sequence is obtained by computing zeros of two formal ortho. poly. in one variable.

Název v anglickém jazyce

Complete Fast Analytical Solution of the Optimal Odd Single-Phase Multilevel Problem

Popis výsledku anglicky

In this paper we focus on computation of optimal switching angles for general multilevel odd symmetry waveforms. We show that this problem is similar to (but more general than) the PWM modulation problem which is an established method of generating PWM waveforms with low base-band distortion. We introduce a new general modulation strategy for multilevel inverters which takes an analytic form and is very fast with the complexity of only O(n log^2 n) arithmetic operations where n is the num. of controlledharmonics. This alg. is based on a transf. of appropriate trigonometric eqs. for each controlled harmonics to a poly. system of eqs. that is further transformed to a special sys. of composite sum of powers. The solution of this sys. is carried out by amodification of the Newton's identity via Pade approx., formal ortho. poly. theory, and properties of symmetric poly. Finally, the optimal switching sequence is obtained by computing zeros of two formal ortho. poly. in one variable.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BC - Teorie a systémy řízení

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Industrial Electronics

ISSN

0278-0046

e-ISSN

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Svazek periodika

2010

Číslo periodika v rámci svazku

57(7)

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

16

Strana od-do

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Kód UT WoS článku

000278811000021

EID výsledku v databázi Scopus

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