Control of a single-phase cascaded H-bridge active rectifier under unbalanced load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F18%3A43932478" target="_blank" >RIV/49777513:23220/18:43932478 - isvavai.cz</a>

Výsledek na webu

<a href="http://ieeexplore.ieee.org/document/8024080/" target="_blank" >http://ieeexplore.ieee.org/document/8024080/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TPEL.2017.2748218" target="_blank" >10.1109/TPEL.2017.2748218</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Control of a single-phase cascaded H-bridge active rectifier under unbalanced load

Popis výsledku v původním jazyce

Cascaded H-bridge (CHB) converter technology is actually the most popular solution for grid connected converters in both medium- and high-voltage applications. This paper introduces a new control of a single-phase CHB active rectifier. The control uses a direct grid current control based on adaptive resonant controllers. The resonant controllers are adapting to slow fiuctuation of ac grid frequency. The challenging problem of CHB converters is dc-link capacitor voltage balancing especially under unbalanced load conditions. This paper presents reliable voltage balancing technique utilizing energy estimation of particular dc-link capacitor banks and simple prediction of the changes of their energies. A nonlinear behavior of converter caused by power semiconductors voltage drops and dead-time effects is minimized by auxiliary adaptive resonant controllers. The resulting control has very good performance, including the operation under unbalanced load conditions, and achieves low total harmonic distortion (THD) of converter grid current. The theoretical results were verified by experiments made on developed CHB active rectifier prototype with three power cells in cascade.

Název v anglickém jazyce

Control of a single-phase cascaded H-bridge active rectifier under unbalanced load

Popis výsledku anglicky

Cascaded H-bridge (CHB) converter technology is actually the most popular solution for grid connected converters in both medium- and high-voltage applications. This paper introduces a new control of a single-phase CHB active rectifier. The control uses a direct grid current control based on adaptive resonant controllers. The resonant controllers are adapting to slow fiuctuation of ac grid frequency. The challenging problem of CHB converters is dc-link capacitor voltage balancing especially under unbalanced load conditions. This paper presents reliable voltage balancing technique utilizing energy estimation of particular dc-link capacitor banks and simple prediction of the changes of their energies. A nonlinear behavior of converter caused by power semiconductors voltage drops and dead-time effects is minimized by auxiliary adaptive resonant controllers. The resulting control has very good performance, including the operation under unbalanced load conditions, and achieves low total harmonic distortion (THD) of converter grid current. The theoretical results were verified by experiments made on developed CHB active rectifier prototype with three power cells in cascade.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/LO1607" target="_blank" >LO1607: RICE – Nové technologie a koncepce pro inteligentní průmyslové systémy</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Power Electronics

ISSN

0885-8993

e-ISSN

—

Svazek periodika

33

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

5519-5527

Kód UT WoS článku

000426014100080

EID výsledku v databázi Scopus

2-s2.0-85029167797