Control of a single-phase cascaded H-bridge active rectifier under unbalanced load
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Control of a single-phase cascaded H-bridge active rectifier under unbalanced load
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/LO1607" target="_blank" >LO1607: RICE - New technologies and concepts for smart industrial system</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Power Electronics
ISSN
0885-8993
e-ISSN
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Volume of the periodical
33
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
5519-5527
UT code for WoS article
000426014100080
EID of the result in the Scopus database
2-s2.0-85029167797