Analysis of the Power Balance in the Cells of a Multilevel Cascaded H-Bridge Converter

Multilevel cascaded H-bridge (CHB) converters have been presented as a good solution for high-power applications. In this way, several control and modulation techniques have been proposed for this power converter topology. In this paper, the steady-state power balance in the cells of a single-phase...

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Bibliographic Details
Published inIEEE transactions on industrial electronics (1982) Vol. 57; no. 7; pp. 2287 - 2296
Main Authors Vazquez, Sergio, Leon, Jose I, Carrasco, Juan M, Franquelo, Leopoldo G, Galvan, Eduardo, Reyes, Manuel, Sanchez, Juan A, Dominguez, Eugenio
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Active control
Analytical models
Cascaded converters
Converters
Electric potential
Inductors
Inverters
Modulation
Multilevel
Multilevel systems
Power converters
Power supplies
Simulation
Smoothing methods
Steady-state
Thyristors
Topology
Voltage
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Summary:Multilevel cascaded H-bridge (CHB) converters have been presented as a good solution for high-power applications. In this way, several control and modulation techniques have been proposed for this power converter topology. In this paper, the steady-state power balance in the cells of a single-phase two-cell CHB is studied. The capability to be supplied with active power from the grid or to deliver active power to the grid in each cell is analyzed according to the dc-link voltages and the desired ac output voltage value. The limits of the maximum and minimum input active powers for a stable operation of the CHB are addressed. Simulation results are shown to validate the presented analysis.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2009.2034679