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RESEARCH PRODUCT

A Novel Symmetrical Boost Modulation Method for qZS-based CHB Inverters

Frede BlaabjergFabio ViolaGiuseppe SchettinoVincenzo CastigliaYongheng YangRosario Miceli

subject

Computer scienceContext (language use)02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici7. Clean energy01 natural sciencesHarmonic analysisharmonics0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectronic engineeringquasi-Z source cascaded H-Bridge multilevel invertersMATLABcomputer.programming_language010302 applied physics020208 electrical & electronic engineeringConvertersGridboost methodgrid-connected applicationcomputerPhase modulationPulse-width modulationPV systemVoltage

description

Quasi-Z-source cascaded H-bridge (qZS-CHB) inverters are arising as an innovation in the field of the electrical conversion for PV applications. This type of converters inherit the advantages of multilevel inverters and single-stage configuration. In this context, this paper proposes a novel symmetrical boost modulation strategy for qZS CHB multilevel inverters to increase the performance in terms of voltage stresses and power quality. The novelty lies in the adoption of a different concept to generate the shoot-through states compared to the traditional methods. Simulation analysis in a grid connected application to evaluate the benefits of this boost method is performed in the MATLAB/PLECS co-simulation platform.

yearjournalcountryeditionlanguage
2020-11-012020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL)
https://doi.org/10.1109/compel49091.2020.9265660