dc.contributor.author | Akhmetov, Zhansen | |
dc.contributor.author | Hammami, Manel | |
dc.contributor.author | Grandi, Gabriele | |
dc.contributor.author | Ruderman, Alex | |
dc.date.accessioned | 2019-04-25T05:53:32Z | |
dc.date.available | 2019-04-25T05:53:32Z | |
dc.date.issued | 2019-01-30 | |
dc.identifier.citation | Akhmetov, Z.; Hammami, M.; Grandi, G.; Ruderman, A. On PWM Strategies and Current THD for Single- and Three-Phase Cascade H-Bridge Inverters with Non-Equal DC Sources. Energies 2019, 12, 441. | en_US |
dc.identifier.uri | http://dx.doi.org/10.3390/en12030441 | |
dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/3842 | |
dc.description.abstract | Cascade H-bridge (CHB) inverter is an attractive choice for integration of DC sources of different nature, e.g., for distributed generation with energy storage, photovoltaic generation, etc. In general, non-equal DC voltage sources can affect the total harmonic distortion (THD) of the CHB by introducing undesirable low-frequency subharmonics. This paper investigates different level-shifted (LS) and phase-shifted (PS) pulse width modulation (PWM) strategies for single- and three-phase cascade H-bridge inverters with non-equal DC sources from the load current THD minimization perspective. The best current quality is provided by LS PWM, as reported in the literature. The paper provides a simple time domain explanation of LS PWM superiority. However, PS PWM may be a preferable choice for practical applications due to fair power and loss sharing across individual H-bridges. The paper explains how to obtain the best current quality by PS PWM carriers’ order arrangement (DC sources switching sequence selection). | en_US |
dc.language.iso | en | en_US |
dc.publisher | MDPI | en_US |
dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
dc.subject | multilevel inverters | en_US |
dc.subject | total harmonic distortion | en_US |
dc.subject | level-shifted PWM | en_US |
dc.subject | phase-shifted PWM | en_US |
dc.title | On PWM Strategies and Current THD for Single- and Three-Phase Cascade H-Bridge Inverters with Non-Equal DC Sources | en_US |
dc.type | Article | en_US |
workflow.import.source | science |
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