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RESEARCH PRODUCT

Investigation about selective harmonic elimination in unbalanced multilevel inverters

Buccella C.Cimoroni M. G.Cecati C.Di Tommaso A. O.Nevoloso C.Schettino G.Meo S.

subject

l-level Cascaded H-bridges (CHB) InvertersPower QualityTotal Harmonic Distortion (THD)Power Quality; Selective Harmonic Elimination (SHE); Total Harmonic Distortion (THD); l-level Cascaded H-bridges (CHB) Invertersl-level Cascaded H-bridges (CHB) InverterSelective Harmonic Elimination (SHE)

description

In this paper 5 and 7 levels cascaded H-bridges inverters are considered, feeding by unequal dc voltage sources. The effect of these unbalancing operation is examined concerning harmonic analysis and total harmonic distortion of the output voltages. The system of equations, obtained by the expansion in the Fourier series of phase output voltage, is solved by applying a method of graphic solution that allows obtaining the switching angles able to eliminate the lower order harmonics.

yearjournalcountryeditionlanguage
2022-06-14
10.1109/melecon53508.2022.9842998https://hdl.handle.net/11588/918485