Comparação das Modulações Phase-Shift e por Síntese de Formas de Onda Quase-Quadradas Aplicadas ao Inversor Multinível em Cascata Simétrico
(Comparison of Phase-Shift and Step Wave Modulation Technique applied to Symmetrical Cascaded Multilevel Inverter)
Diorde Alex Báo Zambra (email@example.com)1, José Renes Pinheiro (firstname.lastname@example.org)2
1Universidade de Caxias do Sul2Universidade Federal de Santa Maria
This paper appears in: Revista IEEE América Latina
Publication Date: Sept. 2013
Volume: 11, Issue: 5
This paper presents a comparison between the phase-shift and the step wave modulation techniques applied to symmetrical cascaded multilevel inverter. Initially, the phase-shift modulation and a simple method to determine the switching angles used to generate a step pulse waveform are presented. Performance indices as harmonic spectrum, total harmonic distortion, common mode voltage, power losses in semiconductors devices and first/second distortion factors are analyzed to demonstrate the performance of these modulation techniques. The modulation strategy that presents more advantages is implemented in FPGA and the experimental results are presented.
Adjustable speed drive, Modulation strategy, Multilevel converters,
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