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Multi-module cascaded multi-level inverters are more and more widely used in high voltage and large power industrial applications. Its unique topological structure requires multi-channel drive pulse. Therefore, generating multi-channel drive pulse becomes one of the key issues. This paper presents a digital implementation method, which combines double and multicarrier horizontal phase shift PWM modulation...
Three-level inverter is widely used in high voltage and high power occasions. In this paper, different modulation strategies used in three-level inverter are studied and analyzed. The harmonic characteristics of different modulation strategies were compared, and the respective relationship of harmonic characteristic, modulation degree and total harmonic distortion in different modulation strategies...
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