Multi-Level Cascaded H-Bridge Inverter Based on Three Harmonic Injection Method

Man Yuan Ye; Song Li

doi:10.4028/www.scientific.net/AMR.986-987.1969

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 986-987Multi-Level Cascaded H-Bridge Inverter Based on...

Multi-Level Cascaded H-Bridge Inverter Based on Three Harmonic Injection Method

Abstract:

This paper introduces seven-level Cascaded H-bridge (CHB) inverter and work principle. Then, the strongpoint and disadvantage of multi-level inverter usual PWM technologies are analyzed and compared. We find that multi-level cascaded inverter based on three harmonic injection method have two advantages via analysis. The voltage modulation index can increase 1.15. The equivalent switching frequency of H-bridge inverter’s load voltage is N times of each cell switching frequency. At last, H-bridge inverter was investigated with simulation and experiment. The results prove that the analysis is correctness and validity.

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Periodical:

Advanced Materials Research (Volumes 986-987)

Pages:

1969-1972

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.986-987.1969

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Online since:

July 2014

Authors:

Man Yuan Ye*, Song Li

Keywords:

Cascaded H-Bridge, Harmonic Distortion, Three Harmonic Injection Method

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