Modulation signal analysis and parameter selection for modular multi-level converters with harmonic injection method

2020 ◽  
Vol 20 (2) ◽  
pp. 455-465
Author(s):  
Qifan Zeng ◽  
Fei Xiao ◽  
Qiang Ren ◽  
Sheng Ai
2014 ◽  
Vol 986-987 ◽  
pp. 1969-1972 ◽  
Author(s):  
Man Yuan Ye ◽  
Song Li

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.


2015 ◽  
Vol 32 (10) ◽  
pp. 1898 ◽  
Author(s):  
Younes Benkarroum ◽  
Gabor T. Herman ◽  
Stuart W. Rowland

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