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All Journal Bulletin of Electrical Engineering and Informatics
Haridarshan S. Sonawane
Government of Maharashtra
Electrical & Electronics Engineering

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Investigative uses of overmodulation techniques in modular multilevel cascaded converter Mohan P. Thakre; Jayesh A. Gangurde; Rakesh Shriwastava; Deepak P. Kadam; Sunil Somnath Kadlag; Haridarshan S. Sonawane
Bulletin of Electrical Engineering and Informatics Vol 11, No 6: December 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v11i6.3958

Abstract

Sinusoidal pulse width modulation (SPWM) is a method to generate the switching gate pulse of the converter. Overmodulation is a method where the modulation index exceeds the unity value and the system goes into the nonlinear region. To maintain the system in a linear region when operating in the overmodulation region, some techniques are developed. These techniques helped to operate the system in the linear range. Medium and high-power energy conversion systems mostly use a modular multilevel cascaded converter (MMCC), which has been an issue improving significantly in recent years. In this article, MMCC-based overmodulation techniques are compared with conventional PWM and analyzed on DC bus utilization (DBU), and total harmonic distortion (THD). MATLAB/Simulink digital platform used demonstrate overmodulation technique.
Co-Authors Deepak P. Kadam Jayesh A. Gangurde Mohan P. Thakre Rakesh Shriwastava Sunil Somnath Kadlag