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Symmetrical Five Level Cascaded Multilevel Inverter With Reduced Switch for Various Unipolar PWM Strategies

C. R. Balamurugan*, S. P. Natarajan**, M. Arumugam***, R. Bensraj****

* EEE Department, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

** EIE Department, Annamalai University, Chidambaram, Tamilnadu, India.

*** EEE Department, Arunai College of Engineering, Tiruvannamalai, Tamilnadu, India.

**** EEE Department, Annamalai University, Chidambaram, Tamilnadu, India.

Periodicity:October - December'2014
DOI : https://doi.org/10.26634/jee.8.2.3044

Abstract

In this paper, a new multilevel converter which consists of only the seven switches rather than the conventional multilevel converter is analyzed. The various PWM techniques were included: APODPWM, COPWM and PSPWM, to generate the respective output voltage levels. It has many main advantages of lower harmonics, reductions in installation space and cost of inverter. The performance measures like Total Harmonic Distortion (THD), VRMS (fundamental) and V_peak are evaluated for various modulation indices. This proposed multilevel converter can be analyzed and investigated through MATLAB/SIMULINK software. Finally, compared with all PWM strategies, the COPWM and PSPWM provide higher (Fundamental) RMS voltage and APOD PWM provides lower Total Harmonic Distortion (THD) .

Keywords

PD, APOD, CO, PS, PWM, Total Harmonic Distortion.

How to Cite this Article?

Balamurugan, C. R., Natarajan, S. P., Arumugam, M., and Bensraj, R. (2014). Symmetrical Five Level Cascaded Multilevel Inverter With Reduced Switch for Various Unipolar PWM Strategies. i-manager’s Journal on Electrical Engineering , 8(2), 32-37. https://doi.org/10.26634/jee.8.2.3044

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