• Dr. Vijayasamundiswary S

Multilevel inverters (MLIs) are essential for achieving superior power quality output and higher power ratings through reduced harmonic distortion. Cascaded multilevel inverters are frequently used because of their ease of manufacture and control. This paper focuses on MLI with minimal switches to attain a lower harmonic distortion with a greater output levels. Even so, the harmonic content can be reduced with the right choice of pulse width modulation (PWM) approaches. The goal is to introduce a new carrier-based PWM control method for a new single phase MLI switches. Better fundamental output voltage and outstanding spectrum quality are obtained from the updated version of Multi Carrier PWM (MCPWM). The main goal is to design a new MCPWM layout by altering the carrier signal which has an M-W shape, is referred to as an M-W PWM technique that generates less distortion of harmonics at low switching frequencies. The suggested novel carrier signal focuses on analyzing its application in a power circuit that functions in both symmetrical and asymmetrical configurations for a decreased MLI. The methodology considers the suggested carrier-based modulation strategy in response to an enhanced output voltage spectrum and uses MATLAB simulation to ascertain performance.

Cascaded multilevel inverter, Multi Carrier PWM, Harmonic distortion, M-W PWM technique

"Analysis of minimal switch count cascaded multilevel inverter with modified carrier approach for power quality enhancement", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 1, page no.g438-g445, January-2024, Available :http://www.jetir.org/papers/JETIR2401652.pdf

"Analysis of minimal switch count cascaded multilevel inverter with modified carrier approach for power quality enhancement", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 1, page no. ppg438-g445, January-2024, Available at : http://www.jetir.org/papers/JETIR2401652.pdf