Modeling of A Single Phase 7-Level Cascaded H-Bridge Multilevel Inverter

• Main Authors: Buswig, Yonis.m.yonis, Utomo, W.M, Afarulrazi, Abu Bakar, Suhaila, Alias, Sim, S.Y., Muhammad Ikhsan, Setiawan, Mudjanarko, Sri Wiwoho, Agus, Sukoco, Taufik, Taufik
• Format: E-Article
• Language: English
• Published: Science Publishing Corporation 2018
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://ir.unimas.my/id/eprint/20512/7/Modeling%20of%20A%20Single%20Phase%207-Level%20Cascaded%20%28abstract%29.pdf; http://ir.unimas.my/id/eprint/20512/; https://www.sciencepubco.com/index.php/ijet/article/view/11704

Recently, almost all industrial devices are mostly built on electronic devices which are precisely sensitive to harmonic. In order to meet the requirement from the industries demand aimed at a free-harmonics and high power rating source is remarkably increased in past few years. An inverter which a device or electric circuit that convert direct current to alternating current is one of the electronic devices that give concern to researchers for improvement of generating a neat power source. The inverter can be categorized into a single level and multilevel inverter. As compared to single level inverter, multilevel inverter offers minimum harmonic distortion and higher power output. This paper presents a model of multilevel inverter using 7-level Cascaded H-Bridge of multilevel DC-AC inverter to reduce total harmonic distortion with different sinusoidal pulse width modulation such as phase disposition and phase opposition disposition. Simulation output of single phase multilevel inverter cascaded H-bridge are analysed and verified in the Matlab/Simulink software. The result show that the 7-level cascaded H-Bridge multilevel inverter with phase disposition technique generate less total harmonic distortion if it is compared to the phase opposition disposition technique.