A Symmetric 9 – Level Multilevel Inverter with Minimum Number of Device
Datar Singh Nathawat1, Vishnu Goyal2
1Datar Singh Nathawat, Department of Electronics & Communication Engineering, Manipal University Jaipur, Jaipur (Rajasthan), India.
2Prof. Vishnu Goyal, Department of Electric and Electronic Engineering, Manipal University Jaipur, Jaipur (Rajasthan), India.
Manuscript received on 15 June 2016 | Revised Manuscript received on 25 June 2016 | Manuscript Published on 30 June 2016 | PP: 15-18 | Volume-6 Issue-1, June 2016 | Retrieval Number: A2317066116/16©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this paper, an improved technique for Multilevel Inverter. The improved technique using less number of switches than conventional Cascade H- Bridge topology which enhances system performance decreases system complexity and also reduces total cost of the inverter. The main objective of this paper is to increase figure of output level by reducing number of power switches without any complexity in the circuit. The merit of this improved modified technique is to reduce THD and High output voltage level. Multicarrier PWM based techniques used for controlling, firing circuit of switching device. In this paper comparison between proposed improved technique and conventional cascaded H-Bridge inverter done. The number of output voltage level is nine. Simulation is done in MATLAB 2010b environment and the waveforms are obtained. The results are analysed using MATLAB/SIMULINK software.
Keywords: Multicarrier PWM (MC-PWM), Cascaded H-Bridge, THD, Reduced Switches.
Scope of the Article: Optical Devices