标题：Cascaded H-Bridge Multilevel Inverter with a New Selective Harmonic Mitigation Technique to Meet Grid Codes Under Non-Equal Dc Link Voltages with Power Quality Enhancement
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：9
页码：15857
DOI：10.15680/IJIRSET.2014.0309010
出版社：S&S Publications
摘要：This paper presents a new control technique to meet the grid codes in cascaded multilevel inverters. Inthis paper a new selective harmonic mitigation (SHM-PWM) technique to produce waveforms with low switchingfrequency without compromising waveform quality, which is capable of meeting grid codes even under non equal dclink voltages. In this paper by maintaining voltage balancing and reducing the total harmonic distortion we can achievethe enhancement of power quality with unequal dc sources. This paper also focuses on the method to enhance thepower quality of individual cells which leads to higher power conversion efficiency with equal power distribution. Thisreduces the initial cost, and complexity hence it is apt for industrial applications. Simulation work is done using theMATLAB software and experimental results have been presented to validate the theory.
关键词：Cascaded multilevel inverter; SHM technique; Grid codes; Voltage balancing; Power quality;enhancement.
