Implementation and Analysis of Multi-String Multilevel Inverter for Improved Performance |
Author(s): |
| K Durgadevi , JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY KAKINADA; Jagannadham Lahori, GANDHIJI INSTITITUTE OF SCIENCE AND TECHNOLOGY |
Keywords: |
| Space Vector Control, Space Pulse Width Modulation, Multistring Multilevel Inverter, Total Harmonic Distortion |
Abstract |
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The multilevel inverter collectively converts the several levels of dc voltage to a desired ac voltage. Multilevel inverter incorporates various pulse-width modulation Strategies. The unique structure of multilevel inverters allows them to reach nearer to sinusoidal i.e. with low harmonics. As the number of voltage levels increases, the harmonic content of the output voltage waveform decreases. The increase of voltage levels with low ratings of individual devices can increase the power rating. The Simulated results of sinusoidal pulse width modulation and space vector control for Cascaded multilevel inverter and Proposed modified cascaded multilevel inverter using continuous and SPWM techniques. The Total harmonic distortion (THD) of both topologies has been compared. Proposed seven level multilevel inverter reduces voltage and current THD. |
Other Details |
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Paper ID: IJSRDV6I50406 Published in: Volume : 6, Issue : 5 Publication Date: 01/08/2018 Page(s): 745-749 |
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