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Optimum Structures of Proposed New Cascaded Multilevel Inverter With Reduced Number of Components | IEEE Journals & Magazine | IEEE Xplore

Optimum Structures of Proposed New Cascaded Multilevel Inverter With Reduced Number of Components


Abstract:

In this paper, a new cascaded multilevel inverter is proposed. For the proposed inverter, two different algorithms to determine the magnitude of the dc voltage sources ar...Show More

Abstract:

In this paper, a new cascaded multilevel inverter is proposed. For the proposed inverter, two different algorithms to determine the magnitude of the dc voltage sources are proposed. Then, in order to generate maximum numbers of output voltage levels by using a constant number of power switches and/or dc voltage sources, several optimum structures of the proposed inverter are obtained. In comparison with the conventional cascaded multilevel inverters, the proposed inverter is able to generate a high number of output voltage levels by using a lower number of power electronic devices such as power switches, driver circuits, power diodes, and dc voltage sources. In addition, the low amount of blocked voltage by switches is another advantage of the proposed inverter. The accuracy performance of the proposed inverter in generating the positive and negative voltage levels is verified through the experimental results on a 61-level inverter.
Published in: IEEE Transactions on Industrial Electronics ( Volume: 62, Issue: 11, November 2015)
Page(s): 6887 - 6895
Date of Publication: 25 May 2015

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