MULTILEVEL INVERTER WITH REDUCED NUMBER OF COMPONENTS
- In this article, a new cascaded multilevel inverter is presented.
- For the proposed inverter, two different algorithms to determine the magnitude of dc voltage sources are proposed.
- Then, in order to generate maximum numbers of output voltage levels by using 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 high number of output voltage levels by using 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 generation the positive and negative voltage levels is verified through the experimental results on a 61- level inverter.
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