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Multilevel inverters are an attractive solution in the medium-voltage and high-power applications. However in the low-power range also it can be a better solution compared to two-level inverters, if MOSFETs are used as devices switching in the order of 100 kHz. The effect of clamping diodes in the diode-clamped multilevel inverters play an important role in determining its efficiency. Power loss introduced...
A three-level inverter scheme with common-mode voltage elimination and reduced power device count for dual inverter-fed open-end winding induction motor is proposed. The open-end winding induction motor is fed by two three-level inverters, formed by cascading two two-level inverters, from both sides. These two three-level inverters share the top inverter, thereby reducing the power device count. The...
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