Abstract
ABSTRACT This paper proposes a new generalised boost integrated multilevel inverter (MLI) with reduced components. The proposed MLI is developed by using a modified boost integrated switched capacitor unit, which provides four-level output from each cell. The operation of the proposed MLI for symmetrical 17-level operation with sinusoidal pulse width modulation & nearest level control and asymmetrical 31-level operation with NLC is explained and validated experimentally. The experimental results of static and dynamic load conditions are analysed and discussed in detail. In addition, the proposed topology is compared with recent boost MLI topologies in terms of component count, device stress, efficiency, capacitor size and cost. From the comparative study, it is evident that the proposed MLI provides features such as reduced component count, capacitors size, overall cost and improved voltage gain.
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