Abstract
Implementing voltage boost multilevel inverter topologies for PV and fuel cell energy sources is highly advantageous. Switched-capacitor multilevel inverters (SCMLI) have a step-up feature with low device requirements and can remove the need for high gain dc-dc converters leading to reduced overall system bulk. This work proposes a dual input SCMLI to achieve an output of nineteen levels while using a low number of components and high boosting factor and self-balancing of capacitor voltages. A comprehensive analysis of the proposed structure is presented, focusing on component requirements, cost and dynamic performance. The efficiency and loss distribution during operation is also provided. The operation and real-time performance of the SCMLI have been verified by simulation. Experimental results further validate the simulation results.
Highlights
Implementing voltage boost multilevel inverter topologies for PV and fuel cell energy sources is highly advantageous
Since many renewable power sources are composed of numerous low-voltage dc sources such as solar photovoltaic cells, ultra-capacitors, or battery storage systems, they are ideal for forming multiple connected dc-links
The reduced harmonic content, reduced individual device ratings and the filter size are some of the attributes of multilevel inverters (MLIs)
Summary
Mohammad Fahad 1 , Mohd Tariq 1, * , Mohammad Faizan 1 , Atib Ali 1 , Adil Sarwar 1, * , Hossein Dehghani Tafti 2 , Shafiq Ahmad 3 and Adamali Shah Noor Mohamed 4.
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