A New Multilevel Inverter for Grid Integration of Renewable Energy Sources

As power generation from renewable energy sources (RES) are increasing gradually, the importance of multilevel inverter is also rising day by day for the grid integration of power generated from RES. In this research, a new multilevel inverter (MLI) based on series-connected switched-sources is presented. The proposed MLI requires less number of sources and switches to produce multilevel output. The cost, size, and maintenance are reduced as well as the performance is improved due to the less number of circuit elements. In addition, the proposed MLI is capable of being connected to the grid according to IEEE standard 519. Renewable energy sources can be connected as the source of this MLI. The operation of this proposed MLI is explained by using a fifteen level inverter and the MLI model was verified by simulating in MATLAB Simulink.