Simulation and analysis of grid connected SPV system using eleven-level cascaded H-bridge multilevel inverter systems

Various advantages of Multiple-Level Inverter (MLI) allow this technology to have numerous applications. In this paper, a topology for eleven level MLI setup for medium-voltage with superior performance has been proposed. This topology is capable to interface with a Solar Photovoltaic (SPV) module which ultimately generates power to connected grid. Thus, the system is designed to distribute solar energy to the grid. MLI topology consisting of twenty switches is interfaced with grid and a cascaded transformer is fed from a SPV as DC source. MATLAB simulations are conducted for the SPV grid and cascaded transformer connected grid to the eleven-level Cascaded H-bridge (CHB) MLI system. The paper examines various output characteristics at various coupling points of SPV, grid, and MLI. Finally, the outcomes from the simulation confirm the working of proposed MLI “design configuration” and “control technique” under different stochastic conditions.