Investigation and implementation of a high efficient DC- AC converter for SPV applications

The paper presents an improved high efficient dc-ac converter for solar photovoltaic applications. The proposed topology consists of a dc-dc converter and dc-ac multilevel inverter configurations to attain a required voltage level to be fed into the grid. Reduced component count, high efficiency, low cost, less switching loss are some of the benefits of the proposed topology when interfaced with the utility grid. Design of filter components and performance analysis of the converter for grid applications are investigated. Simulation results using MATLAB and experimental results prove the authenticity of the derived topology.