Performance Analysis of Parallel Boost Micro-Inverter for Solar PV Grid Integration

Energy demand has been increasing rapidly across the globe. Present sources of energy are exhaustible, and supply is becoming limited. Therefore, there is an urgent need to conserve available resources and make as much use of energy as possible. Performance analysis of a Parallel Boost Micro Inverter for Solar PV Grid Integration is presented in this paper. Here, an improved DC to DC converter method has been implemented. This enhanced principle generates two isolated DC sources that can be inverted separately and connected in series with a high voltage step ratio or in parallel for applications with voltage source converters. The system simulation is built with the help of MATLAB / SIMULINK. State Space Modeling is performed to check the stability of the designed Parallel Boost Converter system. Inverting using SPWM technique is performed with unipolar and bipolar switching topologies for performing Harmonic content comparison. The SPWM method improves the efficiency and reduces the total harmonics distortion in the output voltage. The work can be used with Photovoltaic cell as grid integrated micro inverter, where no battery is associated. PV micro inverter not only focuses on the efficiency and cost but also on reliability.