Three phase grid connceted pv system using incremental conductance method

The goal of this project papers is to study the whole three phase grid connected system fed by PV panel using an MPPT algorithm to feed the maximum available power at different environmental conditions and to implement the same in Matlab/Simulink. Firstly, boost converter and MPPT implementation and secondly, the grid-side inverter and grid interconnection fed by a DC source. In the first part, the PV array was simulated in Matlab/Simulink and various tests carried out to determine the dependence of IV and PV curves on irradiance and temperature. Further on, simulations were done to accomplish Maximum Power Point Tracking (MPPT) using incremental conductance method (INC). In the second part, the three phase grid voltage was sensed and operated on by SRF-PLL algorithm to obtain grid frequency and angle. Corresponding to this information, Space Vector Modulation was implemented on a three phase inverter with DC source as input. The output of the inverter was filtered and fed to the grid using an interfacing step-up transformer.