Grid-Tied Single Phase Dual Stage Solar Power Inverter With Phase Lock Loop

This paper deals with a control grid-connected single-phase solar photovoltaic (PV) using MPPT and a phase lock loop (PLL). MPPT is implemented in this paper, it maintains continuous voltage at the output of DCDC. Phase-locked loop (PLL) is a method that is used in solar photovoltaic panels to synchronize the output voltage and phase with a connected grid. It is a closed loop control system that generates a power supply with phase and frequency that is related to the user input power means grid supply. PLLs have a very wide range of applications, which includes clock generation, frequency synthesis, and modulation in inverters used for DC to AC conversion. A PLL is used to match the frequency of an output inverter to the frequency of the grid used in a household.