Analysis of Maximum power Point Tracking in Solar Photovoltaic System

Chhaya Bareth, Shailesh M Deshmukh

MPPT algorithms, solar energy, Review.

This paper presents a grid synchronization technique based on adaptive notch twist for SPV (Solar Photovoltaic) system along with MPPT (Maximum Power Point Tracking) techniques. An efficient grid synchronization technique offers capable detection of various components of grid signal like phase and frequency. It also acts as a obstruction for harmonics and other turbulence in grid signal. A reference phase signal synchronized with the grid voltage is provided by the grid synchronization technique to standardize the system with grid codes and power quality standards. Hence, grid synchronization unit plays important role for grid connected SPV systems. As the output of the PV array is variable in nature with the meteorological parameters like irradiance, temperature and wind etc. In order to maintain a constant DC voltage at VSC (Voltage Source Converter) input, MPPT control is required to track the maximum power point from PV array. In this work, a variable step size P & O (Perturb and Observe) MPPT technique with DC/DC boost converter has been used at first stage of the system.