Simulink Modeling and Analysis of Grid connected PV System

V.Ch.S.N. Lavanya; G Janardhan

V.Ch.S.N. Lavanya M.Tech Student, CVR College of Engineering, EEE Department, Hyderabad, India.
G Janardhan Asst.Professor, CVR College of Engineering, EEE Department, Hyderabad, India.

Abstract

Due to lack of abundant availability of conventional energy sources, energy demand across the world met by renewable energy and is harnessed from natural resources such as sunlight, wind, rain, tides and geothermal heat which can be replenished. This paper gives the simulink modeling and analysis of grid connected Photo Voltaic (PV) system. Incremental conductance Maximum Power Point Tracking (MPPT) technique used to track maximum power from PV and is connected to boost converter to boost the voltage to maintain the voltage from PV. A two level inverter is used for DC to AC conversion with Pulse-Width Modulation (PWM) control. To synchronize the grid to solar PV at certain phase angle and frequency, Phase-Lock-Loop (PLL) technique used. Control circuit is designed to supply the power according to the load variations.