MODELLING, SIMULATION AND HARDWARE IMPLEMENTATION OF SPV SYSTEM WITH MPPT ALGORITHMS

Abstract

Solar photovoltaic (PV) technology is becoming more popular because of number of advantages. These advantages include zero green house emission, low maintenance cost, least limitations with regard to site installation. However, the conversion efficiency of PV technology is very low about 15-18%. Also, the power generated from PV system is varying with meteorological parameters like solar irradiance, temperature etc. It is very important to analyse the performance of PV system under different meteorological conditions and also track the maximum power point (MPP) using MPPT technique. By keeping in the aforesaid a performance analysis of perturb and observe (P & O), incremental conductance and constant voltage MPPT techniques have been analysed and carried out in this research. When light falls on solar panel it produces a DC voltage, this can be directly used for DC applications or can be converted to AC by using an inverter that is then applied directly to the commercial electrical grid or to a local, off-grid electrical network. Second objective of this work is to design and develop a single phase grid connected PV system with different control algorithms. A three phase grid connected system also designed and developed with adaptive notch filter based grid synchronization technique for providing active and reactive power to the load and utility grid. A lab scale hardware setup is also developed with solar panel, boost converter and inverter for the purpose of performance analysis of various MPPT techniques and developed control schemes of single phase H bridge inverter.