Power Electronic Interface for Low Voltage DC Link Using Photovoltaic Cells with ANN based MPPT

Abstract

The aim of this paper is to design and develop low voltage direct current system within building structures to cater to low power load demands like LED lights, BLDC fans, desktops computers etc. The intended system comprises of a solar panel, a buck converter, a battery and a boost converter. The output of boost converter will be 48 V direct current which can cater to loads below 1 kw. The buck converter regulates the output of solar panel to constant voltage, which is stored in a battery and boosted to 48 V direct current as per household requirements. The proposed system will simplify the transmission and distribution of energy by ensuring direct current supply to appliances which are devised to run on the same. This will rule out the need for rectifier within household appliances, thereby reducing their size and cost. The future scope of this project lies in the fact that the entire system can be integrated into a module which can be used in inaccessible and rural areas by dint of a solar panel that will serve as source and the output of module will be 48V which can be directly used for household purposes. The concept of artificial neural network is incorporated for maximum power point tracking, maintaining constant output voltage.