Analysis and design of a zero voltage transition DC-DC boost converter for photovoltaic energy system

Abstract

India being the world’s third largest power producer and consumer is still considered to have unreliable electrical infrastructure. It is estimated that about 27% of the energy generated is stolen or lost in transmission. The photovoltaic (PV) energy systems are gaining popularity because the systems are being developed and designed to extract maximum energy from the sun in most efficient way and supply it to the loads without affecting their performance.In this thesis, a boost converter operating all the switching devices under Zero Voltage Transition is studied and a model converter which can supply a load of 250W is designed and is used in a PV energy system. The comparative study between the new topology and conventional hard switching converter is analyzed in terms of improvement of efficiency and reduction of switching losses.