Design of High Efficiency Converter Fed Induction Motor Using Hybrid Renewable Energy System

Abstract

This work presents a new system configuration of the front-end converter stage for a hybrid wind/photovoltaic energy system. The aim of this project is to implement the high efficiency converter for the wind and solar hybrid system. In proposed system, consists of bridgeless SEPIC and converters zeta and mppt controllers both the sources to supply the load separately or simultaneously depending on availability. For the hybrid system, extracting as much energy from the wind and solar as possible and feeding the load with high quality electricity are the two targets. when a voltage disturbance occurs in distribution the system and it stays connected to the main grid boosting the DC voltage to a sufficient level using the converter and obtaining pure AC voltage from the inverter are the keys to realize the above targets. this configuration allows the two sources to supply the load separately or simultaneously, depending on the availability of the energy sources. The inherent nature of the zeta- bridgeless SEPIC converter is that additional input filters are not necessary to filter out high frequency harmonics. This project describes the closed loop mechanism of the zeta and bridgeless SEPIC converter, and the simulated result are presented