Step-Up High Performance High Interlace Converter with Renewable Energy System Voltage Multiplier

Abstract

The main aim of this project is analysis and design of interleaved converter for grid connected solar applications. The system proposes a voltage multiplier module composed of switched capacitors and coupled inductors, A conventional interleaved boost converter obtains high step-up gain without operating at extreme duty ratio. The configuration of the proposed converter not only reduces the current stress but also constrains the input current ripple, which decreases the conduction losses and lengthens the lifetime of the input source. In addition, due to the lossless passive clamp performance, leakage energy is recycled to the output terminal. Hence, large voltage spikes across the main switches are alleviated , and the efficiency is improved.