Interleaved Boost Converter with Voltage Multiplier Module for High Voltage Gain

Abstract

An Interleaved Boost Converter (IBC) with built-in transformer is suitable for renewable energy system, which requires high step up conversion ratio. In order to obtain high gain, a built-in transformer voltage multiplier module inserted into each phase of conventional interleaved boost converter. The voltage multiplier cell is composed of built-in transformer windings, diodes and small capacitors. In the proposed paper, a voltage multiplier module is incorporated in the interleaved boost converter along with built in transformer. The Voltage multiplier module is efficient, low cost and simple topology composed of switched capacitors and diodes to obtain high DC output voltage. The current distribution reduces the conduction losses by lower effective current. The proposed IBC with multiplier module is designed for input voltage of 48V, an output voltage of 510V. The proposed IBC with voltage multiplier module is analyzed and simulated for high voltage gain using MATLAB Simulink. The performance of the proposed converter is verified through simulation for the designed parameters.