An Analysis of Interleaved High Gain DC-DC Converter with Voltage Multiplier
Abstract
DC power distribution is an appealing prospect in many applications, including telecommunications, data centres, commercial buildings and microgrids. A dc-dc power converter for high gain may utilised to independently link low voltage components like solar panels, fuel cells and batteries to the 400 V dc voltage bus. In this study, a comparative analysis of some of the existing topologies and their construction is presented. Next, a non-isolated high voltage gain interleaved converter with voltage multiplier is introduced. This converter offer a voltage gain of 20 and to step up a 20 V input to 400 V output. It can draw power from a single source as well as from two independent sources and continuous input current in both cases. The voltage multiplier creates extra boost in high voltage gain under same duty cycle and similar turns ratio. Moreover, the proposed converter is symmetric, the semiconductor components experience same voltage and current stresses which therefore reduces the effort and time spent in the component selection during the system design. The converters presented are extremely efficient and modular. The results are provided handling operating modes, dc voltage gain, and design processes of the converter. A 200 W, 0.5 A simulation model is proposed to validate the design. The results obtained from the simulation agree with the required ratings.
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