Unique Modular Structure of Multi-Cell High-Boost Converters with Reduced Component Currents

Guidong Zhang, Zhiyang Wang, Herbert Ho Ching Iu, Si zhe Chen, Yuanmao Ye, Bo Zhang, Yun Zhang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The traditional switched-inductor technique for high-step-up conversion is widely utilized in industrial applications, especially, multi-cell technique is combined to realize ultra high voltage. However, the component currents are accordingly increasing with the increasing number of cells, which results in high-cost, low-efficiency and low-stability. In order to solve these problems, an improved multi-cell structure of switched-inductor is devised, which can be utilized to replace traditional switched-inductor cells for higher actual boost ratio and lower diode currents. An example of the proposed structure based boost converter is demonstrated for a detailed analysis, and it is followed with a comparison to verify its features. Finally, simulations and experiments are conducted to validate the effectiveness.

Original languageEnglish
Pages (from-to)7795-7804
JournalIEEE Transactions on Power Electronics
Volume33
Issue number9
DOIs
Publication statusPublished - 2018

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