Analysis of High Step-up Quasi Z-Source Based Converter with Low Input Current Ripple

Ataollah Samadian, Milad Ghavipanjeh Marangalu*, Iman Talebian, Navid Hadifar, Seyed Hossein Hosseini, Mehran Sabahi, Hani Vahedi

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

This paper presents a new high step-up Quasi Z-source-based DC-DC converter with switched boost techniques and voltage multiplier cells. Compared to the conventional Z-Source-based converters, this converter, not only can achieve High voltage gain but also, has good efficiency at high output voltage and higher output power conditions. Most of the Z-source-based converters suffer from high current stress across the power MOSFETs and the operation in lower power. However, the other important advantages include very low input current ripple, low voltage and current stress across the power switches, no duty ratio limitation, and leakage current elimination by providing the common grounded feature. So, in this topology, the null of the output is connected to the negative terminal of the input DC source, directly. therefore, the leakage current can be eliminated completely. As a result, the proposed converter is suitable for renewable energy sources (RES) applications such as photovoltaic (PV) systems. The mathematical analysis, operating principle for the proposed converter, and comparison with other converters are evaluated.

Original languageEnglish
Pages (from-to)1-21
Number of pages21
JournalIEEE Open Journal of the Industrial Electronics Society
DOIs
Publication statusAccepted/In press - 2024

Keywords

  • DC-DC converter
  • High voltage conversion
  • Low current ripple
  • voltage multiplier cell
  • Z-source

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