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A High Gain Soft Switching Interleaved DC-DC Converter

Sirous TALEBI, Ehsan ADIB, Majid DELSHAD

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Summary :

This paper presents a high step-up DC-DC converter for low voltage sources such as solar cells, fuel cells and battery banks. A novel non isolated Zero-Voltage Switching (ZVS) interleaved DC-DC boost converter condition is introduced. In this converter, by using coupled inductor and active clamp circuit, the stored energy in leakage inductor is recycled. Furthermore, ZVS turn on condition for both main and clamp switches are provided. The active clamp circuit suppresses voltage spikes across the main switch and the voltage of clamp capacitor leads to higher voltage gain. In the proposed converter, by applying interleaved technique, input current ripple and also conduction losses are decreased. Also, with simple and effective method without applying any additional element, the input ripple due to couple inductors and active clamp circuit is cancelled to achieve a smooth low ripple input current. In addition, the applied technique in this paper leads to increasing the life cycle of circuit components which makes the proposed converter suitable for high power applications. Finally an experimental prototype of the presented converter with 40 V input voltage, 400 V output voltage and 200 W output power is implemented which verifies the theoretical analysis.

Publication
IEICE TRANSACTIONS on Electronics Vol.E101-C No.11 pp.906-915
Publication Date
2018/11/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E101.C.906
Type of Manuscript
PAPER
Category
Electronic Circuits

Authors

Sirous TALEBI
  Islamic Azad University
Ehsan ADIB
  Isfahan University of Technology
Majid DELSHAD
  Islamic Azad University

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