High-Gain Compact Interleaved Boost Converter With Reduced Voltage Stress for PV Application

This article proposes an interleaved, highly efficient, high-gain modified boost converter. High-gain and transformerless converter operation makes the converter suitable for integrating photovoltaic (PV) power to standalone dc microgrid. A coupled inductor is used with two diodes and one switch per...

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Bibliographic Details
Published inIEEE journal of emerging and selected topics in power electronics Vol. 10; no. 4; pp. 4763 - 4770
Main Authors Singh, Kumar Abhishek, Prajapati, Ashish, Chaudhary, Kalpana
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.08.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Boost converter
Capacitors
Clamping
coupled inductor
DC-DC power converters
Distributed generation
high efficiency
High gain
Inductors
interleaved
Low voltage
Microgrids
Photovoltaic cells
Stress
Switches
Topology
voltage stress reduction
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Summary:This article proposes an interleaved, highly efficient, high-gain modified boost converter. High-gain and transformerless converter operation makes the converter suitable for integrating photovoltaic (PV) power to standalone dc microgrid. A coupled inductor is used with two diodes and one switch per phase with a common clamping capacitor to modify the conventional boost converter. The common clamping capacitor and the coupled inductor reduce the converter's component count and size; thus, high efficiency is achieved at a low cost. The proposed converter achieves a high step-up gain and low voltage stress on switches. Interleaved converters are deemed ideal for PV power extraction as they exhibit low input current ripple. A 900-W prototype of a two-phase interleaved modified boost converter is designed and developed to verify the working principle of the converter and performance testing.
ISSN:2168-6777
2168-6785
DOI:10.1109/JESTPE.2021.3120802