High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage Lift

In this paper, a non-isolated high step-up interleaved DC-DC converter for distributed generation applications such as solar cells and fuel cells. The proposed converter mixes the benefits of magnetic coupling, voltage multiplier, and voltage lift techniques to conventional interleaved schemes. The...

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Main Authors: Sang-Wha Seo, Dong-Kuk Lim, Han Ho Choi
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9049394/
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author Sang-Wha Seo
Dong-Kuk Lim
Han Ho Choi
author_facet Sang-Wha Seo
Dong-Kuk Lim
Han Ho Choi
author_sort Sang-Wha Seo
collection DOAJ
description In this paper, a non-isolated high step-up interleaved DC-DC converter for distributed generation applications such as solar cells and fuel cells. The proposed converter mixes the benefits of magnetic coupling, voltage multiplier, and voltage lift techniques to conventional interleaved schemes. The proposed converter's voltage lift technique can increase the voltage gain while guaranteeing low voltage stress of the switches. And the magnetic coupling method can combine the switched capacitor of the voltage multiplier technique with the lossless clamp circuit to achieve high voltage gain and reuse the leakage inductance energy to the output terminal. In addition, this leakage inductance energy can achieve zero current switching turn on soft switching performance and mitigate the output diode reverse recovery problem. The proposed converter avoids the extreme duty cycles that cause conduction losses in power devices and can give very low voltage stresses. Therefore, the use of low voltage rated MOSFETs and diodes not only reduces switching losses and costs, but also improves efficiency.
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spelling doaj.art-8f3e867947364417b093ba5d15a4131c2022-12-21T20:29:03ZengIEEEIEEE Access2169-35362020-01-018727687278010.1109/ACCESS.2020.29837579049394High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage LiftSang-Wha Seo0https://orcid.org/0000-0003-3336-812XDong-Kuk Lim1https://orcid.org/0000-0002-9612-263XHan Ho Choi2https://orcid.org/0000-0003-0940-9876System Research Team, Korea Railroad Research Institute, Seoul, South KoreaSchool of Electrical Engineering, University of Ulsan, Ulsan, South KoreaDivision of Electronics and Electrical Engineering, Dongguk University, Seoul, South KoreaIn this paper, a non-isolated high step-up interleaved DC-DC converter for distributed generation applications such as solar cells and fuel cells. The proposed converter mixes the benefits of magnetic coupling, voltage multiplier, and voltage lift techniques to conventional interleaved schemes. The proposed converter's voltage lift technique can increase the voltage gain while guaranteeing low voltage stress of the switches. And the magnetic coupling method can combine the switched capacitor of the voltage multiplier technique with the lossless clamp circuit to achieve high voltage gain and reuse the leakage inductance energy to the output terminal. In addition, this leakage inductance energy can achieve zero current switching turn on soft switching performance and mitigate the output diode reverse recovery problem. The proposed converter avoids the extreme duty cycles that cause conduction losses in power devices and can give very low voltage stresses. Therefore, the use of low voltage rated MOSFETs and diodes not only reduces switching losses and costs, but also improves efficiency.https://ieeexplore.ieee.org/document/9049394/High voltage gainmagnetic couplingnon-isolatedvoltage lift (VL) techniquezero current switching (ZCS)
spellingShingle Sang-Wha Seo
Dong-Kuk Lim
Han Ho Choi
High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage Lift
IEEE Access
High voltage gain
magnetic coupling
non-isolated
voltage lift (VL) technique
zero current switching (ZCS)
title High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage Lift
title_full High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage Lift
title_fullStr High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage Lift
title_full_unstemmed High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage Lift
title_short High Step-Up Interleaved Converter Mixed With Magnetic Coupling and Voltage Lift
title_sort high step up interleaved converter mixed with magnetic coupling and voltage lift
topic High voltage gain
magnetic coupling
non-isolated
voltage lift (VL) technique
zero current switching (ZCS)
url https://ieeexplore.ieee.org/document/9049394/
work_keys_str_mv AT sangwhaseo highstepupinterleavedconvertermixedwithmagneticcouplingandvoltagelift
AT dongkuklim highstepupinterleavedconvertermixedwithmagneticcouplingandvoltagelift
AT hanhochoi highstepupinterleavedconvertermixedwithmagneticcouplingandvoltagelift