High Voltage Gain Quasi-SEPIC DC-DC Converter

Yam Prasad Siwakoti, Ali Mostaan, Ahmed Abdelhakim, Pooya Davari, Mohsen N. Soltani, Noman Habib Khan, Li Li, Frede Blaabjerg

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Resumé

This paper proposes a modified coupled-inductor SEPIC dc-dc converter for high voltage gain (2 < G < 10) applications. It utilizes the same components as the conventional SEPIC converter with an additional diode. The voltage stress on the switch is minimal, which helps the designer to select a low voltage and low RDS-on MOSFET, resulting in a reduction of cost, conduction and turn ON losses of the switch. Compared to equivalent topologies with similar voltage gain expression, the proposed topology uses lower component-count to achieve the same or even higher voltage gain. This helps to design a very compact and lightweight converter with higher power density and reliability. Operating performance, steady-state analysis and mathematical derivations of the proposed dc-dc converter have been demonstrated in the paper. Moreover, extension of the circuit for higher gain (G > 10) application is also introduced and discussed. Finally, the main features of the proposed converter have been verified through simulation and experimental results of a 400 W laboratory prototype. The efficiency is almost flat over a wide range of load with the highest measured efficiency of 96.2%, and the full-load efficiency is 95.2% at a voltage gain of 10.
OriginalsprogEngelsk
Artikelnummer8419732
TidsskriftI E E E Journal of Emerging and Selected Topics in Power Electronics
Vol/bind7
Udgave nummer2
Sider (fra-til)1243-1257
Antal sider15
ISSN2168-6777
DOI
StatusUdgivet - jun. 2019

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DC-DC converters
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Siwakoti, Yam Prasad ; Mostaan, Ali ; Abdelhakim, Ahmed ; Davari, Pooya ; Soltani, Mohsen N. ; Khan, Noman Habib ; Li, Li ; Blaabjerg, Frede. / High Voltage Gain Quasi-SEPIC DC-DC Converter. I: I E E E Journal of Emerging and Selected Topics in Power Electronics. 2019 ; Bind 7, Nr. 2. s. 1243-1257.
@article{9d3fb6b36aac4ed79739aa56d9468bc0,
title = "High Voltage Gain Quasi-SEPIC DC-DC Converter",
abstract = "This paper proposes a modified coupled-inductor SEPIC dc-dc converter for high voltage gain (2 < G < 10) applications. It utilizes the same components as the conventional SEPIC converter with an additional diode. The voltage stress on the switch is minimal, which helps the designer to select a low voltage and low RDS-on MOSFET, resulting in a reduction of cost, conduction and turn ON losses of the switch. Compared to equivalent topologies with similar voltage gain expression, the proposed topology uses lower component-count to achieve the same or even higher voltage gain. This helps to design a very compact and lightweight converter with higher power density and reliability. Operating performance, steady-state analysis and mathematical derivations of the proposed dc-dc converter have been demonstrated in the paper. Moreover, extension of the circuit for higher gain (G > 10) application is also introduced and discussed. Finally, the main features of the proposed converter have been verified through simulation and experimental results of a 400 W laboratory prototype. The efficiency is almost flat over a wide range of load with the highest measured efficiency of 96.2{\%}, and the full-load efficiency is 95.2{\%} at a voltage gain of 10.",
keywords = "Boost converter, coupled-inductor, dc-dc converter, flyback transformer, SEPIC converter, Switched-Mode Power Supply (SMPS)",
author = "Siwakoti, {Yam Prasad} and Ali Mostaan and Ahmed Abdelhakim and Pooya Davari and Soltani, {Mohsen N.} and Khan, {Noman Habib} and Li Li and Frede Blaabjerg",
year = "2019",
month = "6",
doi = "10.1109/JESTPE.2018.2859425",
language = "English",
volume = "7",
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High Voltage Gain Quasi-SEPIC DC-DC Converter. / Siwakoti, Yam Prasad; Mostaan, Ali; Abdelhakim, Ahmed; Davari, Pooya; Soltani, Mohsen N.; Khan, Noman Habib; Li, Li; Blaabjerg, Frede.

I: I E E E Journal of Emerging and Selected Topics in Power Electronics, Bind 7, Nr. 2, 8419732, 06.2019, s. 1243-1257.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - High Voltage Gain Quasi-SEPIC DC-DC Converter

AU - Siwakoti, Yam Prasad

AU - Mostaan, Ali

AU - Abdelhakim, Ahmed

AU - Davari, Pooya

AU - Soltani, Mohsen N.

AU - Khan, Noman Habib

AU - Li, Li

AU - Blaabjerg, Frede

PY - 2019/6

Y1 - 2019/6

N2 - This paper proposes a modified coupled-inductor SEPIC dc-dc converter for high voltage gain (2 < G < 10) applications. It utilizes the same components as the conventional SEPIC converter with an additional diode. The voltage stress on the switch is minimal, which helps the designer to select a low voltage and low RDS-on MOSFET, resulting in a reduction of cost, conduction and turn ON losses of the switch. Compared to equivalent topologies with similar voltage gain expression, the proposed topology uses lower component-count to achieve the same or even higher voltage gain. This helps to design a very compact and lightweight converter with higher power density and reliability. Operating performance, steady-state analysis and mathematical derivations of the proposed dc-dc converter have been demonstrated in the paper. Moreover, extension of the circuit for higher gain (G > 10) application is also introduced and discussed. Finally, the main features of the proposed converter have been verified through simulation and experimental results of a 400 W laboratory prototype. The efficiency is almost flat over a wide range of load with the highest measured efficiency of 96.2%, and the full-load efficiency is 95.2% at a voltage gain of 10.

AB - This paper proposes a modified coupled-inductor SEPIC dc-dc converter for high voltage gain (2 < G < 10) applications. It utilizes the same components as the conventional SEPIC converter with an additional diode. The voltage stress on the switch is minimal, which helps the designer to select a low voltage and low RDS-on MOSFET, resulting in a reduction of cost, conduction and turn ON losses of the switch. Compared to equivalent topologies with similar voltage gain expression, the proposed topology uses lower component-count to achieve the same or even higher voltage gain. This helps to design a very compact and lightweight converter with higher power density and reliability. Operating performance, steady-state analysis and mathematical derivations of the proposed dc-dc converter have been demonstrated in the paper. Moreover, extension of the circuit for higher gain (G > 10) application is also introduced and discussed. Finally, the main features of the proposed converter have been verified through simulation and experimental results of a 400 W laboratory prototype. The efficiency is almost flat over a wide range of load with the highest measured efficiency of 96.2%, and the full-load efficiency is 95.2% at a voltage gain of 10.

KW - Boost converter

KW - coupled-inductor

KW - dc-dc converter

KW - flyback transformer

KW - SEPIC converter

KW - Switched-Mode Power Supply (SMPS)

U2 - 10.1109/JESTPE.2018.2859425

DO - 10.1109/JESTPE.2018.2859425

M3 - Journal article

VL - 7

SP - 1243

EP - 1257

JO - I E E E Journal of Emerging and Selected Topics in Power Electronics

JF - I E E E Journal of Emerging and Selected Topics in Power Electronics

SN - 2168-6777

IS - 2

M1 - 8419732

ER -