Non-isolated Ultra-high Voltage Gain Coupled Inductor-based DC-DC Converter

Homayon Soltani Gohari; Naghi Abbasi Mardakheh; Hadi Tarzamni; Naser Vosoughi Kurdkandi; Karim Abbaszadeh; Jorma Kyyra

doi:10.1109/TCSII.2023.3285169

Non-isolated Ultra-high Voltage Gain Coupled Inductor-based DC-DC Converter

Homayon Soltani Gohari, Naghi Abbasi Mardakheh, Hadi Tarzamni, Naser Vosoughi Kurdkandi, Karim Abbaszadeh, Jorma Kyyra

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

In this paper, an improved non-isolated coupled inductor-based high step-up DC-DC converter is proposed, with ultra-high voltage gain thanks to an active switched inductor. Utilizing a three-winding coupled inductor (CI) adds two more freedom degrees arising from its turns ratios that leads to a wide output voltage range. Several capacitive and inductive power transferring methods with no circulating current are used to recycle the stored energy in passive components. Two series-connected output ports and a passive clamp make the output and switch voltage stresses more tolerable, respectively. In addition, synchronized operation of switches leads to an easily implementable control system. Operation of the proposed converter in continuous conduction mode is analyzed thoroughly along with boundary and discontinuous conduction modes. Moreover, components design guideline is provided, and to evaluate the features, the converter is compared with some recent converters. Eventually, the experimental results of a 300 W laboratory prototype are given to validate the theoretical analysis.

Original language	English
Pages (from-to)	4459-4463
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	70
Issue number	12
DOIs	https://doi.org/10.1109/TCSII.2023.3285169
Publication status	Published - Dec 2023
MoE publication type	A1 Journal article-refereed

Keywords

Coupled inductor
DC-DC power conversion
DC-DC power converters
high step-up converter
Inductors
Integrated circuits
passive clamp
Stress
Switches
Voltage
Voltage control

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Non-Isolated_Ultra-High_Voltage-Gain-Coupled_Inductor-Based_DCDC_ConverterFinal published version, 2.47 MBLicence: CC BY

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title = "Non-isolated Ultra-high Voltage Gain Coupled Inductor-based DC-DC Converter",

abstract = "In this paper, an improved non-isolated coupled inductor-based high step-up DC-DC converter is proposed, with ultra-high voltage gain thanks to an active switched inductor. Utilizing a three-winding coupled inductor (CI) adds two more freedom degrees arising from its turns ratios that leads to a wide output voltage range. Several capacitive and inductive power transferring methods with no circulating current are used to recycle the stored energy in passive components. Two series-connected output ports and a passive clamp make the output and switch voltage stresses more tolerable, respectively. In addition, synchronized operation of switches leads to an easily implementable control system. Operation of the proposed converter in continuous conduction mode is analyzed thoroughly along with boundary and discontinuous conduction modes. Moreover, components design guideline is provided, and to evaluate the features, the converter is compared with some recent converters. Eventually, the experimental results of a 300 W laboratory prototype are given to validate the theoretical analysis.",

keywords = "Coupled inductor, DC-DC power conversion, DC-DC power converters, high step-up converter, Inductors, Integrated circuits, passive clamp, Stress, Switches, Voltage, Voltage control",

author = "Gohari, {Homayon Soltani} and Mardakheh, {Naghi Abbasi} and Hadi Tarzamni and Kurdkandi, {Naser Vosoughi} and Karim Abbaszadeh and Jorma Kyyra",

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AU - Mardakheh, Naghi Abbasi

AU - Tarzamni, Hadi

AU - Kurdkandi, Naser Vosoughi

AU - Abbaszadeh, Karim

AU - Kyyra, Jorma

N1 - Publisher Copyright: Author

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N2 - In this paper, an improved non-isolated coupled inductor-based high step-up DC-DC converter is proposed, with ultra-high voltage gain thanks to an active switched inductor. Utilizing a three-winding coupled inductor (CI) adds two more freedom degrees arising from its turns ratios that leads to a wide output voltage range. Several capacitive and inductive power transferring methods with no circulating current are used to recycle the stored energy in passive components. Two series-connected output ports and a passive clamp make the output and switch voltage stresses more tolerable, respectively. In addition, synchronized operation of switches leads to an easily implementable control system. Operation of the proposed converter in continuous conduction mode is analyzed thoroughly along with boundary and discontinuous conduction modes. Moreover, components design guideline is provided, and to evaluate the features, the converter is compared with some recent converters. Eventually, the experimental results of a 300 W laboratory prototype are given to validate the theoretical analysis.

AB - In this paper, an improved non-isolated coupled inductor-based high step-up DC-DC converter is proposed, with ultra-high voltage gain thanks to an active switched inductor. Utilizing a three-winding coupled inductor (CI) adds two more freedom degrees arising from its turns ratios that leads to a wide output voltage range. Several capacitive and inductive power transferring methods with no circulating current are used to recycle the stored energy in passive components. Two series-connected output ports and a passive clamp make the output and switch voltage stresses more tolerable, respectively. In addition, synchronized operation of switches leads to an easily implementable control system. Operation of the proposed converter in continuous conduction mode is analyzed thoroughly along with boundary and discontinuous conduction modes. Moreover, components design guideline is provided, and to evaluate the features, the converter is compared with some recent converters. Eventually, the experimental results of a 300 W laboratory prototype are given to validate the theoretical analysis.

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KW - Inductors

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KW - Switches

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KW - Voltage control

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Non-isolated Ultra-high Voltage Gain Coupled Inductor-based DC-DC Converter

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