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Article

A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current

by
Amir Farakhor
1,
Mehdi Abapour
1,
Mehran Sabahi
1,
Saeid Gholami Farkoush
2,*,
Seung-Ryle Oh
3 and
Sang-Bong Rhee
2,*
1
Department of Electrical and Computer Engineering, University of Tabriz, Tabriz 51666-16471, Iran
2
Department of Electrical Engineering, Yeungnam University, Gyeongsan 38541, Korea
3
Korea Electric Power Company (KEPCO), Daejeon 34056, Korea
*
Authors to whom correspondence should be addressed.
Energies 2020, 13(7), 1780; https://doi.org/10.3390/en13071780
Submission received: 18 February 2020 / Revised: 1 April 2020 / Accepted: 1 April 2020 / Published: 7 April 2020
(This article belongs to the Special Issue Design and Analysis of Electric Machines)
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Abstract

This paper proposes a novel high voltage conversion gain DC/DC boost converter for renewable energy applications and systems. The proposed converter utilizes a three-winding coupled inductor. The presented converter benefits from a unique advantage, as the actual turn ratio of the coupled inductor is decreased in the charging state of the coupled inductor. However, while the inductor is discharging, the actual turn ratio is increased. This feature leads to a very high voltage conversion gain. Furthermore, a passive clamp circuit is employed to recover the leakage current of the coupled inductor. The voltage stresses on the semiconductors are also reduced. In addition, the average current of the primary side of the coupled inductor is zero. This will reduce the total energy stored in the passive elements of the converter. The paper analyzes the Continuous Conduction Mode (CCM) and the operation principles of the presented converter are thoroughly derived. A 250 W laboratory hardware prototype is prepared to verify the proper operation of the presented converter. The obtained experimental results validate the feasibility of the presented converter.
Keywords: DC/DC boost converter; continuous conduction mode (CCM); coupled inductors DC/DC boost converter; continuous conduction mode (CCM); coupled inductors

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MDPI and ACS Style

Farakhor, A.; Abapour, M.; Sabahi, M.; Gholami Farkoush, S.; Oh, S.-R.; Rhee, S.-B. A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current. Energies 2020, 13, 1780. https://doi.org/10.3390/en13071780

AMA Style

Farakhor A, Abapour M, Sabahi M, Gholami Farkoush S, Oh S-R, Rhee S-B. A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current. Energies. 2020; 13(7):1780. https://doi.org/10.3390/en13071780

Chicago/Turabian Style

Farakhor, Amir, Mehdi Abapour, Mehran Sabahi, Saeid Gholami Farkoush, Seung-Ryle Oh, and Sang-Bong Rhee. 2020. "A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current" Energies 13, no. 7: 1780. https://doi.org/10.3390/en13071780

APA Style

Farakhor, A., Abapour, M., Sabahi, M., Gholami Farkoush, S., Oh, S.-R., & Rhee, S.-B. (2020). A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current. Energies, 13(7), 1780. https://doi.org/10.3390/en13071780

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