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Energies 2017, 10(12), 1980;

A Multifunctional Isolated and Non-Isolated Dual Mode Converter for Renewable Energy Conversion Applications

Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
School of Electronic and Information Engineering, Suzhou Vocational University, Suzhou 215104, China
Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN 37996, USA
Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK
School of Urban Rail Transportation, Soochow University, Suzhou 215137, China
Author to whom correspondence should be addressed.
Received: 16 October 2017 / Revised: 25 November 2017 / Accepted: 25 November 2017 / Published: 30 November 2017
(This article belongs to the Section Energy Fundamentals and Conversion)
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In this paper, a multifunctional isolated and non-isolated dual-mode low-power converter was designed for renewable energy conversion applications such as photovoltaic power generation to achieve different operating modes under bi-directional electrical conversion. The proposed topology consists of a bidirectional non-isolated DC/DC circuit and an isolated converter with a high-frequency transformer, which merge the advantages of both the conventional isolated converter and non-isolated converter with the combination of the two converter technologies. Compared with traditional converters, the multifunctional converter can not only realize conventional bi-directional functions, but can also be applied for many different operation modes and meet the high output/input ratio demands with the two converter circuits operating together. A novel control algorithm was proposed to achieve the various functions of the proposed converter. An experimental platform based on the proposed circuit was established. Both the simulation and experimental results indicated that the proposed converter could provide isolated and non-isolated modes in different applications, which could meet different practical engineering requirements. View Full-Text
Keywords: multifunctional converter; bi-directional; isolated and non-isolated; dual mode; control multifunctional converter; bi-directional; isolated and non-isolated; dual mode; control

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Wang, Y.; Gan, C.; Ni, K.; Li, X.; Tang, H.; Yang, Y. A Multifunctional Isolated and Non-Isolated Dual Mode Converter for Renewable Energy Conversion Applications. Energies 2017, 10, 1980.

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