Comparative Analysis of PWM Techniques for Interleaved Full Bridge Converter in an AC Battery Application

Tuan Anh Do, Quang Dich Nguyen, Phuong Vu (), Minh Duc Ngo () and Seon-Ju Ahn ()
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Tuan Anh Do: School of Electrical and Electronic Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
Quang Dich Nguyen: Institute for Control Engineering and Automation, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
Phuong Vu: School of Electrical and Electronic Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
Minh Duc Ngo: Department of Automation, Thai Nguyen University of Technology, Thai Nguyen 251750, Vietnam
Seon-Ju Ahn: Department of Electrical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea

Energies, 2024, vol. 17, issue 2, 1-20

Abstract: The AC battery utilizing second-life time batteries has gained great interest currently with the advantages of both power solutions and economic benefits. In this system, the power converters play a crucial role in the stable and effective operation of the system. This paper focused on the AC/DC stage with the chosen topology being the interleaved full bridge (IFB) converter due to its flexibility and the ability to increase the power rate of the system. For the sake of high-performance operation, various pulse width modulation (PWM) methods for this converter are analyzed. First, based on the theory of the traditional PWM methods for a full bridge inverter in combination with the interleaved technique, this paper proposed three interleaved PWM methods for the IFB converter. Secondly, the proposed methods are theoretically compared in terms of the output current, common-mode voltage, and power losses. Finally, the evaluation is carried out by both the simulation and the experimental prototype, in which the results are in good agreement with the theoretical analysis.

Keywords: AC battery; power correction factor stage; interleaved full bridge converter; pulse width modulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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