Operation and Design Consideration of an Ultra High Step-Up DC-DC Converter featuring High Power Density

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2021-10-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
10
Series
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
Abstract
A new dual-coupled inductor (CI) single-switch high step-up dc-dc topology featuring high power density is proposed in this study. Various capacitive power transfer methods, as well as inductive power transfer techniques, are utilized to act as a more efficient power interface between the input and the load. Three ports in the output terminal are employed to distribute the overall output voltage, diminish the voltage ripple in high-voltage gain ratios, and decrease the voltage stress on the port component. In the proposed converter, first, the voltage gain is high in lower duty cycles of the switching. Second, the stored energy of magnetizing and leakage inductances is recycled in both Cls. Third, the switch voltage spikes are alleviated. Fourth, the operation is done with no circulating current. Fifth, low-size passive components are presented. Sixth, high power density is obtained, and the voltage range is widened. Finally, a simple pulsewidth modulation (PWM) utilizing a wide control range is provided. In this study, the steady-state operation is analyzed under both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), and the performance of the converter is evaluated using comparisons with similar works. In addition, the experimental results have been provided to justify the feasibility of the design.
Description
Publisher Copyright: IEEE
Keywords
Capacitors, coupled inductor, DC-DC power conversion, DC-DC power converters, high power density, high step-up converter, High-voltage techniques, Inductance, Inductors, Stress, Switches
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Citation
Tarzamni , H , Sabahi , M , Rahimpour , S , Lehtonen , M & Dehghanian , P 2021 , ' Operation and Design Consideration of an Ultra High Step-Up DC-DC Converter featuring High Power Density ' , IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS , vol. 9 , no. 5 , pp. 6113-6123 . https://doi.org/10.1109/JESTPE.2021.3072957