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Full Soft-Switching Ultra-High Gain DC/DC Converter Using Three-Winding Coupled-Inductor with Modular Scalability for Renewable Energy Applications | ||
| AUT Journal of Electrical Engineering | ||
| مقاله 5، دوره 54، شماره 1، شهریور 2022، صفحه 49-66 اصل مقاله (1.67 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/eej.2021.20211.5423 | ||
| نویسندگان | ||
| Sara Hasanpour* 1؛ Mojtaba Forouzesh2؛ Yam Siwakoti3 | ||
| 1Department of of Electrical Engineering, Islamic Azad University, Ramsar Branch, Ramsar, Iran | ||
| 2Department of Electrical and Computer Engineering, Queen’s University, Kingston, ON, Canada | ||
| 3Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, Australia | ||
| چکیده | ||
| This paper proposes a new non-isolated single-switch DC/DC converter with an ultra-high voltage gain, low input current ripple, low voltage stress, soft-switching operation, and modular scalability for renewable sources applications. With the help of a Three-Winding Coupled-Inductor (TWCI) and Voltage Multipliers circuits, ultra-high voltage gains can be achieved without needing a large duty cycle. A regenerative clamp capacitor recycles the energy stored in the leakage inductor; thus, the maximum voltage across the single power switch is restricted. Moreover, at the turn-on instant of the power switch, a Zero Current Switching (ZCS) condition is achieved. By designing a resonant tank, the switched current value of the main switch at the turn-off instant is reduced significantly. Additionally, the leakage inductor of the TWCI helps all converter diodes to operate under the ZCS condition. Due to full soft-switching performance, the introduced topology can provide a wide output voltage range under a high conversion efficiency. The steady-state analysis and comprehensive comparisons are provided in this paper. A 160 W prototype with 24 V input and 250 V output voltage is developed to validate the theoretical analysis. Due to ZCS operation and low voltage stress (VDS ≈ 40 V), the power loss portion of the MOSFET is low. Moreover, the maximum voltage stresses of diodes are measured as 40 V, 60 V, 90 V, and 110 V, that are well below the output voltage. Furthermore, at the full-load condition, the input current ripple is about 20 % and the measured efficiency is about 96.3%. | ||
| کلیدواژه‌ها | ||
| Step-Up DC-DC Converter؛ Ultra-High Gain؛ Three-Winding Coupled-Inductor (TWCI)؛ Soft-Switching؛ Voltage Multiplier (VM)؛ Modular Scalability | ||
| مراجع | ||
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