期刊
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
卷 49, 期 4, 页码 1147-1163出版社
WILEY
DOI: 10.1002/cta.2904
关键词
high step‐ up converters; hourglass impedance network; low capacitor voltage stresses; nonelectrolytic capacitors
资金
- National Natural Science Foundation of China [51907032]
- Natural Science Foundation of Guangdong Province [2018A030313365]
- Science and Technology Planning Project of Guangzhou [201804010310]
A novel high-step-up converter is proposed in this study, utilizing a new hourglass-shaped impedance network. By using non-electrolytic capacitors, it achieves all characteristics of electrolytic capacitors and has lower capacitor voltage stresses. The converter is smaller, lighter, with lower parasitic resistance, and longer operation life than conventional converters with electrolytic capacitors.
In this study, a novel high-step-up converter is proposed with a new hourglass-shaped impedance network (HIN). Due to the short lifetime of electrolytic capacitors (ECs), the proposed converter uses nonelectrolytic capacitors (NECs), which however can realize all ECs' features. Besides, the proposed converter has low capacitor voltage stresses, ensuring it could be electrolytic-capacitors-free. With this feature, the proposed high step-up converter has smaller size, lighter weight, smaller parasitic resistance, and longer operation life than the conventional ones with ECs. In this paper, detailed operational principle and performance of the proposed converter are presented, to demonstrate its advanced features. Simulation and experimental studies are also carried out, which validate the feasibility and effectiveness of the proposed converter.
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