A New Interleaved ZVT High Step-Up Converter with Low Count Elements for Photovoltaic Applications
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JREE-9-1_007
تاریخ نمایه سازی: 9 بهمن 1400
Abstract:
A new interleaved high step-up converter with Zero Voltage Transition (ZVT) is proposed for operation in this paper. The main advantages of the proposed converter are low input current ripple and low voltage stress on the power switches, high efficiency, low total component count, and eliminating reverse recovery problem of power diodes. Due to the soft switching operation of the switches and diodes in the converter, the efficiency has been enhanced. Also, the switches do not have capacitive turn on loss due to ZVT operation. The proposed converter uses only one power switch to provide ZVT conditions for all switches and the clamp capacitor transfers its energy to the lifting capacitor, which causes increase in voltage gain of the converter. Because of the interleaved structure, the converter has a low input ripple current and this advantage makes it very suitable for solar applications. The proposed converter is analysed and a ۵۸۰W prototype is made to verify theoretical analyses.
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Authors
Baabk Tohidi
Department of Electrical Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, P. O. Box: ۸۱۵۵۱-۳۹۹۹۸, Isfahan, Isfahan, Iran.
Majid Delshad
Department of Electrical Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, P. O. Box: ۸۱۵۵۱-۳۹۹۹۸, Isfahan, Isfahan, Iran.
Hadi Saghafi
Department of Electrical Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, P. O. Box: ۸۱۵۵۱-۳۹۹۹۸, Isfahan, Isfahan, Iran.
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