دانلود رایگان مقاله High Step-Up Converter With Three-Winding Coupled Inductor for Fuel Cell Energy Source Applications

دانلود رایگان مقاله High Step-Up Converter With Three-Winding Coupled Inductor for Fuel Cell Energy Source Applications

FEBRUARY 2015

IEEE TRANSACTIONS ON POWER ELECTRONICS

High Step-Up Converter With Three-Winding Coupled Inductor for Fuel Cell Energy Source Applications

Abstract

This paper presents a high step-up converter for fuel cell energy source applications. The proposed high step-up dc–dc converter is devised for boosting the voltage generated from fuel cell to be a 400-V dc-bus voltage. Through the three-winding coupled inductor and voltage doubler circuit, the  roposed converter achieve high step-up voltage gain without large duty cycle. The passive lossless clamped technology not only recycles leakage energy to improve efficiency but also alleviates large voltage spike to limit the voltage stress. Finally, the fuel cell as input voltage source 60–90 V integrated into a 2-kW prototype converter was implemented for performance verification. Under output voltage 400-V operation, the highest efficiency is up to 96.81%, and the full-load efficiency is 91.32%.

Index Terms—Coupled inductor, fuel cell energy source applications, high step-up converter.

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