کنفرانس مهندسی برق ایران

صفحه اصلی / سی و یکمین کنفرانس بین المللی مهندسی برق

Ultrahigh Step-Up Non-Isolated DC-DC Converter Based on Quadratic Converter without Coupled Inductor

نویسندگان :

Sajad Rostami¹ Vahid Abbasi² Masoumeh Parastesh³

1- دانشگاه صنعتی کرمانشاه 2- دانشگاه صنعتی کرمانشاه 3- دانشگاه صنعتی کرمانشاه

کلمات کلیدی :

Non-Isolated dc-dc converters،Ultrahigh step-up voltage gain،Quadratic converter،Voltage multiplier cell،Renewable energy

چکیده :

This paper presents an ultrahigh step-up DC-DC converter that is combined of a quadratic boost converter and a multiplier cell. Voltage stress on most of the components is lower than 0.25Vo which causes reduction of cost and volume. Voltage gain of the proposed converter is higher than the compared converters. Slope of the voltage gain curve is higher than the others which makes possibility of higher voltage gains in lower duty cycles. The converter is experimented for voltage gain equal to 27 that shows unique operation of the converter in comparison to the similar ones. In addition, input source supports load with continuous current and there is a common ground between load and the input source. Dynamic and transient responses of the converter during variations are experimented and the results demonstrate appropriate properties of the converter. The converter is analyzed and the obtained equations are utilized to design components and compare the converter with the others. A 140W prototype is implemented to convert 14V-30V of input source to 400V in load side that is suitable for renewable energy applications. The experimental results verify feasibility and performance of the converter and prove capabilities of the converter for being used as an ultrahigh step-up converter.

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بیشتر

ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 42.0.4