A Non-Isolated High Gain Switched-Inductor Switched-Capacitor Step-Up Converter for Renewable Energy Applications

2018 IEEE International Conference on Electro/Information Technology (EIT) Pub Date : 2018-05-03 DOI:10.1109/EIT.2018.8500142

Y. Almalaq, A. Alateeq, M. Matin

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引用次数: 7

Abstract

This paper presents a novel of a transformerless step-up DC-DC converter based on a switched-inductor (SL) and switched-capacitor (SC) techniques. The main advantage of the proposed SLSC step-up converter is the ability to achieve very high voltage gain (>20) with reasonable voltage stress across the semiconductor switches. The presented paper shows a detailed analysis of the proposed SLSC step-up converter and a comparison considering other published step-up converter topologies. Theoretically, the proposed SLSC step-up converter can boost the input voltage to 23.5 times when $\mathbf{D}=0.75$, which D means the duty cycle of the MOSFET. Such a large voltage gain can be used in renewable energy applications such as photovoltaic application to boost the output voltage which the output voltage is low. The proposed converter is analyzed in continuous conduction mode (CCM). The proposed converter has been designed for 12V input voltage, 280V output voltage, 200W rated power, 50kHz switching frequency, and 75% duty cycle. The proposed converter has been simulated in MATLAB/SIMULINK.

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用于可再生能源应用的非隔离高增益开关电感开关电容升压变换器

本文提出了一种基于开关电感(SL)和开关电容(SC)技术的无变压器升压DC-DC变换器。所提出的SLSC升压转换器的主要优点是能够在半导体开关上以合理的电压应力实现非常高的电压增益(>20)。本文对所提出的SLSC升压变换器进行了详细的分析，并与其他已发表的升压变换器拓扑进行了比较。理论上，当$\mathbf{D}=0.75$ (D表示MOSFET的占空比)时，所提出的SLSC升压变换器可以将输入电压提升到23.5倍。如此大的电压增益可用于光伏等可再生能源应用，以提高输出电压较低的输出电压。在连续导通模式(CCM)下对该变换器进行了分析。该变换器的输入电压为12V，输出电压为280V，额定功率为200W，开关频率为50kHz，占空比为75%。在MATLAB/SIMULINK中对该转换器进行了仿真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE International Conference on Electro/Information Technology (EIT)

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