Purpose

This paper aims to review comprehensively the different voltage-boosting techniques and classifies according to their voltage gain, stress on the semiconductor devices, count of the total components and their prominent features. Hence, the focus is on non-isolated step-up converters. The converters categorized are analyzed according to their category with graphical representation.

Design/methodology/approach

Many converters have been reported in recent years in the literature to meet our power requirements from mill watts to megawatts. Fast growth in the generation of renewable energy in the past few years has promoted the selection of suitable converters that directly impact the behaviour of renewable energy systems. Step-up converters are a fast-emerging switching power converter in various power supply units. Researchers are more attracted to the derivation of novel topology with a high voltage gain, low voltage and current stress, high efficiency, low cost, etc.

Findings

A comparative study is done on critical metrics such as voltage gain, switch voltage stress and component count. Besides, the converters are also summarized based on their advantages and disadvantages. Furthermore, the areas that need to be explored in this field are identified and presented.

Originality/value

Types of analysis usually performed in dc converter and their needs with the areas need to be focused are not yet completely reviewed in most of the articles. This paper gives an eyesight on these topics. This paper will guide the researchers to derive and suggest a suitable topology for the chosen application. Moreover, it can be used as a handbook for studying the various topologies with their shortfalls, which will provide a way for researchers to focus.

中文翻译：

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各种dc-dc转换器升压拓扑及其应用的综合研究

目的

本文旨在全面回顾不同的升压技术，并根据其电压增益、对半导体器件的应力、总元件数及其突出特点进行分类。因此，重点是非隔离升压转换器。已分类的转换器根据其类别以图形表示进行分析。

设计/方法/途径

近年来文献中报道了许多转换器，以满足我们从毫瓦到兆瓦的功率要求。过去几年可再生能源发电量的快速增长促进了对直接影响可再生能源系统行为的合适转换器的选择。升压转换器是各种电源装置中快速兴起的开关电源转换器。推导具有高电压增益、低电压和电流应力、高效率、低成本等特点的新型拓扑更受研究者的青睐。

发现

对电压增益、开关电压应力和组件数量等关键指标进行了比较研究。此外，还根据转换器的优缺点对转换器进行了总结。此外，还确定并介绍了该领域需要探索的领域。

原创性/价值

在大多数文章中，通常在直流转换器中执行的分析类型及其对需要关注的领域的需求尚未完全回顾。本文对这些主题进行了展望。本文将指导研究人员推导和建议适合所选应用的拓扑结构。此外，它还可以作为研究各种拓扑结构及其不足的手册，为研究人员提供一个聚焦的途径。