A Dual-Peak Current Control Strategy and Implementation for Four-Switch Buck-Boost Converter

IF 5 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE open journal of power electronics Pub Date : 2024-10-15 DOI:10.1109/OJPEL.2024.3481001

Zhaoliang Wen;Xiangjun Zhang;Hongyu Zhang;Dianguo Xu

{"title":"A Dual-Peak Current Control Strategy and Implementation for Four-Switch Buck-Boost Converter","authors":"Zhaoliang Wen;Xiangjun Zhang;Hongyu Zhang;Dianguo Xu","doi":"10.1109/OJPEL.2024.3481001","DOIUrl":null,"url":null,"abstract":"The four-switch buck-boost (FSBB) converter is ideal for scenarios such as distributed power supply in data centers and low-voltage DC-DC in electric vehicles as a voltage regulator, because it is easy to achieve zero-voltage switch (ZVS) and has both boost and buck capabilities. In order to avoid complex real-time calculations or the need for large data storage, to realize wide input, and full load range ZVS a dual-peak current control strategy is proposed. This strategy associates two peak points of the inductor current by introducing input and output voltage to achieve the boosting and bucking. Further, the working principle of the strategy is analyzed and the RMS value of the inductor current is optimized to improve the efficiency. And the case of inductor current not being reset is analyzed and set limits to ensure the inductor current can be reset at constant frequency. The strategy can be realized by high-speed comparators as well as low-delay logic gates, thus saving the storage and computational resources of the controller. Finally, a 300 W prototype with an input voltage range of 36-60 V and an output voltage of 48 V is built to verify the correctness of the strategy.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":null,"pages":null},"PeriodicalIF":5.0000,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10717453","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE open journal of power electronics","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10717453/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

The four-switch buck-boost (FSBB) converter is ideal for scenarios such as distributed power supply in data centers and low-voltage DC-DC in electric vehicles as a voltage regulator, because it is easy to achieve zero-voltage switch (ZVS) and has both boost and buck capabilities. In order to avoid complex real-time calculations or the need for large data storage, to realize wide input, and full load range ZVS a dual-peak current control strategy is proposed. This strategy associates two peak points of the inductor current by introducing input and output voltage to achieve the boosting and bucking. Further, the working principle of the strategy is analyzed and the RMS value of the inductor current is optimized to improve the efficiency. And the case of inductor current not being reset is analyzed and set limits to ensure the inductor current can be reset at constant frequency. The strategy can be realized by high-speed comparators as well as low-delay logic gates, thus saving the storage and computational resources of the controller. Finally, a 300 W prototype with an input voltage range of 36-60 V and an output voltage of 48 V is built to verify the correctness of the strategy.

查看原文本刊更多论文

四开关降压-升压转换器的双峰值电流控制策略与实现

四开关降压-升压（FSBB）转换器是数据中心分布式电源和电动汽车低压直流-直流稳压器等应用场景的理想选择，因为它易于实现零电压开关（ZVS），并同时具备升压和降压功能。为了避免复杂的实时计算或大量数据存储的需要，实现宽输入和全负载范围的 ZVS，提出了一种双峰值电流控制策略。该策略通过引入输入和输出电压，将电感器电流的两个峰值点联系起来，从而实现升压和降压。此外，还分析了该策略的工作原理，并优化了电感器电流的有效值，以提高效率。此外，还分析了电感器电流无法复位的情况，并设定了限制，以确保电感器电流能在恒定频率下复位。该策略可通过高速比较器和低延迟逻辑门实现，从而节省控制器的存储和计算资源。最后，我们制作了一个 300 W 的原型，输入电压范围为 36-60 V，输出电压为 48 V，以验证该策略的正确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE open journal of power electronics

CiteScore

8.60

自引率

0.00%

发文量

审稿时长

8 weeks