重庆大学学报2017，Vol.40Issue(8)：53-62,10.DOI:10.11835/j.issn.1000-582X.2017.08.007
宽占空比交错控制的三绕组耦合电感DC/DC变换器
An extended duty ratio DC/DC converter with three-winding coupled inductor
摘要
Abstract
In this paper,an interleaved high step-up DC-DC converter with winding-cross-coupled inductors is presented.Firstly,the second winding of each coupled inductor is connected with a capacitor,which composes a quasi voltage multiplier unit (QVMU).Then,a boost circuit consists of the QVMU,the primary winding and the main switch.Moreover,the QVMU can be charged through the clamp capacitor and the third winding of the other phase coupled inductor.Thus,two phases can be cross-coupled.Furthermore,the primary currents of two coupled inductors are interleaved in parallel at input.There are many advantages of the above-mentioned structure.Firstly,the proposed converter can be operated in the duty cycle of the entire range of variation and the expression of the voltage gain can be consistent across the range of the duty cycle.Secondly,the output voltage and input current of each phase can be automatically regulated to be equally distributed.Thirdly,the proposed converter can achieve a high step-up voltage conversion and the voltage stress on the power devices can be reduced.Lastly,a high step-up gain can be flexibly adjusted.The operating principle of the proposed converter is analyzed.In order to verify the theoretical analysis,an experimental prototype is built.关键词
交错连接/三绕组耦合电感/准倍压单元/自平衡/高增益Key words
interleaving/winding-cross-coupled inductor/quasi voltage multiplier unit/auto-balance/high step-up分类
信息技术与安全科学引用本文复制引用
吴贵洋,章家岩,陈浩,胡雪峰..宽占空比交错控制的三绕组耦合电感DC/DC变换器[J].重庆大学学报,2017,40(8):53-62,10.基金项目
国家自然科学基金(51577002) （51577002）
安徽省自然科学基金(1408085ME80) （1408085ME80）
安徽省教育厅自然科学重点项目(KJ2012A048).Supported by National Natural Science Foundation of China (51577002),Natural Science Foundation of Anhui Province of China (1408085ME80) and Natural Science Foundation of Anhui Education Committee (KJ2012A048). （KJ2012A048）
