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李永超,胡雪峰,李琳鹏,章家岩.一种零电流纹波交错Boost变换器[J].电源学报,2018,16(1):24-29
一种零电流纹波交错Boost变换器
An Interleaving Boost Converter with Zero Current Ripple
投稿时间:2016-04-18  修订日期:2017-09-18
DOI:10.13234/j.issn.2095-2805.2018.1.24
中文关键词:  改进交错连接  高电压增益  Boost变换器  低输入电流纹波
英文关键词:improved interleaving connection  high-voltage gain  Boost converter  low-input current ripple
基金项目:国家自然科学基金资助项目(51577002);安徽省自然科学基金资助项目(1408085ME80);安徽省教育厅自然科学基金重点资助项目(KJ2012A048)。
作者单位E-mail
李永超 安徽工业大学电气与信息工程学院, 马鞍山 243032 chao1991_ly@foxmail.com 
胡雪峰 安徽工业大学电气与信息工程学院, 马鞍山 243032  
李琳鹏 安徽工业大学电气与信息工程学院, 马鞍山 243032  
章家岩 安徽工业大学电气与信息工程学院, 马鞍山 243032  
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中文摘要:
      为了有效利用光伏或燃料电池等低压可再生能源,研究了一种电源直接供电的改进交错连接Boost变换器。与基本交错并联Boost变换器相比,改进交错连接Boost变换器中输入电感交错并联,输出电容交错叠加在输入电源的两端。通过结构改进,使得上述变换器具有较高的电压增益,同时功率开关管和二极管的相对电压应力得到了有效降低;直流电源可以直接供电给负载,提高了效率。在此结构基础上,在输入端引入一个较小的辅助电感,理论上可使输入电流纹波近似等于零。详细分析了该变换器的工作原理及其稳态特性,最后通过实验验证了理论分析的正确性。
英文摘要:
      To utilize the low-voltage renewable energy sources(e.g., photovoltaic or fuel cells) effectively, an improved interleaving Boost converter directly connected with power supply was investigated in this paper. Compared with the basic interleaving Boost converter, the input inductor in the new converter was interleaved, and the output capacitance was staggered and stacked at both ends of the input power supply. By improving the converter's structure, a high-voltage gain was achieved; meanwhile, the relative voltage stress of power switches and diodes were reduced effectively. Since the DC power can supply energy to the load directly, the efficiency of the converter was improved. Based on this topology, a relatively smaller auxiliary inductor was introduced at the input end to theoretically ensure the input current ripple to be approximately zero. Moreover, the operational principle of the converter and its steady-state characteristics were analyzed in detail. Finally, the theoretical analysis was verified by experiments.
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