电工技术学报  2019, Vol. 34 Issue (2): 326-336    DOI: 10.19595/j.cnki.1000-6753.tces.171574
电力电子 |
基于变拓扑的超宽输入范围直流变换器及调制策略
李山, 宋立风, 章治国, 刘述喜, 郭强
重庆理工大学重庆市能源互联网工程技术研究中心 重庆 400054
Wide Input Range DC Converter Based on Variable Topology and Its Modulation Strategy
Li Shan, Song Lifeng, Zhang Zhiguo, Liu Shuxi, Guo Qiang
Energy Internet Engineering Technology Center of Chongqing City Chongqing University of Technology Chongqing 400054 China
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摘要 针对光伏发电中太阳能电池板输出电压波动范围大的特点,提出一种基于变拓扑的超宽输入范围的隔离型DC-DC变换器。通过双模式双沿调制,变换器以变拓扑方式工作,实现超宽范围的电压输入;同时减小变换器的电感电流脉动和平均值,开关管的电流应力小,导通及开关损耗低,相比于单模式调制具有更高的效率。最后搭建一台输入电压为24V~120V、输出电压为360V、额定功率200W的实验样机,实验结果验证了该变拓扑变换器运行在超宽输入电压范围的可行性以及调制策略的有效性。
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李山
宋立风
章治国
刘述喜
郭强
关键词 超宽输入范围双模式双沿调制变拓扑电感电流脉动电流应力    
Abstract:Aiming at the wide output voltage fluctuation range of photovoltaic solar panels, an isolated DC/DC converter with wide range input based on variable topology is proposed. Through the dual-mode dual-edge modulation, the converter is working with a variable topology, to achieve a wide range of voltage input. At the same time, the inductor current ripple and its average for the converter in the modulation are reduced, and the current stress of the switch is low. Besides, the conduction and the switching loss are also small. As a result, the efficiency is higher than that of the single-mode modulation. Finally, an experimental prototype with input voltage of 24V~120V, output voltage of 360V and a rated power of 200W was constructed. The experimental data have verified the feasibility of the proposed variable topology converter running in the wide input voltage range as well as the effectiveness of the modulation strategy.
Key wordsWide input range    double-mode double-edge modulation    variable topology    inductor current ripple    current stress   
收稿日期: 2017-11-22      出版日期: 2019-01-29
PACS: TM46  
基金资助:国家自然科学基金(51607020)和重庆市教委科学技术研究(KJ1600944、KJ1709209)资助项目
通讯作者: 章治国 男,1977年生,博士,副教授,研究方向为功率变换器拓扑及其控制技术。E-mail: zzg@cqut.edu.cn   
作者简介: 李 山 男,1965年生,博士,教授,研究方向为电能变换与控制。E-mail: lishan@cqut.edu.cn
引用本文:   
李山, 宋立风, 章治国, 刘述喜, 郭强. 基于变拓扑的超宽输入范围直流变换器及调制策略[J]. 电工技术学报, 2019, 34(2): 326-336. Li Shan, Song Lifeng, Zhang Zhiguo, Liu Shuxi, Guo Qiang. Wide Input Range DC Converter Based on Variable Topology and Its Modulation Strategy. Transactions of China Electrotechnical Society, 2019, 34(2): 326-336.
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