一种基于双向变换器的太阳能电池储能供电系统  

A solar cell energy storage power supply system based on bidirectional converter

作　　者：李演明[1] 郑怀仓 文常保[1] 杨冠斌 茹锋[1] 孟云 Li Yanming;Zheng Huaicang;Wen Changbao;Yang Guanbin;Ru Feng;Meng Yun(School of Electronic and Control Engineering,Chang′an University,Xi′an 710064,China)

机构地区：[1]长安大学电子与控制工程学院,陕西西安710064

出　　处：《电子技术应用》2018年第11期129-132,共4页Application of Electronic Technique

基　　金：国家自然科学基金项目(61701044);陕西省自然科学基础研究计划(2017JM6092);中央高校基本科研业务费(310832173702);长安大学大学生创新创业训练计划项目(201710710220)

摘　　要：为了解决太阳能供电系统中输出效率低的问题,提出了一种基于双向变换器的电池储能供电系统。该系统由微控制器模块、DC-DC变换器模块和开关模块组成。微控制器模块能够检测和调整输入输出电流,DC-DC变换器模块可以实现输入端到输出端的电压变换,开关模块能够改变变换器两端能量传输方向。实验表明,当充电电流为2 A时,其效率可达97.25%;当放电电流为1 A时,效率可达95.3%。电流步进调整值小于0.05 A。In order to solve the problem of low output efficiency in solar power supply system,a battery energy storage power supply system based on bidirectional converter is proposed.The system consists of a microcontroller module,a DC-DC converter module and switch module.The microcontroller module can detect and adjust the input and output current,and the DC-DC converter module can realize the voltage conversion from the input to the output.The switching module can change the direction of the energy transfer at both ends of the converter.The experimental results prove that the efficiency can reach 97.25%when the charging current is 2 A.When the discharge current is 1 A,the efficiency can reach 95.3%.The current step adjustment value is less than 0.05 A.

关 键 词：双向变换器 微控制器 效率 太阳能电池 

分 类 号：TM914.4[电气工程—电力电子与电力传动]