适用于低压系统的非隔离单管Boost变换器  

Non-isolated and Single Switched Tube Boost Converters for Low Voltage Systems

作　　者：罗朋 梁剑鑫 杨燕霞 LUO Peng;LIANG Jian-xin;YANG Yan-xia(Guangdong Ocean University,Zhanjiang 524088,China)

机构地区：[1]广东海洋大学电子与信息工程学院,广东湛江524088

出　　处：《电力电子技术》2023年第2期98-100,共3页Power Electronics

基　　金：国家自然科学基金(61803136)。

摘　　要：针对燃料电池、光伏电池、风力发电等新型能源系统输出电压较低的问题,此处提出了一种高效、非隔离的单开关管高增益Boost变换器,在传统Boost变换器的基础上引入了耦合电感,结合开关电容,实现了高电压增益,克服了传统Boost变换器开关管和二极管的电压应力大、效率低、电路结构复杂的缺点。在理论研究的基础上进行仿真实验并搭建了一台250 W的实验样机,验证了理论分析的正确性和有效性,最大效率和满载效率分别为96.3%和94.2%。Since the low output voltage of the new energy systems,such as fuel cells,photovoltaic and wind power,a high efficiency and high voltage gain non-isolated Boost converter with a single switch is proposed.Based on the traditional Boost converter,the proposed converter can achieve high voltage gain with coupled inductor and switched capacitor,overcoming the disadvantages of the large voltage stresses on switch and diode,low efficiency and complex structures.A 250 W prototype is implemented to verify the validation of theoretical analyses.The maximum efficiency and full load efficiency are 96.3% and 94.2%,respectively.

关 键 词：变换器 耦合电感 开关电容 

分 类 号：TM46[电气工程—电器]