一种具有连续输出电流的单开关改进二次型Buck-Boost变换器  

A Single Switch Improved Quadratic Buck-Boost Converter with Continuous Output Current

作　　者：朱高中[1,2] 岳金金 ZHU Gao-zhong;YUE Jin-jin(School of Physics and Electrical Engineering,Weinan Normal University,Weinan 714099 China;School of Electircal and Control Engineering,Xi'an University of Science&Technology,Xi'an 710054 China)

机构地区：[1]渭南师范学院物理与电气工程学院,陕西渭南714099 [2]西安科技大学电气与控制工程学院,陕西西安710054

出　　处：《自动化技术与应用》2024年第11期1-5,18,共6页Techniques of Automation and Applications

基　　金：国家自然科学基金项目(51777167);2020国家级大学生创新创业训练项目(S202010723024)。

摘　　要：针对太阳能光伏发电、燃料电池等需要高增益直流电源的特点,引出了具有连续输出电流的高增益改进二次型Buck-Boost变换器。介绍了该改进变换器的工作原理及稳态特性,另外在多个方面将改进变换器与其他变换器进行了比较,由比较参数显示了改进变换器的优良特性。最后利用PSIM仿真软件建立了改进变换器仿真模型,从降压和升压的角度对改进变换器进行了仿真实验分析,从实验分析的结果来看,改进变换器性能较好,验证了其理论分析的正确性。Aiming at the characteristics of solar photovoltaic power generation and fuel cells that require high-gain DC power sources,a single-switch improved quadratic Buck-Boost converter with continuous output current is introduced in this paper,and the working principle and steady-state characteristics of the improved converter are introduced.In addition,the improved converter is compared with other converters in many aspects,and the excellent characteristics of the improved converter are shown by the comparison parameters.Finally,the improved converter simulation model is established by using PSIM.The improved converter is simulated and analyzed from the perspective of step-down and step-up.From the experimental results,the improved converter has better performance,which verifies the correctness of its theoretical analysis.

关 键 词：降压和升压 电压增益 连续输出电流 单开关 纹波电流 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM46[自动化与计算机技术—控制科学与工程]