非隔离储能型三端口开关升压变换器在光伏系统中应用的研究  

RESEARCH ON NON-ISOLATED ENERGY STORAGE TYPE THREE-PORT SWITCHING BOOST CONVERTER IN PHOTOVOLTAIC SYSTEM APPLICATION

作　　者：刘硕[1] 高莹 辛迪熙 杨立永 Liu Shuo;Gao Ying;Xin Dixi;Yang Liyong(School of Electrical and Control Engineering,North China University of Technology,Beijing 100144,China;Beijing Electric Power Energy-Saving Key Technology Collaborative Innovation Center,Beijing 100144,China)

机构地区：[1]北方工业大学电气与控制工程学院,北京100144 [2]北京市电力节能关键技术协同创新中心,北京100144

出　　处：《太阳能学报》2021年第7期139-145,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51807001)。

摘　　要：提出一种非隔离型三端口开关升压变换器并将其应用到光伏发电系统中。该拓扑综合开关升压网络特性,通过控制3个自由度使端口间具有升压、降压、升降压特性,具有结构简单、体积较小和成本较低的优点。分析其拓扑在不同工作模式下的工作状态来实现系统的功率流动管理,阐述其控制策略来完成不同工作模式间的平滑切换,最后通过仿真和实验验证上述理论的正确性以及在光伏系统中应用的可行性。This paper presents a non-isolated three-port switching boost converter and applies it to photovoltaic power generation systems.The topology integrates the characteristics of the switching boost network.By controlling three switch tubes,the ports have boost,buck,and buck-boost characteristics,and have the advantages of simple structure,small size,and low cost.The working state of the system under different working modes is analyzed to realize the power flow management of the system.The control strategy is described to complete the smooth switching between different working modes.Finally,the correctness of the above theory and its application in the photovoltaic system are verified by simulation and experiment.

关 键 词：光伏系统 能量管理 升压变换器 多输出变换器 最大功率点跟踪 三端口变换器 

分 类 号：TM46[电气工程—电器]