基于自适应电流追踪的光伏储能电路及其MPPT控制  

Photovoltaic Energy Storage Circuit and Its MPPT Control Based on Adaptive Current Tracking

作　　者：郑钊 郑明才[2] 赵小超[2] 李科峰[2] 郑金兵 ZHENG Zhao;ZHENG Mingcai;ZHAO Xiaochao;LI Kefeng;ZHENG Jinbing(School of Information and Automation,Qilu University of Technology,Jinan,Shandong 250353,China;School of Electronic Information,Hunan First Normal University,Changsha,Hunan 410205,China;Forty-Eighth Institute of China Electronics Technology Group Corporation,Changsha,Hunan 410111,China)

机构地区：[1]齐鲁工业大学信息与自动化学院,山东济南250353 [2]湖南第一师范学院电子信息学院,湖南长沙410205 [3]中国电子科技集团第48研究所,湖南长沙410111

出　　处：《自动化应用》2023年第21期87-91,共5页Automation Application

基　　金：湖南省重点研发计划项目(2023GK2037);湖南省教育厅科学研究重点项目(21A0583)。

摘　　要：为最大化光伏电池的输出功率,本文以Boost结构DC/DC变换器作为光伏储能电路,利用自适应变步长电流追踪算法CT-AVS对光伏电池输出功率进行MPPT控制。在CT-AVS算法中,根据光伏电池实际输出状态自适应追踪光伏电池的MPPT电流值,通过对储能电路中开关管的导通/关断控制迫使光伏电池实际输出电流实时跟踪其MPPT电流值,以使光伏电池实时工作在其MPPT工作点附近,从而最大化光伏电池输出功率。理论分析和仿真实验结果表明,基于CT-AVS进行MPPT控制的Boost结构光伏储能电路能实现光伏电池输出功率最大化。To maximize the output power of photovoltaic cells,this paper takes a Boost structure DC/DC converter as the photovoltaic energy storage circuit,and proposes the CT-AVS(Current Tracing based on Adaptive Variable Step)method for MPPT(Maximum Power Point Tracking)control of photovoltaic cell output power.In the CT-AVS,the MPPT current value of the photovoltaic cell is adaptively tracked in real-time based on the output state of the photovoltaic cell,and by controlling the on/off state of the switch in the energy storage circuit,the actual output current of the photovoltaic cell is forced to track its MPPT current value in real-time,so that the photovoltaic cell works near its MPPT state in real-time,thereby maximizing the output power of the photovoltaic cell.Theoretical analysis and simulation results show that the boost structure photovoltaic energy storage circuit based on CT-AVS MPPT control can effectively maximize the output power of photovoltaic cells.

关 键 词：光伏储能电路 Boost结构变换器 MPPT控制 电流追踪 自适应 

分 类 号：TM615[电气工程—电力系统及自动化]