基于改进电导增量法的光伏MPPT控制研究  

Research on Photovoltaic MPPT Control Based on Improved Conductance Increment Method

作　　者：于鸿 吴振奎[1,2] 李国政 郑学臣 YU Hong;WU Zhenkui;LI Guozheng;ZHENG Xuechen(School of Information Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;Key Laboratory of Photothermal and Wind Power Generation in Inner Mongolia,Baotou 014010,China)

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010 [2]内蒙古自治区光热与风能发电重点实验室,内蒙古包头014010

出　　处：《电工技术》2023年第8期72-75,共4页Electric Engineering

基　　金：内蒙古自治区科技计划项目(编号2020GG0159)。

摘　　要：受环境变化和光伏电池材料的影响,目前光伏发电效率普遍不高,太阳能利用率较低,因此对光伏系统进行最大功率点追踪(MPPT)控制,设计一种恒定电压法与电导增量法相结合的控制方式。通过恒定电压法快速追踪到最大功率点附近,再引进小步长的电导增量法进一步优化稳态性能。通过MATLAB/Simulink平台进行光伏发电最大功率追踪仿真,验证该方法可以大幅度提升系统的动态性能并具有良好的稳态特性。Due to environmental changes and the influence of photovoltaic cell materials,the current photovoltaic power generation efficiency is generally not high,and the solar energy utilization rate is low.Therefore,the maximum power point tracking(MPPT)control is carried out for the photovoltaic system,and a control method combining the constant voltage method and the conductance increment method is designed.The constant voltage method is used to quickly track to the vicinity of the maximum power point,and then a small-step conductance increment method is introduced to further optimize the steady-state performance.The maximum power tracking simulation verification of photovoltaic power generation is carried out through the MATLAB/Simulink platform.The test proves that this method can greatly improve the dynamic performance of the system and has good steady-state characteristics.

关 键 词：光伏发电 最大功率点追踪 恒定电压法 电导增量法 

分 类 号：TM615[电气工程—电力系统及自动化]