基于改进恒定电压法的光伏发电MPPT控制技术研究  

Research on MPPT control technology of photovoltaic power generation based on improved constant voltage method

作　　者：寇奇 魏立明[1] 赵信淳 王楷硕 KOU Qi;WEI Liming;ZHAO Xinchun;WANG Kaisuo(School of Electrical and Computer Science,Jilin Jianzhu University,Changchun 130118,China)

机构地区：[1]吉林建筑大学电气与计算机学院,吉林长春130118

出　　处：《技术与市场》2025年第2期7-13,共7页Technology and Market

摘　　要：由于环保意识增强和能源问题的影响,光伏发电技术一直是国内外学者主要研究热点之一,但光伏转换效率受温度和光照影响,所以最大功率点追踪(MPPT)技术一直是主要研究方向之一。提出基于改进恒定电压法用于光伏发电的最大功率点追踪算法,该方法采用恒定电压法与功率修正法结合的控制方式,在恒定电压法快速追踪到最大功率点时,设置固定电压为290 V后引入功率修正法,加入功率修正法可以保证前后功率差值进行修正,避免出现差值过大和功率震荡较大影响误判。所提方法采用MATLAB/Simulink中搭建仿真模型,对最大功率追踪问题进行仿真,仿真结果表明该方法对恒定电压法追踪的稳定性和高效性。Affected by environmental awareness and energy problems,photovoltaic power generation technology has always been one of the main research hotspots of scholars at home and abroad,but the photovoltaic conversion efficiency is affected by temperature and light,so maximum power point tracking(MPPT)technology has always been one of the main research directions.In this paper,the maximum power point tracking algorithm for photovoltaic power generation based on the improved constant voltage method is proposed,which adopts the control mode combining the constant voltage method and the power correction method,when the constant voltage method is quickly tracked to the maximum power point,the fixed voltage is set to 290 V,and the power correction method can be adopted to ensure that the power difference between the front and rear can be corrected,so as to avoid the excessive difference and the impact of large power oscillation.The proposed method uses MATLAB/Simulink to build a simulation model to simulate the maximum power tracking problem,and the simulation results show that the proposed method has the stability and efficiency of the constant voltage method.

关 键 词：光伏发电 恒定电压法 功率修正法 最大功率点追踪(MPPT) 

分 类 号：TM615[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]