最大功率点追踪的太阳能发电全局控制方法  

Global control method for solar power generation with maximum power point tracking

作　　者：张健 柯春根 戎瑜 张炜 代飞 ZHANG Jian;KE Chungen;RONG Yu;ZHANG Wei;DAI Fei(State Grid Maanshan Electric Power Supply Company,Maanshan 243000,China)

机构地区：[1]国网马鞍山供电公司,安徽马鞍山243000

出　　处：《电子设计工程》2025年第3期174-177,182,共5页Electronic Design Engineering

基　　金：安徽省重点研究与开发计划项目(2019YF162131006)。

摘　　要：太阳能发电容易受到电网监测设备和反馈信号不稳定的影响,导致太阳能发电过程控制性能较差,并网时功率损耗较大。为此,提出最大功率点追踪的太阳能发电全局控制方法。构建电流-电压等效数学模型,分析光伏阵列输出特性,确定太阳能发电系统最大功率输出的唯一点。使用Boost电路作为最大功率输出点的前级电路,求解最大功率输出点。利用步长调整点快速跟踪新的最大功率点,实现太阳能发电全局控制。仿真结果表明,所提方法在不同温度下的最大功率点追踪准确性较好,仅需1.8 s即可达到稳态发电输出功率,其范围为71~73 kW。Solar power generation is easily affected by unstable power grid monitoring equipment and feedback signals,resulting in poor control performance of the solar power generation process and significant power loss when connected to the grid.Therefore,a global control method of maximum power point tracking for solar power generation is proposed.Build the current voltage equivalent mathematical model,analyze the output characteristics of photovoltaic system,and determine the unique point for the maximum power output of the solar power generation system.Use the Boost circuit as the front-end circuit of the maximum power output point to solve the maximum power output point.Quickly track new maximum power points using step size adjustment points to achieve global control of solar power generation.The simulation results show that the maximum power point tracking accuracy of the proposed method is good at different temperatures,and the steady-state generation output power can be achieved in only 1.8 seconds,ranging from 71~73 kW.

关 键 词：最大功率点追踪 太阳能发电 全局控制 BOOST电路 

分 类 号：TN29[电子电信—物理电子学]