一种改进的太阳能电池MPPT技术  

An Improved MPPT Technology for Solar Cell

作　　者：李金[1] 任稷林[2] 祁承超[3] 章周石[1] 

机构地区：[1]空军预警学院研究生管理大队,湖北武汉430019 [2]空军预警学院科研部,湖北武汉430019 [3]空军预警学院信息对抗系,湖北武汉430019

出　　处：《通信电源技术》2012年第4期13-15,共3页Telecom Power Technology

摘　　要：为了寻找一种能更好的实现太阳能电池最大功率点跟踪的方法,文中分析了太阳能电池的数学模型和在外部环境(温度、光照强度)变化的情况下太阳能电池的输出特性。介绍了太阳能电池最大功率点跟踪技术的原理,并提出了一种自适应变步长的方法,克服了传统固定步长方法的不足。仿真结果表明,该方法能够较快地跟踪光伏极板的最大功率点,使太阳能电池工作在最大功率点。In order to search out a method for the perfection of solar cell＇s maximal power point tracking, this thesis starts with the analysis on mathematical model of solar cell and its output characteristic under some external variables, including temperature, light and intensity. Then it elaborates the principle of the technology -Maximal Power Point Tracking, and proposes a new algorithm called adaptive variable-step size, to overcome the shortcoming of the traditional algorithm. The simulation works reveal that this new algorithm is able to quickly track the maximum power at the maximum power point.

关 键 词：光伏极板 最大功率点跟踪 自适应变步长 导纳增量法 

分 类 号：TM914.4[电气工程—电力电子与电力传动]