摘要
光伏电池的输出功率与太阳辐射和环境温度变化,若不加以控制,将不会以最大功率输出。本文提出了一种变步长电导增量法,在光伏发电系统实现最大功率点跟踪。应用MATLAB建立光伏电池板的最大功率点跟踪变步长电导增量法的仿真模型并仿真。仿真结果表明,变步长电导增量法跟踪最大功率点效果良好,相比传统电导增量法,减弱了最大功率点附近振荡的情况,适合于快速变化的环境条件,具有良好的动态和稳态特性。
The power available at the output of photovoltaic cells keeps changing with solar insolation and ambient temperature.If the power output of photovoltaic cells is not well controUed, it will not work at the maximum point.This paper presents a variable step size incremental conductance method for tracking maximum power point in photovoltaic power systems.in this paper, simulation mode/ofphotovoltaic system＇ s maximum power point traeking（MPPT）is devdoped in the MATLAB software.The results ofsimtt/adon show this control algorithm significantly improves the efficiency during the tracking phase.As compared to the tradition algorithm about MPPT in photovoltaie power systems.It is especially suitable for fast changing environmentai conditions.It reduces the oscillation around the maximum power point with good dynamic and steady-state characteristics. Key words：
出处
《电子世界》
2013年第22期26-27,共2页
Electronics World
基金
江苏省"青蓝工程"绿色建筑技术科技创新团队资助项目
徐州地区既有居住建筑能耗调查及节能改造技术研究(住房和城乡建设部科技计划项目:2012-K1-6)
