摘要
针对常用的最大功率点跟踪算法(MPPT)各自的缺点,运用CV法快速启动MPPT控制,再根据功率变化量选择采用基于温度系数修正的CV法或小步长PO法跟踪最大功率点,给出了该方法的工作原理及控制流程图,并基于Simulink平台搭建了该方法的仿真模型,进行了仿真分析。结果表明,该方法启动MPPT的速度明显加快,最大功率点跟踪过程中未发生误判现象,功率损耗明显减小,且在温度和光照变化时能准确、平稳地跟踪到最大功率点。
In order to solve the problem in the maximum power point tracking （MPPT） of photovoltaic cell, the con- stant voltage （CV） method is used to start MPPT eontrol. According to the power variation, the CV method based on temperature coefficient correction or small step perturbation and observation （PO） method is selected to track the maxi- mum power point. The principle and the control flowchart are given and the simulation model is established in Simulink platform. The simulation results show that the method can start MPPT control fast; there is no miscalculation phenome- non when tracking the maximum power point and the power loss reduced signifieantly~ it can track the maximum power point accurately and steadily when temperature and illumination ehange.
出处
《水电能源科学》
北大核心
2013年第12期254-256,共3页
Water Resources and Power
作者简介
魏臻珠（1977-），女，讲师，研究方向为电力系统运行分析与控制，E-mail：jlbh_wzz@tom．com
