摘要
常规的定步长滞环比较法具有可较大程度避免振荡和误判现象的特点,在光伏阵列的最大功率点跟踪(MPPT)系统中具有广阔的应用前景,然而常规定步长滞环比较法难以获得较高的稳态跟踪精度。提出了一种变步长滞环比较法,并且结合常规的定步长滞环比较法和扰动观测法进行了对比实验,实验结果证明了该方法的有效性。
The conventional fixed-step hysteresis comparison method is widely used in the photovohaic array maximum power point tracking（MPPT） system due to a large extent avoid oscillation and the characteristics of the phenomenon of false positives.However,the conventional fixed-step method of hysteresis is difficult to obtain a high steady-state tracking accuracy.This paper presents a variable step size of the hysteresis comparison method, combined with the conventional fixed step size of the hysteresis comparison method and perturbation and observation method for comparative experiment, the experimental results demonstrate the effectiveness of the method.
出处
《电力电子技术》
CSCD
北大核心
2012年第9期4-6,15,共4页
Power Electronics
关键词
光伏阵列
最大功率点跟踪
滞环比较法
photovohaic array
maximum power point tracking
hysteresis comparison method
作者简介
沈旦立（1985-），男，浙江杭州人，硕士研究生，研究方向为电力电子应用技术及光伏发电技术。
