Variable-step adaptive MPPT algorithm for photovoltaic system

被引：0
作者：
机构：
[1] School of Electrical Engineering and Information, Sichuan University
[2] School of Electrical and Electronic Engineering, Huazhong University of Science and Technology
来源：
Tang, L. (freedom_tl@163.com) | 1600年 / Electric Power Automation Equipment Press卷 / 33期
关键词：
Adaptive algorithm; Maximum power point tracking; Photovoltaic cells; Stability; Variable-step;
D O I：
10.3969/j.issn.1006-6047.2013.11.023
中图分类号：
学科分类号：
摘要：
Since the slopes of photovoltaic P'(U)-U characteristic curve at two sides of the maximum power point are different, the selection of step and velocity factor in traditional variable-step algorithms is difficult. A variable-step adaptive MPPT(Maximum Power Point Tracking) algorithm is proposed, which sets the step adaptively according to the geometric characteristics of photovoltaic P'(U)-U curve. Compared with other variable-step algorithms, the proposed algorithm avoids the calculation of maximum step and velocity factor, the complicated computation process and the dead zone caused by improper step. Simulative results show its good dynamic tracking velocity and steady-state tracking precision.
引用
收藏
页码：128 / 133
页数：5
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