Improvement of perturb and observe method for PV array under partial shading conditions

Assia Sellami, K. Kandoussi, R. El Otmani, M. Eljouad, A. Hajjaji, Fatima Lakrami
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引用次数: 4

Abstract

The power-voltage characteristic curve of solar PV modules has a multiple local maximum under partial shading conditions; in this case the conventional MPPT methods fail to track the real maximum power point which reduces the efficiency of the photovoltaic system. To keep the PV modules operate with their maximum power, this paper places a novel algorithm which is able to detect and track the global maximum under different shading conditions. The performance of the proposed method is verified by simulation and compared to the conventional perturbation and observation (P&O) method.
部分遮阳条件下光伏阵列摄动观测方法的改进
在部分遮阳条件下,太阳能光伏组件的功率电压特性曲线存在多个局部最大值;在这种情况下,传统的最大功率跟踪方法无法跟踪实际最大功率点,从而降低了光伏系统的效率。为了保持光伏组件的最大功率运行,本文提出了一种新的算法,可以检测和跟踪不同遮阳条件下的全局最大值。通过仿真验证了该方法的有效性,并与传统的扰动观测方法进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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