光伏系统电池充电中MPPT策略的比较

J. H. Oliveira, L. P. Carlette, A. F. Cupertino, V. F. Mendes, W. Boaventura, H. Pereira
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引用次数: 1

摘要

在独立的光伏系统中,吸收大部分可用能量是至关重要的。因此,为了在给定的一组气候条件下提取太阳能电池板的最大功率,它使用最大功率点跟踪器(MPPT)。MPPT由一个控制太阳能板电压的电源转换器组成。在此背景下,本工作比较了文献中提出的三种MPPT算法:摄动和观察,dP -摄动和观察以及改进的摄动和观察在光伏独立系统中的瞬时和动态效率。所分析的系统由一块48w的太阳能电池板、一块60ah的电池和一个基于buck转换器的充电器组成。在太阳辐照度变化期间,算法呈现出不同的瞬时效率,这可能导致阴天吸收的能量减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of MPPT strategies in battery charging of photovoltaic systems
In photovoltaic standalone systems it is crucial to absorb most of the available energy. Thus, in order to extract the maximum power of a solar panel for a given set of climatic conditions, it is used maximum power point tracker (MPPT). The MPPT consists in a power converter which controls the solar panel voltage. In this context, this work compares the instantaneous and dynamic efficiency of three MPPT algorithms proposed in literature: perturb and observe, dP - perturb and observe and modified perturb and observe used in a photovoltaic standalone systems. The system analyzed is composted by a 48 W solar panel, a battery of 60 Ah and a charger based on a buck converter. During solar irradiance variations the algorithms presented different instantaneous efficiencies, what can produce reduction in energy absorbed during cloudy days.
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