提高光伏系统电力跟踪效率的DC-DC变换器的优化选择:光伏系统DC-DC变换器的优化选择

2015 IEEE International Conference on Computational Intelligence and Computing Research (ICCIC) Pub Date : 2015-12-01 DOI:10.1109/ICCIC.2015.7435708

K. Kanimozhi, A. Shunmugalatha

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引用次数: 4

摘要

本文分析了光伏系统在不同气候条件下的性能，提出了一种优化的拓扑结构来改善跟踪效率条件。最大工作点是由其特性曲线的交点确定的，由于系统中的损耗，该交点并不总是相同的。使用DC-DC转换器和最大功率点跟踪系统(MPPT)来避免这些损失。针对MPPT，已经提出了不同的算法。正确的DC-DC变换器结构的选择还没有得到广泛的研究。本文采用改进的扰动与观测(P&O) MPPT控制器对带阻性负载的Cuk变换器与光伏组件连接进行了实践和理论分析，证明了Cuk对光伏系统最优性能的影响。

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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Optimal choice of DC-DC converter for enhancement of power tracking efficiency in photovoltaic system: Optimal choice of DC-DC converter for PV system

This paper analyses the performance of photovoltaic (PV) system in different climatic conditions and proposes an optimal topology to improve the tracking efficiency conditions. The maximum operating point is determined by the intersection point of its characteristic curves which is not always same due to losses in the system. DC-DC converters together with maximum power point tracking systems (MPPT) are used to avoid these losses. Different algorithms have been proposed for MPPT. The choice of the right DC-DC converter configuration has not been studied so widely. In this paper practical and theoretical analysis of Cuk converter with resistive load connected to PV modules with a modified Perturb and Observe (P&O) MPPT controller is done and influence of Cuk in the optimum performance of the PV system is proved.

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2015 IEEE International Conference on Computational Intelligence and Computing Research (ICCIC)

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