Fuzzy logic based MPPT approach in a grid connected photovoltaic system

The 8th International Conference on Software, Knowledge, Information Management and Applications (SKIMA 2014) Pub Date : 2014-12-01 DOI:10.1109/SKIMA.2014.7083525

Rajib Baran Roy, E. Basher, Rojoba Yasmin, M. Rokonuzzaman

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引用次数: 17

Abstract

The maximum power point tracking (MPPT) is required for harnessing maximum power from the grid connected photovoltaic (PV) system. This paper describes a real time implementation of a grid connected photovoltaic system based on the fuzzy MPPT algorithm to control the power of the PV panel on the generation side as well as the current of the voltage source inverter (VSI) which is connected to the grid side. The performance of the control algorithm is verified by simulation and experiment. The implementation of the fuzzy algorithm is realized on a dSPACE 1104 single board by controlling a boost chopper and a VSI. The experimental results prove the effectiveness of the control techniques of the proposed fuzzy logic by fixing the MPPT in the I-V curve of the solar panel. The DC bus voltage controller based on Lyapounov theory and the hysteresis based current control of the inverter allow a quasi total transit of the maximum extracted power from the solar panel to the grid under unit power factor operation.

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基于模糊逻辑的光伏并网系统最大功率跟踪方法

最大功率点跟踪(MPPT)是利用并网光伏(PV)系统的最大功率所必需的。本文介绍了一种基于模糊MPPT算法的并网光伏系统的实时实现，以控制发电侧光伏板的功率以及并网侧电压源逆变器(VSI)的电流。通过仿真和实验验证了该控制算法的性能。通过控制升压斩波器和VSI，在dSPACE 1104单片机上实现了模糊算法的实现。实验结果证明了所提出的模糊逻辑控制技术的有效性，并将MPPT固定在太阳能电池板的I-V曲线上。基于李亚普诺夫理论的直流母线电压控制器和基于磁滞的逆变器电流控制允许在单位功率因数运行下从太阳能电池板提取的最大功率准全传输到电网。

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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来源期刊

The 8th International Conference on Software, Knowledge, Information Management and Applications (SKIMA 2014)

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