Comparison of Three-Point P&O and Hill Climbing Methods for Maximum Power Point Tracking in PV Systems

2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC) Pub Date : 2019-02-01 DOI:10.1109/PEDSTC.2019.8697273

S. Fatemi, Milad Samady Shadlu, Amin Talebkhah

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引用次数: 22

Abstract

Solar energy and photovoltaic (PV) systems will play an important role in the future production market. One of the challenges in optimal operation of solar PV systems is the low efficiency of these systems compared to fossil fuel production units. The reason is the sudden changes in climate factors, including the temperature and intensity of radiation in the environment. One of the solutions used to solve the low power efficiency problem in PV systems is the MPPT techniques which have been widely investigated by many researchers. In this paper, a new form of conventional Perturb and Observe (P&O) method named three-point P&O is introduced and compared with Hill Climbing (HC) method under constant and variable atmospheric conditions. The DC-DC converter is Boost which has an acceptable performance in solar applications. The simulation results in MATLAB and experimental results indicate a better performance of three-point P&O method in terms of output power fluctuations and maximum power point tracking capability.

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光伏系统最大功率点跟踪的三点P&O和爬坡方法比较

太阳能和光伏(PV)系统将在未来的生产市场中发挥重要作用。太阳能光伏系统优化运行的挑战之一是与化石燃料生产装置相比，这些系统的效率较低。原因是气候因素的突然变化，包括环境中的温度和辐射强度。解决光伏系统低功率效率问题的解决方案之一是MPPT技术，该技术已受到许多研究者的广泛研究。本文介绍了一种新的常规扰动观测法——三点扰动观测法，并与恒、变大气条件下的爬坡法进行了比较。DC-DC转换器是Boost，在太阳能应用中具有可接受的性能。MATLAB仿真和实验结果表明，三点P&O方法在输出功率波动和最大功率点跟踪能力方面具有较好的性能。

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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2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)

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