Improved Photovoltaic Power Generation Maximum Power Tracking Method

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Wang, Tantan^1 ; Sun, Shumin^2 ; Wan, Dechao^1 ; Shao, Taiheng^1 ; Wang, Hongzhao^3

Shandong University of Technology, Shandong Province, Zibo, China^1

Power Research Institute of State Grid Shandong Power Co., Shandong Province, Jinan, China^2

Shandong Electric Power Engineering Consulting Institute Co., Shandong Province, Jinan, China^3

关键词: Constant voltage method;    External environments;    Maximum Power Point Tracking;    Maximum power tracking;    Photovoltaic modules;    Photovoltaic power generation;    Photovoltaic power generation systems;    Power point tracking;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/3/032111/pdf
DOI  :  10.1088/1757-899X/452/3/032111

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The output power of photovoltaic modules is affected by factors such as temperature and illumination. In order to improve the efficiency of photovoltaic power generation systems, it is necessary to track and control their output power. This paper introduces the advantages and disadvantages of the traditional maximum power point tracking method, and proposes a three-stage maximum based on the combination of constant voltage method-variable step disturbance observation method-conductance method based on the traditional maximum power point tracking method. Power point tracking method. The method starts tracking from the vicinity of the maximum power point, reduces the tracking time, and avoids the problem that the oscillation cannot be stabilized near the maximum power point and the tracking failure occurs due to the change of the external environment. To further study the maximum power point tracking method and lay a foundation for improving the efficiency of photovoltaic power generation.