Research on a Photovoltaic MPPT Based on Fuzzy Control Algorithm

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Han, Dexiao^1 ; Wang, Yanping^1 ; Wang, Zhisen^1 ; Liu, Li^1

School of Information Science and Engineering, Dalian Polytechnic University, Dalian, China^1

关键词: Development and utilizations;    External conditions;    Maximum power point;    Mppt algorithms;    Observation method;    Photovoltaic panels;    Photovoltaic power generation systems;    Simple structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/7/072036/pdf
DOI  :  10.1088/1757-899X/490/7/072036

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In photovoltaic power generation systems, the output power of photovoltaic panels is greatly affected by the environment. Experiments show that each point formed by temperature and light intensity corresponds to a power output curve of a photovoltaic panel. Under conditions with certain external conditions, guarantees Photovoltaic panel output maximum power becomes a difficult problem for PV development and utilization. In the traditional MPPT algorithm, disturbance observation method is widely used. Although the method has fast response and simple structure, the accuracy is not high, and it fluctuates at the maximum power point. More severe, causing a waste of power to a certain extent. For this problem, an improved algorithm based on fuzzy control is proposed to optimize the disturbance observation method to further increase the tracking speed of the maximum power and to eliminate the static error to some extent. The output power of the photovoltaic panel is kept at its maximum.