Fault diagnosis and classification for photovoltaic arrays based on principal component analysis and support vector machine

2018 International Conference on New Energy and Future Energy System

Chen, L.C.^1,2 ; Lin, P.J.^1,2 ; Zhang, J.^1,2 ; Chen, Z.C.^1,2 ; Lin, Y.H.^3 ; Wu, L.J.^1,2 ; Cheng, S.Y.^1,2

College of Physics and Information Engineering, And Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou

350116, China^1

Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou

213164, China^2

College of Computer and Information Sciences, Fujian Agriculture and Forest University, Fuzhou

350002, China^3

关键词: A-transform;    Classification models;    Open circuits;    Photovoltaic;    Photovoltaic arrays;    PV arrays;    Simulation systems;    Supporting vector machine;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/188/1/012089/pdf
DOI  :  10.1088/1755-1315/188/1/012089

来源: IOP

【 摘 要 】

In order to dig out more typical features of photovoltaic (PV) with multitudinous characteristic parameters, and realize fault diagnosis and classification for PV arrays effectively. A method based on principal component analysis (PCA) has been proposed in this paper. At first, the data set of PV array is processed by PCA and then a transform matrix is produced. Second, the processed data will be classified by supporting vector machine (SVM). Finally, a classification model will be built. Two sets of data, collected from PV simulation system and actual PV array, are adopted to examine this method. The result shows that the method is able to recognize four kinds of states accurately (normal, open circuit, short circuit and partial shadow). Consequently, the fault of PV array can be diagnosed and classified.