A smart fault detection approach for PV modules using Adaptive Neuro-Fuzzy Inference framework

Abstract

This paper presents an intelligent photovoltaic (PV) fault detection system using Adaptive Neuro-Fuzzy Inference System (ANFIS) methodology. To accomplish this objective, it is necessary to train the ANFIS model for an effective PV fault detection and classification system by deploying Grid Partition (GP) and Subtractive Clustering (SC) strategies using some research data. Moreover, the ANFIS SC approach’s performance was better and more accurate than the ANFIS GP approach to predict and classify various PV systems’ faults. Additionally, the trained model with the ANFIS SC approach demonstrated excellent performance when it was compared with the unseen empirical data points, which were not included in the training process. The values obtained from statistical analysis such as coefficient correlation R, root mean squared error (RMSE), and coefficient of determination R2 were 0.9989, 0.0383, and 0.9978. These obtained results show that the ANFIS SC framework with cluster radius 0.6 can remarkably diagnose the PV system faults with high accuracy.

Keywords

• Fuzzy logic
• Fuzzy control
• Adaptive Neuro-Fuzzy Inference System
• Photovoltaic systems
• Photovoltaic faults