Photovoltaic Systems

1 Online Fault Diagnosis and Fault State Classification Methods for PV Systems

V. Manimegalai and A. Gayathri

Sri Krishna College of Technology, Coimbatore, India

P. Pandiyan

KPR Institute of Engineering and Technology, Coimbatore, India

V. Rukkumani

Sri Ramakrishna Engineering College, Coimbatore, India

DOI: 10.1201/9781003202288-1

Contents

1. 1.1 Introduction
2. 1.2 Types of Faults and Its Classifications
   • 1.2.1 Open Circuit Faults
   • 1.2.2 Short-Circuit Faults
   • 1.2.3 Symmetrical Faults
   • 1.2.4 Unsymmetrical Faults
3. 1.3 Faults in PV Systems
   • 1.3.1 Hot Spots in PV Module
   • 1.3.2 Delamination of PV Module
   • 1.3.3 Discoloration of Encapsulation of PV Module
   • 1.3.4 Corrosion
   • 1.3.5 Micro Crack, Snail Trail, and Cell Damage
   • 1.3.6 Shading Fault
4. 1.4 Comparison of ...