Performance Evaluation of Faults in a Photovoltaic Array Based on V-I and V-P Characteristic Curve

• Main Authors: Lodhi, Ehtisham, Lina, Wang, Pu, Yang, Javed, M. Yaqoob, Lodhi, Zeeshan, Zhijie, Jiao, Javed, Usman
• Format: Conference Proceeding
• Language: English
• Subjects: (V-P) Voltage Power; Characteristic-curve; component; Degradation; Mechatronics; Performance evaluation; Photovoltaic systems; progressive faults; PV (photovoltaic); Software; Software algorithms; V-I (voltage Current); Voltage measurement
• ISSN: 2157-1481
• DOI: 10.1109/ICMTMA50254.2020.00027

The prediction and forecasting of faults occurring in photovoltaic (PV) system is one of the important aspect to escalate the reliability, output power generation, proficiency, lifetime and effectiveness of overall system. In this article, the behavior of PV array is studied under various faulty circumstances and new approach has offered for the better performance assessment of PV array. This approach is established on the analysis of peculiarities displayed by voltage power (V-P) and voltage-current (V-I) characteristics curves of PV array under different faulty conditions. The proposed technique can be used to identify and classify the five common faults in PV system. These progressive faults (includes open circuit, line-to-line, partial shading, degradation and bridging faults) have been occurred at the basic components of PV cell and at the connection point between PV modules. The characteristic curves under normal and faulty conditions have been compared by utilizing Matlab/Simulink environment. Hence, the suggested method can be utilized to determine the important fact about the health PV array.