PV Plant Failure Analysis

Failure analysis of PV system refers to the systematic investigation, root cause identification, and mechanism analysis of “failure” phenomena occurring during plant operation, including equipment malfunctions, performance degradation, abnormal power generation, and disaster-induced damage. This process involves, but is not limited to, on-site inspections, material testing, wind tunnel testing, simulation calculations, and finite element analysis to determine the causes.

To find the root cause of failures in plant components (modules, inverters, mounting, cables), providing basis for repair, damage analysis, prevention, and optimization of design and O&M strategies.

Module Failures: Rapid degradation, glass breakage, microcracks, hot spots, junction box failures - analyzing causes (material defects, manufacturing, installation, environmental aging).

Inverter Failures: Reduced efficiency, shutdowns, malfunctions - troubleshooting causes (circuit faults, cooling issues, grid fluctuations, component aging).

Mounting System Failures: Foundation settlement, column tilt, structure collapse, component damage, system instability - analyzing causes and chain reactions.

Other System Failures: Such as bracket corrosion and deformation, cable aging and short circuits, and monitoring system failures. Analyze whether these issues are related to design flaws, construction quality, or improper operation and maintenance. Failure analysis helps owners or operators pinpoint problems accurately, develop targeted solutions, reduce downtime, minimize operational losses, and extend the power plant's service life.