Distributed photovoltaic reliability research

With the increasing emphasis on renewable energy, the importance of distributed photovoltaic systems in the energy sector is increasing. In this paper, the fault tree analysis (FTA) method is used to study the reliability of distributed photovoltaic systems. The failure modes and interrelationships of components such as photovoltaic modules, combiner boxes, inverters, energy storage devices and monitoring systems are discussed, and the weak links of the system are revealed. The results show that the string PV system has more advantages in matching the optimal working point of the PV array. This paper provides a theoretical basis for improving the stability and prolonging the service life of distributed photovoltaic systems.