Reliability Analysis of PV Inverters Considering Locational Impact

Abstract

The inverter system is an important piece of equipment for efficiently absorbing the electricity generated from renewable sources and ensuring reliable grid connections. As power electronics advance, inverter conversion efficiency is improving and photovoltaic (PV) energy is becoming a major contributor to the global supply of renewable energy. However, a key consideration is how reliable the PV inverters are. The dependability performance of PV inverters can be influenced by various environmental parameters, such as solar radiation and temperature (collectively referred to as Mission Profile). Given that these conditions vary by location, it is necessary to take them into account when evaluating the dependability performance of a PV inverter. The Mission Profile, including the local solar radiation and surrounding temperature, are important factors determining the lifespan of a PV inverter. This research examines how environmental variables and geographic position affect the dependability performance of PV converters and finds that these elements have a significant bearing on that performance.