Application of Electronic Optimizers to Enhance the Operational Safety of Photovoltaic Installations in Residential Areas

This article examines the advantages and disadvantages of deploying photovoltaic power plants in residential areas, considering both their current development status and specific operational risks, such as the unpredictability associated with potential faults. It highlights that errors of existing PV technologies can pose risks, including the potential for fire and electrocution. To improve efficiency and address these identified issues, the paper emphasizes the benefits of using additional electronic equipment, called “optimizers”, which, in conjunction with the inverters, can provide arc-fault circuit interruption and rapid shutdown of the photovoltaic systems. These technologies are designed to reduce faults and enhance operational safety, thereby reducing the risk of electrocution for maintenance personnel. They are recommended especially for rooftop PV systems that are affected by shading conditions. Furthermore, experimental results indicate that the use of such optimizers can lead to a power gain of up to 50% in partial shading.