Interactions between Cathodically Protected Pipelines and Grounding Systems of Photovoltaic Energy Installations

This paper analyzes a cathodic protection (CP) system powered by photovoltaics for oil pipelines in real-world settings, focusing on enhancing its performance in remote areas. It identifies operational challenges, particularly the interference between the photovoltaic (PV) grounding and cathodic protection grounding systems. The implementation of galvanic isolation effectively mitigates this interference, thereby improving overall reliability and protection performance. The proposed solution facilitates seamless integration of components, ensuring consistent corrosion protection and addressing the specific needs of remote oil pipeline applications. Additionally, schematics and mathematical modeling validate this approach to increase system reliability.