An Optical Sensor for Magnetic Field Detection of PV Panels in Renewable Power Systems

Abstract

The global demand for clean energy has driven the widespread adoption of photovoltaic (PV) technology as a sustainable energy solution. PV systems play a key role in lowering greenhouse gas emissions, combating climate change, and providing economic advantages. However, the expansion of PV systems has raised concerns about the precise defect detection of PV panels, which closely related to the efficiency of power generation. Thus, an optical sensor is designed to monitor the magnetic field intensity of PV panels in the renewable power system. An experimental platform is established and employed to simulate lighting conditions and acquire magnetic signals. Experimental results demonstrates that the interference spectrum exhibits a spectral shift under the condition of light supplied by a projection lamp, while the obtained measurement range of the sensor is 0.01-200mT. The response of the sensor presents a stable variation as the PV panel exposed in dark and light condition after repeat experiments. These findings will lead to significant advancements in improving the accuracy of magnetic field measurement for PV panels, thereby enhancing the efficiency and reliability of PV systems is essential for enabling more efficient energy conversion and fostering sustainable development.