4. Novel Crossover Wiring of DC Cable for Photovoltaic Array Against Lightning Induced Overvoltage

The chapter 'Novel Crossover Wiring of DC Cable for Photovoltaic Array Against Lightning Induced Overvoltage' delves into the mechanism of electromagnetic coupling in photovoltaic mounting systems. It discusses how lightning currents generate strong electromagnetic radiation, leading to induced voltages in DC cables and potential damage to electronic devices such as bypass diodes and inverters. The computational model for induced voltages is presented, followed by a detailed examination of electromagnetic coupling in metal brackets and frames. The chapter proposes a novel crossover wiring scheme to minimize induced voltages, demonstrating its effectiveness through experimental validation and comparison with traditional wiring schemes. The proposed scheme is shown to significantly reduce induced voltages, making it a valuable contribution to the field of photovoltaic system protection against lightning strikes.