Research on Electromagnetic Field Simulation and Testing of Ultra-High Voltage Transmission Lines in Renewable Energy Power Systems

In the context of global energy transition, with the development of renewable energy power systems and the increasing application of ultra-high-voltage (UHV) transmission lines, the potential impacts of the electromagnetic field (EMF) problems generated by them on the environment and human health has garnered increasing attention. This study develops and applies advanced power frequency EMF simulation software to comprehensively explore the distribution characteristics of power frequency EMF around UHV transmission lines in the presence of the simulated human body. The results indicate that the human body significantly affects the power frequency electric field strength in both vertical and horizontal directions, particularly within 100 cm of the human body, where the distortion coefficient decreases rapidly with increasing distance. In contrast, the influence of the human body on the magnetic field distribution is almost negligible. In addition, this study further reveals the the special influence of protruding areas such as the head and shoulders on electric field distribution. This study not only deepens the understanding of the power frequency EMF under UHV transmission lines, but also contributes to the sustainable development of renewable energy power systems.