Modelling of Electric and Magnetic Field Induction under Overhead Power Line Using Improved Simulation Techniques

To meet the needs for electrical energy consumption, an increasing number of overhead high-voltage (HV) power lines are being installed, which raises public concern about the possible effects on health and environment. Therefore, it is very important to determine the exact exposure to electromagnetic fields at industrial frequency. This paper presents a two-dimensional (2D) numerical model for the electric field and magnetic induction radiated by a 400 kV overhead power line. The model adopts novel optimization methodologies based on cutting-edge simulation methods combined with the Evolutionary algorithms (EAs), such as the Krill Herd Algorithm (KH) and the grasshopper optimization algorithm (GOA) to solve the numerical optimization problems. The obtained maximum values of electric field and magnetic induction were below the limits for occupational and general public exposure set by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). Finally, the obtained simulation results were found to agree well with those gained from the COMSOL Multiphysics 4.3b. To confirm the effectiveness of the proposed hybrid methods, the results obtained are also verified with measurement values available in the literature, and a good correlation is achieved.