A calculation of the distribution of an inhomogenous low-frequency electric field in the neighborhood of a human body

摘要

The procedure of calculating, using a method of finite differences, a three-dimensional low-frequency electric field (EF) in the neighbourhood of a human body taking into account its actual shape is described. The running scheme for solving the system of three-dimensional elliptic equations is proposed using an iterative method enabling the iteration convergence to be improved. The method of running with an overlay is developed enabling to exclude from the consideration the area occupied by the conducting body, whose potential is known, and to reduce thereby considerably the computation time. An example of calculating the EF distribution in the neighbourhood of a human body in a sanitation zone of an overhead 110 k V line is carried out.