Simplified Modeling Of The Human Body
Exposed To Power Substation Electric Field Using
Boundary Element Analysis
Author(s)
D. Poljak, N. Kovač, S. Kraljević & C. A. Brebbia
Abstract
This paper deals with human exposure to extremely low frequency (ELF) electric
fields generated by a transformer substation. The problem is twofold, i.e. it
implies the assessment of the power substation electric field and the related
current density induced inside the human body. The ELF electric field generated
from a power substation is determined by solving the Scalar Potential Integral
Equation (SPIE) using the Source Element Method (SEM), a variant of the
Indirect Boundary Element Method (IBEM). Knowing the electric field in the
vicinity of a substation the current density induced inside a simplified cylindrical
model of the human body is obtained by solving the Pocklington integrodifferential
equation using the Galerkin-Bubnov Indirect Boundary Element
Method (GB-IBEM).
1 Introduction
Human exposure to extremely low frequency (ELF) fields generated by power
substations initiated an increasing public concern regarding possible adverse
health effects. A lot of controversy has been caused due to the possible link
between the low frequency fields and leukaemia, or certain forms of tumour (e.g.
nervous tissue tumour) [1–3] in humans. As the displacement currents at
extremely low frequencies are negligible the electric and magnetic fields can be
analyzed separately. In the case of the magnetic field exposure the internal
currents form close loops, while in the electric field exposure the currents
induced in the body have the axial character.
Keywords
Related Book
Other papers in this volume
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