Title :
HVDC ground electrode heat dissipation in an N-layer soil
Author :
Greiss, E. ; Mukhedkar, D. ; Houle, J.-L. ; Do, X.D. ; Gervais, Y.
Author_Institution :
Ecole Polytech., Montreal, Que., Canada
fDate :
10/1/1988 12:00:00 AM
Abstract :
The temperature distribution in an N-layer soil, due to high-voltage direct-current (HVDC) injection via ground electrodes, was computed using finite-difference methods. The temperature profiles for various ground electrode shapes buried in a two-layer soil were computed using these same techniques. The results obtained were then compared with results obtained experimentally in the laboratory. A sensitivity analysis was performed on the effect of the height of the top layer of a two-layer earth model. The computed results agree very well with those obtained experimentally. The effect of varying the height of the top layer of a two-layer earth was then investigated. The computations indicate that the temperature can be predicted as a function of this height
Keywords :
difference equations; earth electrodes; HVDC ground electrode heat dissipation; N-layer soil; finite-difference methods; two-layer earth model; Distributed computing; Earth; Electrodes; Finite difference methods; HVDC transmission; Land surface temperature; Shape; Soil; Temperature distribution; Temperature sensors;
Journal_Title :
Power Delivery, IEEE Transactions on