Popis: |
An integrated statistical approach, based on Monte Carlo simulation, is developed in thispaper for probabilistic exposure assessment under HVDC transmission lines. The validity andadequacy of traditional, deterministic, models for HVDC ionized fields have been repeatedlyquestioned in literature. The present work recognizes the probabilistic nature of the exposurevariables, electric field intensity and ion current density, and caters for their inherentuncertainties in order to simulate the realistic dc line environment . Randomness in the factorsinfluencing the ionized field quantities is identified and accounted for, namely, the windspeed, the line sag, the corona onset gradient, and the location of objects under the line. Basedon an overall probabilistic approach, the integrated influence of these factors on the exposureparameters is evaluated and assessed. |