Indirect-lightning performance of overhead distribution networks with complex topology

The paper deals with the evaluation of the indirect-lightning performance of overhead distribution networks. The novelty of this contribution is that it takes into account the inherent complexity of distribution networks. These networks are indeed characterized by a plurality of lines (main feeder and laterals) and also by the presence of typical power components (e.g., transformers and surge arresters); they consequently differ considerably from the straight line configuration generally adopted in this type of studies. To accomplish such an evaluation we have extended the general procedure already presented in a previous paper based on the use of the LIOV code along with the Monte Carlo method. The extended procedure combines the advantage of the LIOV-EMTP computer code-that allows the calculation of lightning-induced voltages in complex distribution networks-with a heuristic technique specifically developed and integrated in the Monte Carlo routine in order to reduce the computational effort. The application of the proposed procedure to a set of distribution overhead networks characterized by different topologies, but all of the same length, shows that, in general, the usual single straight-line approach may result into a misestimation of the indirect-lightning performance. The paper also analyzes and discusses the influence of both the line terminations, and the position of the line poles. © 2009 IEEE.

Published in:
IEEE Transactions on Power Delivery, 24, 4, 2206-2213
Department of Electrical Engineering, University of Bologna, Bologna, Italy
Cited By (since 1996): 2
Export Date: 25 April 2012
Source: Scopus
doi: 10.1109/TPWRD.2009.2021038
Language of Original Document: English
Correspondence Address: Borghetti, A.; Department of Electrical Engineering, University of Bologna, Bologna, Italy; email:
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Other identifiers:
Scopus: 2-s2.0-70350276157

 Record created 2012-05-01, last modified 2018-09-13

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