Influence of Space Charge on Upward Leader Initiation

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概要

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• Upward lightning is often observed on the coast of the Sea of Japan in winter season. Space charges by corona discharges at the grounded structures and on the ground or from the sea surface greatly affect the upward leader initiation, however, no studies of the effect of space charges have been carried out yet. In this paper, we calculate the electric fields around a conductor considering the effect of corona discharge from the conductor itself and on the ground using the DC ion flow calculation program that was developed by CRIEPI. Calculation results show that the upward leader initiation criteria are difficult to be satisfied for small conductors than large conductors because space charge reduces the electric field for the small conductors, and that space charge from conductors gives remarkable effects including polarity change on the ground level electric field in the downwind area.

• 社団法人 電気学会の論文
• 2005-08-01

著者

• Shindo Takatoshi

  Central Reserch Institude Of Electric Power Ind.

• Shindo Takatoshi

  Electric Power Engineering Research Laboratory Central Research Institute Of Electric Power Industry

• SUNAGA Yoshitaka

  Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry

• Sunaga Yoshitaka

  Environmental Science Research Laboratory Central Research Institute Of Electric Power Industry

• Shindo Takatoshi

  Electric Power Engineering Res. Lab. Central Res. Inst. Of Electric Power Ind. (criepi)

関連論文

• Lightning Occurrence Data Observed with Lightning Location Systems of Electric Utilities in Japan : 1992-2001
• Risk-based Replacement Scheme : Rational Replacement under Supply Risk
• Influence of Space Charge on Upward Leader Initiation
• A Calculation Method of Effective Height of Structures in Lightning Studies

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