絶縁破壊特性の体積依存性に基づいた最適電極形状の自動求解

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  • Electrode Contour with Optimized Electrical Insulation Performance Based on Volume Effect of Eielectric Breakdown Characteriatics
  • ゼツエン ハカイ トクセイ ノ タイセキ イゾンセイ ニ モトズイタ サイテキ

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For a reliable insulation design of HV (high voltage) power apparatus, potimization of electric field distribution has been an important technique. We ave been developing highly efficient algorithm for an automatic electric field optimization using a personal computer. However, to make the optimization technique more powerful and more accurate for electrical insulation design of HV power apparatus, we should consider not only the electric field distribution but also dielectric breakdown characteristics. Iin this paper, we describe a new optimization technique which enables us to calculate an optimum electrode contour based on volume effect of dielectric breakdown characteriatics. Using a calulation example, the optimum electrode contour could be calculated with dependency of dielectric breakdown characteriatics on stressed volume. consequently, we could confirm that the optimization algorithm on dielectric insulation performance has much higher efficiency for insulation design of HV power apparatus compared with previous optimization algorithm for electric field.

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