不同环境条件下聚合物绝缘子的优化设计

2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2021-12-03 DOI:10.1109/catcon52335.2021.9670478

Vaisakh K P, A. R, U. S

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引用次数: 3

摘要

室外绝缘子故障对输配电网络有不利影响。重湿、重污染、高海拔、雾霾等环境条件是绝缘子失效的主要原因之一。这些条件改变了电场，导致绝缘子中闪络的概率增加。电场的减小可以通过优化绝缘子的场敏感参数来实现，如端金属接头(三点连接处)直径、棚间距、棚直径和电晕环。采用有限元法和线性优化相结合的方法，以11kV和220kV聚合物绝缘子为研究对象。通过对原绝缘子和优化后的绝缘子在各种环境条件下的现场分析，验证了优化的有效性。所得结果表明，在各种环境条件下，电场的减小都是理想的。

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Design Optimization of Polymeric Insulators Under Various Environmental Conditions

Outdoor insulator failures have adverse effects on transmission and distribution networks. One of the major reasons for the insulator failure is environmental conditions such as heavy wetting, heavy pollution, high altitude and haze. These conditions alter the electric field, causing an increase in probability of flashover in insulators. Reduction in the electric field can be achieved by optimizing field-sensitive parameters of an insulator such as end metal fittings (triple point junction) diameter, shed spacing, shed diameter and corona ring. 11kV and 220kV polymeric insulators are taken for the study by integrating the Finite Element Method and linear optimization. The effectiveness of optimization is validated using field analysis under various environmental conditions for both the original and optimized insulators. The obtained results show the reduction of electric field in every environmental conditions taken which is desirable.

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2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)

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