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油浸倒立式电流互感器主绝缘电场分析与优化设计

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Keywords: 油浸倒立式电流互感器,主绝缘,电容,电场分布,优化设计

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Abstract:

倒立式电流互感器在设计和制造工艺上较传统正立式产品有很大的区别,产品应用初期事故率较高,而绝缘事故占有较大比例。本文针对实际的油浸倒立式电流互感器的结构特点,提出有限元法与解析法相结合的电场计算模型,分层分段计算得到主绝缘的电场分布,并分析了影响绝缘性能的主要因素。采用径向基函数(RBF)神经网络动态响应模型结合遗传算法的优化策略,以降低最大场强为目标函数进行优化主绝缘设计。优化后的绝缘结构,主绝缘内的电场强度降低,电场分布更加均匀。优化方案为油浸倒立式电流互感器的设计和制造提供了理论指导和设计参考。

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[20]  作者简介:阎秀恪 女,1973年生,博士,副教授,研究方向为电气装备耦合物理场分析与优化设计。孙阳 男,1986年生,硕士,研究方向为电气设备电磁场分析与优化设计。

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