Research on insulation protection of high voltage and high power confluence structure of aerospace based on electric field simulation

2021 International Conference on Electronics, Circuits and Information Engineering (ECIE) Pub Date : 2021-01-01 DOI:10.1109/ECIE52353.2021.00010

Zhang Yu, Zhang Guo-shuai, Wu Jianchao, Pei Xingzheng

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Abstract

In this paper, combining with a certain aerospace high-voltage and high-power distribution equipment, the uneven electric field distribution of the confluence structure, the low-pressure discharge characteristics of small gap, the creep safety control path and the characteristics of the flashover and breakdown along the surface of insulating materials were studied. Based on the analysis and research of high voltage discharge characteristics, targeted to carry out optimization and improvement of insulation protection design of high-power confluence structure, reduced the formation of uneven electric field in the high-power confluence structure under high potential difference, avoided the hidden danger of discharge in the low-pressure environment in the local small gap, increased the creepage path design of the structure, eliminated the risk of surface flashover and breakdown, fundamentally the reliability of the high voltage equipment can be improved.

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基于电场仿真的航天高压大功率汇流结构绝缘保护研究

本文结合某航空航天高压大功率配电设备，对合流结构的不均匀电场分布、小间隙低压放电特性、蠕变安全控制路径以及绝缘材料表面闪络击穿特性进行了研究。在分析研究高压放电特性的基础上，有针对性地对大功率汇流结构绝缘保护设计进行优化和改进，减少大功率汇流结构在高电位差下不均匀电场的形成，避免局部小间隙低压环境下放电的隐患，增加结构爬电路径设计;消除了表面闪络和击穿的危险，从根本上提高了高压设备的可靠性。

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2021 International Conference on Electronics, Circuits and Information Engineering (ECIE)

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