电晕老化对纳米复合PI薄膜介电性能的影响

doi:10.3969/j.issn.1008-0198.2024.04.007

湖南电力 ›› 2024, Vol. 44 ›› Issue (4): 47-51.doi: 10.3969/j.issn.1008-0198.2024.04.007

电晕老化对纳米复合PI薄膜介电性能的影响

张良^1,4, 张舒萌^2,4, 陈亦杰^3,4, 刘道生⁴

1.长安湖南新能源科技有限公司,湖南益阳 413000;
2.湖南有色环保研究院有限公司,湖南长沙 410125;
3.江西中烟工业有限责任公司广丰卷烟厂,江西广丰 334600;
4.江西理工大学,江西赣州 341099

收稿日期:2024-01-12 出版日期:2024-08-25 发布日期:2024-09-09
作者简介:张良(1994),男,硕士,主要研究方向为高电压绝缘与新能源技术。

Effect of Corona Aging on Dielectric Properties of Nanocomposite PI Thin Films

ZHANG Liang^1,4, ZHANG Shumeng^2,4, CHEN Yijie^3,4, LIU Daosheng⁴

1. Chang'an Hunan New Energy Technology Co.,Ltd., Yiyang 413000, China;
2. Hunan Nonferrous Environmental Research Institute Co.,Ltd.,Changsha 410125, China;
3. Guangfeng Cigarette Factory, Jiangxi China Tobacco Industry Co.,Ltd.,Guangfeng 334600, China;
4. Jiangxi University of Science and Technology, Ganzhou 341099, China

Received:2024-01-12 Online:2024-08-25 Published:2024-09-09

摘要/Abstract

摘要： 高温超导非晶合金变压器作为低温运行设备具有节能降耗的功能。选择耐低温的聚酰亚胺(PI)薄膜为高温超导非晶合金变压器主绝缘材料,改进PI薄膜的制备工艺,搭建电晕老化系统,对PI薄膜进行电晕老化预处理。对经电晕老化预处理后的薄膜的介电特性进行研究,发现液氮环境中电晕老化薄膜的介质损耗角正切值要低于常温环境,在质量分数小于或等于5%时纳米粒子填充PI薄膜的介质损耗角正切值小于处理前薄膜的质损耗角正切值。

关键词: 高温超导, 电晕老化, PI薄膜, 液氮, 击穿场强

Abstract: High temperature superconducting amorphous alloy transformers, as low-temperature operating equipment, have energy-saving and consumption reducing functions. The low-temperature resistant polyimide (PI) film is selected as the main insulation material for high-temperature superconducting amorphous alloy transformers, the preparation process of PI film is improved , a corona aging system is built, and corona aging pretreatment on PI film is performed. A study is conducted on the dielectric properties of films pre-treated with corona aging, and it is found that the dielectric loss tangent of films pre-treated with corona aging in liquid nitrogen environment is lower than that in room temperature environment. When the mass fraction is less than or equal to 5%, the dielectric loss tangent of PI films filled with nanoparticles is smaller than that of the films before treatment.

Key words: high-temperature superconductivity, corona aging, PI film, liquid nitrogen, breakdown field strength

中图分类号:

TM851

张良, 张舒萌, 陈亦杰, 刘道生. 电晕老化对纳米复合PI薄膜介电性能的影响[J]. 湖南电力, 2024, 44(4): 47-51.

ZHANG Liang, ZHANG Shumeng, CHEN Yijie, LIU Daosheng. Effect of Corona Aging on Dielectric Properties of Nanocomposite PI Thin Films[J]. Hunan Electric Power, 2024, 44(4): 47-51.

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电晕老化对纳米复合PI薄膜介电性能的影响

Effect of Corona Aging on Dielectric Properties of Nanocomposite PI Thin Films

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