Review of Space/Interface Charge Characteristics and Its Suppression Methods for Oil-Paper Insulation Composite Dielectrics

HAO Jian; LIAO Ruijin; George Chen; MIN Daomin; ZHANG Ling; ZOU Runhao

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Review of Space/Interface Charge Characteristics and Its Suppression Methods for Oil-Paper Insulation Composite Dielectrics

更新时间：2025-12-08

- Review of Space/Interface Charge Characteristics and Its Suppression Methods for Oil-Paper Insulation Composite Dielectrics
- Vol. 45, Issue 10, Pages: 3192-3206(2019)
- 作者机构：
  
  1. 重庆大学输配电装备及系统安全与新技术国家重点实验室
  2. University of Southampton
  3. 西安交通大学电力设备电气绝缘国家重点实验室
  4. 清华大学电机系电力系统及发电设备控制和仿真国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 October 2019，
  
  Published：2019
- 稿件说明：
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HAO Jian, LIAO Ruijin, George Chen, et al. Review of Space/Interface Charge Characteristics and Its Suppression Methods for Oil-Paper Insulation Composite Dielectrics[J]. 2019, 45(10): 3192-3206.
DOI：

HAO Jian, LIAO Ruijin, George Chen, et al. Review of Space/Interface Charge Characteristics and Its Suppression Methods for Oil-Paper Insulation Composite Dielectrics[J]. 2019, 45(10): 3192-3206. DOI：

摘要

聚合物电介质的空间/界面电荷问题一直是国内外绝缘领域研究的前沿和热点。换流变压器是超/特高压直流输电工程中的关键设备

其内部油纸绝缘系统空间/界面电荷的产生、输运、积聚等过程会直接导致局部电场分布的畸变

易诱发绝缘介质的击穿、沿面闪络、老化加速等

是影响换流变压器安全稳定运行的重要因素。文中总结了国内外近20年来油纸绝缘电介质空间/界面电荷方面的研究成果

首先介绍了油纸绝缘复合电介质的空间/界面电荷测量和仿真研究新进展;然后分析了不同电压类型（直流、交流、交直流复合、极性反转）、场强大小、温度梯度、油纸本体状态等对油纸绝缘电介质空间/界面电荷演化的影响规律;最后分析了油纸绝缘介质空间/界面电荷的抑制方法。国内外在油纸绝缘电介质空间/界面电荷研究方面取得的大量有价值的研究成果

为换流变压器绝缘结构设计、绝缘性能提升提供了理论支撑。未来仍需在大尺寸油纸绝缘结构空间/界面电荷的测量及仿真方法、空间/界面电荷与材料绝缘性能的关联机制

以及优异绝缘性能先进电工绝缘材料等方面进一步开展研究。

Abstract

The space/interface charge problem in polymer dielectric has been the hot research field in domestic and abroad. Converter transformer is the most important equipment in HVDC transmission project. The accumulation of space/interface charges in oil-paper insulation system will directly lead to the distortion of local electric field distribution which can cause the breakdown

surface flashover

accelerated aging of insulating medium and so on

and is an important factor that impairs the safe and stable operation of converter transformers. We summarized and analyzed achievements in the research of space/interface charge of oil-paper insulating dielectrics in recent 20 years. First

we presented the latest progress in the space/interface charge measurement and simulation for oil-paper insulating composite dielectrics. Then

we discussed the influences of different voltage types（DC

DC+AC

polarity reversal）

field strength

temperature gradient and oil-paper bulk state on the space/interface charge evolution

and analyzed the relationship between space/interface charge dynamic behavior and the insulation performance. Finally

we put forward the suppression methods for space/interface charge of oil-paper insulation. A great deal of valuable achievements in research on space/interface charge of oil-paper insulation canprovide a theoretical support for the design of insulation structure and the improvement of insulation performance of equipment. Moreover

it is needed to further research the measurement and simulation of space/interface charges of large-scale oil-paper insulation structures

the micro-correlation mechanism between space/interface charges and insulation properties of materials

and advanced electrical insulating materials with excellent insulation properties.

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