50年地面闪络:2。材料改性、结构优化和特性增强

IF 4.4 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
High Voltage Pub Date : 2024-11-03 DOI:10.1049/hve2.12489
Zhen Li, Ji Liu, Yoshimichi Ohki, George Chen, Shengtao Li
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引用次数: 0

摘要

表面闪络是一种气固界面绝缘故障,严重危及先进电子、电气和航天器应用的安全运行。尽管许多旨在提高表面闪络性能的材料改性和结构优化技术得到了广泛应用,但现有技术的影响机制尚未得到系统的讨论和总结。本文旨在通过建立“微观结构-介观电荷输运-宏观绝缘失效”的关系,介绍各种材料改性技术,揭示其对闪络性能的影响机理。阐明了化学结构对表面陷阱参数和表面电荷输运对闪络性能的影响。本文对控制电场分布的结构优化技术进行了分类和介绍。所有确定的技术都强调,实现均匀的切向电场和减小法向电场可以有效地提高闪络性能。最后,本文提出了包括数学、化学、评价和制造技术在内的建议。本文系统地总结了当前的技术,它们的影响机制,以及在改善表面绝缘性能方面的相关优缺点,预计将成为闪络和未来介电理论的关键组成部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Surface flashover in 50 years: II. Material modification, structure optimisation, and characteristics enhancement

Surface flashover in 50 years: II. Material modification, structure optimisation, and characteristics enhancement

Surface flashover is a gas–solid interface insulation failure that significantly jeopardises the secure operation of advanced electronic, electrical, and spacecraft applications. Despite the widespread application of numerous material modification and structure optimisation technologies aimed at enhancing surface flashover performance, the influence mechanisms of the present technologies have yet to be systematically discussed and summarised. This review aims to introduce various material modification technologies while demonstrating their influence mechanisms on flashover performances by establishing relationships among ‘microscopic structure-mesoscopic charge transport-macroscopic insulation failure’. Moreover, it elucidates the effects of chemical structure on surface trap parameters and surface charge transport concerning flashover performance. The review categorises and presents structure optimisation technologies that govern electric field distribution. All identified technologies highlight that achieving a uniform tangential electric field and reducing the normal electric field can effectively enhance flashover performance. Finally, this review proposes recommendations encompassing mathematical, chemical, evaluation, and manufacturing technologies. This systematic summary of current technologies, their influence mechanisms, and associated advantages and disadvantages in improving surface insulation performance is anticipated to be a pivotal component in flashover and future dielectric theory.

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来源期刊
High Voltage
High Voltage Energy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍: High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include: Electrical Insulation ● Outdoor, indoor, solid, liquid and gas insulation ● Transient voltages and overvoltage protection ● Nano-dielectrics and new insulation materials ● Condition monitoring and maintenance Discharge and plasmas, pulsed power ● Electrical discharge, plasma generation and applications ● Interactions of plasma with surfaces ● Pulsed power science and technology High-field effects ● Computation, measurements of Intensive Electromagnetic Field ● Electromagnetic compatibility ● Biomedical effects ● Environmental effects and protection High Voltage Engineering ● Design problems, testing and measuring techniques ● Equipment development and asset management ● Smart Grid, live line working ● AC/DC power electronics ● UHV power transmission Special Issues. Call for papers: Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf
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