Study of Positive Corona Discharge of Needle Plate Electrodes in Airflow

IF 5.7 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

High Voltage Pub Date : 2026-03-10 DOI:10.1049/hve2.70176

Lei Lan, Zhengxian Du, Qiang Wu, Yeqiang Deng, Yu Wang, Zeliang Wu, Xiankang Wang

引用次数: 0

Abstract

For high-speed moving objects such as aircraft and wind turbine blades, discharge occurs under strong airflow. Research on lightning attachment characteristics has been extensive, whereas the role of corona discharge in pre-breakdown streamer development has received less attention. This paper presents wind tunnel experiments on positive corona discharge in a needle-to-plate configuration under DC voltage, with airflow ranging from 0 to 50 m/s. The results show that airflow induces significant deviations in the streamer channel, with higher airflow velocities causing the corona to tilt further upwind. Additionally, airflow affects both the discharge intensity and the dispersion of space charge. This study reveals the displacement characteristics of streamer-corona discharge and discusses the influence mechanism of airflow on space charge distribution.

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针板电极在气流中的正电晕放电研究

对于高速运动的物体，如飞机和风力涡轮机叶片，在强气流下会发生放电。对雷电附着特性的研究已经非常广泛，而电晕放电在预击穿流线发展中的作用却很少受到关注。本文介绍了直流电压下，在0 ~ 50 m/s气流范围内，针-板结构下的正电晕放电风洞实验。结果表明，气流在流道中引起了明显的偏差，较高的气流速度使日冕进一步向上风倾斜。此外，气流对放电强度和空间电荷的分散都有影响。研究揭示了流线-电晕放电的位移特性，探讨了气流对空间电荷分布的影响机理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Voltage Energy-Energy Engineering and Power Technology

CiteScore

9.60

自引率

27.30%

发文量

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