电工技术学报  2022, Vol. 37 Issue (19): 4978-4988    DOI: 10.19595/j.cnki.1000-6753.tces.212131
高电压与绝缘 |
高压脉冲放电破岩电弧阻抗特性分析
黄仕杰1, 刘毅1,2, 林福昌1,2, 周鹏3, 马宁3
1.强电磁工程与新技术国家重点实验室(华中科技大学电气与电子工程学院) 武汉 430074;
2.脉冲功率技术教育部重点实验室(华中科技大学) 武汉 430074;
3.北京三一智造科技有限公司 北京 102202
Analysis of Arc Impedance Characteristics in High-Voltage Electric Pulse Discharge Rock Destruction
Huang Shijie1, Liu Yi1,2, Lin Fuchang1,2, Zhou Peng3, Ma Ning3
1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan 430074 China;
2. Key Laboratory of Pulsed Power Technology Ministry of Education Huazhong University of Science and Technology Wuhan 430074 China;
3. Beijing Sanyi Zhizao Technology Co mpany Limited Beijing 102202 China
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摘要 高压脉冲放电是一种新型破岩技术,其电弧通道阻抗与外回路阻抗匹配关系决定通道能量的注入速率和大小,进而影响破碎效率。该文建立了高压脉冲放电破岩综合试验平台,测量了电弧通道的电压、电流,获取了电弧通道发展图像,通过剥离电弧电压中的电感分量获得了电弧阻抗特性。考虑温度、通道膨胀及辐射的影响,建立岩石中电弧通道的阻抗模型,通过迭代求解确定了模型参数及变量初值,模型计算结果能够合理表征岩层中电弧阻抗的时变特性。由于岩石中电弧通道膨胀更加困难,对于幅值为11.12kA、周期为5.776μs 的脉冲电流,其阻抗的典型值约为35.6mΩ/mm。
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黄仕杰
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周鹏
马宁
关键词 脉冲放电岩石破碎电弧通道阻抗模型时变电阻    
Abstract:High-voltage electric pulse discharge is a new method of rock destruction technology. The rate and magnitude of the energy injected into the arc channel are determined by the relationship between the impedance of arc channel in solid and the impedance of the outer loop, which in turn affects the destruction efficiency. A comprehensive test platform for high-voltage electric pulse discharge rock destruction was established, the voltage and current of the arc channel were measured, and the development images of the arc channel were obtained. The arc impedance characteristics were obtained by stripping the inductance component in the arc voltage. Considering the effects of temperature, channel expansion and electromagnetic radiation, the impedance model of the arc channel in the rock was established. The parameters and initial values of the model were determined by iterative calculation. The model calculation results can reasonably characterize the time-varying characteristics of arc impedance in the rock. As the arc channel expansion in the rock was more difficult, for a pulse current with an amplitude of 11.12kA and a period of 5.776μs, the typical value of the arc channel impedance was about 35.6mΩ/mm.
Key wordsElectric pulse discharge    rock destruction    arc channel    impedance model    time-varying resistance   
收稿日期: 2021-12-29     
PACS: TM85  
基金资助:国家自然科学基金资助项目(52177144)
通讯作者: 刘 毅 男,1985年生,博士,副教授,博士生导师,研究方向为脉冲功率技术、高电压测试技术。E-mail:yiliu@hust.edu.cn   
作者简介: 黄仕杰 男,1996年生,博士研究生,研究方向为脉冲功率技术。E-mail:sjhuang@hust.edu.cn
引用本文:   
黄仕杰, 刘毅, 林福昌, 周鹏, 马宁. 高压脉冲放电破岩电弧阻抗特性分析[J]. 电工技术学报, 2022, 37(19): 4978-4988. Huang Shijie, Liu Yi, Lin Fuchang, Zhou Peng, Ma Ning. Analysis of Arc Impedance Characteristics in High-Voltage Electric Pulse Discharge Rock Destruction. Transactions of China Electrotechnical Society, 2022, 37(19): 4978-4988.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.212131          https://dgjsxb.ces-transaction.com/CN/Y2022/V37/I19/4978