| 分布电容对Rogowski线圈动态特性影响研究 |
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| 引用本文： | 李维波,毛承雄,陆继明,余翔. 分布电容对Rogowski线圈动态特性影响研究[J]. 电工技术学报, 2004, 19(6): 12-17 |
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| 作者姓名： | 李维波 毛承雄 陆继明 余翔 |
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| 作者单位： | 华中科技大学电气与电子工程学院,武汉,430074;华中科技大学电气与电子工程学院,武汉,430074;华中科技大学电气与电子工程学院,武汉,430074;华中科技大学电气与电子工程学院,武汉,430074 |
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| 摘 要： | 在简单分析测量脉冲电流的微分式Rogowski线圈的工作原理基础上,详细论述了Rogowski线圈分布电容的计算方法、测量原理以及分布电容对线圈动态特性(即时域和频域)影响机理.为确保传感器具有良好的动态特性,必须串接最佳阻尼电阻,给出了最佳阻尼电阻的计算方法.仿真和现场测试结果表明,本文提出的方法,对于设计具有合理电磁参数Rogowski线圈,确保传感器具有较好的动态特性,起到理论指导作用.
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| 关 键 词： | Rogowski线圈 分布电容 动态特性 最佳阻尼电阻 |
| 修稿时间： | 2003-08-15 |
Study of the Influence of the Distributed Capacitance on Dynamic Property of Rogowski Coil |
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| Li Weibo Mao Chengxiong Lu Jiming Yu Xiang. Study of the Influence of the Distributed Capacitance on Dynamic Property of Rogowski Coil[J]. Transactions of China Electrotechnical Society, 2004, 19(6): 12-17 |
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| Authors: | Li Weibo Mao Chengxiong Lu Jiming Yu Xiang |
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| Affiliation: | Huazhong University of Science and Technology Wuhan 430074 China |
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| Abstract: | The principle of the differential mode Rogowski coil used to measure pulsed current is summarized. The calculation method and measurement principle of the distributed capacitance of the Rogowski coil are respectively analyzed in detail. Influences of the distributed capacitance on dynamic property of the Rogowski coil are also presented. In order to ensure the good dynamic performance of the Rogowski coil (e.g. time- and frequency-domain characteristics), the optimal damping resistor terminated with the coil is crucial. Method of optimizing damping resistance of the coil is proposed as well. Simulation and experimental results confirm the validity of the proposed method,which can give some instructions to design a proper Rogowski coil with good high-frequency performance. |
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| Keywords: | Rogowski coil distributed capacitance dynamic property optimal damping resistor |
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