| Rogowski电流互感器的积分器技术 |
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| 引用本文： | 张明明,张艳,李红斌,刘延冰.Rogowski电流互感器的积分器技术[J].高电压技术,2004,30(9):13-16. |
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| 作者姓名： | 张明明 张艳 李红斌 刘延冰 |
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| 作者单位： | 华中科技大学电气与电子学院,武汉,430074 |
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| 摘 要： | 为还原出Rogowski线圈的输出信号中的电流信号 ,介绍了理想的和改进的模拟积分器以及 3种数字积分器的设计方案 ,其误差来源分析表明 :模拟积分器只适用于测量低频大电流或高频小电流 ,数字积分器适合测量低频小电流 ;采用ADE775 9芯片实现硬件积分性能最好 ,能满足准确度 0 2级的要求
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| 关 键 词： | Rogowski电流互感器 积分器 数字积分器 |
| 文章编号： | 1003-6520(2004)08-0013-04 |
| 修稿时间： | 2004年2月15日 |
Technology of Designing Integrator of Rogowski Current Transducer |
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| ZHANG Mingming,ZHANG Yan,LI Hongbin,LIU Yanbing.Technology of Designing Integrator of Rogowski Current Transducer[J].High Voltage Engineering,2004,30(9):13-16. |
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| Authors: | ZHANG Mingming ZHANG Yan LI Hongbin LIU Yanbing |
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| Affiliation: | (College of Electrical and Electronic Engineering Huazhong University of Science and Technology, Wuhan 430074, China) |
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| Abstract: | As the output of Rogowski coil is proportional to the time differential of the current, an integrator is needed to recover original current signal. The designing of ideal analog integrator and improved analog integrator is presented, the related error sources are analyzed, the analog integrator is just suitable for large current measurement at low frequency or small current measurement at high frequency. Then three different digital approaches of designing integrator are given; the error sources related to these approaches are also analyzed, it is proved that digital integrator is applicable for small current measurement at low frequency. As a result, adopting the digital integrator in ADE7759 chip has the best performance and can achieve 0.2 class accuracy. |
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| Keywords: | Rogowski current transducer integrator digital integrator |
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