| 基于Duffing混沌振子的电缆绝缘劣化监测方法研究 |
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| 引用本文： | 基于Duffing混沌振子的电缆绝缘劣化监测方法研究.基于Duffing混沌振子的电缆绝缘劣化监测方法研究[J].山东科学,2015,28(3):104-109. |
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| 作者姓名： | 基于Duffing混沌振子的电缆绝缘劣化监测方法研究 |
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| 作者单位： | 1.陕西宝鸡北马坊煤业有限公司，陕西 宝鸡 721500；
2.中国矿业大学信息与电气工程学院，江苏 徐州 221116 |
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| 摘 要： | 交联聚乙烯（XLPE）电力电缆的绝缘性能与水树枝的形成发展密切相关。为实现对XLPE电缆的绝缘状态监测，本文选择交流电压叠加法，利用Duffing混沌振子模型对噪声抑制而对特定频率信号敏感的特性，建立周期策动力为1 Hz的Duffing混沌振子系统，实现了对1 Hz特征电流的精确测量。仿真结果表明，该系统检测精度能达到10 nA。
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| 关 键 词： | 在线监测 交流叠加法 Duffing混沌振子系统 交联聚乙烯电力电缆 |
| 收稿时间： | 2014-10-11 |
Duffing chaotic oscillator based cable insulation degradation monitoring method |
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| HE Yong nan,LI Da hai,REN Hong xiang.Duffing chaotic oscillator based cable insulation degradation monitoring method[J].Shandong Science,2015,28(3):104-109. |
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| Authors: | HE Yong nan LI Da hai REN Hong xiang |
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| Institution: | 1.Shaanxi Baoji Beimafang Coal Co. Ltd., Baoji 721500, China;
2.School of Information and Electrical Engineering,China University of Mining and Technology, Xuzhou 221008, China |
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| Abstract: | Insulation performance of XLPE power cable is closely related to the formation and development of its water trees. We employ AC voltage superimposition approach to monitor its insulation status. We also establish a Duffing chaotic oscillator with 1 Hz periodic driving force to accurately measure 1 Hz characteristic current by means of its characteristic that it is sensitive to the signal whose frequency is identical with the periodic signal, but suppressive to noise.Simulation results show that its detection precision is 10 nA. |
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| Keywords: | XLPE power cable on line monitoring AC superposition Duffing chaotic oscillator |
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