| 引用本文: | 马云凤,宗 伟,刘连光,于永富,马骋原.高铁电气系统中的GMD干扰监测及信号消噪方法[J].电力自动化设备,2016,36(3): |
| MA Yunfeng,ZONG Wei,LIU Lianguang,YU Yongfu,MA Chengyuan.GMD interference monitoring and denoising for electric system of high-speed railway[J].Electric Power Automation Equipment,2016,36(3): |
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| 摘要: |
| 借鉴公共电网地磁扰动（GMD）干扰效应的监测技术，结合我国高铁牵引供电系统的结构与接线，研究了GMD干扰高铁电气系统的物理过程与模式，设计了高铁电气系统的GMD干扰监测装置，提出了GMD产生的地磁感应电流（GIC）变化的监测方法和基于小波变换技术的干扰噪声的处理方法。仿真计算结果表明，利用小波变换技术消除采集信号中的白噪声是可行的。 |
| 关键词: 地磁扰动 地磁感应电流 高铁 监测 地磁暴 小波变换 白噪声 消噪 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（41374189）；国家高技术研究发展计划（863计划）项目（2012AA121005） |
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| GMD interference monitoring and denoising for electric system of high-speed railway |
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MA Yunfeng, ZONG Wei, LIU Lianguang, YU Yongfu, MA Chengyuan
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State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources，
North China Electric Power University，Beijing 102206，China
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| Abstract: |
| The physical process and modes of GMD（GeoMagnetic Disturbance） interference in the tractive power-supply system of domestic high-speed railway are studied according to its structure and wiring patterns and a GMD interference monitoring device is designed based on the monitoring technology of GMD interference in the public electric grid. A GIC（Geomagnetically Induced Current） monitoring method and a wavelet-based denoising method are proposed. Simulative calculation shows the feasibility of white noise elimination by wavelet transform. |
| Key words: geomagnetic disturbance geomagnetically induced currents high-speed railway monitoring geomagnetic storm wavelet transforms white noise denoising |
