| 基于DSP的铁路MOA在线监测研究 |
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| 引用本文： | 李敏,刘明光.基于DSP的铁路MOA在线监测研究[J].铁路计算机应用,2006,15(8):1-4. |
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| 作者姓名： | 李敏 刘明光 |
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| 作者单位： | 北京交通大学,电气工程学院,北京,100044 |
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| 摘 要： | 对铁路电网中MOA在线监测进行研究,在传统基波测量法的基础上,硬件上加入频率自动跟踪电路,实时跟踪电网频率,解决FFT的频谱泄漏问题,软件上小波分析解决现场干扰和去除噪声问题,FFT可方便地得到各次谐波,从而计算出测量所需的阻性泄漏电流.
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| 关 键 词： | 基波测量法 频率自动跟踪 小波分析 阻性泄漏电流 |
| 文章编号： | 1005-8451(2006)08-0001-04 |
| 收稿时间： | 2006-03-30 |
| 修稿时间： | 2006年3月30日 |
Study on MOA online detection technique in power supply of railway based DSP |
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| LI Min,LIU Ming-guang.Study on MOA online detection technique in power supply of railway based DSP[J].Railway Computer Application,2006,15(8):1-4. |
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| Authors: | LI Min LIU Ming-guang |
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| Institution: | School of Electrical Engineering ofBeijing Jiaotong University, Beijing 100044, China |
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| Abstract: | It was introduced the MOA Online detection technique in power supply of railway, on the traditional first- harmonic measurement method, adding frequency automatic follow circuit to follow electricity frequency, which could solve spectrum leakage of FFT, wavelet analysis could eliminate white noise and location interference, with FFT we could get every harmonic conveniently, then calculated the resistance leakage current. |
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| Keywords: | first-harmonic measurement method automatic follow frequency wavelet analysis resistance leakage current |
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