| 基于FFT算法的牵引供电系统智能电量变送器 |
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| 引用本文： | 赵闻蕾,叶家金.基于FFT算法的牵引供电系统智能电量变送器[J].大连铁道学院学报,2001(3). |
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| 作者姓名： | 赵闻蕾 叶家金 |
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| 作者单位： | 大连铁道学院电气信息分院!辽宁大连 116028，大连铁道学院电气信息分院!辽宁大连 116028 |
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| 摘 要： | 针对牵引供电系统的特点提出了一种新型的智能型多功能电量变送器．它突破了常规的基于离散积分形式的理论基础，采用了数字信号处理技术，应用富氏变换原理及ＦＦＴ快速算法进行电网参数测量及谐波分析，采用高性能微处理器８０Ｃ１９６及倍频锁相技术，有效地实现了交流同步采样．
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| 关 键 词： | 智能型变送器 交流同步采样 谐波 倍频锁相 FFT |
A Study of Intelligent Electric Transducer Based on FFT in Traction Power System |
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| ZHAO Wen-lei,YE Jia-jin.A Study of Intelligent Electric Transducer Based on FFT in Traction Power System[J].Journal of Dalian Railway Institute,2001(3). |
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| Authors: | ZHAO Wen-lei YE Jia-jin |
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| Abstract: | The harmonic interference and the measurement error of traditional electric transducer were analysed in the electrical power system It introduces a new intelligent multifunction electric transducer(IMET),which doesn't base on the discrete integrating principle but on the digital signal process technique. Parameters of elec- tric network are measured with Fourier Transform Principle. Harmonics are analysed with FFT. It achieves A c. synchronous sampling effectively |
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| Keywords: | intelligent transducer A C synchronous sampling harmonic wave double frequency digital phase-lock fast fourier transform |
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