| Prony算法在电网故障分析中的应用 |
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| 引用本文： | 杨茂亭,陈平,赵大明,曹运刚.Prony算法在电网故障分析中的应用[J].山东电力高等专科学校学报,2014(1):20-22,35. |
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| 作者姓名： | 杨茂亭 陈平 赵大明 曹运刚 |
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| 作者单位： | 山东理工大学电气与电子工程学院,山东淄博255091 |
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| 摘 要： | 傅立叶算法能够在电力系统发生故障时较为准确地得到工频分量,但该算法存在频谱泄露现象,从而对故障信号不能够精确地分析.通过对Prony算法进行理论分析,搭建PSACD仿真模型并提取信号中工频分量,且与傅里叶算法进行对比可知,Prony算法可以精确检测到故障信号的相位、振幅、频率和衰减因子,相对于传统的信号分析方法如傅立叶算法,Prony算法在快速故障分析中具较好的应用前景.
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| 关 键 词： | Prony算法 电网 傅立叶算法 故障分析 |
The Application of Prony Algorithm in the Fault Analysis of Power Grid |
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| Yang Maoting,Chen Ping,Zhao Daming,Cao Yungang.The Application of Prony Algorithm in the Fault Analysis of Power Grid[J].Journal of Shandong College of Electric Power,2014(1):20-22,35. |
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| Authors: | Yang Maoting Chen Ping Zhao Daming Cao Yungang |
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| Affiliation: | School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255091, China |
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| Abstract: | Fourier algorithm can get more accurate frequency component when power system fault occurs. But Fourier transform could not be used to accurately analyze fault signal due to its leakage effects. In this paper, Prony algorithm is analyzed in theory,and an integral power system is built using simulation tool PSCAD,from which extracting power frequency,then compared with Fourier algorithm. The results show that Prony algorithm could accurately detect phases, amplitude, frequencies and decay factor of harmonic. Compared with traditional signal analysis methods such as Fourier algorithm,Prony algorithm has good prospects in rapid fault analysis. |
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| Keywords: | Prony algorithm Power Grid Fourier algorithm fault analysis |
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