| 基于扩展Prony算法的煤矿电网单相接地故障选线方法 |
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| 引用本文： | 王凯,焦新兵,王芝恩. 基于扩展Prony算法的煤矿电网单相接地故障选线方法[J]. 农业装备与车辆工程, 2019, 0(1): 105-107 |
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| 作者姓名： | 王凯 焦新兵 王芝恩 |
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| 作者单位： | 上海理工大学光电信息与计算机工程学院 |
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| 摘 要： | 煤矿中性点不接地电网发生单相接地故障后,其故障线路与非故障线路零序电流的幅值与相位存在显著差异,据此能可靠选出故障线路。传统上采用傅氏算法提取故障信号的工频分量,但该算法建立在故障信号为周期性不衰减的基础上,与实际的信号特征差距较大,影响选线的准确性。基于此,考虑利用扩展Prony算法提取各线路零序电流的工频幅值与相位,然后比较其值选出故障线路。MATLAB仿真分析表明,此种选线方法正确率高,适应性强。
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| 关 键 词： | 中性点不接地电网 单相接地故障 故障选线 扩展Prony算法 |
Single-phase Grounding Fault Line Selection Method of Coal Mine Power Grid Based on Extended Prony Algorithm |
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| Wang Kai,Jiao Xinbing,Wang Zhien. Single-phase Grounding Fault Line Selection Method of Coal Mine Power Grid Based on Extended Prony Algorithm[J]. Agricultural Equipment & Vehicle Engineering, 2019, 0(1): 105-107 |
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| Authors: | Wang Kai Jiao Xinbing Wang Zhien |
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| Affiliation: | (School of Optical-Electrical and Computer Engineering,Shanghai University of Science and Technology,Shanghai 200093,China) |
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| Abstract: | Wang Kai;Jiao Xinbing;Wang Zhien(School of Optical-Electrical and Computer Engineering,Shanghai University of Science and Technology,Shanghai 200093,China) |
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| Keywords: | isolated neutral system single phase-to-ground fault fault line selection extended Prony algorithm |
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