| 姜媛媛,刘朋,王康,程浩.基于变分模态分解和排列熵的输电线路故障诊断[J].电子测量与仪器学报,2017,31(7):1025-1030 |
| 基于变分模态分解和排列熵的输电线路故障诊断 |
| Fault diagnosis of transmission lines based on variational mode decomposition and permutation entropy |
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| DOI：10.13382/j.jemi.2017.07.006 |
| 中文关键词: 输电线路 故障诊断 变分模态分解 排列熵 接地短路 |
| 英文关键词:transmission line fault diagnosis variational mode decomposition permutation entropy grounding short circuit |
| 基金项目:国家自然科学基金(51604011,61401215)、安徽省高校优秀青年人才支持计划重点项目(gxyqZD2016082)、安徽省自然科学基金(1708085QF135)资助项目 |
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| Author | Institution |
| Jiang Yuanyuan | 1. College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China;
2.College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
| Liu Peng | College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China |
| Wang Kang | College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China |
| Cheng Hao | College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China |
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| 中文摘要: |
| 针对现有电力系统输电线路故障信号分析方法中，故障信号特征遗失并难以反映故障信号本质特征等问题，提出基于变分模态分解与排列熵（VMD PE）的输电线路故障诊断方法。以输电线路单相接地短路故障为例，选取IEEE 14节点标准测试系统，以单相接地短路故障时的电流作为故障信号，首先对各相故障信号进行VMD分解，然后对分解后的故障信号作二次PE分析，基于各相故障信号的最终总PE值识别输电线路故障，并与小波变换 PE算法进行对比。实验结果表明，所提VMD PE方法更能有效地诊断出输电线路的故障所在相，可准确可靠的用于输电线路的故障诊断。 |
| 英文摘要: |
| A new fault diagnosis method based on the variational mode decomposition and permutation entropy (VMD PE) is proposed to deal with the problem of the loss of signal feature and not reflecting the essential feature of the signal with the fault signal analysis methods of the transmission line of power system. Taking the transmission line of single phase grounding fault as an example, the IEEE 14 nodes standard test system is selected. Taking the single phase grounding fault current as the fault signal, each phase fault signal is firstly decomposed with VMD. And then, the decomposed fault signal is analyzed with PE. At last, according the total PE value of each phase fault signal, the transmission lines fault is identified, and the comparison with the wavelet transform and the PE is carried out. The results show that the proposed algorithm can effectively diagnose the fault of transmission line and be accurate and reliable for transmission line fault diagnosis. |
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