基于同步波形的配电网故障诊断技术综述
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TM315

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国家重点研发计划资助项目“基于微型PMU的配电网故障诊断及精确定位技术”(2017YFB0902802)


Distribution network fault diagnosis technology based on synchronous waveforms
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    摘要:

    随着分布式电源、柔性负荷等大规模接入,配电网故障诊断面临新的技术挑战,针对录波器故障波形的分析可以提供新的思路。综述了基于波形的配电网故障诊断方法,并根据技术路线的特点,将其分为基于波形相似性直接匹配和基于波形特征辨识的间接方法,对各自的主流算法进行了分析、比较。最终在归纳各算法的优势与不足及不同应用场景下适用算法的基础上,给出对未来发展趋势的展望。新能源发展及量测体系不断完善的背景下,基于波形特征辨识的间接诊断方法应是今后的重点研究方向,积极探索其与基于多节点量测信息的集中式故障诊断技术的融合使用,提高故障检测和定位的准确性,为智能配电网故障诊断技术的深入研究提供有益参考。

    Abstract:

    With the large-scale intergration of the distributed generators and the flexible load, the dynamic behavior and fault characteristics of the distribution network are more complex and variable. The fault diagnosis in distribution networks faces new technical challenges. The waveforms-based fault diagnosis method is reviewed, which can be divided into direct matching method based on waveform similarity and indirect method based on waveform feature identification. The popular algorithms are analyzed and compared with each other. Then the advantages and disadvantages of each kind of algorithm are analyzed. Diagnosis methods for different application scenarios are summarized. Then, the future development and technical route of synchronous waveforms-based diagnosis methods are analyzed. The advantages and disadvantages of the algorithm are analyzed, and the diagnostic methods under different application scenarios are summarized. Finally, the development trend and technical roadmap of the fault diagnosis based on synchronous waveform are discussed. This review provides a useful reference for the futher study on smart distribution network fault diagnosis technology.

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徐铭铭,冯光,张林林,王鹏,石访.基于同步波形的配电网故障诊断技术综述[J].电力工程技术,2019,38(5):138-146

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历史
  • 收稿日期:2019-03-13
  • 最后修改日期:2019-04-21
  • 录用日期:2019-06-09
  • 在线发布日期: 2019-09-30
  • 出版日期: 2019-09-28