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Research on Wind Power Transmission Line Protection Based on Fault Traveling Wave Similarity
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Chen CHEN1, Pingxian DONG1, Xiaofan SONG1, Fang GUO1, Huanruo QI1, Xiaotong DU2
Electric Drive | 2024, 54(6) : 89 - 96
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Electric Drive | 2024, 54(6): 89-96
Research on Wind Power Transmission Line Protection Based on Fault Traveling Wave Similarity
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Chen CHEN1, Pingxian DONG1, Xiaofan SONG1, Fang GUO1, Huanruo QI1, Xiaotong DU2
Affiliations
  • 1 Henan Power Grid Economic Research Institute，Zhengzhou 450000，Henan，China
  • 2 School of Electric Engineering，Beiijng Jiaotong University，Beijing 100044，China
Published: 2024-06-20 doi: 10.19457/j.1001-2095.dqcd24747
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After the distributed wind farm stations are integrated into the distribution network，due to the characteristics of wind farm short-circuit current amplitude control and frequency offset，the traditional three-stage current protection of distribution network is difficult to accurately identify the fault on the wind power transmission line. Based on the similarity of fault current traveling waves，a fast protection method for wind power transmission lines in distribution networks was proposed to ensure fast and safe operation of distribution networks. First，the differences in the supply fault currents at the two ends of the transmission line were analyzed. A similarity pilot protection approach was proposed by exploiting the difference in the current travelling waveforms during the initial phase of the fault. The wavelet mode maximum was used for the start of protection. With the improved longest common subsequence algorithm，the waveform similarity at both ends was measured for fault discrimination.Finally，the simulation results demonstrate the excellent speed and reliability of the proposed method.

fault traveling wave  /  waveform similarity  /  output transmission line  /  doubly fed induction generator(DFIG)
Chen CHEN, Pingxian DONG, Xiaofan SONG, Fang GUO, Huanruo QI, Xiaotong DU. Research on Wind Power Transmission Line Protection Based on Fault Traveling Wave Similarity[J]. Electric Drive, 2024 , 54 (6) : 89 -96 . DOI: 10.19457/j.1001-2095.dqcd24747
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Year 2024 volume 54 Issue 6
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Article Info
doi: 10.19457/j.1001-2095.dqcd24747
  • Receive Date：2022-11-01
  • Online Date：2025-11-26
  • Published：2024-06-20
Article Data
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  • Received：2022-11-01
  • Revised：2022-12-07
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    1 Henan Power Grid Economic Research Institute，Zhengzhou 450000，Henan，China
    2 School of Electric Engineering，Beiijng Jiaotong University，Beijing 100044，China
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小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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