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Multiple lightning waveform parameter evaluation method for overvoltage analysis of ultra-high voltage alternating current transmission lines
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Zhengxi WANG1, 2, Tao LIANG1, 2, Tongwei GUO1, 2, Hong ZENG3, Tao CUI3
Electrical Engineering | 2025, 26(1) : 14 - 22
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Electrical Engineering | 2025, 26(1): 14-22
• Research & Development •
Multiple lightning waveform parameter evaluation method for overvoltage analysis of ultra-high voltage alternating current transmission lines
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Zhengxi WANG1, 2, Tao LIANG1, 2, Tongwei GUO1, 2, Hong ZENG3, Tao CUI3
Affiliations
  • 1 State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049
  • 2 School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049
  • 3 State Grid Sichuan Electric Power Research Institute, Chengdu 610041
Published: 2025-01-15
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Ultra-high voltage AC power system usually uses standard lightning current parameters to calculate external overvoltage, and lightning observation data show that more than 80% of the lightning process is multiple lightning strikes, which is significantly different from the standard recommended waveform. Under the background of frequent multiple lightning accidents in ultra-high voltage AC system, it is urgent to put forward a rigorous and scientific evaluation method of multiple lightning parameters. Therefore, this paper takes a 500kV AC ultra-high voltage transmission system as the object, and proposes a multiple lightning current waveform parameter evaluation method considering the transient characteristics of the line from the extreme lightning conditions and the actual fault recording. The analysis shows that the fault recording inversion method can characterize the real multiple lightning strikes. Extreme multiple lightning strikes method analyzes the lightning current parameters under harsh conditions from the lightning resistance level of the cable. The waveform parameter evaluation method proposed in this paper provides a technical scheme for overvoltage analysis of ultr-high voltage transmission system in lightning-prone areas.

multiple lightning strike  /  lightning current waveform  /  fault analysis  /  power system overvoltage  /  metal oxide arrester
Zhengxi WANG, Tao LIANG, Tongwei GUO, Hong ZENG, Tao CUI. Multiple lightning waveform parameter evaluation method for overvoltage analysis of ultra-high voltage alternating current transmission lines[J]. Electrical Engineering, 2025 , 26 (1) : 14 -22 .
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Article Info
  • Receive Date：2024-08-02
  • Online Date：2025-11-09
  • Published：2025-01-15
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History
  • Received：2024-08-02
  • Revised：2024-09-19
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Affiliations
    1 State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049
    2 School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049
    3 State Grid Sichuan Electric Power Research Institute, Chengdu 610041
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
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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