±1 100 kV特高压直流输电线路防雷保护

doi:10.19595/j.cnki.1000-6753.tces.171395

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Abstract

Reliable lightning protection of ±1 100 kV UHVDC transmission line is crucial for the safe operation of ±1 100 kV UHVDC project. Based on ±1 100 kV UHVDC transmission line from Zhundong to Huadong, which is under construction, to determine the reference value of flashover rate for this project, the lightning trip out rate of the transmission lines already under operation was studied based on statistics from 6 provinces along the route of this project. According to the given computation conditions of this transmission line, the flashover rates at different shielding angle were estimated. To prove the rationality of the computation method used in ±1 100 kV UHVDC transmission line, the lightning performance obtained from the ±1 100 kV UHVDC transmission line was compared with that of the ±800 kV UHVDC transmission line. Researched results showed that the striking flashover rate of this project will satisfy the requirement of the reference value, and the flashover time will not be over 3 times per year when the shielding angle used in the transmission line is not over -10°. The results from this study have been used in the engineering design of ±1 100 kV UHVDC transmission line from Zhundong to Huadong, and will provide basis for drafting lightning protection standards for ±1 100 kV UHVDC transmission lines.

Key words： ±1 100 kV UHVDC transmission line lightning protection

Received: 10 October 2017 Published: 15 October 2018

PACS:	TM722
	TM863

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	Zhang Liuchun

Cite this article:

Zhang Liuchun. Lightning Protection of ±1 100 kV UHVDC Transmission Line[J]. Transactions of China Electrotechnical Society, 2018, 33(19): 4611-4617.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.171395 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I19/4611

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