[1]金作林,陈小月,文习山,等.海上风电场220 kV海底长电缆送出线工频及操作过电压研究[J].电瓷避雷器,2020,(01):47-53.[doi:10.16188/j.isa.1003-8337.2020.01.008]
 JIN Zuolin,CHEN Xiaoyue,WEN Xishan,et al.Study on Power Frequency and Operating Overvoltage of 220 kV Long Submarine Cable in Offshore Wind Farm[J].,2020,(01):47-53.[doi:10.16188/j.isa.1003-8337.2020.01.008]
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海上风电场220 kV海底长电缆送出线工频及操作过电压研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年01期
页码:
47-53
栏目:
避雷器
出版日期:
2020-02-20

文章信息/Info

Title:
Study on Power Frequency and Operating Overvoltage of 220 kV Long Submarine Cable in Offshore Wind Farm
作者:
金作林1 陈小月1 文习山1 郭卫2 任志刚2
(1.武汉大学电气工程学院,武汉 430074; 2.国网北京电力科学研究院,北京 100000)
Author(s):
JIN Zuolin1 CHEN Xiaoyue1 WEN Xishan1 GUO Wei2 REN Zhigang2
(1.School of Electrical Engineering, Wuhan University, Wuhan 430074, China; 2.State Grid Beijing Electric Power Research Institute, Beijing 100000, China)
关键词:
海底长电缆 工频过电压 操作过电压
Keywords:
long submarine cable frequency overvoltage operation overvoltage
DOI:
10.16188/j.isa.1003-8337.2020.01.008
摘要:
过电压是威胁电缆线路安全的重要因素。由于海底长电缆线路的高电容特性,可能产生较为严重的过电压。结合工程实际,基于ATP-EMTP对两种典型的海上风电场及其输电的220 kV 海底长电缆线路进行建模,并对海缆参数进行修正,对不同系统容量、不同长度、不同电缆类型下的海底电缆线路的工频过电压及2%统计合闸过电压进行仿真计算,同时计算了断路器发生一次重燃的分闸过电压。结果发现,在仅配置避雷器的情况下就能将操作过电压抑制在安全范围内,决定海底长电缆线路绝缘水平的主要因素是工频过电压。
Abstract:
Overvoltage is an important factor that threatens the safety of cable lines. Due to the high capa-citance characteristics of long submarine cable lines, serious overvoltage may be generated. In this paper, based on engineering practice, ATP-EMTP is used to model the 220 kV submarine cable lines of two typical offshore wind farms and their transmission, and the parameters of the submarine cables are revised. The results are for different system capacities, different lengths, and different cable types. Over-voltage and 2% statistical closing over-voltage of the submarine cable line were simulated and the over-voltage of the re-ignition of the circuit breaker was calculated. As a result, it was found that the operation overvoltage can be suppressed within the safety range only when the arrester is configured. The main factor determining the insulation level of the long cable line in the seabed is the power frequency overvoltage.

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备注/Memo

备注/Memo:
收稿日期:2018-05-29作者简介:金作林(1993—),男,硕士,研究方向为电力系统过电压。基金项目:国家电网公司科技项目资助(编号:52022317001F)。
更新日期/Last Update: 2020-02-20