青海南部电网短路电流限制措施

傅旭; 王笑飞; 李富春; 张鹏宇

doi:10.16513/j.2096-2185.DE.1901120

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分布式能源 ›› 2020, Vol. 5 ›› Issue (1) : 65-70. DOI: 10.16513/j.2096-2185.DE.1901120

应用技术

青海南部电网短路电流限制措施

傅旭 ¹ ,
王笑飞 ¹ ,
李富春 ¹ ,
张鹏宇 ²

作者信息 +

Limiting Short-Circuit Current of Southern Qinghai Power Grid

Author information +

文章历史 +

摘要

随着青海南部地区特高压直流的投运，该特高压直流接入站和换流站的短路电流超标已成为电力系统安全运行面临的重大问题。分析了青海南部地区短路电流的发展趋势和750 kV母线短路电流超标的原因，提出了多种限制青海南部地区短路电流的措施。研究结果表明：(1)仅加装串抗不能解决塔拉750 kV母线短路电流超标问题，且塔拉均未留有装设串抗的位置；(2)塔拉750 kV出线出串运行可在一定程度上降低短路电流，可作为一种辅助措施；(3)塔拉750 kV出线改接方案存在线路交叉跨越、水电站群送出可靠性差等问题。建议为避免对750 kV线路交叉跨越，保证水电送出可靠送出，塔拉750 kV变压器升级改造或置换750 kV开关。

Abstract

With the operation of UHV DC in the southern part of Qinghai province, the short-circuit current of the UHV DC station and converter station has become a major problem of the safe operation of power systems. This paper analyzes the development trend and cause of short-circuit current in the southern part of Qinghai province power grid. On this basis, the measures to limit the short-circuit current are put forward. The research results show: (1) Only the addition of resistance does not limit short-circuit current of Tara 750 kV bus, and Tara 750 kV station does not has position to install resistance. (2) Though Tara 750 kV outlets out of string can reduce the short-circuit current, it can only be used as an auxiliary measure in the grid operation. (3) The 750 kV line reconnection scheme also has problems such as line crossover and poor reliability of the hydropower station group. Tara 750 kV is recommended to upgrade 750 kV switch to avoid cross-over crossing of 750 kV lines and ensure reliable delivery of hydropower station.

导出引用

傅旭, 王笑飞, 李富春, 等. 青海南部电网短路电流限制措施[J]. 分布式能源. 2020, 5(1): 65-70 https://doi.org/10.16513/j.2096-2185.DE.1901120

Xu FU, Xiaofei WANG, Fuchun LI, et al. Limiting Short-Circuit Current of Southern Qinghai Power Grid[J]. Distributed Energy Resources. 2020, 5(1): 65-70 https://doi.org/10.16513/j.2096-2185.DE.1901120

中图分类号： TK01

参考文献

列表( 原文顺序 | 文献年度倒序 | 文中引用次数倒序 ) 可视化分析

[1]	HUANG Gen. Research on limiting short-circuit current optimization of the power grid based on multi-objective method[D]. Changsha: Hunan University, 2016. 黄根. 基于多目标决策的电网限流优化方案研究[D]. 长沙：湖南大学，2016. 本文引用 [1]

[2]	FAN Xuan, ZHANG Yuhong, SU Lining, et al. Rsearch on short circuit current control in multi-infeed DC receiving power grid[J]. Smart Power. 2018, 46(3): 61-67. 范璇，张玉红，苏丽宁，等. 多直流馈入受端电网短路电流控制水平研究[J]. 智慧电力. 2018, 46(3): 61-67. 本文引用 [1]

[3]	GUAN Wenting. Study on the short-circuit current limiting measures in Xinjiang zhundong 220 kV power grid[D]. Beijing: North China Electric Power University, 2016. 关文婷. 新疆准东220kV电网短路电流限制措施研究[D]. 北京：华北电力大学，2016. 本文引用 [1]

[4]

Lin

, FENG

Yanhong

, CHEN

Weihua

, et al. Research on short-circuit current problem and limiting measures caused by UHV substation connecting to 500kV nework in Beijing-Tianjin Area and Northern Hebei[J]. Power System Protection and Control, 2017, 45(9): 133-137.

艾琳，冯艳虹，陈为化，等. 特高压接入京津冀北500kV电网短路电流问题及限流措施研究[J]. 电力系统保护与控制，2017, 45(9): 133-137.

本文引用 [1]

[5]	HU Xiaojing, LIU Juannan, GU Yonggang. Impact of substation main wiring arrangements on circuit breaker interrupting capacity verification[J]. Smart Power. 2017, 45(9): 89-93. 胡晓菁，刘娟楠，谷永刚. 变电站主接线形式对断路器遮断容量校核的影响分析[J]. 智慧电力，2017, 45(9): 89-93. 本文引用 [1]

[6]	TIAN Shijun, WANG Xifan, WANG Xiuli, et al. Short-circuit current limitation method of large scale power system based on network reconfiguration[J]. Smart Power, 2018, 46(9): 6-12＋52. 田士君，王锡凡，王秀丽，等. 基于网架调整的大电网短路电流限制方法研究[J]. 智慧电力，2018, 46(9): 6-12＋52. 本文引用 [1]

[7]	NASROLAHPOUR E, GHASEMI H. Congestion management through rotor stress controlled optimal transmission switching[J]. IET Generation Transmission & Distribution. 2015, 9(12): 1369-1376. 本文引用 [1]

[8]

YING

Linzhi

, LIU

Tianqi

, WANG

Jianquan

, et al. Adjustment for power grid configuration to limit short circuit current based on improved ant colony optimization[J]. Automation of Electric Power Systems, 2018, 42(1): 144-150.

应林志，刘天琪，王建全，等. 基于改进蚁群优化限制短路电流的网架调整措施[J]. 电力系统自动化. 2018, 42(1): 144-150.

本文引用 [1]

[9]	HUANG Gen, LUO Diansheng, LI Shuaihu, et al. Optimal line-outage measure based on comprehensive sensitivity analysis to limit short-circuit current[J]. Power System Technology, 2016, 40(1): 309-315. 黄根，罗滇生，李帅虎，等. 基于综合灵敏度分析限流的最优断线措施[J]. 电网技术. 2016, 40(1): 309-315. 本文引用 [1]

[10]

LIANG

Jifeng

, LIU

Wenying

, LIANG

Cai

, et al. Analysis of limiting effect of 500 kV autotransformer neutral grounding by small reactance on ground short-circuit current[J]. Power System Protection and Control, 2011, 39(13): 96-99.

梁纪峰，刘文颖，梁才，等. 500kV自耦变中性点串接小电抗对接地短路电流限制效果分析[J]. 电力系统保护与控制，2011, 39(13): 96-99.

本文引用 [1]

[11]	TAN Yudong, CAI Ye, XIE Xintao, et al. Short-circuit current analysis under the generator voltage-class-reduction scheme in district grids[J]. Power System Protection and Control, 2018, 46(20): 78-84. 谭玉东，蔡晔，谢欣涛，等. 大机组降压运行对分区电网短路电流的影响[J]. 电力系统保护与控制，2018, 46(20): 78-84. 本文引用 [1]

[12]	ZHAO Kang, YANG Dong, WANG Chunyi, et al. Short circuit current limiting optimization of ultra-high voltage receiving-end power grid[J]. Journal of Shandong University (Engineering Science), 2016, 46(4): 117-124. 赵康，杨冬，王春义，等. 考虑单相短路电流控制的特高压受端电网限流优化[J]. 山东大学学报(工学版), 2016, 46(4): 117-124. 本文引用 [1]

[13]	LIU Shuyong, KONG Zhaoxing, ZHANG Lai. Application of measures of limiting 220 kV short circuit currents in Tianjin power grid[J]. Power System Protection and Control, 2009, 37(21): 103-107. 刘树勇，孔昭兴，张来. 天津电网220 kV短路电流限制措施研究[J]. 电力系统保护与控制，2009, 37(21): 103-107. 本文引用 [1]

[14]

Jing

, LIU

Qing

, WU

Jiafang

, et al. Three-phase Short-circuit current calculation for power transmission system With high penetration of converter-type sources[J]Automation of Electric power systems, 2019, 43(5): 87-91, 113.

马静，刘青，吴佳芳，等. 高比例变流型电源并网的输电系统三相短路电流计算[J]. 电力系统自动化，2019, 43(5): 87-91, 113.

本文引用 [1]

[15]	GUO Jiasheng, LIU Hanjiang. Calculation method for wind power field short-circuit current considering voltage distribution[J]. Guangdong Electric Power, 2017, 30(12): 55-61. 郭家圣，刘汉江. 考虑电压分布的风电场短路电流计算方法[J]. 广东电力，2017, 30(12): 55-61. 本文引用 [1]

[16]	LIU Guodong, WANG Tao, PENG Ke, et al. Research on calculation methods of the short circuit current in distribution network considering load influence[J]. Shang Dong Dianli Jishu, 2017(4): 9-14. 刘国栋，王涛，彭克，等. 考虑负荷影响的配电网短路电流计算方法研究[J]. 山东电力技术，2017(4): 9-14. 本文引用 [1]

[17]	FU Xu, LI Fuchun, ZHANG Pengyu, et al. Limiting short-circuit current in Qinghai Xining power grid using series reactor[J]. Distributed energy, 2019, 4(3): 35-39. 傅旭，李富春，张鹏宇，等. 采用串联电抗器限制青海西宁地区电网短路电流研究[J]. 分布式能源，2019, 4(3): 35-39. 本文引用 [2]