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取消特高压GIS变电站隔离开关阻尼电阻的研究

DOI: 10.13336/j.1003-6520.hve.2015.05.045, PP. 1746-1752

Keywords: 特高压,气体绝缘金属封闭开关设备,阻尼电阻,特快速暂态过电压,绝缘配合,EMTP

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Abstract:

在保证安全的前提下,取消1000kV气体绝缘金属封闭开关设备(GIS)隔离开关的阻尼电阻,可减少故障率,极大提高特高压工程的经济性。因此,首先依托前期在交流特高压基地试验平台上的研究成果和工程经验,建立了芜湖变电站的仿真模型,并初步计算了特快速暂态过电压(VFTO)水平;然后通过比较试验平台与实际变电站的不同,对建模方法进行了修正,同时结合VFTO的产生机理对计算条件进行了修正,得到修正后芜湖变电站在本期和远期接线下VFTO水平略微超过允许值2087kV;随后,开展了GIS设备耐受VFTO的讨论,从VFTO波形、VFTO下的击穿特性、隔离开关耐受VFTO能力和绝缘配合方法方面,认为仿真计算结果相对实际过电压水平过于保守,且取2087kV作为绝缘耐受水平偏严在前述基础上,提出可取消芜湖变电站隔离开关阻尼电阻的结论。最后,通过调试结果的验证,表明取消芜湖变电站阻尼电阻是可靠的。本研究所用方法具备一定工程推广价值。

References

[1]  IEC 60071-4: 2004 International standard insulation co-ordination, part 4: computational guide to insulation co-ordination and modeling of electrical networks[S]. Switzerland: International Electrotechnical Commission, 2004.
[2]  陈维江,颜湘莲,王绍武,等. 气体绝缘开关设备中特快速瞬态过电压研究的新进展[J]. 中国电机工程学报,2011,31(31):1-11. CHEN Weijiang, YAN Xianglian, WANG Shaowu, et al . Recent progress in investigations on very fast transient overvoltage in gas insulated switchgear[J]. Proceedings of the CSEE, 2011, 31(31): 1-11.
[3]  陈维江,李志兵,孙 岗,等. 特高压气体绝缘开关设备中特快速瞬态过电压特性的试验研究[J]. 中国电机工程学报,2011,31(31):38-47. CHEN Weijiang, LI Zhibing, SUN Gang, et al . Experimental research on the characteristics of very fast transient overvoltage in ultra high voltage gas insulated switchgear[J]. Proceedings of the CSEE, 2011, 31(31): 38-47.
[4]  GB/Z 24842—2009 1 000 kV特高压交流输变电工程过电压和绝缘配合[S]. 北京:中国标准出版社,2009. GB/Z 24842—2009 Overvoltage and insulation co-ordination of 1 000 kV UHV AC transmission project[S]. Beijing, China: Standard Press of China, 2009.
[5]  GB/Z 24842—2009 1 000 kV特高压交流输变电工程过电压和绝缘配合[S]. 北京:中国标准出版社,2009. GB/Z 24842—2009 Overvoltage and insulation co-ordination of 1 000 kV UHV AC transmission project[S]. Beijing, China: Standard Press of China, 2009.
[6]  谷定燮,修木洪,戴 敏,等. 1 000 kV GIS变电站VFTO特性研究[J]. 高电压技术,2007,33(11):27-32. GU Dingxie, XIU Muhong, DAI Min, et al . Study on VFTO of 1 000 kV GIS substation[J]. High Voltage Engineering, 2007, 33(11): 27-32.
[7]  周 浩,李 杨,沈 扬,等. 架空线对入侵高压变压器的特快速暂态过电压波前陡度的限制[J]. 高电压技术,2013,39(4):943-950. ZHOU Hao, LI Yang, SHEN Yang, et al . Limiting the steepness of VFTO invaded wave to the EHV power transformers using overhead lines[J]. High Voltage Engineering, 2013, 39(4): 943-950.
[8]  杜 林,唐启尧,陈 辉. 三峡电站GIS快速暂态过电压现场实验及分析[J]. 高电压技术,2009,35(7):1743-1747. DU Lin, TANG Qiyao, CHEN Hui. Field measurement and analysis on very fast transient overvoltage of GIS in Three Gorges Power Plant[J]. High Voltage Engineering, 2009, 35(7): 1743-1747.
[9]  Kumar V V. Estimation and measurement of very fast transient overvoltage (VFTO) in a gas insulated substation (GIS)[D]. Bangalore, India: Indian Institute of Science Bangalore, 1999.
[10]  张 璐,张乔根,刘 石,等. 特快速瞬态过电压和雷电冲击作用下特高压GIS绝缘特性[J]. 高电压技术,2012,38(2):335-341. ZHANG Lu, ZHANG Qiaogen, LIU Shi, et al . Insulation characteristics of UHV GIS under VFTO and lightning impulse[J]. High Voltage Engineering, 2012, 38(2): 335-341.
[11]  杨 钰,王赞基,邵 冲,等. GIS母线结构及参数对VFTO波形的影响[J]. 高电压技术, 2009, 35(9): 2306-2312. YANG Yu, WANG Zanji, SHAO Chong, et al . Effect of GIS bus structure and parameters on VFTO waveform[J]. High Voltage Engineering, 2009, 35(9): 2306-2312.
[12]  Yamagata Y, Nakada Y, Nojima K, et al . Very fast transients in 1 000 kV gas insulated switchgear[C]∥IEEE Transmission and Distribution Conference. New Orleans, LA, USA: IEEE, 1999: 501-508.
[13]  Riechert U, Neumann C, Hama H, et al . Very fast transient overvoltages (VFTO) in gas-insulated UHV substations[R]. Paris, France: CIGRE, 2010.
[14]  Sologuren R K. Very fast transient overvoltages during switching of bus-charging currents by 1 100 kV disconnector[R]. Paris, France: CIGRE, 2010.
[15]  胡文堂,金祖山,李思南,等. 500 kV GIS快速暂态过电压防护措施的选择[J]. 高电压技术,2005,31(1):35-37. HU Wentang, JIN Zushan, LI Sinan, et al . Selection of protection measure for very fast transient overvoltage of 500 kV GIS[J]. High Voltage Engineering, 2005, 31(1): 35-37.
[16]  Tanaka Y Y. Suppression of VFTO in 1 100 kV GIS by adopting resistor-fitted disconnector[J]. IEEE Transactions on Power Delivery, 1997, 11(2):872-880.
[17]  IEC 60129:1984 Alternating current disconnectors and earthing switches[S]. Switzerland: International Electrotechnical Commission, 1984.
[18]  Kumar V V, Joy Thomas M, Naidu M S. Influence of switching conditions on the VFTO magnitudes in a GIS[J]. IEEE Transactions on Power Delivery, 2001, 15(4): 539-544.
[19]  Tanaka Y Y. Suppression of VFT in 1 100 kV GIS by adopting resistor-fitted disconnector[J]. IEEE Transactions on Power Deiivery, 1997, 11(2): 872-880.
[20]  刘卫东,汪林森,陈维江,等. 特高压GIS VFTO模型试验重复击穿过程研究[J]. 高电压技术,2011,37(3):644-650. LIU Weidong, WANG Linsen, CHEN Weijiang, et al . Investigation of the VFTO related repeated breakdown processes in UHV GIS[J]. High Voltage Engineering, 2011, 37(3): 644-650.
[21]  尹晓芳,于 力,刘广维.封闭式组合电器隔离开关产生的过电压[J]. 中国电机工程学报,2002,22(7):111-114. YIN Xiaofang, YU Li, LIU Guangwei. Overvoltage from gas insulated switchgear disconnector[J]. Proceedings of the CSEE, 2002, 22(7): 111-114.
[22]  CIGRE TF D1.03.10. N 2 /SF 6 gas mixture for gas insulated systems[R]. Paris, France: CIGRE General Session Report, 2014: 201.
[23]  Luxa G, Kynast E, Boeck W, et al . Recent research activity on the dielectric performance of SF 6 with special reference to very fast transients[R]. Paris, France: CIGRE General Session Report, 1988: 15-20.

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