1 000 kV电容式电压互感器抗震性能优化研究

PDF(1687 KB)

振动与冲击 ›› 2019, Vol. 38 ›› Issue (24) : 91-100.

论文

林森，程永锋，孟宪政，孙宇晗，卢智成，张谦

作者信息 +

A study on the seismic performance optimization of a 1 000 kV capacitor voltage transformer

LIN Sen，CHENG Yongfeng，MENG Xianzheng，SUN Yuhan，LU Zhicheng，ZHANG Qian

Author information +

文章历史 +

摘要

为保证特高压变电工程中重要电气设备的抗震安全性，提高瓷套类设备抵御地震灾害的能力，对1 000 kV电容式电压互感器(CVT)及装设了金属减震器的设备结构开展振动台试验研究，考察了特高压CVT的抗震性能和配套减震器的耗能效果。试验结果表明，应用减震器后设备的根部应力和顶部加速度幅值分别降低了59%和54%。针对试验中设备在抗震方面所表现出的不足，通过有限元仿真进一步探究了设备存在的结构缺陷，提出了通过减材方式将原型设备整体改进为塔型且局部缩调套管下、中段外径差至5 mm的结构改型优化方案。改型后，设备最大应力由32.46 MPa降至20.18 MPa，底、首节套管最大应力比由7.92降至2.33，应力分布更为均衡，设备所能满足的抗震设防要求由0.2g提升至0.3g。针对0.3~0.5g不同等级的抗震优化目标，结合结构改型和减震手段提出了相应的1 000 kV电压等级CVT抗震性能提升策略。

Abstract

For ensuring the seismic safety of an important electrical equipment in an ultra high voltage power transformation project, improving the seismic withstand capability of theporcelain equipment, the seismic performances of a 1000 kV capacitor voltage transformer(CVT) with and without mental dampers were investigated by shaking table tests.The test result shows that the application of dampers reduces peak stress at the bottom of the equipment and peak acceleration at the top of the equipment by 59% and 54%, respectively.Considering the disadvantage in seismic performance for the equipment displayed in test, a finite element model was established to further explorer structure defect of equipment.A structural remolding optimization scheme improving the equipment as monolithic tower-type and adjusting outer diameter difference between the middle and bottom section of bushing to 5 mm locally by reducing material was proposed.After optimization, the maximum stress of the equipment reduces from 32.46 MPa to 20.18 MPa.The maximum stress ratio of the bottom bushing to the top bushing reduces from 7.92 to 2.33, which indicates that stress distribution is more balanced.The seismic precautionary requirement which the equipment can meet is increased from 0.2g to 0.3g.For different seismic optimization targets from 0.3—0.5g, corresponding strategies for improving the seismic performance of the 1 000 kV capacitor voltage transformer, which combine modification in construction with energy absorption, were proposed.

导出引用

林森，程永锋，孟宪政，孙宇晗，卢智成，张谦. 1 000 kV电容式电压互感器抗震性能优化研究[J]. 振动与冲击, 2019, 38(24): 91-100

LIN Sen，CHENG Yongfeng，MENG Xianzheng，SUN Yuhan，LU Zhicheng，ZHANG Qian. A study on the seismic performance optimization of a 1 000 kV capacitor voltage transformer[J]. Journal of Vibration and Shock, 2019, 38(24): 91-100

参考文献

[1] GB18306-2015. 中国地震动参数区划图[S]. 北京: 中国标准出版社, 2015.
GB18306-2015. Seismic ground motion parameters zonation map of China [S]. Beijing, China: Standards Press of China, 2015.
[2] 张大长, 赵文伯, 刘明源. 5•12汶川地震中电力设施震害情况及成因分析[J]. 南京工业大学学报（自然科学版）, 2009, 31(1): 44-48.
ZHANG Dachang, ZHAO Wenbo, LIU Mingyuan. Analysis on seismic disaster damage cases and their causes of electric power equipment in 5•12 Wenchuan earthquake [J]. Journal of Nanjing University of Technology (Natural Science Edition), 2009, 31(1): 44-48.
[3] 程永锋, 刘振林, 汤华, 等. 复合外套型特高压交流CVT抗震与减震试验研究[J]. 地震工程学报, 2018, 40(2): 191-197.
CHENG Yongfeng, LIU Zhenlin, TANG Hua, et al. Experimental study on the seismic performance of polymeric-housed UHVAC capacitor voltage transformers [J]. China Earthquake Engineering Journal, 2018, 40(2): 191-197.
[4] 程永锋, 邱宁, 卢智成, 等. 硬管母线连接的1000 kV避雷器和电容电压式互感器抗震性能振动台试验[J]. 高电压技术, 2014, 40(12): 3882-3887.
CHENG Yongfeng, QIU Ning, LU Zhicheng, et al. Shake table test on seismic performance of 1000 kV arrester and capacitor voltage transformer interconnected by tube bus [J]. High Voltage Engineering, 2014, 40(12): 3882-3887.
[5] 程永锋, 朱祝兵, 卢智成, 等. 硬管母联接的500 kV避雷器和互感器耦联体系地震模拟振动台试验研究[J]. 电网技术, 2016, 40(12): 3945-3950.
CHENG Yongfeng, ZHU Zhubing, LU Zhicheng, et al. Earthquake simulation shaking table test on coupling system of 500 kV surge arrester and instrument transformer interconnected with tigid tube bus [J]. Power System Technology, 2016, 40(12): 3945-3950.
[6] 卢智成, 邱宁, 程永锋, 等. 特高压TYD1000型电容式电压互感器抗震试验研究[J]. 高电压技术, 2015, 41(11): 3694-3701.
LU Zhicheng, QIU Ning, CHENG Yongfeng, et al. Study on seismic experiment of ultra high voltage TDY1000 capacitive voltage transformer [J]. High Voltage Engineering, 2015, 41(11): 3694-3701.
[7] 孙宇晗, 卢智成, 刘振林, 等. 1100 kV特高压套管地震模拟振动台试验[J]. 高电压技术, 2017, 43(12): 4139-4144.
SUN Yuhan, LU Zhicheng, LIU Zhenlin, et al. Earthquake simulation shaking table test for 1100 kV UHV bushing [J]. High Voltage Engineering, 2017, 43(12): 4139-4144.
[8] 孙宇晗, 程永锋, 王晓宁, 等. 1100kV气体绝缘封闭开关复合外绝缘套管地震模拟振动台试验研究[J]. 中国电机工程学报, 2018, 38(7): 2179-2187.
SUN Yuhan, CHENG Yongfeng, WANG Xiaoning, et al. Studies on earthquake simulation shaking table tests of 1100kV Gas Insulated Switchgear Composite External Insulation Bushings [J]. Proceedings of the CSEE, 2018, 38(7): 2179-2187.
[9] 李绿宇, 国巍, 蒋丽忠, 等. 沈阳地铁车辆段上盖双子楼隔震性能的振动台试验研究[J]. 振动与冲击, 2017, 36(6): 56-62.
LI Lvyu, GUO Wei, JIANG Lizhong, et al. Shaking table tests on the isolation performance of two buildings built on the top head of Shenyang metro depot [J]. Journal of Vibration and Shock, 2017, 36(6): 56-62.
[10] 刘礼标, 王永甫, 刘方, 等. 断层走向对隧道地震响应影响的振动台试验研究[J]. 振动与冲击, 2017, 36(21): 196-202.
LIU Libiao, WANG Yongfu, LIU Fang, et al. Shaking table model tests on the influence of fault strike on the seismic responses of tunnels [J]. Journal of Vibration and Shock, 2017, 36(21): 196-202.
[11] 曹枚根, 周福霖, 谭平, 等. 大型电力变压器及套管振动台抗震试验研究[J]. 振动与冲击, 2011, 30(11): 122-129.
CAO Meigen, ZHOU Fulin, TAN Ping, et al. Shaking table test on seismic performance of large power transformer with bushings [J]. Journal of Vibration and Shock, 2011, 30(11): 122-129.
[12] 曹枚根, 周福霖, 谭平. 变压器及套管隔震体系振动台试验及地震响应分析[J]. 振动与冲击, 2012, 31(21): 22-29.
CAO Meigen, ZHOU Fulin, TAN Ping. Shaking table test and seismic response analysis for a transformer isolation system with bushings [J]. Journal of Vibration and Shock, 2012, 31(21): 22-29.
[13] Siamak E, Kiarash M D, Nicholas D O, et al. Mechanical behavior of electrical hollow composite post insulators: Experimental and analytical study. Engineering Structures [J]. Engineering Structures, 2015, 93: 129-141.
[14] Seyed A Z, Mahmood H, Mohsen G A. Seismic failure probability of a 400 kV power transformer using analytical fragility curves [J]. Engineering Failure Analysis, 2016, 70: 273-289.
[15] Seyed A Z, Mahmood H, Mohsen G A. Evaluation of power substation equipment seismic vulnerability by multivariate fragility analysis: A case study on a 420 kV circuit breaker [J]. Soil Dynamics and Earthquake Engineering, 2017, 92: 79-94.
[16] 谢强, 何畅, 杨振宇, 等. 1100kV特高压变压器瓷套管地震作用破坏试验与分析[J]. 高电压技术, 2017, 43(10): 3154-3162.
XIE Qiang, HE Chang, YANG Zhenyu, et al. Tests and analyses on failure mechanism of 1100kV UHV transformer porcelain bushing [J]. High Voltage Engineering, 2017, 43(10): 3154-3162.
[17] 周云. 金属耗能减震结构设计理论及应用[M]. 武汉: 武汉理工大学出版社, 2013.
ZHOU Yun. Theory and application of metal energy dissipation structure design [M]. Wuhan, China: Wuhan University of Technology Press, 2013.
[18] 刘振林, 卢智成, 孟宪政, 等. 用于高压电气设备的剪切型铅减震器性能影响研究[J]. 地震工程学报, 2016, 38(4): 564-569．
LIU Zhenlin, LU Zhicheng, MENG Xianzheng, et al. Performance of a shear lead damper applied to high-voltage electrical equipment [J]. China Earthquake Engineering Journal, 2016, 38(4): 564-569.
[19] 李亚琦, 李小军, 刘锡荟. 铅合金减震器的动力特性及适用范围[J]. 地震学报, 2005, 27(1): 86-95.
LI Yaqi, LI Xiaojun, LIU Xihui. Dynamic behavior and applicability of lead alloy absorber [J]. Acta Seismologica Sinica, 2005, 27(1): 86-95.
[20] 尤红兵, 赵凤新. 加载频率对铅合金减震器动力特性的影响[J]. 震灾防御技术, 2011, 6(4): 384-395.
YOU Hongbing, ZHAO Fengxin. Effect of loading frequency on dynamic properties of lead alloy absorber [J]. Technology for Earthquake Disaster Prevention, 2011, 6(4): 384-395.
[21] 李圣, 卢智成, 邱宁, 等. 加装金属减震装置的1000kV避雷器振动台试验研究[J]. 高电压技术, 2015, 41(5): 1740-1745.
LI Sheng, LU Zhicheng, QIU Ning, et al. Study on shaking table test of 1000kV surge arrester with metal damper device [J]. High Voltage Engineering, 2015, 41(5): 1740-1745.
[22] 胡聿贤. 地震工程学[M]. 北京: 地震出版社, 2006.
HU Yuxian. Earthquake engineering [M]. Beijing, China: Seismological Press, 2006.
[23] T/CSEE 0010-2016. 1000kV变电站抗震设计规范[S]. 北京: 中国电力出版社, 2017.
T/CSEE 0010-2016. Code for seismic design of 1000kV substations [S]. Beijing, China: China Electric Power Press, 2017.
[24] 尤红兵, 赵凤新. 特高压电气设备抗震设计反应谱特征周期取值研究[J]. 震灾防御技术, 2014, 9(2): 171-181.
YOU Hongbing, ZHAO Fengxin, Characteristic period value of seismic design response spectrum of UHV electrical equipments [J]. Technology for Earthquake Disaster Prevention, 2014, 9(2): 171-181.
[25] Q/GDW 11677-2017. 特高压直流设备抗震技术规范[S]. 北京: 中国电力出版社, 2018.
Q/GDW 11677-2017. Technical code for seismic technology of ultra-high voltage direct-current equipment [S]. Beijing, China: China Electric Power Press, 2018.
[26] GB 50009-2012. 建筑结构荷载规范[S]. 北京: 中国建筑工业出版社, 2012.
GB 50009-2012. Load code for the design of building structures [S]. Beijing, China: China Architecture & Building Press, 2012.
[27] 刘振林, 卢智成, 张搏宇, 等. 特高压瓷套避雷器标准化抗震性能优化[J]. 电网技术, 2016, 40(5): 1570-1575.
LIU Zhenlin, LU Zhicheng, ZHANG Boyu, et al. Optimization research on seismic safety performance of UHV porcelain bushing lightning arrester standardization [J]. Power System Technology, 2016, 40(5): 1570-1575.
[28] 林森, 程永锋, 卢智成, 等. ±1100kV换流站内避雷器抗震及减震研究[J]. 高电压技术, 2017, 43(10): 3198-3207.
LIN Sen, CHENG Yongfeng, LU Zhicheng, et al. Investigation on seismic performance and shock absorption of arrester in ±1100kV converter station [J]. High Voltage Engineering, 2017, 43(10): 3198-3207.