Load characteristics analysis for spacers of twin bundle conductor lines under the action of short-circuit current
GAO Yingbo1, YAN Bo1, LIU Guanghui2, CAI Daoda1, TAO Yaguang2, LIU Zehui2
1.College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;
2.State Grid Henan Electric Power Research Institute, Zhengzhou 450052, China
Abstract:To study the load characteristics of spacers for twin bundle conductor lines during short-circuit fault, based on the power system analysis method, current-carrying conductor electromagnetic force theory and finite element method, a numerical simulation method for dynamic responses of bundle conductor lines with spacers during short-circuit fault is proposed. Parameter study for the effects of short-circuit current, conductor type, span length, spacer arrangements, spacing between sub-conductors, initial tension, elevation difference and wind speed on the load characteristics of the spacers of twin bundle conductor lines are performed by the presented numerical method. The numerical results reflect that the maximum load on a spacer during short-circuit fault determined by the presented method is smaller than that by the formula in the design code for smaller short-circuit current, but is larger for larger short-circuit current. The results obtained by the parameter study may provide important instruction for the design and arrangement of spacers for twin bundle conductor lines.
高英博1,严波1,刘光辉2,蔡道达1,陶亚光2,刘泽辉2. 双分裂线路短路电流作用下间隔棒载荷特性分析[J]. 振动与冲击, 2023, 42(18): 180-189.
GAO Yingbo1, YAN Bo1, LIU Guanghui2, CAI Daoda1, TAO Yaguang2, LIU Zehui2. Load characteristics analysis for spacers of twin bundle conductor lines under the action of short-circuit current. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(18): 180-189.
[1] 余晓东. 电力金具设计[M]. 北京: 中国电力出版社,2019.
[2] Mehta P R, Swart R L. Generalized formulation for electromagnetic forces on current-carrying conductors[J]. IEEE Transactions on Power Apparatus and Systems, 1967, PAS-86(2): 155-166.
[3] Ward D J. Overhead distribution conductor motion due to short-circuit forces[J]. IEEE Transactions on Power Delivery, 2003, 18(4) : 1534-1538.
[4] Xu X, Yang H Y, Craven K. Magnetically induced swing movement of overhead power line conductors in a transition span subsequent to an initial fault[J]. Electric Power Systems Research, 2009, 79(5): 809-817.
[5] Otero A F, Vilacha C, Moreira J C,et al. Electrodynamics simulation of overhead power lines[J]. IEEE Transactions on Power Delivery, 2012, 27(2).
[6] Zhou W J, Yang S, He X X,et al. Experimental investigation into the mechanism of 220-kV vertical-arrayed double-bundle transmission-line conglutination[J]. IEEE Transactions on Power Delivery, 2013, 28(4): 1980-1985.
[7] 高剑. 220kV垂直双分裂线路粘连机理研究[D].长沙理工大学,2015.
[8] Zemljarič B, Ažbe V. Generalised electromagnetic forces in an absolute nodal coordinate formulation[J]. Journal of Sound and Vibration, 2021, 510.
[9] 周林抒, 严波, 赵洋, 等. 电磁力对双分裂导线舞动的影响[J].振动与冲击, 2016, 35(04): 141-147.
ZHOU Lin-shu, YAN Bo, ZHAO Yang,et al. Effect of electromagnetic force on galloping of twin bundle conductor lines[J]. Journal of Vibration and Shock, 2016, 35(04): 141-147.
[10] Huang Guizao, Yan Bo, Mou Zheyue,et al. Numerical investigation into torsional behavior of quad bundle conductors[J]. IEEE Transactions on Power Delivery, 2020, PP(99): 1-1.
[11] Manuzio C. An investigation of the forces on bundle conductor Spacers under fault conditions[J]. IEEE Transactions on Power Apparatus and Systems, 1967, PAS-86(2): 166-184.
[12] DL/T 1098-2016, 间隔棒技术条件和试验方法[S]. 北京:中国电力出版社, 2016.
[13] 欧珠光, 张宏志. 紧凑型线路相间间隔棒短路冲击力的实验研究[J]. 广西电力工程, 1996(4): 1-4.
OU Zhu-guang, ZHANG Hong-zhi. Experimental study on short-circuit impact force of interphase spacer on compact transmission line[J]. Guangxi Electric Power Engineering, 1996(4): 1-4.
[14] 胡建平, 高虹亮. 基于有限元法分析间隔棒力学性能[J]. 电力建设, 2009, 30(12): 32-34+37.
HU Jian-ping, GAO Hong-liang. Analysis on spacer mechanical properties based on finite element method[J]. Electric Power Construction, 2009, 30(12): 32-34+37.
[15] 李升来, 周晋. 多端柔性直流线路四分裂阻尼间隔棒性能分析[J]. 武汉大学学报(工学版), 2018,51(S1):327-330.
LI Sheng-lai, ZHOU Jin. Performance analysis of quad-bundled damper spacers used in multi-terminal flexible DC grid[J]. Engineering Journal of Wuhan University, 2018,51(S1):327-330.
[16] 司学振, 陶亚光, 宋高丽, 等. 短路电流下间隔棒受力仿真研究[J]. 河南科技, 2020(13): 138-141.
SI Xue-zhen, TAO Ya-guang, SONG Gao-li,et al. Research on the stress of spacer rod under short circuit current[J]. Henan Science and Technology. 2020(13): 138-141.
[17] 姚李孝, 姚金雄, 安源. 基于Matlab/Simulink的高压输电线路故障定位的仿真研究[J]. 电网技术, 2005(10):53-56.
YAO Li-xiao, YAO Jin-xiong, AN Yuan. Fault location simulation for high voltage power transmission line based on Matlab/Simulink[J]. Power System Technology, 2005(10): 53-56.
[18] 吴天明, 谢小竹, 彭彬. MATLAB电力系统设计与分析[M]. 北京: 国防工业出版社, 2004.
[19] ABAQUS user’s manual, version 2017, Dassault SIMULIA Company, 2017.
[20] 于群, 曹娜. MATLAB/Simulink电力系统建模与仿真[M]. 北京: 机械工业出版社, 2017.
[21] DL/T 5551-2018, 架空输电线路荷载规范[S]. 北京:中国计划出版社, 2019.
[22] Fekr M R, Mcclure G. Numerical modelling of the dynamic response of ice-shedding on electrical transmission lines[J]. Atmospheric Research, 1998, 46(1-2): 1-11