A Time-Domain Calculation Method of Travelling-Wave on Double-Circuit HVDC Transmission Line with Shared Towers
Li Haifeng1, Wu Jiyang2, Liang Yuansheng1, Zhang Kun1, Wang Gang1
1.School of Electric Power South China University of Technology Guangzhou 510641 China 2.Maintenance & Test Center CSG EHV Power Transmission Company Guangzhou 510663 China
Abstract：The double-circuit transmission line with shared towers is not balanced. Thus the frequency-dependent characteristic of traveling wave propagation, refraction and reflection are the key issue of its travelling-wave calculation. A time-domain calculation method of travelling-wave on double-circuit HVDC transmission line is proposed. Based on the vector fitting method and superposition theorem, the characteristics of refraction and reflection of fault generated travelling wave at the end of DC line are equivalent to the matrix of sequential wave impedance. Meanwhile, a time-domain step response matrix is used to calculate the frequency-dependent characteristics in the propagation process of travelling wave, which would avoid the complicated time-frequency conversion. Finally the PSCAD/EMTDC simulation model of a real double-circuit HVDC transmission lines with shared towers was constructed and extensive simulation results verify the validity and accuracy of the proposed method.
李海锋, 武霁阳, 梁远升, 张坤, 王钢. 同塔双回直流输电线路行波时域计算方法[J]. 电工技术学报, 2018, 33(3): 573-580.
Li Haifeng, Wu Jiyang, Liang Yuansheng, Zhang Kun, Wang Gang. A Time-Domain Calculation Method of Travelling-Wave on Double-Circuit HVDC Transmission Line with Shared Towers. Transactions of China Electrotechnical Society, 2018, 33(3): 573-580.
[1] 汪娟娟, 禤小聪, 罗敬华, 等. 共站同塔双回高压直流输电系统双回控制功能及其仿真[J]. 电力系统自动化, 2014, 38(23): 119-126. Wang Juanjuan, Xuan Xiaocong, Luo Jinghua, et al.Double-circuit control function for HVDC transmission system adopting common station and double-circuit on the same tower[J]. Automation of Electric Power Systems, 2014, 38(23): 119-126. [2] 宋国兵, 蔡新雷, 高淑萍, 等. 高压直流输电线路故障定位研究综述[J]. 电力系统保护与控制, 2012, 40(5): 133-137, 147. Song Guobing, Cai Xinlei, Gao Shuping, et al.Survey of fault location research for HVDC transmission lines[J]. Power System Protection and Control, 2012, 40(5): 133-137, 147. [3] 张爱玲. 溪洛渡送电广东同塔双回直流输电工程控制保护策略研究[J]. 电力系统保护与控制, 2011, 39(9): 72-76 Zhang Ailing.Study of control and protection strategies for Xiluodu-Guangdong double HVDC systems erected on the same tower[J]. Power System Protection and Control, 2011, 39(9): 72-76. [4] 陈仕龙, 谢佳伟, 毕贵红, 等. 一种特高压直流输电线路神经网络双端故障测距新方法[J]. 电工技术学报, 2015, 30(4): 257-264. Chen Shilong, Xie Jiawei, Bi Guihong, et al.A novel two terminal fault location method used ANN for UHVDC transmission line[J]. Transactions of China Electrotechnical Society, 2015, 30(4): 257-264. [5] 陈仕龙, 张杰, 刘红锐. 等. 特高压直流输电线路单端电流方向暂态保护[J]. 电工技术学报, 2016, 31(2): 171-177. Chen Shilong, Zhang Jie, Liu Hongrui, et al.A single-ended current direction transient protection of UHVDC transmission line[J]. Transactions of China Electrotechnical Society, 2016, 31(2): 171-177. [6] 高淑萍, 索南加乐, 宋国兵, 等. 基于分布参数模型的直流输电线路故障测距方法[J]. 中国电机工程学报, 2010, 30(13): 75-80. Gao Shuping, Suonan Jiale, Song Guobing, et al.Fault location method for HVDC transmission lines on the basis of the distributed parameter model[J]. Proceedings of the CSEE, 2010, 30(13): 75-80. [7] 李爱民, 蔡泽祥, 李晓华. 直流线路行波传播特性的解析[J]. 中国电机工程学报, 2010, 30(25): 94-100. Li Aimin, Cai Zexiang, Li Xiaohua.Study on the propagation characteristics of traveling waves in HVDC transmission lines on the basis of analytical method[J]. Proceedings of the CSEE, 2010, 30(25): 94-100. [8] 宋国兵, 周德生, 焦在滨, 等. 一种直流输电线路故障测距新原理[J]. 电力系统自动化, 2007, 31(24): 57-61. Song Guobing, Zhou Desheng, Jiao Zaibin, et al.A novel fault location principle for HVDC transmission line[J]. Automation of Electric Power Systems, 2007, 31(24): 57-61. [9] 代杰杰, 刘亚东姜文娟等. 基于雷电行波时域特征的输电线路雷击类型辨识方法[J]. 电工技术学报, 2016, 31(6): 242-250. Dai Jiejie, Liu Yadong, Jiang Wenjuan, et al.Identification of back striking and shielding failure on transmission line based on time domain characteristics of traveling wave[J]. Transactions of China Electrotechnical Society, 2016, 31(6): 242-250. [10] 周尚礼, 周全, 邬乾晋.同塔双回高压直流输电线路故障行波特性研究[J]. 电力系统保护与控制, 2014, 42(23): 69-75. Zhou Shangli, Zhou Quan, Wu Qianjin.Study on fault travelling wave characteristics in double-circuit HVDC[J]. Power System Protection and Control, 2014, 42(23): 69-75. [11] 王海军, 周全, 梁远升, 等. 基于电压突变量的同塔双回直流输电线路故障选线方法[J]. 电力系统保护与控制, 2014, 43(7): 23-29. Wang Haijun, Zhou Quan, Liang Yuansheng, et al.Fault line selection of double-circuit HVDC transmission line based on voltage variation[J]. Power System Protection and Control, 2014, 43(7): 23-29. [12] 李海锋, 丘映丹, 郭履星, 等. 基于单回电气量的同塔双回直流线路故障测距算法[J]. 电力系统自动化, 2016, 40(12): 172-178. Li Haifeng, Qiu Yingdan, Guo Lüxing, et al.Fault location method for double HVDC transmission lines on same tower based on single-circuit electrical quantities[J].Automation of Electric Power Systems, 2016, 40(12): 172-178. [13] 刘琦, 邰能灵, 范春菊, 等. 同塔四回不对称参数线路的相模变换[J]. 电工技术学报, 2015, 30(18): 171-179. Liu Qi, Tai Nengling, Fan Chunju, et al.Phase-mode transformation of asymmetry-parameter four-parallel lines on the same tower[J]. Transactions of China Electrotechnical Society, 2015, 30(18): 171-179. [14] 郭培育, 邰能灵, 于仲安, 等. 基于环流分量的同塔四回输电线路单回线故障选线新方法[J]. 电工技术学报, 2015, 30(24): 206-214. Guo Peiyu, Tai Nengling, Yu Zhongan, et al.New single-line faulted selecting method for four-parallel transmission lines on the same tower based on loop flow component[J]. Transactions of China Electrotechnical Society, 2015, 30(24): 206-214. [15] 刘琦, 邰能灵, 范春菊, 等. 基于单端电气量的不对称参数同塔四回线选相方法[J]. 电工技术学报, 2016, 31(4): 178-185. Liu Qi, Tai Nengling, Fan Chunju, et al.Fault phase selection scheme for quadruple-circuit transmission lines with asymmetrical parameter based on single-ended electrical quantities[J]. Transactions of China Electrotechnical Society, 2016, 31(4): 178-185. [16] 徐鹏, 王钢, 李海锋, 等. 基于环流量的同杆四回输电线路故障选线[J]. 电力系统保护与控制, 2011, 39(3): 78-83, 118. Xu Peng, Wang Gang, Li Haifeng, et al.Fault line selection for four-parallel lines on same tower based on circulation currents[J]. Power System Protection and Control, 2011, 39(3): 78-83, 118. [17] 梁远升, 王钢, 李海锋, 等. 基于电位系数矩阵的同塔双回直流输电线路故障选线方法[J]. 电力系统自动化, 2016, 40(3): 97-102. Liang Yuansheng, Wang Gang, Li Haifeng,et al.Fault line selection scheme of double HVDC transmission lines on same tower based on potential coefficient matrix[J]. Automation of Electric Power Systems, 2016, 40(3): 97-102. [18] 李海锋, 马燕君, 王钢, 等. 基于单回线路信息的同塔双回高压直流线路故障选线方法[J]. 高电压技术, 2016, 42(5): 1636-1643. Li Haifeng, Ma Yanjun, Wang Gang, et al.Fault-line selection method for double-circuit HVDC line on the same tower based on single-circuit information[J]. High Voltage Engineering, 2016, 42(5): 1636-1643. [19] 徐敏, 蔡泽祥, 刘永浩, 等. 基于宽频信息的高压直流输电线路行波故障测距方法[J]. 电工技术学报, 2013, 28(1):259-265. Xu Min, Cai Zexiang, Liu Yonghao, et al.A novel fault location method for HVDC transmission line based on the broadband travelling wave information[J]. Transactions of China Electrotechnical Society, 2013, 28(1): 259-265. [20] Gustavsen B, Semlyen A.Rational approximation of frequency domain responses by vector fitting[J]. IEEE Transactions on Power Delivery, 1999, 14(3):1052-1061. [21] Gustavsen B, Semlyen A.Simulation of transmission line transients using vector fitting and modal decomposition[J]. IEEE Transactions on Power Delivery, 1998, 13(2): 605-614. [22] 郭敬梅, 王钢, 曾德辉, 等.用于高压直流线路短路计算的频率响应降序分段自适应匹配方法. 中国电机工程学报. 2016, 36(13): 3534-3545. Guo Jingmei, Wang Gang, Zen Dehui, et al.Descending-order adaptive frequency-partitioned fitting algorithm of frequency responses for short-circuit calculation on HVDC transmission lines[J]. Proceedings of the CSEE, 2016, 36(13): 3534-3545. [23] 郑君里, 应启珩, 杨为理. 信号与系统(上册)[M]. 北京: 高等教育出版社, 2000: 24-26.
2018, Vol. 33 
