|
|
|
| Experimental Study on Propagation Characteristics of Half Wavelength Power Transmission Lines with Reduced Scale |
| Jiao Chongqing1, Wang Bei2, He Ri1, Hu Yifan1, Li Yurong1 |
1. State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources North China Electric Power University Beijing 102206 China;
2. State Grid Materials Limited Company Beijing 100120 China |
|
|
|
|
Abstract Based on the scaling principle, a half wavelength scale experimental line of length 1.5km is built in the outdoor field, and the working frequency of the experimental line is raised to 100kHz. The experimental study of the half wavelength transmission technology is first carried out. The voltage values at the ends, middle, 1/4 and 3/4 of the lines under different terminal loads are measured, and the point to point and overvoltage characteristics of the steady half wavelength transmission are verified. The test also shows that the point to point characteristics will be lost in the case of extreme load asymmetry, and the number of line sag and the number of transposition segments have little influence on the voltage distribution along the line, and the effect of line length change depends on the terminal load type.
|
|
Received: 01 May 2018
Published: 28 June 2019
|
|
|
|
|
|
[1] 焦重庆, 汪贝, 李昱蓉, 等. 用于半波长输电线路的精细化传输线模型[J]. 高电压技术, 2018, 44(1): 3-13.
Jiao Chongqing, Wang Bei, Li Yurong, et al.Refined transmission line model for half-wavelength trans- mission lines[J]. High Voltage Engineering, 2018, 44(1): 3-13.
[2] 张彦涛, 秦晓辉, 汤涌, 等. 输电线路工频动态相量模型在半波长交流输电系统机电暂态仿真中的应用研究[J]. 中国电机工程学报, 2017, 37(18): 5294-5302, 5528.
Zhang Yantao, Qin Xiaohui, Tang Yong, et al.Half- wavelength system transients stability simulation using dynamic phasor model of AC transmission line[J]. Proceedings of the CSEE, 2017, 37(18): 5294-5302, 5528.
[3] 孙帅, 卢铁兵, 崔翔. 交直流导线平行架设时混合电场特性分析[J]. 电工技术学报, 2017, 32(8): 138-143.
Sun Shuai, Lu Tiebing, Cui Xiang.The characteristics of hybrid electric field under the DC wire parallel with the AC wire[J]. Transactions of China Electrotechnical Society, 2017, 32(8): 138-143.
[4] 汤兰西, 董新洲. 半波长交流输电线路行波差动电流特性的研究[J]. 中国电机工程学报, 2017, 37(8): 2261-2270.
Tang Lanxi, Dong Xinzhou.Study on the characteristic of travelling wave differential current on half- wave-length AC transmission lines[J]. Proceedings of the CSEE, 2017, 37(8): 2261-2270.
[5] 王兴国, 杜丁香, 周泽昕, 等. 半波长交流输电线路伴随阻抗保护[J]. 电网技术, 2017, 41(7): 2347-2352.
Wang Xingguo, Du Dingxiang, Zhou Zexin, et al.Adjugate impedance protection of half-wavelength AC transmission line[J]. Power System Technology, 2017, 41(7): 2347-2352.
[6] 周攀, 汪大洋, 戴朝波, 等. 基于MMC的半波长交流输电变频调谐技术[J]. 高电压技术, 2018, 44(1): 99-105.
Zhou Pan, Wang Dayang, Dai Chaobo, et al.Variable frequency tuning technology of half-wavelength AC transmission based on MMC[J]. High Voltage Engineering, 2018, 44(1): 99-105.
[7] 梁涵卿, 万磊. 半波长交流输电点对网双落点系统的穿越功率特性[J]. 中国电机工程学报, 2017, 37(18): 5331-5338, 5532.
Liang Hanqing, Wan Lei.Research on cross power characteristics of the half-wavelength AC trans- mission in the system of single point connected to two terminals[J]. Proceedings of the CSEE, 2017, 37(18): 5331-5338, 5532.
[8] 崔翔. 无损耗传输线物理模拟的集总电路级联数目确定方法[J]. 中国电机工程学报, 2017, 37(9): 2561-2571.
Cui Xiang.Chained number of lumped-circuits for physical analogy of the lossless transmission lines[J]. Proceedings of the CSEE, 2017, 37(9): 2561-2571.
[9] 焦重庆, 汪贝, 李昱蓉, 等. 一种用于传输线的缩尺等效方法[J]. 电工技术学报, 2018, 33(9): 2155-2161.
Jiao Chongqing, Wang Bei, Li Yurong, et al.A scaling method for equivalent modelling of trans- mission lines[J]. Transactions of China Electro- technical Society, 2018, 33(9): 2155-2161.
[10] 谷鹏, 王平, 韩彬, 等. 半波长输电真型试验线路构建分析及其过电压特性[J]. 电力建设, 2018, 39(3): 101-107.
Gu Peng, Wang Ping, Han Bin, et al.Route construction analysis and overvoltage characteristics of true type half wavelength AC transmission line test[J]. Electric Power Construction, 2018, 39(3): 101-107. |
|
|
|
2019, Vol. 34 
