GU Chengyu, XIONG Xianghong, SU Lei, et al. Research on the method and technology of locating dynamic stray current interference sources in rail transit. [J]. Electric drive for locomotives (6):116-121(2022)
DOI:
GU Chengyu, XIONG Xianghong, SU Lei, et al. Research on the method and technology of locating dynamic stray current interference sources in rail transit. [J]. Electric drive for locomotives (6):116-121(2022) DOI: 10.13890/j.issn.1000-128X.2022.06.017.
Research on the method and technology of locating dynamic stray current interference sources in rail transit
With the development of the power facilities across China
the underground stray current becomes more and more non-negligible as a source of hazard to electrical facilities
buried pipelines and other equipment
so it is extremely urgent to carry out an in-depth study of stray current. In the current study
a dynamic model of stray current sources was established according to the traction characteristics of the DC traction system for rail transit
and an algorithm to position underground stray current sources was proposed based on the propagation law of electromagnetic wave on the ground. The positioning method was verified by building a simulation model of dynamic diffusion of stray current along metros
in combination with the case analysis at a metro station in Shanghai
in which some geographical locations were selected and ground potentials were measured on site. The calculated coordinates using the stray current positioning algorithm are almost coincident with the actual interference source positions
including the measurement errors and the influence of the surrounding environment
etc.
which demonstrates the feasibility of this method in the research on positioning of stray current interference sources in engineering practice.
关键词
杂散电流轨道交通定位仿真模型牵引供电城市轨道交通
Keywords
stray currentrail transitpositioningsimulation modeltraction power supplyurban rail transit
ZHU Shiyou, RUAN Baishui, QUAN Hengli, et al. Study of urban rail reactive power compensation strategy based on energy-fed traction power supply equipment[J]. Advanced Technology of Electrical Engineering and Energy, 2013, 32(2): 16-19.
李威. 地铁杂散电流的监测与防治[J]. 城市轨道交通研究, 2003, 6(4): 48-52.
LI Wei. The monitor and control system of stray current corrosion in metro[J]. Urban Mass Transit, 2003, 6(4): 48-52.
SONG Yinwei, WANG Xinhua, HE Renyang, et al. Status in research on stray-current corrosion of buried steel pipelines[J]. Corrosion & Protection, 2009, 30(8): 515-518.
LI Qi, HUANG Hua, GUI Junping, et al. Study of substation ground grid protection under stray current interference[J]. Water Resources and Power, 2017, 35(9): 182-186.
CAO Fangyuan, BAI Feng. Study on influencing factors on buried metal pipeline protective distance under DC grounding electrode interference[J]. High Voltage Apparatus, 2019, 55(5): 136-143.
LUO Yuanguo, LIU Jun, MAO Junyi, et al. Analysis of the influence of rail-to-ground resistance on the stray current distribution in a power grid[J]. Power System and Clean Energy, 2021, 37(4): 32-40.
LI Yaning, LI Meng, GAO Xiaohong, et al. Simulation and experimental verification of stray current in urban rail transit based on CDEGS modeling[J]. Journal of the China Railway Society, 2021, 43(12): 49-54.
ZHU Feng, LI Jiacheng, ZENG Haibo, et al. Influence of rail-to-ground resistance of urban transit systems on distribution characteristics of stray current[J]. High Voltage Engineering, 2018, 44(8): 2738-2745.
TAO Yan. Study on self-adaption real time dynamic modeling methods of metro tractive power supply system[J/OL]. Electric Drive for Locomotives: 1-8. (2022-08-26) [ 2022-
LIU Wei, YIN Yichen, PAN Weiguo, et al. Diffusion model of DC dynamic stray current in layered soil[J]. Transactions of China Electrotechnical Society, 2021, 36(23): 4864-4873.
HUANG Hua, CHEN Lu, WU Tianyi, et al. Influence of dynamic operation of urban rail transit on DC magnetic bias of AC power grid transformer[J]. Power System Technology, 2022, 46(11): 4524-4533.
HUANG Xiaopeng, MA Qingan, LIU Wei, et al. Study on the dynamic interference of stray current in urban traction power supply system on buried metal pipelines[J/OL]. Journal of Railway Science and Engineering: 1-11. (2022-06-16) [2022-07-29]. https://kns.cnki.net/kcms/detail/43.1423.U.20220616.1020.004.htmlhttps://kns.cnki.net/kcms/detail/43.1423.U.20220616.1020.004.html. DOI:10.19713/j.cnki.43-1423/u.T20220535http://dx.doi.org/10.19713/j.cnki.43-1423/u.T20220535.
PENG Ping, ZENG Xiangjun, LENG Yang, et al. A new on-line monitoring method for stray current of DC metro system[J]. IEEJ Transactions on Electrical and Electronic Engineering, 2020, 15(10): 1482-1492.
MENG Xiaobo, ZHANG Bo, LIAO Yongli, et al. Potential influence of ground return current from HVDC grounding electrode on buried pipeline[J]. Proceedings of the CSEE, 2019, 39(20): 6113-6121.
CAI Zhichao, CHENG Hao, LIN Zhiming. Study of stray current considering traction factors of rail vehicles[J]. Advanced Technology of Electrical Engineering and Energy, 2018, 37(8): 82-88.
GUAN Zhuoran. Research on dynamic stray current distribution and suppression schemes in typical section of Tianjin rail transit[D]. Beijing: Beijing Jiaotong University, 2021.
National Technical Committee for Oil and Gas Standardization (SAC/TC 355). Measurement method for cathodic protection parameters of buried steel pipelines: GB/T 21246—2020[S]. Beijing: Standards Press of China, 2020.