DC Current Distribution in Both AC Power Grids and Pipelines Near HVDC Grounding Electrode Considering Their Interaction

被引：12
|
作者：
Zhang, Bo [1 ]
Cao, Fangyuan [1 ]
Zeng, Rong [1 ]
He, Jinliang [1 ]
Meng, Xiaobo [2 ]
Liao, Yongli [2 ]
Li, Ruihai [2 ]
机构：
[1] Tsinghua Univ, State Key Lab Power Syst, Dept Elect Engn, Beijing 100084, Peoples R China
[2] China South Power Grid, Elect Power Res Inst, Guangzhou 510530, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2019年 / 34卷 / 06期
关键词：
DC current; HVdc transmission; grounding; pipelines; substations; STRAY CURRENT; ELECTRICAL INTERFERENCE; NUMERICAL-ANALYSIS; MULTILAYER EARTH; GAS-PIPELINES; SOIL; COMPUTATION; POTENTIALS; SIMULATION; SYSTEM;
D O I：
10.1109/TPWRD.2019.2896121
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The dc current injected into the earth from the grounding electrodes of an HVdc system could flow into the ac electric power grids and gas pipelines through their grounding points. The dc current distribution either in ac power grids or in pipelines would be affected by each other. In this paper, a numerical approach to simulate the dc current distribution in ac power grids and gas pipelines considering the interaction is put forward. The approach is validated by field test. The dc current distribution in ac power grids and gas pipelines is discussed based on the calculation result in a real case. It is found that the effect of ac power grids on the current distribution in gas pipelines is greater than the effect of gas pipelines on the current distribution in ac power grids.
引用
收藏
页码：2240 / 2247
页数：8
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