| 0 | 0 | 2 |
| 下载次数 | 被引频次 | 阅读次数 |
内蒙古电力（集团）有限责任公司内蒙古电力科学研究院分公司，呼和浩特010020）摘要：直流接地极作为高压直流输电系统的重要组成部分，其电场分布特性对系统的安全稳定运行及周边环境具有重要影响。采用CDEGS软件建立了直线形、星形、单圆环形、双圆环形直流接地极电场特性仿真模型，通过对比分析发现，双圆环形直流接地极在电场分布特性和散流性能方面表现最佳。针对双圆环形直流接地极，探讨了土壤电阻率、接地极埋深以及内外极环半径对其电场特性的影响规律，提出采用灰色关联分析法量化各参数对地表电位和跨步电压的灵敏度的方法。结果表明：地表电位和跨步电压与土壤电阻率呈正相关性，与接地极埋深及半径呈负相关；灰色关联分析表明，土壤电阻率是影响地表电位的主要因素，其关联系数为0.897 3。对于跨步电压，土壤电阻率与接地极埋深的影响程度相当，关联系数分别为0.800 5和0.794 7；此外，当接地极内外环半径比为0.728时，电场分布的均匀性最优。
Abstract：As an important component of high-voltage direct current(HVDC) transmission system, the electric field distribution characteristics of DC grounding electrode have a significant impact on the safe and stable operation of the system as well as the surrounding environment. CDEGS software is used to establish simulation models of linear, star-shaped, single-ring, and double-ring DC grounding electrodes for electric field characteristics. Comparative analysis shows that the double-ring DC grounding electrode performs best in terms of electric field distribution characteristics and current dissipation performance. For the double-ring DC grounding electrode, the effects of soil resistivity, grounding electrode burial depth, and inner and outer ring radii on its electric field characteristics are thoroughly investigated. The grey relational analysis method is proposed to quantify the sensitivity of each parameter to the surface potential and step voltage. The results indicate that surface potential and step voltage are positively correlated with soil resistivity and negatively correlated with the grounding electrode burial depth and radius. Grey relational analysis shows that soil resistivity is the dominant factor affecting surface potential, with a correlation coefficient of 0.897 3. For step voltage, the influence of soil resistivity and electrode burial depth is comparable, with correlation coefficients of 0.800 5 and 0.794 7, respectively. Moreover, when the ratio of the inner to outer ring radius of the grounding electrode is 0.728, the uniformity of the electric field distribution is optimal.
[1] 邹常跃，韦嵘晖，冯俊杰，等.柔性直流输电发展现状及应用前景[J].南方电网技术，2022，16（3）：1-7. ZOU Changyue, WEI Ronghui, FENG Junjie, et al. The Current Status and Application Prospects of Flexible DC Transmission[J]. Southern Power System Technology, 2022, 16(3): 1-7.
[2] 吕鹏飞.交直流混联电网下直流输电系统运行面临的挑战及对策[J].电网技术，2022，46（2）：503-510. LYU Pengfei. Challenges and Countermeasures of DC Transmission System Operation Under AC-DC Hybrid Power Grid[J]. Power System Technology, 2022, 46(2): 503-510.
[3] 叶华洋，邓松，李再鹏，等“. 双碳”目标下电网企业碳核算及碳排放双控机制构建探索[J].电力大数据，2025，28（4）：1-12. YE Huayang, DENG Song, LI Zaipeng, et al. Exploration on Carbon Accounting and Construction of Dual Controlechanism of Carbon Emission for Power Grid Enterprises Under the "Dual Carbon" Goal[J]. Power Systems and Big Data, 2025, 28(4): 1-12.
[4] 李晖，刘栋，姚丹阳.面向碳达峰碳中和目标的我国电力系统发展研判[J].中国电机工程学报，2021，41（18）：6245-6259. LI Hui, LIU Dong, YAO Danyang. Assessment of China's Power System Development Towards Carbon Peaking and Carbon Neutrality Goals[J]. Proceedings of the CSEE, 2021, 41(18): 6245-6259.
[5] 刘娟，施超，王志敏，等“. 双碳”背景下大型能源基地风光水火打捆能力研究[J].云南电力技术，2025，53（1）：26-31. LIU Juan, SHI Chao, WANG Zhimin, et al. Research on the Bundling Capacity of Wind, Solar, Hydro, and Thermal Power in Large Energy Bases Under the "Dual Carbon" Background [J]. Yunnan Electric Power, 2025, 53(1): 26-31.
[6] 许童羽.面向新型电力系统的智慧配电网与清洁能源消纳技术[J].东北电力技术，2024，45（10）：63-64. XU Tongyu. Smart Distribution Network and Clean Energy Accommodation Technology for New Power Systems[J]. Northeast Electric Power Technology, 2024, 45(10): 63-64.
[7] 黄雨涵，丁涛，李雨婷，等.碳中和背景下能源低碳化技术综述及对新型电力系统发展的启示[J].中国电机工程学报，2021，41（增刊1）：28-51. HUANG Yuhan, DING Tao, LI Yuting, et al. A review of low-carbon energy technologies in the context of carbon neutrality and its enlightenment for the development of new power systems[J]. Proceedings of the CSEE, 2021, 41(S1): 28-51.
[8] 刘鸿运，齐德江，叶鹏.基于氢能消纳的直流微电网控制研究综述[J].东北电力技术，2025，46（11）：48-55. LIU Hongyun, Qi Dejiang, YE Peng. Review on Control of DC Microgrid Based on Hydrogen Energy Accommodation[J]. Northeast Electric Power Technology, 2025, 46(11): 48-55.
[9] 胡上茂，吴泳聪，刘刚，等.复杂土壤条件高压直流接地极与埋地油气管道防护距离研究[J].南方电网技术，2024，18（6）：29-35. HU Shangmao, WU Yongcong, LIU Gang, et al. Research on the protection distance between high-voltage DC grounding electrode and buried oil and gas pipeline under complex soil conditions[J]. Southern Power System Technology, 2024, 18(6): 29-35.
[10] 付振兴，谭捍东，刘慧芳，等.高压直流圆环形接地极电位数值模拟及影响因素分析[J].电网技术，2016，40（6）：101-105. FU Zhenxing, TAN Handong, LIU Huifang, et al. Numerical simulation and influencing factors analysis of high-voltage DC toroidal grounding electrode potential[J]. Power System Technology, 2016, 40(6): 101-105.
[11] 严干贵，任爽，王振洋，等.直驱风电场经LCC-HVDC外送系统的次同步振荡特性分析[J].东北电力大学学报，2025，45（2）：69- 81. YAN Gangui, REN Shuang, WANG Zhenyang, et al. Analysis of Sub-Synchronous Oscillation Characteristics of Direct-Drive Wind Farms Delivered via LCC-HVDC System[J]. Journal of Northeast Electric Power University, 2025, 45(2): 69-81.
[12] 王睿，孙秋野，张力，等“. 双高”电力系统的稳定机理分析与致稳控制[J].东北电力大学学报，2024，44（4）：2-3. WANG Rui, SUN Qiuye, ZHANG Li, et al. Stability Mechanism Analysis and Stabilization Control of "Dual-High" Power Systems[J]. Journal of Northeast Electric Power University, 2024, 44(4): 2-3.
[13] 秦颖婕，刘宇，陈德扬，等.海上风电集群经HVDC并网的优化控制策略[J].东北电力技术，2026，47（2）：39-43. QIN Yingjie, LIU Yu, CHEN Deyang, et al. Optimized Control Strategy for Offshore Wind Power Cluster Grid-Connection via HVDC[J]. Northeast Electric Power Technology, 2026, 47(2): 39-43.
[14] 黄辉兴.构网型储能技术与工程应用研究[J].东北电力技术， 2025，46（11）：28-32. HUANG Huixing. Research on Grid-Forming Energy Storage Technology and Engineering Application[J]. Northeast Electric Power Technology, 2025, 46(11): 28-32.
[15] 童雪芳，谭波，李冠华.典型直流接地极材料在海洋环境中的腐蚀特性[J].电瓷避雷器，2022（6）：123-129. DONG Xuefang, TAN Bo, LI Guanhua. Corrosion characteristics of typical DC grounding electrode materials in marine environment[J]. Insulators and Surge Arresters, 2022(6): 123- 129.
[16] 文习山，郭婷婷，吴小东，等.基于边界元法的江河湖泊对直流接地极设计的影响[J].高电压技术，2016，42（12）：3868-3874. WEN Xishan, GUO Tingting, WU Xiaodong, et al. The impact of rivers and lakes on the design of direct current grounding electrodes based on the boundary element method [J]. High Voltage Engineering, 2016, 42(12): 3868-3874.
[17] Lu H, Chen J, Tan B, et al. Measurement and Safety Criteria of Step Voltage of High Voltage Direct Current Grounding Electrode[J]. IEEE Transactions on Power Delivery, 2021(99): 1.
[18] 曹方圆，白锋.直流接地极电流干扰下土壤结构对管道泄漏电流分布影响[J].南方电网技术，2021，15（10）：3-11. CAO Fangyuan, BAI Feng. Effect of soil structure on pipeline leakage current distribution under DC grounding electrode current interference[J]. Southern Power System Technology, 2021, 15(10): 3-11.
[19] Luo H, Li W, Han J, et al. Simulation Analysis of Earth Surface Potential Distribution in ±800 kV HVDC Ring Grounding Electrode[C]//201914th IEEE Conference on Industrial Electronics and Applications(ICIEA). Xi'an: IEEE, 2019.
[20] 文贤馗，何明君，周科，等.基于改进灰色模型的光伏发电预测输入数据计算方法[J].电力大数据，2024，27（7）：15-21. WEN Xiankui, HE Mingjun, ZHOU Ke, et al. Calculation Method of Input Data for Photovoltaic Power Generation Forecasting Based on Improved Grey Model[J]. Power Systems and Big Data, 2024, 27(7): 15-21.
[21] W. Li, L. Lei, X. Wang, et al. Simulation researth on current diffusion feature of HVDC vertical grounding electrode[C]// IEEE International Conference on High Voltage Engineering and Application. Beijing: IEEE, 2020.
[22] 李亚.特高压直流输电接地极电流场分布特性研究[D].包头：内蒙古科技大学，2019.
[23] Fan S, Guanghu X, Yuan Z, et al. The basic law and influencing factor of DC bias distribution in AC power which is near the grounding electrode of 800 kV HVDC[C]//International Confer- ence on Power System Technology. Chengdu: IEEE, 2014.
[24] 张志勇，刘固望，谭捍东，等.考虑激电效应和电磁效应的复电阻率法二维数值模拟研究[J].中国矿业，2018，27（4）：153-158，162. ZHANG Zhiyong, LIU Guwang, TAN Handong, et al. Two-dimensional numerical simulation study of complex resistivity method considering excitation and electromagnetic effects[J]. China Mining Magazine, 2018, 27(4): 153-158, 162.
[25] Li W, Pan Z, Lu H, et al. Influence of deep earth resistivity on HVDC ground-return currents distribution[J]. IEEE Transactions on Power Delivery, 2016, 32(4): 1844-1851.
[26] 王雪茜.高压直流输电线路波形特征故障区域判别技术[J].云南电力技术，2025，53（3）：85-89. WANG Xueqian. Fault Area Discrimination Technology Based on Waveform Characteristics for HVDC Transmission Lines [J]. Yunnan Electric Power, 2025, 53(3): 85-89.
[27] 刘鸣亚，谭波，张康伟，等.土壤特性对双圆环直流接地极跨步电压分布的影响[J].电瓷避雷器，2019（6）：55-60. LIU Mingya, TAN Bo, ZHANG Kangwei, et al. The impact of soil characteristics on the distribution of step voltage of double-ring DC grounding electrodes[J]. Insulators and Surge Arresters, 2019(6): 55-60.
[28] 胡上茂，刘刚，廖民传，等.高压直流接地极单极运行对埋地管道电位的干扰与影响[J].南方电网技术，2023，17（9）：104-111. HU Shangmao, LIU Gang, LIAO Minchuan, et al. Interference and influence of unipolar operation of HVDC grounding electrode on the potential of buried pipelines[J]. Southern Power System Technology, 2023, 17(9): 104-111.
[29] 王世信，雷顺广，张新，等.混合双端高压直流输电线路保护[J]. 云南电力技术，2025，53（3）：96-100. WANG Shixin, LEI Shunguang, ZHANG Xin, et al. Protection of Hybrid Two-Terminal HVDC Transmission Lines[J]. Yunnan Electric Power, 2025, 53(3): 96-100.
[30] 耿山，樊艳芳，巩晓玲，等.特高压直流接地极周边地表电位分布计算与敏感性参数研究[J].高压电器，2019，55（3）：163-169. GENG Shan, FAN Yanfang, GONG Xiaoling, et al. Research on the Calculation and Sensitivity Parameters of Surface Potential Distribution Around HVDC Grounding Electrode[J]. High Voltage Apparatus, 2019, 55(3): 163-169.
[31] 马成廉，王乐天，李波，等.基于ANSYS的陕北换流站直流接地极地电位分布计算[J].中国电力，2018，51（5）：52-60. MA Chenglian, WANG Letian, LI Bo, et al. Calculation of ground potential distribution of DC grounding electrode in north Shaanxi converter station based on ANSYS[J]. Electric Power, 2018, 51(5): 52-60.
[32] 王鸿，罗昳昀，江娜，等.高压直流接地极电流场研究现状综述[J].电气开关，2013，51（5）：13-15，28. WANG Hong, LUO Yiyun, JIANG Na, et al. Overview of the current research status on high-voltage direct current grounding elec-trode current field[J]. Electric Switchgear, 2013, 51(5): 13-15, 28.
[33] 黄亚峰，王浩天，朱登宝，等.基于零序电流特性的中性点灵活接地系统的故障选线方法[J].东北电力大学学报，2023，43（3）：16- 22，71. HUANG Yafeng, WANG Haotian, ZHU Dengbao, et al. Fault Line Selection Method for Neutral Flexible Grounding System Based on Zero Sequence Current Characteristics[J]. Journal of Northeast Electric Power University, 2023, 43(3): 16-22, 71.
[34] DAGDEVIR T, OZCEYHAN V. Optimization of process parame- ters in terms of stabilization and thermal conductivity on water based TiO2 nanofluid preparation by using Taguchi method and grey relation analysis[J]. International Communications in Heat and Mass Transfer, 2021, 120: 105047.
[35] NAQIUDDIN N H, SAW L H, YEW M C, et al. Numerical investigation for optimizing segmented micro-channel heat sink by Taguchi grey method[J]. Applied Energy, 2018, 222: 437-445.
基本信息:
DOI：10.19929/j.cnki.nmgdljs.2026.0020
引用信息:
[1]贾慧杰, 王英杰, 车传强,等.基于灰色关联法的直流接地极电场特性影响规律及参数灵敏性分析[J],2026,44(2):48-55.DOI:10.19929/j.cnki.nmgdljs.2026.0020.
基金信息:
内蒙古电力（集团）有限责任公司科技项目“基于脉冲涡流无损探测的接地网缺陷及质量评估系统”（2024-4-3）