Time-domain mixed-hybrid finite element method for analyzing ion-flow field of HVDC and HVAC transmission lines

被引：0
作者：
Tian Y. [1 ,2 ]
Huang X.-B. [1 ]
Tian W.-C. [2 ]
Cao W. [1 ]
Zhu Y.-C. [1 ]
Zhao L. [1 ]
Zhang Y. [1 ]
机构：
[1] Department of Electronics and Information, Xi'an Polytechnic University, Xi'an
[2] Department of Electrical and Mechanical Engineering, Xidian University, Xi'an
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2019年 / 23卷 / 10期
关键词：
Corona; Electric field distribution; Hybrid transmission line; Ion-flow field; Time-domain mixed-hybrid finite element method;
D O I：
10.15938/j.emc.2019.10.010
中图分类号：
学科分类号：
摘要：
Erecting high-voltage direct current (HVDC) and HV alternating current (HVAC) transmission lines in the same corridor, as a promising way of substantially increasing transmission capacities in the corridor and saving the land resources, is being developed in a more cost-effective manner. When the two transmission lines are close to each other, the electromagnetic environment is different from what will be if the AC and DC lines are operated independently, so it is necessary to analyze the hybrid field. In the analysis of the hybrid transmission lines ion-flow field, the time-domain mixed-hybrid finite element method was applied to the numerical analysis of the hybrid ion-flow field. Additionally, the interactions between the HVDC and HVAC lines in the corona electric field were considered. Compared with measured results and previous methods, the presented method is more suitable for the simulation of the hybrid ion-flow field problem from the HVAC and HVDC transmission lines. The results show that wiggle-free numerical solution significantly reduced the computational burden and the calculation precision is increased greatly. The ground-level electric field and ion current density of the hybrid lines for the different configurations were calculated and the general rules of the electric field distribution of the hybrid transmission lines were summarized by comparing these calculated results. Finally, the ground-level electric field and ion current density of two typical hybrid transmission lines in the same corridor were analyzed, providing reference for the engineering design. © 2019, Harbin University of Science and Technology Publication. All right reserved.
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页码：85 / 94
页数：9
相关论文
共 20 条
  • [1] Yang Y., Lu J., Ju Y., Study on the hybrid electric field over the ground surface under AC lines and ±800 kV DC lines in the same corridor, Power System Technology, 15, (2009)
  • [2] Zhou X., Lu T., Cui X., Et al., Corona loss analysis of high voltage DC transmission lines in close proximity of high voltage AC transmission line, Proceedings of the CSEE, 31, 31, (2011)
  • [3] Zhao Y., Zhang W., Hybrid electric field analysis of HVAC and HVDC transmission lines in one corridor, High Voltage Engineering, 40, 3, (2014)
  • [4] Sun S., Lu T., Cui X., The characteristics of hybrid electric field under the DC wire parallel with the AC wire, Transactions of China Electrotechnical Society, 32, 8, (2017)
  • [5] Zhou H., Sun L., Bao W., Et al., Three-dimensional electric field's parallel calculation around UHV transmission line, Electric Machines and Control, 17, 12, (2013)
  • [6] Li B., Qiao J., Zou J., Et al., Analysis of configuration and corridor width of HVAC and HVDC transmission lines on the same tower, Power System Technology, 41, 1, (2017)
  • [7] Li Y., Wang Y., Zou A., Et al., Power-frequency electric field calculation of extra high voltage transmission lines by means of the mixed method combining MOM and SCM, Electric Machines and Control, 21, 8, (2017)
  • [8] Clairmont B.A., Johnson G.B., Zaffanella L.E., Et al., The effect of HVAC-HVDC line separation in a hybrid corridor, IEEE Transactions on Power Delivery, 4, 2, (1989)
  • [9] Zhao T., Sebo S.A., Kasten D.G., Calculation of single phase AC and monopolar DC hybrid corona effects, IEEE Transactions on Power Delivery, 11, 3, (1996)
  • [10] Zhao T., Illan J., Cohol J.M., Et al., Design, construction and utilization of a new reduced-scale model for the study of hybrid (AC and DC) line corona, Transmission and Distribution Conference, Proceedings of IEEE Power Engineering Society, pp. 239-245, (1994)
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