volume | PIER Journals

Abstract

The haze-prone areas are usually places with limited transmission line corridors and large power loads. The performance of transmission lines is under threat of haze. The haze particulates around the transmission lines would be charged and affect the electric field near high voltage direct current (HVDC) transmission lines. Accoring to the influence mechanism of haze on ionized field, the electric perfromance of HVDC transmission lines under haze weather is dicussed. In the paper, an improved meshless local Petrov-Galerkin method (MLPG) is proposed to investigate the distribution of ionized electric field, and example of an actual transmission line is studied to verify the validation of the proposed method at first. It is proved that the proposed method agrees well with the measurements. Then the ionized field distribution under different haze weather levels is discussed, as well as the influenced factor. Results indicate that the ionized electric field and ion current density on the ground would increase under haze weather, but with the similar trends to good weather condition. Meanwhile, the haze weather levels have greater influence on the ionized electric field than ion current density, where the increase of corona and space charge are the main reasons.

1. Lu, T., H. Feng, X. Cui, et al. "Analysis of the ionized field under HVDC transmission lines in the presence of wind based on upstream finite element method," IEEE Transactions on Magnetics, Vol. 46, No. 8, 2939-2942, 2011.
doi:10.1109/TMAG.2010.2044149 Google Scholar

2. Su, H., Z. Jia, Z. Sun, et al. "Field and laboratory tests of insulator flashovers under conditions of light ice accumulation and contamination," IEEE Transactions on Dielectrics & Electrical Insulation, Vol. 19, No. 5, 1681-1689, 2012.
doi:10.1109/TDEI.2012.6311516 Google Scholar

3. Fu, J., Y. Hui, W. Chen, et al. "The research on influence law of different environment on the ion flow field of HVDC transmission line and insulator contamination," Industrial Electronics and Applications, 310-314, IEEE, 2016. Google Scholar

4. Zhang, Z., D. Zhang, X. Jiang, et al. "Study on natural contamination performance of typical types of insulators," IEEE Transactions on Dielectrics & Electrical Insulation, Vol. 21, No. 4, 1901-1909, 2014.
doi:10.1109/TDEI.2014.004343 Google Scholar

5. Maruvada, P. S., "Electric field and ion current environment of HVDC transmission lines: Comparison of calculations and measurements," IEEE Trans. Power Delivery, Vol. 27, No. 1, 401-410, 2012.
doi:10.1109/TPWRD.2011.2172003 Google Scholar

6. Comber, M. G. and G. B. Johnson, "HVDC field and ion effects research at project UHV: Results of electric field and ion current measurement," IEEE Transactions on Power Apparatus and Systems, Vol. 101, No. 7, 1998-2006, 1982.
doi:10.1109/TPAS.1982.317447 Google Scholar

7. Johnson, G. B., "Electric fields and ion currents of a ±400 kV HVDC test line," IEEE Transactions on Power Apparatus and Systems, Vol. 102, No. 8, 2559-2568, 1983.
doi:10.1109/TPAS.1983.317775 Google Scholar

8. Fan, Y., Z. H. Liu, et al. "Calculation of ionized field of HVDC transmission lines by the meshless method," IEEE Transactions on Magnetics, Vol. 50, No. 7, 1-6, 2014. Google Scholar

9. Lu, F., Q. Z. Ye, F. C. Lin, et al. "Effects of raindrops on ion flow field under HVDC transmission lines," Proceedings of the CSEE, Vol. 30, No. 7, 125-130, 2010. Google Scholar

10. Zhao, Y. and W. Zhang, "Effects of fog on ion flow field under HVDC transmission lines," Proceedings of the CSEE, Vol. 33, No. 13, 194-199, 2013. Google Scholar

11. Fonseca Alexandre, R., C. Correa Bruno, J. Silva Elson, et al. "Improving the mixed formulation for meshless local Petrov-Galerkin method," IEEE Transactions on Magnetics, Vol. 46, No. 08, 2907-2910, 2010.
doi:10.1109/TMAG.2010.2043513 Google Scholar

12. Qiao, J., J. Zou, J. S. Yuan, et al. "A new finite difference based approach for calculating ion flow field of HVDC transmission lines," Transactions of China Electrotechnical Society, Vol. 30, No. 6, 185-191, 2015. Google Scholar

13. Huang, G., J. Ruan, Z. Du, and C. Zhao, "Highly stable upwind FEM for solving ionized field of HVDC transmission line," IEEE Transactions on Magnetics, Vol. 48, No. 2, 719-722, 2012.
doi:10.1109/TMAG.2011.2174203 Google Scholar

14. Li, H. L., "Research on the concentration and size distribution of indoor suspended particulates matters,", Huazhong University of Science and Technology, 2009. Google Scholar

15. Niu, H. and T. Xu, "The relevance between dramatic declines of air gap breakdown voltage and fog-haze weather," TENCON 2015 — 2015 IEEE Region 10 Conference, IEEE, 2016. Google Scholar

Dr. Bing Gao

Dr. Fan Yang

Dr. Haizhou Qian

Dr. Min Liu

Dr. Chunli Li

Dr. Chao Liu