The meteorological parameters along the overhead line change significantly, which have an effect on the surrounding electromagnetic environment. The analysis method of meteorological parameters impacting the electromagnetic environment is presented in this paper. Firstly, the conductor temperature is solved iteratively by the heat balance equation. Secondly, the power flow model involving the conductor temperature is established based on the relationship between line parameters and conductor temperature. Finally, the electromagnetic environment surrounding the line is analyzed based on the changes of line voltage and current. In the case study, the electromagnetic environment of the IEEE 5-bus system under the three cases is analyzed and compared. It is proved that the changes of meteorological parameters along the line have an important impact on the surrounding electromagnetic environment. The calculation of electromagnetic environment considering the changes of meteorological parameters is more accurate.
2. Okrainskaya, I. S., A. I. Sidorov, and S. P. Gladyshev, "Electromagnetic environment under over head power transmission lines 110-500 kV," International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion, 796-801, 2012.
doi:10.1109/SPEEDAM.2012.6264574
3. Zhao, L. X., J. Y. Lu, and G. F. Wu, "Measurement and analysis on electromagnetic environment of 1000 kV UHV AC transmission line," IEEE Transactions on Industry Applications, 1-4, 2012.
4. Sibanda, M., R. R. Van, and N. Parus, "Overview of the electromagnetic environment in the vicinity of HVDC transmission lines," Proceedings of the 10th Industrial and Commercial Use of Energy Conference, 1-7, 2013.
5. Wang, Y. L., Z. J. Yan, L. K. Liang, X. S. Han, and X. F. Zhou, "Dynamic rating analysis of overhead line loadability driven by meteorological data," Power System Technology, Vol. 42, No. 1, 315-321, 2018.
6. Zhang, H., X. S. Han, and Y. L. Wang, "Analysis on current carrying capacity of overhead lines being operated," Power System Technology, Vol. 32, No. 14, 31-35, 2008.
7. Douglass, D. A., "Weather-dependent versus static thermal line ratings," IEEE Transactions on Power Delivery, Vol. 3, No. 2, 742-753, 1998.
doi:10.1109/61.4313
8. Heckenbergerova, J., P. Musilek, and K. Filimonenkov, "Assessment of seasonal static thermal ratings of overhead transmission conductors," IEEE Power and Energy Society General Meeting, Vol. 1, No. 8, 2011.
9. Kim, S. D. and M. M. Morcos, "An application of dynamic thermal line rating control system to up-rate the ampacity of overhead transmission lines," IEEE Transactions on Power Delivery, Vol. 28, No. 2, 1231-1232, 2013.
doi:10.1109/TPWRD.2012.2234940
10. Mo, Y., X. F. Zhou, Y. L. Wang, and L. K. Liang, "Study on operating status of overhead transmission lines based on wind speed variation," Progress In Electromagnetics Research M, Vol. 60, 111-120, 2017.
doi:10.2528/PIERM17072605
11. Wang, Y. L., Y. Mo, M. Q. Wang, X. F. Zhou, L. K. Liang, and P. Zhang, "Impact of conductor temperature time-space variation on the power system operational state," Energies, Vol. 11, No. 4, 1-15, 2018.
12. Wang, Y. F., H.Wang, H. Xue, C. Yang, and T. Yan, "Research on the electromagnetic environment of 110 kV six-circuit transmission line on the same tower," IEEE PES Innovative Smart Grid Technologies, 1-5, 2012.
13. CIGRE, "Thermal behavior of overhead conductors,", CIGRE WG12, ELECTRA(144), 1992.
14. Grainger, J. J. and W. D. Stevenson, Power System Analysis, McGraw-Hill College, 1994.
15. Rakpenthai, C. and S. Uatrongjit, "Power system state and transmission line conductor temperature estimation," IEEE Transactions Power Systems, Vol. 32, No. 3, 1818-1827, 2017.
doi:10.1109/TPWRS.2016.2601072
16. Huang, D. C., J. J. Ruan, and F. Huo, "Study on the electromagnetic environment of 1000 kV AC double-circuit transmission lines in China," IEEE/PES Power Systems Conference and Exposition, 1-7, 2009.
17. Huang, W. G., "Study on conductor configuration of 500 kV Chang-Fang compact line," IEEE Transactions on Power Delivery, Vol. 18, No. 3, 1002-1008, 2003.
doi:10.1109/TPWRD.2003.813828