Dynamic Thermal Rating of Transmission Line Based on Environmental Parameter Estimation

Zidan Sun, Zhijie Yan, Likai Liang, Ran Wei and Wei Wang
Volume: 15, No: 2, Page: 386 ~ 398, Year: 2019
10.3745/JIPS.04.0110
Keywords: Dynamic Thermal Rating, Environmental Parameters, Ordinary Kriging Interpolation Method, Transmission Line
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Abstract
The transmission capacity of transmission lines is affected by environmental parameters such as ambient temperature, wind speed, wind direction and so on. The environmental parameters can be measured by the installed measuring devices. However, it is impossible to install the environmental measuring devices throughout the line, especially considering economic cost of power grid. Taking into account the limited number of measuring devices and the distribution characteristics of environment parameters and transmission lines, this paper first studies the environmental parameter estimating method of inverse distance weighted interpolation and ordinary Kriging interpolation. Dynamic thermal rating of transmission lines based on IEEE standard and CIGRE standard thermal equivalent equation is researched and the key parameters that affect the load capacity of overhead lines is identified. Finally, the distributed thermal rating of transmission line is realized by using the data obtained from China meteorological data network. The cost of the environmental measurement device is reduced, and the accuracy of dynamic rating is improved.

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Cite this article
IEEE Style
Z. Sun, Z. Yan, L. Liang, R. Wei and W. Wang, "Dynamic Thermal Rating of Transmission Line Based on Environmental Parameter Estimation," Journal of Information Processing Systems, vol. 15, no. 2, pp. 386~398, 2019. DOI: 10.3745/JIPS.04.0110.

ACM Style
Zidan Sun, Zhijie Yan, Likai Liang, Ran Wei, and Wei Wang. 2019. Dynamic Thermal Rating of Transmission Line Based on Environmental Parameter Estimation, Journal of Information Processing Systems, 15, 2, (2019), 386~398. DOI: 10.3745/JIPS.04.0110.