Analysis on Ampacity of Overhead Transmission Lines Being Operated

Zhijie Yan, Yanling Wang and Likai Liang
Volume: 13, No: 5, Page: 1358 ~ 1371, Year: 2017
10.3745/JIPS.04.0044
Keywords: Ampacity, Dynamic Thermal Rating, Rating Scales, Risk Level, Transmission Line
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Abstract
Dynamic thermal rating (DTR) system is an effective method to improve the capacity of existing overhead line. According to the methodology based on CIGRE (International Council on Large Electric systems) standard, ampacity values under steady-state heating balance can be calculated from ambient environmental conditions. In this study, simulation analysis of relations between parameters and ampacity is described as functional dependence, which can provide an effective basis for the design and research of overhead transmission lines. The simulation of ampacity variation in different rating scales is described in this paper, which are determined from real-time meteorological data and conductor state parameters. To test the performance of DTR in different rating scales, capacity improvement and risk level are presented. And the experimental results show that the capacity of transmission line by using DTR has significant improvement, with low probability of risk. The information of this study has an important reference value to the operation management of power grid

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Cite this article
IEEE Style
Zhijie Yan, Yanling Wang, and Likai Liang, "Analysis on Ampacity of Overhead Transmission Lines Being Operated," Journal of Information Processing Systems, vol. 13, no. 5, pp. 1358~1371, 2017. DOI: 10.3745/JIPS.04.0044.

ACM Style
Zhijie Yan, Yanling Wang, and Likai Liang, "Analysis on Ampacity of Overhead Transmission Lines Being Operated," Journal of Information Processing Systems, 13, 5, (2017), 1358~1371. DOI: 10.3745/JIPS.04.0044.