LAPSE:2020.0717
Published Article
LAPSE:2020.0717
Impact of Conductor Temperature Time⁻Space Variation on the Power System Operational State
Yanling Wang, Yang Mo, Mingqiang Wang, Xiaofeng Zhou, Likai Liang, Pei Zhang
June 23, 2020
The conductor temperature of an overhead transmission line varies with time and space, which has an important impact on the system operation. In this paper, the conductor temperature is solved iteratively by the CIGRE heat balance equation. The time⁻space variation of conductor temperature of a 220-kV transmission line is analyzed using real meteorological data from Weihai. Considering the temporal distribution characteristics, the seasonal model of the conductor temperature is given. Considering the spatial distribution, the mean value model, the weight average model, and the segmentation model are established. The system power flow involving the conductor temperature is established based on the relationship between conductor temperature and transmission line parameters. Through the calculation of power flow and the analysis of the maximum power transmission capability, the accuracy of the segmentation model is verified. The results show that the conductor temperature of overhead lines has obvious time⁻space variation characteristics. It is necessary to consider the time⁻space variation when analyzing the operation state of power systems.
Keywords
conductor temperature, maximum transmission power, power flow, time–space variation, transmission line
Suggested Citation
Wang Y, Mo Y, Wang M, Zhou X, Liang L, Zhang P. Impact of Conductor Temperature Time⁻Space Variation on the Power System Operational State. (2020). LAPSE:2020.0717
Author Affiliations
Wang Y: School of Mechanical, Electrical and Information Engineering, Shandong University (Weihai), Weihai 264209, China
Mo Y: School of Mechanical, Electrical and Information Engineering, Shandong University (Weihai), Weihai 264209, China
Wang M: School of Electrical Engineering, Shandong University, Jinan 250061, China
Zhou X: Department of Mechanical-Electrical Engineering, Weihai Vocational College, Weihai 264210, China
Liang L: School of Mechanical, Electrical and Information Engineering, Shandong University (Weihai), Weihai 264209, China
Zhang P: School of Mechanical, Electrical and Information Engineering, Shandong University (Weihai), Weihai 264209, China
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Journal Name
Energies
Volume
11
Issue
4
Article Number
E760
Year
2018
Publication Date
2018-03-27
Published Version
ISSN
1996-1073
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PII: en11040760, Publication Type: Journal Article
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LAPSE:2020.0717
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doi:10.3390/en11040760
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Jun 23, 2020
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Jun 23, 2020
 
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Calvin Tsay
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