考虑气象时空分布特性的输电线路模型和分析方法

doi:10.19595/j.cnki.1000-6753.tces.181914

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Abstract The meteorological data along the overhead line vary in time and space, which has an important influence on the operating state of the system. Based on the thermal balance equation of CIGRE standard, this paper iteratively solves the conductor temperature of transmission lines. Through the real weather data, the seasonal variation of the meteorological data of a 220 kV line in Shandong area and the spatial variation of meteorological data along a 500 kV line in Dongbei area are analyzed by examples. Considering the time distribution characteristics of meteorological parameters, a seasonal model is given. Considering the space distribution, the mean value model, the weight average value model and the line segmentation model are established. Further, based on the relationship between conductor temperature and line parameters, the system power flow model considering the time and space distribution of meteorological data and the decomposition coordination solution are established. Through the power flow calculation and network transmission capability analysis, it shows that the conductor temperature of the overhead line has significant time and space variation characteristics. Considering the time and space distribution characteristics of meteorological parameters can effectively improve the accuracy of power grid state analysis.

Key words： Transmission line meteorological data conductor temperature the time and space distribution power flow PV curve

Received: 21 December 2018 Published: 12 February 2020

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TM751

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	Wang Yanling
	Mo Yang
	Han Xueshan
	Meng Xiangxing
	Niu Zhiqiang

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Wang Yanling,Mo Yang,Han Xueshan等. Transmission Line Model and Analysis Method Considering the Time and Space Distribution Characteristics of Meteorology[J]. Transactions of China Electrotechnical Society, 2020, 35(3): 636-645.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181914 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I3/636

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