一种基于力学分析的覆冰厚度计算方法

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Abstract In order to reduce the calculation error of icing thickness of transmission line, a calculation method of icing thickness based on mechanical analysis is proposed. Considering the variation of vertical specific load, the method uses the monitoring data of tension and inclination angle of insulator string as input, and calculates the icing thickness according to the state equation of overhead transmission line and the balance equation of tower mechanics. In order to reduce the calculation deviation caused by the stability of monitoring data, the historical monitoring data without icing are used to modify the specific load of the conductor, and then the ice thickness of the conductor is calculated. Finally, the actual monitoring data of a certain line are used to verify the results. Compared with the traditional method of geometric decomposition, the calculation error of ice thickness proposed in this paper is small, which meets the engineering requirements.

Key words： transmission line ice thickness measurement vertical specific load mechanical analysis

Received: 20 September 2019 Published: 16 April 2020

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	Articles by authors
	Tang Jianbin
	Lin Ruiquan

Cite this article:

Tang Jianbin,Lin Ruiquan. A method for calculating ice thickness based on mechanical analysis[J]. Electrical Engineering, 2020, 21(4): 20-24.

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http://dqjs.cesmedia.cn/EN/Y2020/V21/I4/20

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