Study on the Influence of Meteorological Conditions on Transmission Line Parameters

Huang, Ling; Niu, Shengsuo; Yueyan, Hu; Zhang, Jingping

doi:10.1088/1755-1315/218/1/012103

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…The height of the phase conductors is influenced by various parameters, such as temperature, mechanical characteristics of the conductor, the length of the span between two adjacent towers, etc [31]. The influence of the conductor's temperature on the change of its height is significant.…”

Section: Methodology For Evaluation Of the Long-term Exposure To The ...mentioning

confidence: 99%

Evaluation of the Long-Term Exposure to the Magnetic Fields Generated by Overhead Transmission Lines Using Artificial Neural Networks – A Case Study

Alihodžić,

Mujezinović,

Turajlić

et al. 2024

B&H Electrical Engineering

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The methodology for the evaluation of long-term exposure to the overhead line magnetic field is presented, in this paper. The developed methodology is based on the ambient temperature measurements and phase conductors’ height measurements to find a linear regression model to determine phase conductors’ height changes for different ambient temperatures. Based on the overhead transmission line geometry, and datasets about historical overhead line phase current intensity values and ambient temperatures long-term magnetic field exposure can be determined. For magnetic flux density determination, a method based on artificial neural networks is used. The methodology is applied to the case study of overhead line that connect substations Sarajevo 10 and Sarajevo 20. A period of one year is analyzed and magnetic flux density values are determined. The obtained results indicate that during the analyzed period for significant amounts of time magnetic flux density values surpass the recommended values for long-term exposure.

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Section: Methodology For Evaluation Of the Long-term Exposure To The ...mentioning

confidence: 99%

Evaluation of the Long-Term Exposure to the Magnetic Fields Generated by Overhead Transmission Lines Using Artificial Neural Networks – A Case Study

Alihodžić,

Mujezinović,

Turajlić

et al. 2024

B&H Electrical Engineering

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“…In addition, ultraviolet exposure is also a slow aging factor resulting in the deteriorated superhydrophobic properties of coatings [110]. Moreover, contamination deposits are involved in pollutants and sand dust, as reflected in the pol- Nevertheless, the unique operating environments of conductors [104] also include wind velocities [94,[105][106][107], wind direction [106,107], high temperatures, ultraviolet exposure, contamination deposits, corrosion, mechanical wear and corona loss. Generally, wind speed is inversely proportional to temperature, as reflected in the icing thickness of a bare conductor [105], even resulting in the line galloping [106,107].…”

Section: Icing Formsmentioning

confidence: 99%

A Review on Superhydrophobic Surface with Anti-Icing Properties in Overhead Transmission Lines

Bai

et al. 2023

Coatings

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The icing on overhead transmission lines is one of the largest threats to the safe operation of electric power systems. Compared with other security accidents in the electric industry, a sudden ice disaster could cause the most serious losses to electric power grids. Among the numerous de-icing and anti-icing techniques for application, direct current ice-melting and mechanical de-icing schemes require power cuts and other restrictive conditions. Superhydrophobic coating technology has been widely focused for good anti-icing properties, low cost and wide application range. However, the special structure of curved transmission lines, complicated service environments, and variated electric performance could significantly limit the application of superhydrophobic anti-icing coatings on overhead transmission lines. In particular, superhydrophobic surfaces can be achieved by combining the rough micro-nano structure and modification agents with low surface energy. Compared with superhydrophobic coatings, superhydrophobic surfaces will not increase the weight of the substrate and have good durability and stability in maintaining the robust structure to repeatedly resist aging, abrasion, corrosion and corona damages, etc. Therefore, this review summarizes the theoretical basis of anti-icing behavior and mechanisms, influencing factors of anti-icing properties, potential techniques of superhydrophobic surfaces on transmission lines, and, finally, presents future development challenges and prospects of superhydrophobic surfaces in the anti-icing protection of overhead transmission lines.

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Real-Time Measurement of AC Line Parameters Based on Digital Twins

Xunting,

Bin,

Jinjin

et al. 2023

2023 2nd Asian Conference on Frontiers of Power and Energy (ACFPE)

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Study on the Influence of Meteorological Conditions on Transmission Line Parameters

Cited by 4 publications

References 2 publications

Evaluation of the Long-Term Exposure to the Magnetic Fields Generated by Overhead Transmission Lines Using Artificial Neural Networks – A Case Study

Evaluation of the Long-Term Exposure to the Magnetic Fields Generated by Overhead Transmission Lines Using Artificial Neural Networks – A Case Study

A Review on Superhydrophobic Surface with Anti-Icing Properties in Overhead Transmission Lines

Real-Time Measurement of AC Line Parameters Based on Digital Twins

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