Calculation model and experimental verification of equivalent ice thickness on overhead lines with tangent tower considering ice and wind loads

Dong, Bingbing; Jiang, Xingliang; Xiang, Ze

doi:10.1016/j.coldregions.2022.103588

Cited by 10 publications

(9 citation statements)

References 10 publications

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“…Existing typical calculation methods for 110 kV transmission lines with tangent towers are used as a comparison [15][16][17].…”

Section: Comparison Of Simulated Results and Calculated Resultsmentioning

confidence: 99%

“…is typically focused [16]. A certain value is assumed to be the angle between the wind direction and the conductor in the same span [17]. Therefore, only the steady-state icing of the conductor is needed to be analysed.…”

Section: Force Analysis For Insulator Of 10 Kv Transmission Lines Wit...mentioning

confidence: 99%

“…Jiang et al proposed a prediction model of EIT which is calculated by tension, inclination angle and wind deflection angle [16]. Dong et al considered the characteristics of ice and wind load before developing the EIT calculation model [17].…”

Section: Introductionmentioning

confidence: 99%

“…Dong et al. considered the characteristics of ice and wind load before developing the EIT calculation model [17].…”

Section: Introductionmentioning

confidence: 99%

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Experimental study on ice monitoring method for 10 kV transmission line with tangent tower in alpine landform

Yang,

Chen,

Hao

et al. 2023

High Voltage

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Ice monitoring methods were applied for 110 kV and above transmission lines with tangent towers. However, the change in the vertical span is not considered, and a significant difference lies in the tower‐conductor structure of 10 kV transmission lines. For this reason, a proposal is made about the ice monitoring method for the 10 kV transmission line with tangent tower in alpine landform, which includes the ice monitoring system based on pressure measurement and corresponding equivalent ice thickness calculating methods. Different methods calculate the vertical span under different height difference coefficients. A finite element simulation model and a simulated ice load experiment system are established based on real conductors and insulators. Experiments and simulations under four simulated terrains are conducted within 2.5–20 mm ice thickness range. The comparison is made between this method and the method without considering the change in vertical span. The results show that the two methods are consistent and the relative errors are lower than ±4% in simulation and ±10% in experiment when the height difference coefficient is 0. When it is not 0, the relative errors of this method fall between +0.38% and +6.78% in simulation and −6.40% to +6.60% in experiment, while the relative errors of the method without considering the change in vertical span ranges between −11.13% and −20.23% in simulation and −11.65% to −23.20% in experiment.

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“…Existing typical calculation methods for 110 kV transmission lines with tangent towers are used as a comparison [15][16][17].…”

Section: Comparison Of Simulated Results and Calculated Resultsmentioning

confidence: 99%

Section: Force Analysis For Insulator Of 10 Kv Transmission Lines Wit...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Dong et al. considered the characteristics of ice and wind load before developing the EIT calculation model [17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental study on ice monitoring method for 10 kV transmission line with tangent tower in alpine landform

Yang,

Chen,

Hao

et al. 2023

High Voltage

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show abstract

“…According to variation law of parameters of tilt and tension of the insulators strings, Dong et al. developed a model for predicting equivalent ice thickness with different insulators strings arrangements considering ice and wind loads [67]. Image monitoring: Zhong et al.…”

Section: Monitoring Methods Of Icing Disaster In Gridmentioning

confidence: 99%

Development and prospect of monitoring and prevention methods of icing disaster in China power grid

Dong

Jiang

Yin

2022

IET Generation Trans & Dist

Self Cite

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Icing disaster is one of the most serious threats to power grid security in China. This article provides a brief glance of current China's monitoring and prevention methods of icing disaster (MPI) development status. Despite a late start, China's research and development on MPI have made outstanding achievements, including formation mechanism causing ice disaster, key technologies and characteristics, and anti/de-icing approaches development and application. It is apparent that Chinese scientists and engineers confronted the worldwide problem of anti/de-icing, and put forward a comprehensive solution, which plays a more critical role in icing disaster prevention and reduction of power grid during the past 15 years. The article states that the anti/de-icing devices have been applied successively to severe icing issues. These achievements are leading the world in the development and application of MPI. However, it is only at the extreme ice and snow conditions that can test and verify whether prevention methods are comprehensive and perfect or not. And the authors discovered the application limitations in the existing achievements. The article also discusses the overall development trends of MPI in the areas of key technological and technical breakthroughs and application scenarios etc. These discussions serve as references for MPI's future technological advancement and its ever-expanding applications.

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Icing detection method of 500 kV overhead ground wire with tangent tower under special terrain based on vertical tension measurement technology

Yang

Chen

Hao

et al. 2023

Cold Regions Science and Technology

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Calculation model and experimental verification of equivalent ice thickness on overhead lines with tangent tower considering ice and wind loads

Cited by 10 publications

References 10 publications

Experimental study on ice monitoring method for 10 kV transmission line with tangent tower in alpine landform

Experimental study on ice monitoring method for 10 kV transmission line with tangent tower in alpine landform

Development and prospect of monitoring and prevention methods of icing disaster in China power grid

Icing detection method of 500 kV overhead ground wire with tangent tower under special terrain based on vertical tension measurement technology

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