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Theoretical study and simulation analysis of distributed vibration de-icing technology for medium voltage overhead lines

Xingping He

Xingping He

Zhaotong Power Supply Bureau of Yunnan Power Grid Co., LtdZhaotong, China
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He, Xingping
, 
Yuan Ma

Yuan Ma

Zhaotong Power Supply Bureau of Yunnan Power Grid Co., LtdZhaotong, China
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Ma, Yuan
, 
Ke Wang

Ke Wang

Electric Power Research Institute of Yunnan Power Grid Co., LtdKunming, China
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Wang, Ke
 oraz 
Chengmeng Liu

Chengmeng Liu

Zhaotong Yongshan Power Supply Bureau of Yunnan Power Grid Co., LtdZhaotong, China
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Liu, Chengmeng
  
19 mar 2025
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Data publikacji: 19 mar 2025
Otrzymano: 31 paź 2024
Przyjęty: 16 lut 2025
DOI: https://doi.org/10.2478/amns-2025-0465
Słowa kluczowe
© 2025 Xingping He et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

The relationship between the Angle and the excitation force
The relationship between the Angle and the excitation force

Figure 2.

The force and torque of the two lines under the ice
The force and torque of the two lines under the ice

Figure 3.

A wire point 1 simulation
A wire point 1 simulation

Figure 4.

A wire point 2 simulation
A wire point 2 simulation

Figure 5.

B wire point 3 simulation
B wire point 3 simulation

Figure 6.

B wire point 4 simulation
B wire point 4 simulation

Figure 7.

Simulation results of self-parameter
Simulation results of self-parameter

Figure 8.

Simulation results of the equivalent rain
Simulation results of the equivalent rain

Figure 9.

The difference of the way the conductor is off the ice jump height
The difference of the way the conductor is off the ice jump height

Mechanical parameters of the conductor

Parameter LGJ-70/10 LGJ-400/65
(aluminum/steel) root number/root 6/1 26/7
(aluminum/steel) diameter/mm 3.80/3.80 4.12/3.45
Outer diameter d/mm 11.50 29.00

The transmission wire removes the ice rate in different loading modes

Loading mode Ice rate(%)
First gear Second gear Third gear Fourth gear Fifth gear
Impact load 23.6 11.6 67.8 17.4 32.6
Continuous shock load 29.5 18.5 74.6 27.5 40.7

Physical parameters of the conductor

Material Elastic modulus/pa Poisson ratio Density/(g*cm−3)
steel 2.06×1011 0.3 7.9
aluminium 7.17×1010 0.33 2.7
rime 3×108 0.3 0.9

Modal frequency of iced LGJ-70/10

Cylinder mode frequency/Hz Elliptical pattern frequency/Hz(a=D) Elliptical pattern frequency/Hz(a=1.5D) The modal frequency of the fan/Hz(a=D) The modal frequency of the fan/Hz(a=1.5D) Vibration characteristic
814 956 925 887 865 Horizontal first order vibration type, z direction
815 9510 945 894 882 Horizontal first order vibration, y direction
2566 4192 3985 3191 3198 Reverse stage 1
2175 2568 2459 2371 2286 Horizontal stage 2, z direction
2184 2584 2556 2390 2311 Horizontal stage 2, y direction
Język:
Angielski
Częstotliwość wydawania:
1 razy w roku
Dziedziny czasopisma:
Nauki biologiczne, Nauki biologiczne, inne, Matematyka, Matematyka stosowana, Matematyka ogólna, Fizyka, Fizyka, inne
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