Keywords
overhead transmission line; dynamic capacity increasing; equivalent heat transfer equipment; environmental measurement decoupling model; ampacity assessment
Abstract
The dynamic capacity increasing technique exploits the potential power transmission capacity of overhead conductors by assessing ampacity in real‑time. However, the existing dynamic capacity increasing models face challenges such as the requirement for a large number of sensors or difficulties in the installation and maintenance of sensors. To address these issues, a dynamic environmental measurement decoupling model is proposed. Firstly, the model establishes the associated equations between transient temperature data of aluminum spheres and environmental variables. Subsequently the solution accuracy of each environmental variable from the perspective of sensitivity is analyzed, and the solution methods of environmental variables with different sensitivities are given. Finally, experiments are carried out to validate the accuracy of the environmental measurement decoupling model. The experimental results show that the calculation error of the model is less than 4% compared with the calculation results of IEEE Std 738‑2012.
DOI
10.19781/j.issn.1673-9140.2023.06.022
First Page
206
Last Page
214
Recommended Citation
CHEN, Chunhong; XU, Zhixian; ZENG, Yanqi; PENG, Ruidong; PENG, Xiangyang; and WANG, Rui
(2024)
"An environmental measurement decoupling model for dynamic capacity increasing of overhead conductors and experimental validation,"
Journal of Electric Power Science and Technology: Vol. 38:
Iss.
6, Article 22.
DOI: 10.19781/j.issn.1673-9140.2023.06.022
Available at:
https://jepst.researchcommons.org/journal/vol38/iss6/22