Open AccessIncreasing the ampacity of underground cable lines by optimising the thermal environment and design parameters for cable crossings
Author(s) -
Perović Bojan,
Klimenta Dardan,
Tasić Dragan,
Raičević Nebojša,
Milovanović Miloš,
Tomović Milan,
Vukašinović Jovan
Publication year - 2022
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/gtd2.12448
Subject(s) - ampacity , particle swarm optimization , electrical conductor , direct buried cable , thermal , optimal design , electric power transmission , computer science , structural engineering , engineering , electrical engineering , cable gland , cable theory , algorithm , cable harness , physics , machine learning , meteorology
The problem of optimising the thermal environment and design parameters of underground cable lines for cable crossings with the aim of increasing the ampacities of cables is considered in this paper. Particle swarm optimisation (PSO) algorithm, formulated as a continuous non‐linear optimisation problem with constraints, for solving this hot spot problem is applied. It is found, using the PSO algorithm, that there are a suitable size of cable bedding and an arrangement of cables within that bedding, which can eliminate or significantly mitigate the hot spot effect without the use of any additional cooling equipment. In this manner, the ampacities of both crossing cable lines increase by about 15% on average with respect to the case of a similar crossing with installation parameters commonly used. In addition, it is shown how the cross‐sectional areas of the conductors and metal screens and the metal screen bonding methods affect the optimal solution.