Study of Temperature Field and Ampacity of 110kV AC Submarine Cables under Different Laying Conditions

This article presents an analysis of the reliability of the power grid using data on the failure rate of the medium voltage (MV) power grid from the last five years. The analysis of the state of the power grid was based on the data provided by the grid operator. The purpose of this article is to analyze the reliability assessment of the medium voltage (MV) power connections using various analytical methods, a simulation model and reliability indicators. The analysis was performed based on the defined categories of power outages in terms of their duration. This made it possible to determine the energy quality indicators in a selected power grid. Then, a more complex analysis was carried out to assess the convergence of the applied analytical models of reliability assessment with the actual results obtained for the power grid. Moreover, using ANSYS Multiphysics, a numerical model of the cable head was developed to analyze the processes taking place in this element of the power grid for various exploitation cases.

show abstract

“…For this purpose, Equations ( 15) and ( 16) were used [31]. As part of this analysis, the following assumptions were made.…”

Section: Simulating the Failure Rate Of A Selected MV Grid Elementmentioning

confidence: 99%

Reliability Assessment of MV Power Connections

Hoduń

Borecki

2021

Energies

View full text Add to dashboard Cite

show abstract

“…In order to perform a wider range of analyses within the mathematical model, it was assumed that the thermal field analysis would be based on, inter alia, Equations (1)-(3) [30].…”

Section: Simulation Setupmentioning

confidence: 99%

A Proposed New Approach for the Assessment of Selected Operating Conditions of the High Voltage Cable Line

Borecki

2020

Energies

View full text Add to dashboard Cite

Calculation models for the selection of cable lines used for expansion and modernization in the energy system and energy transmission planning are recognized tools supporting decision-making in both the energy sector and energy policy. At the same time, the above calculation models contain a large number of correction factors taking into account the temperature of the external environment at various points, the mutual influence of which is not taken into account. This means limitations to today’s common approaches to solutions, especially with regard to the required safety buffer for cable line selection. To meet this challenge, this article presents a parameter that takes into account the change and difference in temperature at various points in the external environment in the analyzed cable line systems. The purpose of this paper was to develop a new approach to the selection of a cable line in order to minimize failure during operation. For this purpose, possible temperature cases that may occur during line operation in different countries and at different rated voltages have been identified. Simulation models for individual cable line layouts were developed and the extreme temperature cases of the line operation for the maximum negative and positive temperature difference between the cable core and the external environment were considered in detail. The development of the curve of the change of the correction factor for the difference in the operating temperature of the cable line will allow for a more precise selection of the cable line parameters and the shortening of the current calculation model in terms of cable selection. In addition, this article presents a comparison of the change in the value of the correction factor from the change in temperature of a selected phase of a cable line system.

show abstract

Transmission Ampacity Improvement of EHV Submarine Cable

Zhang,

Ma,

et al. 2023

Lecture Notes in Electrical Engineering

View full text Add to dashboard Cite

Study of Temperature Field and Ampacity of 110kV AC Submarine Cables under Different Laying Conditions

Cited by 3 publications

References 6 publications

Reliability Assessment of MV Power Connections

Reliability Assessment of MV Power Connections

A Proposed New Approach for the Assessment of Selected Operating Conditions of the High Voltage Cable Line

Transmission Ampacity Improvement of EHV Submarine Cable

Contact Info

Product

Resources

About