Adaptive soil model for real‐time thermal rating of underground power cables

Diaz‐Aguiló, Marc; León, Francisco de

doi:10.1049/iet-smt.2014.0269

Cited by 18 publications

(18 citation statements)

References 24 publications

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“…6 that the lifetime reduction of the cable is very low. This is directly correlated with the cable conductor temperature and adopted parameters [4,7]. Fig.…”

Section: Case Studymentioning

confidence: 95%

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Towards a Hybrid Power Cable Health Index for Medium Voltage Power Cable Condition Monitoring

Aizpurua

Stewart

McArthur

et al. 2019

2019 IEEE Electrical Insulation Conference (EIC)

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Power cables are critical assets for the safe and cost effective operation of the power grid. However, the health assessment of cables is intricate due to its various degradation mechanisms. Motivated by the generation of a consistent cable health index metric, this paper presents a novel hybrid cable health index approach which combines data-driven and physicsof-failure degradation models. Data-driven models are focused on partial discharge tests and physics-of-failure models are focused on cable lifetime estimation based on thermal and electrical stresses. The combination of these models offers an enhanced cable health indicator which supports engineers in the power cable maintenance related decision-making processes.

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“…6 that the lifetime reduction of the cable is very low. This is directly correlated with the cable conductor temperature and adopted parameters [4,7]. Fig.…”

Section: Case Studymentioning

confidence: 95%

“…The case study is focused on the health state analysis of a cable with physical and experimental parameters taken from [4,7]. For the estimation of the lifetime reduction according to thermal stress, a constant ambient temperature of 26 ο C and a constant load of 1 kA are considered.…”

Section: Case Studymentioning

confidence: 99%

Towards a Hybrid Power Cable Health Index for Medium Voltage Power Cable Condition Monitoring

Aizpurua

Stewart

McArthur

et al. 2019

2019 IEEE Electrical Insulation Conference (EIC)

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show abstract

“…This is very important for electric utilities because it directly impacts their asset management strategy. Real-time thermal rating (RTTR) systems need of a very accurate modeling not only of the cable but also of the surroundings to deliver accurate and trustworthy results [17]. The majority of the approaches used M. Diaz-Aguiló and F. de León are with the Department of Electrical and Computer Engineering, New York University, Five Metrotech Center, Brooklyn, NY, 11201 (e-mails: marc.diaz.aguilo@gmail.com, fdeleon@nyu.edu).…”

Section: Introductionmentioning

confidence: 99%

“…This would certainly avoid dangerous situations affecting the stability and resiliency of the power grid. The model of this paper can be easily integrated into the available software and models for Real Time Thermal Rating systems that benefit of state space forms in order to use available parameter estimation techniques or recursive filtering [8], [17], [23].…”

Section: Introductionmentioning

confidence: 99%

Introducing Mutual Heating Effects in the Ladder-Type Soil Model for the Dynamic Thermal Rating of Underground Cables

Diaz‐Aguiló¹,

León²

2015

IEEE Trans. Power Delivery

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The proper modeling of the transient thermal behavior of mutual heating effects between underground power cables is very important for the rating of transmission and distribution cables. The IEC standards propose an accurate model based on exponential integrals that it can be difficult to implement in basic electrical software. The model is not consistent with the layered modeling of the cable thermal resistances. In this paper a simple and easy-to-use alternative model is presented. It consists of injecting the correct current at the right position of the RC circuit representing the soil. The new model can reproduce accurately the full physics of the transient phenomenon and is consistent with the modeling of the cable used in the IEC standards themselves. The new model is tested and validated against numerous finite elements simulations for realistic cable installations.

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“…This paper used COMSOL [11], which is a powerful multi-physics simulation software, to model a shielded cable, as shown in Figure 2. 0.5 on the material and design of the cable and of the surrounding conditions [18].…”

Section: Ampacity Calculationmentioning

confidence: 99%

Configuration Optimization of Cables in Ductbank Based on Their Ampacity

Sun¹,

Makram²

2018

JPEE

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Electrical power companies are using more underground cables rather than overhead lines to distribute power to their customers. In practice, cables are generally installed in some compact ductbanks. Since the cost of underground cables is very expensive, using the entire space of a ductbank is extremely important. But such usage is limited due to the overheating of cables. Overheating is generally caused by overload, which means the carrying current exceeds the ampacity of a cable. The ampacity of a cable depends on not only the material and design of a cable but also the distance between different cables. Thus the configuration of cables determines the total ampacity value and the potential use of a ductbank. In this paper, the best configuration based on ampacity is achieved for a three-row, five-column ductbank that is buried at a depth of one meter below the earth's surface. Both balanced and unbalanced scenarios are considered, and all cables have two available types to be selected.

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Adaptive soil model for real‐time thermal rating of underground power cables

Cited by 18 publications

References 24 publications

Towards a Hybrid Power Cable Health Index for Medium Voltage Power Cable Condition Monitoring

Towards a Hybrid Power Cable Health Index for Medium Voltage Power Cable Condition Monitoring

Introducing Mutual Heating Effects in the Ladder-Type Soil Model for the Dynamic Thermal Rating of Underground Cables

Configuration Optimization of Cables in Ductbank Based on Their Ampacity

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