A framework for application of dynamic line rating to aluminum conductor steel reinforced cables based on mechanical strength and durability

Morozovska, Kateryna; Naim, Wadih; Viafora, Nicola; Shayesteh, Ebrahim; Hilber, Patrik

doi:10.1016/j.ijepes.2019.105491

Cited by 9 publications

(10 citation statements)

References 11 publications

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“…The study in [45] also considered the comparison of the results from a deterministic to non-parametric distributions-based consideration of the DLR and wind power uncertainties. From a different point of view, the study in [46] specifically focused on the impact of DLR implementation on wear and tear, and accordingly the mechanical stress and reliability of aluminium conductor steel reinforced (ACSR) cables based OHLs. The mentioned study in [46] dealt with a conventional generators-based power production cost minimization oriented DC optimal power flow problem for a system including wind power and compared different DLR schemes.…”

Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

“…From a different point of view, the study in [46] specifically focused on the impact of DLR implementation on wear and tear, and accordingly the mechanical stress and reliability of aluminium conductor steel reinforced (ACSR) cables based OHLs. The mentioned study in [46] dealt with a conventional generators-based power production cost minimization oriented DC optimal power flow problem for a system including wind power and compared different DLR schemes. The mentioned different schemes in [46] were based on time granularity or frequency of line capacity change (1-h, 2-h, 3-h and 4-h time steps) from the point of view of varying line capacity limit cycles' impacts on ACSR conductors' durability as well as wind curtailment and operational cost.…”

Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

“…The mentioned study in [46] dealt with a conventional generators-based power production cost minimization oriented DC optimal power flow problem for a system including wind power and compared different DLR schemes. The mentioned different schemes in [46] were based on time granularity or frequency of line capacity change (1-h, 2-h, 3-h and 4-h time steps) from the point of view of varying line capacity limit cycles' impacts on ACSR conductors' durability as well as wind curtailment and operational cost. The case study in [46] conducted on IEEE RTS 24-bus test system modified by a portion of Swedish Power Market data resulted in a slightly over 1% reduction of operational costs and nearly 6.5% of wind power curtailment for all DLR implementation frequencies.…”

Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

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A Comprehensive Overview of Dynamic Line Rating Combined with Other Flexibility Options from an Operational Point of View

et al. 2020

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The need for flexibility in power system operation gradually increases regarding more renewable energy integration, load growth, etc., and the system operators already invest in this manner to enhance the power system operation. Besides, the power system has thermally sensitive assets such as lines, transformers, etc. that are normally operated under highly conservative static ratings. There is a growing trend in this regard to use the actual capacity of such assets dynamically under varying operating conditions leading to a dynamic thermal rating concept which is referred as dynamic line rating (DLR) approach specifically for lines. This study provides a comprehensive overview of existing perspectives on DLR and combination with other flexibility options from an operational point of view. Apart from the existing review studies more focused on implementation category of DLR concept, the concentration on more operational stage from the power system operation point of view leads the difference of this study compared to the mentioned studies. A categorization of the DLR implementation for either being sole or combined usage as a flexibility option is further realized. Besides, a geographically categorized analysis on existing practical evidence on DLR concept and implementations is also presented in this study.

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Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

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A Comprehensive Overview of Dynamic Line Rating Combined with Other Flexibility Options from an Operational Point of View

et al. 2020

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“…According to the IRENA report [1], in most cases, even relatively low increases of the thermal rating (e.g., from 5% to 20%) with respect to the steady-state thermal rating could solve many operational issues. On the transmission network side, DTR can also be used for estimating the actual thermal state of the conductors by determining the electrical parameters of the power lines [2] or the mechanical characteristics of steel-reinforced aluminium overhead lines [3]. On the distribution network side, DTR may have an impact on optimal resource scheduling in reconfigurable microgrids [4].…”

Section: Introductionmentioning

confidence: 99%

Concepts and Methods to Assess the Dynamic Thermal Rating of Underground Power Cables

et al. 2021

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With the increase in the electrical load and the progressive introduction of power generation from intermittent renewable energy sources, the power line operating conditions are approaching the thermal limits. The definition of thermal limits variable in time has been addressed under the concept of dynamic thermal rating (DTR), with which it is possible to provide a more detailed assessment of the line rating and exploit the electrical system more flexibly. Most of the literature on DTR has addressed overhead lines exposed to different weather conditions. The interest in the dynamic thermal rating of power cables is increasing, considering the evolution of computational methods and advanced systems for cable monitoring. This paper contains an overview of the concepts and methods referring to dynamic cable rating (DCR). Starting from the analytical formulations developed many years ago for determining the power cable rating in steady-state conditions, also reported in International Standards, this paper considers the improvements of these formulations proposed during the years. These improvements are leading to include more specific details in the models used for DCR analysis and the computational methods used to assess the power cable’s thermal conditions buried in soil. This paper is focused on highlighting the path from the initial theories and models to the latest literature contributions. Attention is paid to thermal modelling with different levels of detail, applications of 2D and 3D solvers and simplified models, and their validation based on experimental measurements. A salient point of the overview is considering the DCR impact on reliability aspects, risk estimation, real-time calculations, forecasting, and planning with different time horizons.

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“…INTRODUCTION D YNAMIC line rating is a method of smarter line operation, which uses information on real-time weather parameters to unlock hidden line capacity. This unlocked capacity allows to remove network contingencies and achieve more efficient power flow [1] [2] [3] [4]. There are several studies which have explored the possibility of using dynamic line rating for power dispatch optimization in transmission and sub-transmission grids [1] [5] [6] [7].…”

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confidence: 99%

Including Dynamic Line Rating Into the Optimal Planning of Distributed Energy Resources

Morozovska

Heleno

Meza

et al. 2021

IEEE Trans. Smart Grid

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A framework for application of dynamic line rating to aluminum conductor steel reinforced cables based on mechanical strength and durability

Cited by 9 publications

References 11 publications

A Comprehensive Overview of Dynamic Line Rating Combined with Other Flexibility Options from an Operational Point of View

A Comprehensive Overview of Dynamic Line Rating Combined with Other Flexibility Options from an Operational Point of View

Concepts and Methods to Assess the Dynamic Thermal Rating of Underground Power Cables

Including Dynamic Line Rating Into the Optimal Planning of Distributed Energy Resources

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