Impact of wind forecasting and probabilistic line rating on reserve requirement

Banerjee, Binayak; Jayaweera, Dilan; Islam, Syed

doi:10.1109/powercon.2012.6401442

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…model [15] and 2) those obtained from the optimization problem with linearized approaches. It can be observed that the temperature errors are negligible and they are in the conservative region 8 (the conductor temperatures calculated with the realistic model are lower than the approximated ones).…”

Section: ) Comparison Of Piecewise Linearization Versus Linearizatiomentioning

confidence: 92%

“…With respect to these profiles, the temperature profiles of the lines 3 and 5 are in average 3 warmer and the temperature profile for lines 4 and 6 are in 5 It should be noted that the subproblems are QCPs. The resistive heat losses are the quadratic constraints [8]. In some cases, optimization solvers may fail to compute the duals of the QCP problem.…”

Section: A Description Of the Test System And Weather Parametersmentioning

confidence: 99%

“…Concerning this specific subject, in [7] the incorporation of the DLR has been considered in the planning stage to evaluate the increase of the potential level of wind power integration. In the system operation, the utilization of the DLR has studied in order to allow a reduction in the required spinning reserve [8], reducing wind power spillage [8], [9], and avoiding the re-dispatch of generating units and load shedding [7]. The improvement provided by the available transfer capacity (ATC) considering DLR instead of SLR is discussed in [10].…”

Section: Introductionmentioning

confidence: 99%

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Security constrained unit commitment with dynamic thermal line rating

2016

2016 IEEE Power and Energy Society General Meeting (PESGM)

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Abstract-The integration of the dynamic line rating (DLR) of overhead transmission lines (OTLs) in power systems security constrained unit commitment (SCUC) potentially enhances the overall system security as well as its technical/economic performances. This paper proposes a scalable and computationally efficient approach aimed at integrating the DLR in SCUC problem. The paper analyzes the case of the SCUC with AC load flow constraints. The AC-optimal power flow (AC-OPF) is linearized and incorporated into the problem. The proposed multi-period formulation takes into account a realistic model to represent the different terms appearing in the Heat-Balance Equation (HBE) of the OTL conductors. In order to include the HBE in the OPF, a relaxation is proposed for the heat gain associated to resistive losses while the inclusion of linear approximations are investigated for both convection and radiation heat losses. A decomposition process relying on the Benders decomposition is used in order to breakdown the problem and incorporate a set of contingencies representing both generators and line outages. The effects of different linearization, as well as time step discretization of HBE, are investigated. The scalability of the proposed method is verified using IEEE 118-bus test system.

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Section: ) Comparison Of Piecewise Linearization Versus Linearizatiomentioning

confidence: 92%

Section: A Description Of the Test System And Weather Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Security constrained unit commitment with dynamic thermal line rating

2016

2016 IEEE Power and Energy Society General Meeting (PESGM)

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“…There is also a group of studies conducted by a Banerjee et al in [50][51][52][53][54][55][56] aiming to enhance the wind power integration and improve power system operation during wind power integration for transmission level either from a deterministic, probabilistic or stochastic point of view. In [50], the objective of the stochastic optimization problem was to minimize a combined cost function composed of conventional generation costs, wind and reserve costs, DLR-based temporary line capacity relaxation cost and congestion cost components.…”

Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

“…On the other hand, the probabilistic approach implemented in [55] considered the minimization of conventional generation and wind power feed-in tariff based dual components based total costs resulting in 60% reduction in reserve requirements and 49% reduction in operational costs with DLR implementation during tests conducted using a sample 3-bus test system. A similar probabilistic approach was implemented also in [56] enabling a reduction in 12% in line overload and preventing wind curtailment with the DLR implementation.…”

Section: Solely Dlr Based Operational Flexibilitymentioning

confidence: 99%

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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Dynamic line rating and optimal transmission switching for maximizing renewable energy sources injection with voltage stability constraint

Wu,

Wang,

et al. 2025

Applied Energy

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Impact of wind forecasting and probabilistic line rating on reserve requirement

Cited by 10 publications

References 20 publications

Security constrained unit commitment with dynamic thermal line rating

Security constrained unit commitment with dynamic thermal line rating

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

Dynamic line rating and optimal transmission switching for maximizing renewable energy sources injection with voltage stability constraint

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