Assessment of the resilience of the electrical distribution grid: e-distribuzione approach

Amicarelli, Elvira; Ferri, Lorenzo; Masi, Massimiliano; Suich, A.; Valtorta, Giovanni

doi:10.23919/aeit.2018.8577322

Cited by 9 publications

(7 citation statements)

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“…According to the review of study, it can be seen that in some papers related to resilience [4][5][6][7][8][9][10][11][12][13][14], the effect of automation implementation in distribution networks, especially in distribution grid switches, has not been investigated. Some other studies [15][16][17][18][19][20][21][22][23][24][25][26][27] have considered the effect of automation of distribution system switches in solving the problem of assessing the resilience of the distribution network.…”

Section: Discussion and Contributionsmentioning

confidence: 99%

“…Also, this study focuses on two strategies based on demand side management and substation protection to enhance the network resilience. In [5], the Italian regulatory organization has forced electricity distribution and transmission companies to provide practical solutions and extend models to improve the resilience of the electric grid against extreme snowstorms, windstorms, tree fall and heat waves. In [6], methods and technologies including increased cabling rate, introduction of microgrids and energy storages, increased utilization of emergency power systems, and smart grid technologies are presented to improve the resilience of the distribution network during different phases of a destructive weather event.…”

Section: Related Workmentioning

confidence: 99%

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Improving the resilience of the distribution system using the automation of network switches

Hassanzadeh

Hajiabadi

Samadi

et al. 2023

The Journal of Engineering

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In studies of power systems, reliability issues are not fully responsive to the assessment of the distribution network in the face of natural disasters, and studies called the resilience of distribution network are needed. Distribution network resilience studies examine the impact of large incidents with high damaging power but low repetition on the power grid, which cause a lot of damage and costs. In this study, the effect of distribution network switches automation on improving the resilience of distribution networks in the event of large faults and failures has been investigated. In this approach, first the location of the incident and the probability of the percentage of destruction of the incident site are predicted, then in different scenarios, the numbers, locations, and types of switches (remote control or manoeuvre switches) are defined and in the next step, the system reliability and resilience indicators are evaluated, and then, the system resilience diagram is examined in each scenario, and at each stage, the cost-benefit analysis is performed to evaluate the cost function. Here, the cost includes the cost of purchasing and installing switches, and benefits include costs of reliability and resilience, which ultimately significantly reduce the objective function. The proposed method is implemented on a part of the standard RBTS system.

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Section: Discussion and Contributionsmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Improving the resilience of the distribution system using the automation of network switches

Hassanzadeh

Hajiabadi

Samadi

et al. 2023

The Journal of Engineering

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“…The approach in [18] is probabilistic, based on the calculation of failure probability of MV power lines and the related damage, measured as the number of LV customers disconnected in a given RT assigned to the MV line for each specific threat. A more detailed description of the ARERA approach is given in [19][20][21][22][23] for different extreme natural events, as well as the methodologies developed by DSOs for assessing RTs of each asset of the MV distribution network involved.…”

Section: Introductionmentioning

confidence: 99%

Resilience Assessment in Distribution Grids: A Complete Simulation Model

et al. 2021

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For several years, the increase of extreme meteorological events due to climate change, especially in unusual areas, has focused authorities and stakeholders attention on electric power systems' resilience. In this context, the authors have developed a simulation model for managing the resilience of electricity distribution grids with respect to the main threats to which these infrastructures may be exposed (i.e., ice sleeves, heat waves, water bombs, floods, tree falls). The simulator identifies the more vulnerable network assets by means of probabilistic indexes, thus suggesting the best corrective actions to be implemented for resilience improvement. The fulfillment of grid constraints, i.e., loading limits for branches and voltage limits for buses, under actual operating conditions, is taken into account. Load scenarios extracted from available measurements are evaluated by means of load flow analyses in order to choose, among the best solutions identified, those compatible with the constraints. The proposed tool can assist Distribution System Operators (DSOs) in drawing up the Action Plan to improve, on one hand, the resilience of the network and, on the other hand, to remove any possible limitation for the adoption of the best solutions to ensure maximum operational continuity during extreme weather events.

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“…The methodology approach has its starting point from the collaboration and information exchanges among the main Italian stakeholders, which assess the resilience of an electric network as requested by Italian Authority ARERA in Reference [17] and already reported in References [7,9,18]. These references, as well as the present work, aim at assessing resilience considering a risk index defined as follows: R = D TR (1) In Equation (1), D is defined as the magnitude of the considered damage, for instance, the number of users disconnected or the total duration of disconnections.…”

Section: Introductionmentioning

confidence: 99%

“…Since Indices (2)- (7) do not depend on a specific threat, they allow to identify remedial actions able to improve the resilience of the network; moreover, the performance of different distribution networks against threats may be compared.…”

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confidence: 99%

Assessment and Possible Solution to Increase Resilience: Flooding Threats in Terni Distribution Grid

et al. 2019

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In recent years, because of increasing frequency and magnitude of extreme weather events, the main stakeholders of electric power systems are emphasizing issues about resilience. Whenever networks are designed and development plans are drawn, this new feature must be assessed and implemented. In this paper, a procedure to evaluate the resilience of a distribution network against flooding threats is presented. Starting from a detailed analysis about the resilience of each asset of the grid, the procedure implements the exploration of the network in order to evaluate the impact of interruptions (e.g., in terms of number of disconnected users) produced by the specific threat; then, it calculates the resilience indices of the whole system. The procedure is applied with respect to the flooding threats, on a real distribution network in the center of Italy (i.e., the distribution network of Terni). Referring to this case study, the proposed method suggests countermeasures able to reduce the impact of flooding events and evaluates their benefits. Results indicate that, at the present time, the network is adequately resilient with respect to flooding events, as demonstrated by the index values. However, the remedial actions identified by the procedure are also able to improve the resilience of the network and, in addition, they are in agreement with the development plan already established by the distribution system operator (DSO).

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Assessment of the resilience of the electrical distribution grid: e-distribuzione approach

Cited by 9 publications

References 0 publications

Improving the resilience of the distribution system using the automation of network switches

Improving the resilience of the distribution system using the automation of network switches

Resilience Assessment in Distribution Grids: A Complete Simulation Model

Assessment and Possible Solution to Increase Resilience: Flooding Threats in Terni Distribution Grid

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