Estimated Time of Restoration (ETR) Guidance for Electric Distribution Networks

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
David Wanik ◽  
Emmanouil Anagnostou ◽  
Brian Hartman ◽  
Thomas Layton
Keyword(s):  
Distribution Networks ◽  
Hurricane Sandy ◽  
Timely Manner ◽  
The Public ◽  
Service Restoration ◽  
Electric Distribution ◽  
Past Experiences ◽  
Number Of Customers ◽  
Weather Impacts ◽  
Obligation To Inform

Abstract Electric distribution utilities have an obligation to inform the public and government regulators about when they expect to complete service restoration after a major storm. In this study, we explore methods for calculating the estimated time of restoration (ETR) from weather impacts, defined as the time it will take for 99.5% of customers to be restored. Actual data from Storm Irene (2011), the October Nor’easter (2011) and Hurricane Sandy (2012) within the Eversource Energy-Connecticut service territory were used to calibrate and test the methods; data used included predicted outages, the peak number of customers affected, a ratio of how many outages a restoration crew can repair per day, and the count of crews working per day. Data known before a storm strikes (such as predicted outages and available crews) can be used to calculate ETR and support pre-storm allocation of crews and resources, while data available immediately after the storm passes (such as customers affected) can be used as motivation for securing or releasing crews to complete the restoration in a timely manner. Used together, the methods presented in this paper will help utilities provide a reasonable, data-driven ETR without relying solely on qualitative past experiences or instinct.

scholarly journals Service Restoring Reconfiguration for Distribution NetworksConsidering Uncertainty in Available Information

2021 ◽  
Vol 11 (9) ◽  
pp. 4169
Author(s):  
Hirotaka Takano ◽  
Junichi Murata ◽  
Kazuki Morishita ◽  
Hiroshi Asano
Keyword(s):  
Power Distribution ◽  
Solution Method ◽  
Optimization Problems ◽  
Problem Formulation ◽  
Distribution Networks ◽  
Accurate Information ◽  
Power Distribution Networks ◽  
Combinatorial Optimization Problems ◽  
Service Restoration ◽  
Available Information

The recent growth in the penetration of photovoltaic generation systems (PVs) has brought new difficulties in the operating and planning of electric power distribution networks. This is because operators of the distribution networks normally cannot monitor or control the output of the PVs, which introduces additional uncertainty into the available information that operations must rely on. This paper focuses on the service restoration of the distribution networks, and the authors propose a problem framework and its solution method that finds the optimal restoration configuration under extensive PV installation. The service restoration problems have been formulated as combinatorial optimization problems. They do, however, require accurate information on load sections, which is impractical in distribution networks with extensively installed PVs. A combined framework of robust optimization and two-stage stochastic programming adopted in the proposed problem formulation enables us to deal with the PV-originated uncertainty using readily available information only. In addition, this problem framework can be treated by a traditional solution method with slight extensions. The validity of the authors’ proposal is verified through numerical simulations on a real-scale distribution network model and includes a discussion of their results.

Evolving non-dominated solutions in multiobjective service restoration for automated distribution networks

2001 ◽  
Vol 59 (3) ◽  
pp. 185-195 ◽  
Author(s):  
Antonino Augugliaro ◽  
Luigi Dusonchet ◽  
Eleonora Riva Sanseverino
Keyword(s):  
Distribution Networks ◽  
Service Restoration

A New Approach to Reconfiguration of Electric Distribution Networks

2021 ◽  
Author(s):  
Majid. S. M. Al-Hafidh ◽  
Omar Sh. Al-Yozbaky ◽  
Azhear. S. Al-Fahadi
Keyword(s):  
Distribution Networks ◽  
New Approach ◽  
Electric Distribution

Nutzen von Erfahrungswissen in Krisen.

2021 ◽  
Vol 66 (1) ◽  
pp. 119-139
Author(s):  
Janina Barth ◽  
Andrea H. Schneider-Braunberger
Keyword(s):  
Public Discourse ◽  
Press Coverage ◽  
Political Issues ◽  
The Public ◽  
Business Reporting ◽  
Award Winning ◽  
The Media ◽  
German Newspaper ◽  
Past Experiences ◽  
Historical References

Abstract It appears to be almost self-evident that most people look towards past experiences for guidance during times of crisis. We would like to consider the empirical evidence for this assumption by analysing the public discourse regarding the reactions to crises, which includes general reporting, statements from politicians or discussions in the media. The outbreak of the Corona pandemic in Germany, starting in March 2020, opens the possibility to collect several preliminary findings by analysing relevant press coverage in the newspapers. Articles from different sections of the Frankfurter Allgemeine Zeitung (F.A.Z.) and from the Handelsblatt were evaluated. As our main interest focuses on economic historical (not e. g. medical historical) research questions, we chose the F.A.Z. First, because its business reporting is important within the German newspaper environment in general. Second, because its reporting on the Corona pandemic was award-winning. Additionally, we focused on the Handelsblatt because the newspaper provides press coverage explicitly on financial, business, and political issues – all subjects directly affected by the Corona crisis. The analysis concluded that there was a rise in articles with historical references in general while the number of articles linked to businesses did not increase at the same time which can be linked to the absence of expert business history opinions on offer.

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