scispace - formally typeset
Search or ask a question
Topic

Blackout

About: Blackout is a research topic. Over the lifetime, 2088 publications have been published within this topic receiving 30433 citations.


Papers
More filters
01 Jan 1970
TL;DR: Electron removal from reentry flow fields by dissociative attachment for blackout alleviation is described in this article, where the authors also discuss the effects of the dissociation on the system.
Abstract: Electron removal from reentry flow fields by dissociative attachment for blackout alleviation

6 citations

Proceedings ArticleDOI
12 Oct 2020
TL;DR: The review of some of the blackout events in selected African countries aims to fill the missing knowledge gap in this area resulting from poor data management system which has made access to such information to be quite a daunting task.
Abstract: The subtle but yet impactful effect of climate change has led to extreme weather conditions which has culminated to many natural disasters. Such events, depending on its severity would usually trigger a partial or complete power system blackout with significant impact on social, political and economic activities. Restoring the system back to normal is usually achieved either using the top-down or bottom-up approach which is described as black start. Emerging research has indicated that distributed energy resources (DERs) and remote controllable switches (RCSs) can be deployed for black start restoration (BSR) for distribution systems and microgrids. With these developments comes the opportunity to develop a restoration strategy which would further enhance the resilience of the power system. In view of this, an analysis of some recent power system blackout events in Africa was carried out with the aim of proposing robust black start restoration strategy that would enhance operational resilience. Besides this, the review of some of the blackout events in selected African countries aims to fill the missing knowledge gap in this area resulting from poor data management system which has made access to such information to be quite a daunting task.

6 citations

Proceedings ArticleDOI
01 Oct 2008
TL;DR: In this paper, an artificial neural network (ANN) was used to assist the dispatcher in decision-making in static voltage stability to map instantaneously a contingency to a set of controllers where the types, locations, and amount of switching are induced.
Abstract: The steady-state operation of maintaining voltage stability is done by switching various controllers scattered all over the network When a contingency occurs, whether forced or unforced, the dispatcher is to alleviate the problem in a minimum time, cost, and effort Persistent problem may lead to blackout The dispatcher is to have the appropriate switching of controllers in terms of type, location, and size to remove the contingency and maintain voltage stability Wrong switching may worsen the problem and that may lead to blackout This work proposed and used an artificial neural network (ANN) to assist the dispatcher in the decision making The ANN is used in the static voltage stability to map instantaneously a contingency to a set of controllers where the types, locations, and amount of switching are induced The work proposes the type and architecture of the ANN to be used and the training data size

6 citations

Journal Article
TL;DR: In this paper, an evaluation index system for the power system emergency response to large-scale blackouts is proposed, which is based on the characteristics of large scale blackouts, the general theory on emergency response, and the systems theory and methodology.
Abstract: The evaluation index system for the power system emergency response to large-scale blackouts is proposed.The index system is based on the characteristics of large-scale blackouts,the general theory on emergency response,and the systems theory and methodology.The proposed index system consists of four first-grade indices,twelve second-grade indices and thirty-eight index attributes.Fuzzy analytic hierarchy process is used for the comprehensively quantitative analysis of multiple indices;firstly,the analytic hierarchy process is used to determine the weight of each index,and then fuzzy comprehensive evaluation is applied hierarchically.Finally,an example is given which details the emergency response capability evaluation of a Chinese provincial power grid company with satisfactory analysis results.It proves the effectiveness and practicality of the index system and its comprehensive evaluation method.The study will provide effective reference and decision support for the emergency response to large-scale blackouts in electric power sector.

6 citations

Proceedings ArticleDOI
07 Jul 2011
TL;DR: In this paper, a doubly-fed induction generator (DFIG) is applied to a gas engine cogeneration system to operate during a blackout as an emergency power supply.
Abstract: A doubly-fed induction generator (DFIG), which is one of the variable speed generator, applied to a gas engine cogeneration system has been investigated. To operate during a blackout as an emergency power supply is one of important roles for the gas engine cogeneration system. However, the DFIG requires the initial excitation for startup during a blackout because DFIG has no excitation source. In this paper, the excitation method to generate a rated voltage at the primary side during a blackout, which is called “blackout start” has been proposed. In addition, a stand-alone operation following the blackout start has been investigated using both computer simulation and experiments with a gas engine simulator. Moreover, the proposed blackout start and stand-alone operation method has been verified through experiments using a real gas engine.

6 citations


Network Information
Related Topics (5)
Electric power system
133K papers, 1.7M citations
79% related
Wind power
99K papers, 1.5M citations
77% related
Voltage
296.3K papers, 1.7M citations
75% related
Control system
129K papers, 1.5M citations
72% related
Electromagnetic coil
187.8K papers, 1.1M citations
70% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023178
2022355
202191
2020120
2019121
2018132