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Blackout

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


Papers
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Proceedings ArticleDOI
Ge Shaoyun1, Li Jifeng1, Liu Hong1, Cao Yuchen1, Yang Zan1, Yan Jun1 
01 Aug 2019
TL;DR: An accurate fragility model of the overhead system under extreme weather conditions is built to reflect the wind's impacts on failure rate, and a resilience evaluation method is proposed based on loss of load.
Abstract: Distribution networks often have blackouts because of natural disasters like typhoon. Resilience describes the ability of a distribution network to withstand extreme weather. To perfect the resilience assessment and analysis method of distribution systems, an accurate fragility model of the overhead system under extreme weather conditions is built to reflect the wind's impacts on failure rate. Failure scenarios are selected based on Shannon entropy and the level of blackout is determined. Second, resilience evaluation method is proposed based on loss of load. Third, the contribution of a traditional hardening method and distributed generation access to a distribution network resilience are compared. Finally, a simulation verifies the validity and accuracy of the proposed approach in this article.

16 citations

Journal ArticleDOI
TL;DR: Simulation results show that RCP‐Planet achieves high throughput performance, fairness, and is delay tolerant.
Abstract: SUMMARY UDP traffic is a part of the aggregate traffic over InterPlaNetary Internet backbone links, which includes planet images and multimedia data from some scientific observations. Existing rate control schemes cannot solve the rate control problem in InterPlaNetary Internet which is characterized by extremely long propagation delays, high link errors, asymmetrical bandwidth, and blackouts. In this paper, a rate control protocol, RCP-Planet, is proposed to address all the above challenges. RCP-Planet consists of two novel algorithms, i.e. Begin State and Operational State. The protocol is based on a novel rate probing mechanism, i.e. sending probing sequences to capture the available bandwidth. A new rate control scheme is designed to update the transmission rate based on the observed rate for the probing sequence. Tornado codes are used for packet-level FEC because of their fast encoding and decoding speed. Bandwidth asymmetry problem is addressed by FEC block-level ACKs. Moreover, RCP-Planet incorporates Blackout State into the protocol to improve performance in blackout conditions. Simulation results show that RCPPlanet achieves high throughput performance, fairness, and is delay tolerant. Copyright # 2007 John Wiley & Sons, Ltd.

16 citations

Proceedings ArticleDOI
12 Jun 2005
TL;DR: In this article, the frequency dynamic model that was developed to simulate the impact of the most important system parameters on the frequency response after a major disturbance was used to determine the optimal number of load shedding steps and the amount of load to be shed in each step.
Abstract: The main motivation for the study presented in this paper was the numerous blackouts that occurred in 2003. After the Italian blackout, which almost caused a collapse of the Slovenian power system as well, it became clear that some automatic procedures, with underfrequency load-shedding being one of the most important ones, need to be thoroughly revised. In the first part of the paper we deal with the frequency dynamic model that was developed to simulate the impact of the most important system parameters on the frequency response after a major disturbance. Next, we determined the optimal number of load-shedding steps and the amount of load to be shed in each step. We also checked whether it is necessary to use the frequency decline gradient in the underfrequency relaying scheme, which is currently not implemented. The simulations were performed on a detailed model of the Slovenian power system using the software package EUROSTAG. The proposed underfrequency relays' settings conform to the UCTE Operation handbook.

16 citations

01 Jan 2010
TL;DR: In this paper, the impact of the Marmara earthquake on the Turkish power system is described and examined in detail as regards the qualitative behavior of the power system, and the effect of the earthquake on power quality is examined.
Abstract: An earthquake is an instantly occurring and unpredictable natural event. The potential and effects of earthquakes and other natural disasters on power systems are system faults. The faults are not only limited to the physical damage of power systems, but power quality disturbances may also take place. The Marmara Earthquake, which occurred in Turkey on Aug 17, 1999, caused death and catastrophe. After the earthquake, the Turkish Power System collapsed. This is the largest power blackout in Turkey in last twenty years. In this study, the impact of the Marmara earthquake on the Turkish power system are described and the Marmara Earthquake Blackout is examined in detail as regards the qualitative behavior of the power system.

16 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023178
2022355
202191
2020120
2019121
2018132