Topic
Blackout
About: Blackout is a research topic. Over the lifetime, 2088 publications have been published within this topic receiving 30433 citations.
Papers published on a yearly basis
Papers
More filters
25 Feb 1975
TL;DR: In this article, a compendium of selected graphs, charts, equations, and relations useful in the analysis of electromagnetic blackout caused by nuclear explosions is presented, along with a glossary of frequently used terms.
Abstract: : The report is a compendium of selected graphs, charts, equations, and relations useful in the analysis of electromagnetic blackout caused by nuclear explosions. Information is provided on weapon outputs, ionization source functions, deionization, absorption, phase effects, and noise. The report also contains sections listing atmospheric properties, physical constants, definition of symbols, and a glossary of frequently used terms.
9 citations
01 Oct 2006
TL;DR: Specialized software tools which can assess power system security in near-real-time and assist operators in maintaining adequate security margins at all times thus lowering the risk of blackouts are developed.
Abstract: Recent power system blackouts have heightened the concern for power system security and, therefore, reliability. However, potential security improvements which could be achieved through transmission system facility reinforcement and generation supply expansion are long-term, costly, and uncertain. As a result, more immediate and cost effective solutions to the security issue have been pursued including the development of specialized software tools which can assess power system security in near-real-time and assist operators in maintaining adequate security margins at all times thus lowering the risk of blackouts. Such software tools have been implemented in numerous power systems world-wide and are gaining popularity as a result of demonstrated benefits to system performance
9 citations
Proceedings Article•
03 Jan 2001
TL;DR: A 15-year time series of North American electric power system blackouts shows evidence of self-organized criticality, which would suggest new complex systems approaches to understanding and possibly controlling blackouts.
Abstract: We analyze a 15-year time series of North American electric power system blackouts for evidence of self-organized criticality Scaled window variance and R/S analysis of the time series shows moderate long time correlations The probability distribution functions of various measures of blackout size have a power tail Moreover, the same analysis applied to a time series from a sandpile model known to be self-organized critical gives results of the same form Thus, the blackout data is consistent with self-organized criticality Self-organized criticality, if fully confirmed in power systems, would suggest new complex systems approaches to understanding and possibly controlling blackouts
9 citations
TL;DR: A precise optimization-based load recovery tool that intends to determine the optimal location and amount of load pickup through modeling the governor of generators as well as loads’ dynamic behaviors is proposed.
Abstract: A self-healing power grid can mitigate the impact of power outages and recover the affected area swiftly. To properly size the optimal amount and location of de-energized loads in the presence of both conventional and renewable sources, a precise optimization-based load recovery tool is proposed in this paper. The steady-state and transient behaviors of loads have been taken into account. The proposed tool contains three separate problems that interact with each other during the restoration period. The first-level problem determines the dispatching of generation units. The second-level problem comprises the non-linear algebraic equations, whose task is to provide the initial conditions for the third-level problem. Finally, the third-level problem intends to determine the optimal location and amount of load pickup through modeling the governor of generators as well as loads’ dynamic behaviors. To examine the effectiveness of the proposed tool, a modified IEEE 39-system under a partial blackout condition has been tested. The results are verified by a commercial time-domain simulation software (PSS/E) to demonstrate the accuracy of the proposed approach. Ultimately, the impact of wind turbine frequency control on the load recovery process has been studied under different penetration levels.
9 citations
TL;DR: In this paper, the economic costs of a single fault of a power plant at a peak-load time may lead to a total blackout for whole area connected by a single electric grid and isolated from other grids.
Abstract: South Korea is recently under serious situation in supplying electricity with enough power reserve. A single fault of power plant at a peak-load time may lead to a total blackout for whole area connected by a single electric grid and isolated from other grids. Despite of the seriousness of blackout, however, there are scarce studies with ex-ante analysis of the economic costs from blackout. In order to evocate the seriousness, we calculate the economic costs for both industrial and household sectors with using some survey data and statistical methodologies. As a result, total economic costs are 39.23 trillion KRW (35.83 trillion KRW for industrial sector, 3.40 trillion KRW for household sector).
8 citations