scispace - formally typeset
Proceedings ArticleDOI

Estimating cascading failure risk: Comparing Monte Carlo sampling and Random Chemistry

TLDR
In this paper, the authors present a computationally efficient approach to estimate cascading failure risk in power systems using the previously published Random Chemistry algorithm to find combinations of branch outages that lead to large blackouts, and then estimates risk by computing the expected blackout size based on the probabilities of various contingencies.
Abstract
This paper presents a computationally efficient approach to estimate cascading failure risk in power systems. The method uses the previously published Random Chemistry algorithm [1] to find combinations of branch outages that lead to large blackouts, and then estimates risk by computing the expected blackout size based on the probabilities of various contingencies. We compare this method with Monte Carlo simulation, and show that the method is at least an order of magnitude faster than Monte Carlo simulation. Results from the IEEE RTS-96 and the 2383-bus Polish grid are presented in the paper.

read more

Citations
More filters
Proceedings ArticleDOI

Mitigating cascading failures in interdependent power grids and communication networks

TL;DR: In this paper, a two-phase control policy is proposed to mitigate the cascade of failures in the power grid and the communication network, where the first phase finds the unavoidable failures that occur due to physical disconnection and the second phase redistributes the power so that all the connected communication nodes have enough power for operation and no power lines overload.
Journal ArticleDOI

Estimating Cascading Failure Risk With Random Chemistry

TL;DR: In this article, the authors present a new approach to estimate the risk of large cascading blackouts triggered by multiple contingencies, which uses a search algorithm (Random Chemistry) to identify blackout-causing contingencies and then combines the results with outage probabilities to estimate overall risk.
Journal ArticleDOI

Fast Screening of Vulnerable Transmission Lines in Power Grids: A PageRank-Based Approach

TL;DR: A PageRank-based fast screening method is derived to identify VLs, and the concept of interaction graph is extended to model cascading outages as a directed weighted graph, where impacts of hidden failures are first taken into account.
Journal ArticleDOI

A Comparison of Malicious Interdiction Strategies Against Electrical Networks

TL;DR: This paper comprehensively articulates the expected robustness of electrical power grids against coordinated branch interdictions.
Journal ArticleDOI

Fast Searching Strategy for Critical Cascading Paths Toward Blackouts

TL;DR: An improved interaction graph is constructed to cope with the situation where the $(N-1)$ criterion is not satisfied during the follow-up cascade propagation after an initial fault, and a modified PageRank model is derived to fast rank the influence of individual transmission lines on blackout risks.
References
More filters
Journal ArticleDOI

MATPOWER: Steady-State Operations, Planning, and Analysis Tools for Power Systems Research and Education

TL;DR: The details of the network modeling and problem formulations used by MATPOWER, including its extensible OPF architecture, are presented, which are used internally to implement several extensions to the standard OPF problem, including piece-wise linear cost functions, dispatchable loads, generator capability curves, and branch angle difference limits.
Journal ArticleDOI

The IEEE Reliability Test System-1996. A report prepared by the Reliability Test System Task Force of the Application of Probability Methods Subcommittee

TL;DR: In this article, an enhanced test system (RTS-96) is described for use in bulk power system reliability evaluation studies, which will permit comparative and benchmark studies to be performed on new and existing reliability evaluation techniques.
Journal ArticleDOI

Critical points and transitions in an electric power transmission model for cascading failure blackouts

TL;DR: Cascading failure in a simplified transmission system model as load power demand is increased is examined and it is found that operation near critical points can produce power law tails in the blackout size probability distribution similar to those observed.
Journal ArticleDOI

Cascading dynamics and mitigation assessment in power system disturbances via a hidden failure model

TL;DR: In this paper, a hidden failure embedded DC model of power transmission systems has been developed to study the power law distributions observed in North American blackout data, and the impacts of several model parameters on the global dynamics and evaluate possible mitigation measures.
Journal ArticleDOI

Risk Assessment of Cascading Outages: Methodologies and Challenges

TL;DR: The Task Force on Understanding, Prediction, Mitigation, and Restoration of Cascading Failures, under the IEEE PES Computer Analytical Methods Subcommittee (CAMS), seeks to consolidate and review the progress of the field towards methods and tools of assessing the risk of cascading failure as mentioned in this paper.
Related Papers (5)