A Framework to Model and Analyze Electric Grid Cascading Failures to Identify Critical Nodes

Pierre, Brian J.; Krofcheck, D. J.; Munoz-Ramos, Karina; Arguello, Bryan

doi:10.1109/pmaps53380.2022.9810579

Cited by 2 publications

(3 citation statements)

References 22 publications

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“…Furthermore, it helps to prevent grid collapses with the more advanced grid‐forming controllers capable of reacting in parallel to conventional generation, bringing a headroom in case of a risky event [97]. Moreover, many large‐scale grid components can be taken out of service over a short time when scenarios such as earthquakes are considered [98]. This approach uses transient electromechanical simulations that remove components affected by a regional hazard with stochastic scenarios as inputs.…”

Section: Discussionmentioning

confidence: 99%

Power system coherency recognition and islanding: Practical limits and future perspectives

Chamorro

Gomez‐Diaz

Paternina

et al. 2022

IET Energy Syst Integration

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Electrical power systems are continuously upgrading into networks with a higher degree of automation capable of identifying and reacting to different events that may trigger undesirable situations. In power systems with decreasing inertia and damping levels, poorly damped oscillations with sustained or growing amplitudes following a disturbance may eventually lead to instability and provoke a major event such as a blackout. Additionally, with the increasing and considerable share of renewable power generation, unprecedented operational challenges shall be considered when proposing protection schemes against unstable electro-mechanical (e.g. ringdown) oscillations. In an emergency situation, islanding operations enable splitting a power network into separate smaller networks to prevent a total blackout. Due to such changes, identifying the underlying types of oscillatory coherency and the islanding protocols are necessary for a continuously updating process to be incorporated into the existing power system monitoring and control tasks. This paper examines the existing evaluation methods and the islanding protocols as well as proposes an updated operational guideline based on the latest dataanalytic technologies.

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Section: Discussionmentioning

confidence: 99%

Power system coherency recognition and islanding: Practical limits and future perspectives

Chamorro

Gomez‐Diaz

Paternina

et al. 2022

IET Energy Syst Integration

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“…Motto et al [9] transformed a mixed-integer bi-level model into a one-level mixed-integer linear model using duality theory, which is more efficient than previous models. In [10], the authors presented a bi-level Attack-Defense (AD) framework to find the critical loads by cascading failure scenarios. Many attack scenarios are generated in the first level.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Brown et al proposed a tri-level defense-attack-defense model to determine the most critical elements of a power system to protect against intentional attack [16]. Yao et al improved the bi-level model applied in [10] and the tri-level model in [16] by introducing a tri-level optimization model in which defenders can allocate budgets by conducting a sensitive analysis [17]. Both Brown et al [16] and Yao et al [17] agree that creating a tri-level model by adding an extra level of defense to the bi-level model produces a better protection strategy because of the increasing interaction between defenders and attackers.…”

Section: Literature Reviewmentioning

confidence: 99%

A Novel Four-Level Approach for Improving Power System Resilience Against Intentional Attacks

et al. 2022

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This study proposes a new four-level model to enhance power system resilience against human attacks. The model considers human attacks, such as intelligent attackers and power system planners, as defenders. The attackers want to maximize the impacts of actions, while the defender tries to avoid imposed costs and damages due to budget limitations. To this end, a new four-level model defense-defense-attackdefense (DDAD) is proposed, in which a new defense layer is added to the common three-level model defenseattack-defense (DAD). Looking at the model more closely, new power plants and substations are added to the power system to improve its resilience, while the most important power plants and substations are determined. Subsequently, the conventional three-level model was applied. In this research, the defender and attacker have some strategies with their own costs for every power system component, such as power plants and substations, and their own interactions. The power system model includes the load, power plant and substation, and substation priority, which are defined as a combination of the value of the load and network topology. The proposed model was applied to the IEEE-30 bus test system, and the results indicated the effectiveness of the proposed method.

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A Framework to Model and Analyze Electric Grid Cascading Failures to Identify Critical Nodes

Cited by 2 publications

References 22 publications

Power system coherency recognition and islanding: Practical limits and future perspectives

Power system coherency recognition and islanding: Practical limits and future perspectives

A Novel Four-Level Approach for Improving Power System Resilience Against Intentional Attacks

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