A sequentially preventive model enhancing power system resilience against extreme-weather-triggered failures

Liu, Hanchen; Wang, Chong; Ju, Ping; Li, Hongyu

doi:10.1016/j.rser.2021.111945

Cited by 15 publications

(2 citation statements)

References 58 publications

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“…In addition to the extreme weather mentioned above caused by increased atmospheric activity due to global climate change, other geological or astronomical natural disasters can also adversely affect urban grid operations, including earthquakes [42] , solar activity [43] , geomagnetic storms [44] , tsunamis [45] , volcanic eruptions [46] . The probability of these black swan events [47] is very dependent on the city's geographical location. Thus, local grid operators often need to specify resilience enhancement policies based on the specific urban natural characteristics and economic development level.…”

Section: Other Natural Disastersmentioning

confidence: 99%

Resilient power grid for smart city

Song

Wan

et al. 2022

iEnergy

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Modern power grid has a fundamental role in the operation of smart cities. However, high impact low probability extreme events bring severe challenges to the security of urban power grid. With an increasing focus on these threats, the resilience of urban power grid has become a prior topic for a modern smart city. A resilient power grid can resist, adapt to, and timely recover from disruptions. It has four characteristics, namely anticipation, absorption, adaptation, and recovery. This paper aims to systematically investigate the development of resilient power grid for smart city. Firstly, this paper makes a review on the high impact low probability extreme events categories that influence power grid, which can be divided into extreme weather and natural disaster, human-made malicious attacks, and social crisis. Then, resilience evaluation frameworks and quantification metrics are discussed. In addition, various existing resilience enhancement strategies, which are based on microgrids, active distribution networks, integrated and multi energy systems, distributed energy resources and flexible resources, cyber-physical systems, and some resilience enhancement methods, including probabilistic forecasting and analysis, artificial intelligence driven methods, and other cutting-edge technologies are summarized. Finally, this paper presents some further possible directions and developments for urban power grid resilience research, which focus on power-electronized urban distribution network, flexible distributed resource aggregation, cyber-physicalsocial systems, multi-energy systems, intelligent electrical transportation and artificial intelligence and Big Data technology.

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Section: Other Natural Disastersmentioning

confidence: 99%

Resilient power grid for smart city

Song

Wan

et al. 2022

iEnergy

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“…A vulnerability analysis of power systems to cascading failures using a modified H‐index method is presented in [17], which is derived from the method used to quantify scientific achievements, and indicates that the degree of influence of a node on its adjacent nodes is not less than H. The proposed method can effectively identify lines which are prone to propagate faults using a two‐level cascading transition graph, where the first level investigates the direct impact of a line failure on the system, while the second level investigates the impact of hidden failures. Preventive strategies to mitigate extreme‐weather‐related contingencies are investigated in [18]. The model introduces a proactive operational strategy intended to enhance the system resilience and mitigate cascade progression during weather‐related events.…”

Section: Introductionmentioning

confidence: 99%

Multi‐zonal method for cascading failure analyses in large interconnected power systems

Stankovski

Gjorgiev

Sansavini

2022

IET Generation Trans & Dist

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Most cascading failure analysis methods successfully capture cascading developments within one control zone, or region comprised of multiple control zones, controlled by a single transmission system operator (TSO). They neglect, however, the operations of multi‐zonal systems. To bridge this gap, the authors introduce the multi‐zonal method for cascading failure analyses of large interconnected power systems. The method accounts for all control zones in a multi‐zonal system, assesses their power flows, re‐evaluates the system topology after disturbances and applies frequency balancing measures in each control zone independently, thus effectively simulating the actions of multiple TSOs. To demonstrate the capabilities of this method, a case study is investigated which compares the security benefits of the multi‐zonal (national) versus the single‐zone (regional) frequency balancing methods in a multi‐zonal system. The application to the IEEE 118‐bus test system shows that the regional approach increases the security of this system in small and medium cascades, whose expected demand not served is reduced by 28% and 26%, respectively, in comparison to the national approach. However, the expected load shedding for large‐scale cascading events in the regional approach is 42 times as large as in the national approach. This is mainly caused by overloads occurring in transmission lines adjacent to the cross‐zonal tie lines, which are 154% higher with the regional method compared to the national in large cascading events. The capability to identify congestions is presented by devising an upgrading strategy, which makes the regional frequency balancing approach viable from a security aspect.

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Power System Resilience: The Role of Electric Vehicles and Social Disparities in Mitigating the US Power Outages

Loni,

Asadi

2024

Smart Grids and Energy

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Electrical power systems with their components such as generation, network, control and transmission equipment, management systems, and electrical loads are the backbone of modern life. Historical power outages caused by natural disasters or human failures show huge losses to the economy, environment, healthcare, and people’s lives. This paper presents a systematic review on three interconnected dimensions of (1) electric power system resilience (2) the electricity supply for/through Electric Vehicles (EVs), and (3) social vulnerability to power outages. This paper contributes to the existing literature and research by highlighting the importance of considering social vulnerability in the context of power system resilience and EVs, providing insights into addressing inequities in access to backup power resources during power outages. This paper first reviews power system resilience focusing on qualitative and quantitative metrics, evaluation methods, and planning and operation-based enhancement strategies for electric power systems during prolonged outages through microgrids, energy storage systems (e.g., battery, power-to-gas, and hydrogen energy storage systems), renewable energy sources, and demand response schemes. In addition, this study contributes to in-depth examination of the evolving role of EVs, as a backup power supply, in enhancing power system resilience by exploring the EV applications such as vehicle-to-home/building, grid-to-vehicle, and vehicle-to-vehicle or the utilization of second life of EV batteries. Transportation electrification has escalated the interdependency of power and transportation sectors, posing challenges during prolonged power outages. Therefore, in the next part, the resilient strategies for providing electricity supply and charging services for EVs are discussed such as deployments of battery swapping technology and mobile battery trucks (MBTs), as well as designing sustainable off-grid charging stations. It offers insights into innovative solutions for ensuring continuous electricity supply for EVs during outages. In the section on social vulnerability to power outages, this paper first reviews the most socioeconomic and demographic indicators involved in the quantification of social vulnerability to power outages. Afterward, the association between energy equity on social vulnerability to power outages is discussed such as inequity in backup power resources and power recovery and restoration. The study examines the existing challenges and research gaps related to the power system resilience, the electric power supply for/through EVs, social vulnerability, and inequity access to resources during extended power outages and proposes potential research directions to address these gaps and build upon future studies.

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A sequentially preventive model enhancing power system resilience against extreme-weather-triggered failures

Cited by 15 publications

References 58 publications

Resilient power grid for smart city

Resilient power grid for smart city

Multi‐zonal method for cascading failure analyses in large interconnected power systems

Power System Resilience: The Role of Electric Vehicles and Social Disparities in Mitigating the US Power Outages

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