Optimizing power system investments and resilience against attacks

Fang, Yi-Ping

doi:10.1016/j.ress.2016.10.028

Cited by 117 publications

(80 citation statements)

References 62 publications

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“…focus on a resilience assessment of power systems with respect to hurricanes [18]. A methodology for determining optimal power systems investment for building resilience is presented in [19]. A framework for load restoration in the utility grid is proposed in [6], and strategies for modeling large-scale energy infrastructure from a resilience perspective have been explored in the literature [20].…”

Section: B Literature Reviewmentioning

confidence: 99%

Microgrid resilience: A holistic approach for assessing threats, identifying vulnerabilities, and designing corresponding mitigation strategies

et al. 2020

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Microgrids are being increasing deployed to improve the operational flexibility, resilience, coordinated-energy management capabilities, self-adequacy, and increased reliability of power systems. This strong market growth is also driven by advances in power electronics, improved control systems, and the rapidly falling price and increased adoption of distributed energy generation technologies, like solar photovoltaics and storage. In the event of grid outages, microgrids can provide a backup source of power; providing resilience to the critical loads; however, this requires that the microgrid itself is resilient to physical and cyber threats. Building highly resilient microgrids requires a methodological assessment of potential threats, identification of vulnerabilities, and design of mitigation strategies. This paper provides a comprehensive review of threats, vulnerabilities, and mitigation strategies and develops a definition for microgrid resilience. The paper also develops a methodology for designing resilient microgrids by considering how microgrid designers and site owners evaluate threats, vulnerabilities, and consequences and choose the microgrid features required to address these threats under different situations.

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Section: B Literature Reviewmentioning

confidence: 99%

Microgrid resilience: A holistic approach for assessing threats, identifying vulnerabilities, and designing corresponding mitigation strategies

et al. 2020

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“…Under cyber attacks, e.g., by contagion of malware, security-related system features may result to be compromised and, the system safety and security potentially endangered. The identification of the cyber threats most affecting the system response is quite important for decision-making on optimal protection and resilience, as prevention and mitigation of malicious attacks contribute to guaranteeing CPS integrity and functionality [67,79,196,209].…”

Section: Safety and Security Of Cyber-physical Systemsmentioning

confidence: 99%

The future of risk assessment

Zio

2018

Reliability Engineering & System Safety

263

116

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A B S T R A C TRisk assessment must evolve for addressing the existing and future challenges, and considering the new systems and innovations that have already arrived in our lives and that are coming ahead. In this paper, I swing on the rapid changes and innovations that the World that we live in is experiencing, and analyze them with respect to the challenges that these pose to the field of risk assessment. Digitalization brings opportunities but with it comes also the complexity of cyber-phyiscal systems. Climate change and extreme natural events are increasingly threatening our infrastructures; terrorist and malevolent threats are posing severe concerns for the security of our systems and lives. These sources of hazard are extremely uncertain and, thus, difficult to describe and model quantitatively.Some research and development directions that are emerging are presented and discussed, also considering the ever increasing computational capabilities and data availability. These include the use of simulation for accident scenario identification and exploration, the extension of risk assessment into the framework of resilience and business continuity, the reliance on data for dynamic and condition monitoring-based risk assessment, the safety and security assessment of cyber-physical systems.The paper is not a research work and not exactly a review or a state of the art work, but rather it offers a lookout on risk assessment, open to consideration and discussion, as it cannot pretend to give an absolute point of view nor to be complete in the issues addressed (and the related literature referenced to).

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“…The results were not alarming as they showed good safety margins of the Swiss grid: no unstable conditions emerged from the attack on the most critical substation (hub), the effect of cascading failures was very small, and transmission lines were overloaded in only a few scenarios. Recently, planner-attacker-defender models are adopted to develop decisions that co-optimize investment/operating costs and functionality loss after attacks against power systems (Fang and Sansavini 2017). The model bridges long-term system planning for transmission expansion and short-term switching operations in reaction to attacks.…”

Section: Resistance To Malicious Attacksmentioning

confidence: 99%

Securing the Operation of Socially Critical Systems from an Engineering Perspective: New Challenges, Enhanced Tools and Novel Concepts

Kröger

2017

Eur J Secur Res

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Large-scale infrastructure systems, providing essential goods and services to our societies and economies, are witnessing tighter integration and coupling, notably by the sheer ubiquitous use of cyber-physical systems for integration, communication, and control. Putting the electric power system in focus, the pertinent supervisory and data acquisition systems are not only running through major changes allowing for increased levels of communications but also exposing them to new (cyber) threats. Furthermore, humans are an essential part of these systems interacting with them and developing them into a ''system of socio-technical systems''. In theory, and evidenced by past blackouts, power grids show complex behaviors and a strong influence of contextual factors. While the deterministic ''N-1 security principle'' has been successful in ensuring high performance of the European grid, it has been deemed insufficient to cope with multiple failures, cascading grid tripping scenarios, and non-technical factors and to capture a widened spectrum of threats. Thus, as traditional models often reach their limits, advanced modeling and simulation techniques are necessary, which are partly available and applied. Moreover, past disasters prove the need of focusing on ''after shock behavior'' and precaution against unanticipated events by amplifying absorptive, adaptive, and recovery capabilities. This shift towards increased resilience requires substantial conceptual work and the further development of analytical tools. Here the latest achievements and future challenges in this field of active research, aiming at securing the operation of those systems, are highlighted.

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Optimizing power system investments and resilience against attacks

Cited by 117 publications

References 62 publications

Microgrid resilience: A holistic approach for assessing threats, identifying vulnerabilities, and designing corresponding mitigation strategies

Microgrid resilience: A holistic approach for assessing threats, identifying vulnerabilities, and designing corresponding mitigation strategies

The future of risk assessment

Securing the Operation of Socially Critical Systems from an Engineering Perspective: New Challenges, Enhanced Tools and Novel Concepts

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