A5000693009- Infrastructure Resilience and Vulnerability Analysis
- Power System Reliability and Maintenance
- Optimal Power Flow Distribution
- Smart Grid Security and Resilience
- Power System Optimization and Stability
- Water-Energy-Food Nexus Studies
- Smart Grid Energy Management
- Electric Power System Optimization
- Integrated Energy Systems Optimization
- Energy and Environment Impacts
- Microgrid Control and Optimization
- Risk and Safety Analysis
- Water resources management and optimization
- Water Systems and Optimization
- Flood Risk Assessment and Management
- Smart Grid and Power Systems
- Thermal Analysis in Power Transmission
- Islanding Detection in Power Systems
- HVDC Systems and Fault Protection
- Global Energy Security and Policy
- Hybrid Renewable Energy Systems
- Lightning and Electromagnetic Phenomena
- Transboundary Water Resource Management
- Disaster Management and Resilience
- Power Systems Fault Detection
University of Cyprus
2016-2025
National Migraine Centre
2023
University of Manchester
2013-2022
Association for Language Learning
2022
Colorado State University
2022
United States Army Corps of Engineers
2022
University of Pittsburgh
2022
Johns Hopkins University
2022
George Mason University
2022
University of the Aegean
2011
INCREASING THE RESILIENCE of critical power infrastructures to high-impact, low-probability events, such as extreme weather phenomena driven by climate change, is key importance for keeping the lights on. However, what does resilience really mean? Should we build a stronger and bigger grid or smarter one? This article discusses conceptual framework system resilience, its features, potential enhancement measures.
Resilience to high impact low probability events is becoming of growing concern, for instance address the impacts extreme weather on critical infrastructures worldwide. However, there is, as yet, no clear methodology or set metrics quantify resilience in context power systems and terms both operational infrastructure integrity. In this paper, “trapezoid” therefore introduced which extends “triangle” that traditionally used existing studies, order consider different phases a system may...
Electrical power systems have been traditionally designed to be reliable during normal conditions and abnormal but foreseeable contingencies. However, withstanding unexpected less frequent severe situations still remains a significant challenge. As critical infrastructure in the face of climate change, are more expected resilient high-impact low-probability events determined by extreme weather phenomena. resilience is an emerging concept, and, as such, it has not yet adequately explored...
Historical electrical disturbances highlight the impact of extreme weather on power system resilience. Even though occurrence such events is rare, severity their potential calls for developing suitable resilience assessment techniques to capture impacts and assessing relevant strategies mitigate them. This paper aims provide fundamentals insights modeling quantification systems Specifically, a fragility model individual components then whole transmission built mapping real-time severe...
Power systems have typically been designed to be reliable expected, low-impact high-frequency outages. In contrast, extreme events, driven for instance by weather and natural disasters, happen with low-probability, but can a high impact. The need power systems, possibly the most critical infrastructures in world, become resilient such events is becoming compelling. However, there still little clarity as this relatively new concept. On these premises, paper provides an introduction...
Several catastrophic experiences of extreme weather events show that boosting the power grid resilience is becoming increasingly critical. This paper discusses a unified evaluation and operational enhancement approach, which includes procedure for assessing impact severe on systems novel risk-based defensive islanding algorithm. adaptive algorithm aims to mitigate cascading effects may occur during emergencies. goes beyond infrastructure-based measures are traditionally used as defense...
This paper summarizes the report prepared by an IEEE PES Task Force.Resilience is a fairly new technical concept for power systems, and it important to precisely delineate this actual applications.As critical infrastructure, systems have be survive rare but extreme incidents (natural catastrophes, weather events, physical/cyber-attacks, equipment failure cascades, etc.) guarantee supply electricity-dependent economy society.Thus, resilience needs integrated into planning operational...
Abstract Renewable energy system development and improved operation can mitigate climate change. In many regions, hydropower is called to counterbalance the temporal variability of intermittent renewables like solar wind. However, using integrate these affect aquatic ecosystems increase cross-sectoral water conflicts. We develop apply an artificial intelligence-assisted multisector design framework in Ghana, which shows how hydropower’s flexibility alone could enable expanding by 38% but...
Cascading failure in electric power systems is a complicated problem for which variety of models, software tools, and analytical tools have been proposed but are difficult to verify. Benchmarking validation necessary understand how closely particular modeling method corresponds reality, what engineering conclusions may be drawn from tool, improvements need made the tool order reach valid conclusions. The community needs develop test cases tailored cascading that central practical...
Although extreme events, mainly natural disasters and climate change-driven severe weather, are the result of naturally occurring processes, power system planners, regulators, policy makers do not usually recognize them within network reliability standards. Instead, planners have historically designed electric infrastructure accounting for so-called credible (or "average") outages that represent single or (some kind of) simultaneous faults (e.g., on double circuits).
Countries around the world suffer dramatic impact of earthquakes and other natural hazards reflected in casualties, infrastructure damage, service interruptions, recovery costs. Although disaster exposure consciousness electric power systems has increased recent years, mitigation adaptation actions, such as reserve scheduling investments, are usually performed without quantitative tools to account for underlying stochasticity these events. This article first discusses why an integrated...
Permanently increasing penetration of converter-interfaced generation and renewable energy sources (RESs) makes modern electrical power systems more vulnerable to low probability high impact events, such as extreme weather, which could lead severe contingencies, even blackouts. These contingencies can be further propagated neighboring over coupling components/technologies consequently negatively influence the entire multi-energy system (MES) (such gas, heating electricity) operation its...
Apart from security issues, war-torn societies and countries face immense challenges in rebuilding damaged critical infrastructure. Existing post-conflict recovery frameworks mainly focus on social impacts mitigation. Also, existing for resilience to natural hazards are based design intervention, yet, they not fit infrastructure a number of reasons explained this paper. Post-conflict peacebuilding can be enhanced when by assessment (RBA) is employed, using standoff observations that include...
Situation awareness is a key factor in preserving power system security, as it enables effective and timely decision-making reactions by the operators to an incident. Insufficient situation results delayed, incorrect or deficient response, endangering stability. This was actually identified one of main causes several electrical disturbances last decade. paper identifies numerous factors that govern formation control center. A multi-state model based on Markov modeling proposed for assessing...
Electricity systems are undergoing unprecedented change, with growing capacity for low-carbon generation, and an increasingly distributed approach to network control. Furthermore, the severity of climate related threats is projected increase. To improve our understanding risks from these changes, this paper presents a novel modeling assess resilience future electricity networks hazards. The involves consideration the: 1) evolution in response changes demand, supply, infrastructure...
Although extreme natural disasters have occurred all over the world throughout history, power systems planners do not usually recognize them within network investment methodologies. Moreover, had historically focused on reliability approaches based average (rather than risk) performance indicators, undermining effects of high impact and low probability events decisions. To move towards a resilience centred approach, we propose practical framework that can be used to identify investments...
In recent years, countries around the world have been severely affected by catastrophic wildfires with significant environmental, economic, and human losses. Critical infrastructures, including power systems, damaged, compromising quality of life continuous reliable provision essential services, electricity supply.
The increased frequency of extreme events in recent years highlights the emerging need for development methods that could contribute to mitigation impact such on critical infrastructures, as well boost their resilience against them. This article proposes an online spatial risk analysis capable providing indication evolving power systems regions subject events. A Severity Risk Index (SRI) with support real-time monitoring assesses system resilience, application effect windstorms transmission...
Parallel power system restoration (PPSR) restores isolated sections (islands) of the network in parallel, thus overall process is accelerated. These islands are defined during preparation stage PPSR as part a sectionalising strategy (SS). During this process, it important that operators only use updated post‐blackout information. This study proposes new methodology based on ‘cut‐set’ matrix graph theory, which can identify shortlist suitable SSs satisfy critical constraints few minutes....
© 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).Corresponding author: D. J. Brayshaw, d.j.brayshaw@reading.ac.uk