Abstract Lightning strikes, snow, and wind are common causes of power system failures. Their frequency occurrence varies depending on weather patterns seasons. Here, we analyse the thirty pre-defined daily along with nearly 70,000 failures in United Kingdom between 2010 2019 to investigate predictability weather-induced outages. We identify high-risk pattern transitions for all Winter characterized by high speeds precipitation volumes responsible many instances outages caused wind, gale,...

Enhancing power system resilience to extreme weather requires an effective coordination of pre-disaster preventive response actions and post-disaster repair restoration services. In this context, article presents a two-stage framework enhance distribution networks severe events. It considers operating resource constraints in interdependent transportation based on official guidance from transport appraisal studies. also incorporates sources information available smart city such as energy...

The UK’s goal of achieving net zero emissions by 2050 requires the construction extensive new power infrastructure to accommodate low carbon energy technologies (e.g., offshore wind, nuclear) while mitigating climate risks. Lightning activity poses severe risks system security and can result in significant economic losses (Ofgem, 2019; Bialek, 2020). These must be mitigated as effectively possible grid is built coming years scenarios.To represent lightning activity, this study...

Convective weather, often associated with heavy precipitation, hail, lightning, and other hazardous phenomena, is highly unpredictable, short-lived, localized, making forecasting early warning particularly challenging. The formation of lightning closely tied to the thermodynamic microphysical processes within severe convective weather systems (e.g., Qie et al., 2021). Not only does it pose a significant threat human life properties, but has also been recognized by International...

Lightning strikes may result in widespread power outages with long supply interruption times and severe impacts to economy society. To prevent this from happening now the future, system planning operation practices must be revisited so that probability of caused by lightning can reduced. In context, article presents a probabilistic framework for impact assessment on grid which investigates exposure strikes. This new incorporates information about failure rates attributed protection design...

This paper presents a fault location method for power distribution networks with the presence of distributed generation (DG) units along their feeders. The proposed is based on voltage and current phasor quantities, calculated from measurements provided by intelligent electronic devices installed only at substation bus, information about electrical parameters feeders, stored in utility's database. It capable correctly locating point using detailed models feeder's line sections, impedances...

This paper presents a new strategy based on multi-variate statistical analysis for fault location and classification in power distribution networks with distributed energy resources, variable loads, switches enabling grid reconfiguration. The method relies impedance measurements acquired at the substation buses to build data-driven model of network operating conditions dimensionality reduction, considers few reference scenarios representing standard short-circuit operation perform use...

This article presents a monitoring strategy based on multilayer principal component analysis (PCA) to detect and diagnose power system disturbances in large amounts of data collected by intelligent electronic devices low voltage smart grids. The PCA models are built multiple sliding windows, sized (in terms length sampling time) according the type phenomena detect. Abnormalities detected with use two complementary statistical indexes, then diagnosed computing individual contributions each...

This paper presents an algorithm for fault location in medium-voltage power distribution networks with distributed energy resources along their feeders. The proposed is able to locate the points of correctly, using voltage and current measurements acquired at substation bus where generation units are connected. Thus, it uses detailed information about electrical parameters feeders estimation loads, then proceeds calculations order pinpoint all possible fault. article a study case typical...

Mobile energy storage units are regarded as a critical flexibility resource in power distribution networks. In low-carbon systems, they can substitute mobile diesel generators back-up source to small groups of customers after widespread outage. this context, article presents method for routing and dispatching aimed at providing resilient response severe weather events combining multiple natural hazards grids. Focused on low voltage network, it uses sources information typically available...

Windstorms represent a particular class of high-impact, low-probability events that is highly likely to damage distribution poles and pull down overhead lines in vulnerable areas. As result, when windstorm occurs, the costs associated with damaged corridors energy not supplied may be too high. Conversely, installation underground are expensive comparison compensate for penalties avoided loads lost. In this scenario, article assesses risks power resilient, cost-effective planning operation...

Energy communities are emerging as important local actors to help accelerate decarbonisation of the energy sector. By increasing uptake distributed generation from renewable sources, can take advantage benefits provided by clean usage in different ways. In this context, paper presents a strategy for optimal planning renewablebased community systems island-mode operation during prolonged outages. The proposed method is formulated mixed-integer quadratic problem aimed at minimising expected...

This paper presents a new strategy to support fault location in power distribution networks based on arbitrary similarity criteria the principal component subspace. Input data consist of impedance measurements at secondary transformer one or more substation buses, which are used build data-driven models grid operating conditions. The statistical actual conditions further compared with few reference scenarios determine network configuration and type features minimize variability data....

This article compares distinct signal-based and knowledge-based approaches often applied to process detect events in vast amounts of data collected by phasor measurement units (PMU). The computation times the accuracy correct event detections are tested evaluated a 1 - hour file from UT-Austin Independent Texas Synchrophasor Network with quantities plus an additive noise gathered at different PMU substations. A sliding time window is considered build representative model system operating...

Principal component analysis (PCA) is a dimensionality reduction technique often applied to process and detect events in large amounts of data collected by phasor measurement units (PMU) at transmission distribution level. This article considers five different approaches select an appropriate number principal components, builds the statistical model PMU online over sliding window 10 seconds 1 minute, evaluates computation times accuracy correct event detections with use two tests 1-hour file...

This article provides an evaluation of power system resilience enhancements in low-income neighborhoods. Low-income households and communities may be subject to risks different nature, such as natural hazards human-made attacks, hereby considered particular cases high-impact, low-probability events that are highly likely damage grid infrastructures. Such result long interruption times lead permanent disconnection from the extreme cases, consequently, value load lost much higher than...

Abstract In the UK, lightning strikes, snow and ice, wind gale are common causes of power system failures. Their frequency occurrence varies according to weather conditions given by patterns seasons. With objective identifying relevant trends predict prepare for outages, this article investigates relationships between weather-induced failures in UK. It uses a set 30 predefined patterns, with each date assigned specific pattern 2010 2019. The results reveal that certain transitions related...

Enhancing power system resilience to extreme weather requires an effective coordination of pre-disaster preventive response actions and post-disaster repair restoration services. In this context, article presents a two-stage framework enhance distribution networks severe events, considering operating resource constraints along with sources information available in smart grids. the first stage, operational planning strategy is defined prepare grid for high-risk outage scenario objective...

This paper presents a novel scenario-based decentralized model predictive control framework for power distribution networks with focus on energy prosumers at local level. The proposed includes distributed resources, storage systems, and variable loads connected to the grid, whereas strategy optimizes distinct criteria that find important prioritize when it comes production consumption subject overall grid operation in dual decomposition formulation. Moreover, scenario program allows certain...