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View article: Second-Order-Cone Formulations of Power Flow for Topology Optimization
Second-Order-Cone Formulations of Power Flow for Topology Optimization Open
Optimization problems that involve topology optimization in scenarios with large scale outages, such as post-disaster restoration or public safety power shutoff planning, are very challenging to solve. Using simple power flow representatio…
View article: Electricity Market Bidding for Renewable Electrolyzer Plants: An Opportunity Cost Approach
Electricity Market Bidding for Renewable Electrolyzer Plants: An Opportunity Cost Approach Open
Hydrogen produced through electrolysis with renewable power is considered key to decarbonize several hard-to-electrify sectors. This work proposes a novel approach to model the active electricity market participation of co-located renewabl…
View article: Greening the Grid: Electricity Market Clearing with Consumer-Based Carbon Cost
Greening the Grid: Electricity Market Clearing with Consumer-Based Carbon Cost Open
To enhance decarbonization efforts in electric power systems, we propose a novel electricity market clearing model that internalizes the allocation of emissions from generations to loads and allows for consideration of consumer-side carbon…
View article: Quantifying Metrics for Wildfire Ignition Risk from Geographic Data in Power Shutoff Decision-Making
Quantifying Metrics for Wildfire Ignition Risk from Geographic Data in Power Shutoff Decision-Making Open
Faults on power lines and other electric equipment are known to cause wildfire ignitions. To mitigate the threat of wildfire ignitions from electric power infrastructure, many utilities preemptively de-energize power lines, which may resul…
View article: Advanced Scheduling of Electrolyzer Modules for Grid Flexibility
Advanced Scheduling of Electrolyzer Modules for Grid Flexibility Open
As the transition to sustainable power generation progresses, green hydrogen production via electrolysis is expected to gain importance as a means for energy storage and flexible load to complement variable renewable generation. With the i…
View article: ElectricityEmissions.jl: A Framework for the Comparison of Carbon Intensity Signals
ElectricityEmissions.jl: A Framework for the Comparison of Carbon Intensity Signals Open
An increasing number of individuals, companies and organizations are interested in computing and minimizing the carbon emissions associated with their real-time electricity consumption. To achieve this, they require a carbon signal, i.e. a…
View article: Quantifying Metrics for Wildfire Ignition Risk from Geographic Data in Power Shutoff Decision-Making
Quantifying Metrics for Wildfire Ignition Risk from Geographic Data in Power Shutoff Decision-Making Open
Faults on power lines and other electric equipment are known to cause wildfire ignitions. To mitigate the threat of wildfire ignitions from electric power infrastructure, many utilities preemptively de-energize power lines, which may resul…
View article: Engineering Microgrids Amid the Evolving Electrical Distribution System
Engineering Microgrids Amid the Evolving Electrical Distribution System Open
Non-wires alternatives and microgrid technologies are maturing and present great opportunities for electric utilities to increase the benefits they offer to their customers. They have the potential to decrease the cost of resolving traditi…
View article: Energy Management for Prepaid Customers: A Linear Optimization Approach
Energy Management for Prepaid Customers: A Linear Optimization Approach Open
With increasing energy prices, low income households are known to forego or minimize the use of electricity to save on energy costs. If a household is on a prepaid electricity program, it can be automatically and immediately disconnected f…
View article: Security constrained optimal power shutoff for wildfire risk mitigation
Security constrained optimal power shutoff for wildfire risk mitigation Open
Electric grid faults are increasingly the source of ignition for major wildfires. To reduce the likelihood of such ignitions in high risk situations, utilities use preemptive de‐energization of power lines, commonly referred to as Public S…
View article: Unifying Chance-Constrained and Robust Optimal Power Flow for Resilient Network Operations
Unifying Chance-Constrained and Robust Optimal Power Flow for Resilient Network Operations Open
Política de acceso abierto tomada de: https://v2.sherpa.ac.uk/id/publication/37938 (accepted version, pathway c)
View article: A Framework for Balancing Power Grid Efficiency and Risk with Bi-objective Stochastic Integer Optimization
A Framework for Balancing Power Grid Efficiency and Risk with Bi-objective Stochastic Integer Optimization Open
Power grid expansion planning requires making large investment decisions in the present that will impact the future cost and reliability of a system exposed to wide-ranging uncertainties. Extreme temperatures can pose significant challenge…
View article: Cascading Blackout Severity Prediction with Statistically-Augmented Graph Neural Networks
Cascading Blackout Severity Prediction with Statistically-Augmented Graph Neural Networks Open
Higher variability in grid conditions, resulting from growing renewable penetration and increased incidence of extreme weather events, has increased the difficulty of screening for scenarios that may lead to catastrophic cascading failures…
View article: Multistage Stochastic Program for Mitigating Power System Risks under Wildfire Disruptions
Multistage Stochastic Program for Mitigating Power System Risks under Wildfire Disruptions Open
The frequency of wildfire disasters has surged five-fold in the past 50 years due to climate change. Preemptive de-energization is a potent strategy to mitigate wildfire risks but substantially impacts customers. We propose a multistage st…
View article: Long Solution Times or Low Solution Quality: On Trade-Offs in Choosing a Power Flow Formulation for the Optimal Power Shutoff Problem
Long Solution Times or Low Solution Quality: On Trade-Offs in Choosing a Power Flow Formulation for the Optimal Power Shutoff Problem Open
The Optimal Power Shutoff (OPS) problem is an optimization problem that makes power line de-energization decisions in order to reduce the risk of igniting a wildfire, while minimizing the load shed of customers. This problem, with DC linea…
View article: Identifying Secure Operating Ranges for DER Control using Bilevel Optimization
Identifying Secure Operating Ranges for DER Control using Bilevel Optimization Open
Active distribution grids are accommodating an increasing number of controllable electric loads and distributed energy resources (DERs). A majority of these DERs are managed by entities other than the distribution utility, such as individu…
View article: Managing Wildfire Risk and Promoting Equity through Optimal Configuration of Networked Microgrids
Managing Wildfire Risk and Promoting Equity through Optimal Configuration of Networked Microgrids Open
As climate change increases the risk of large-scale wildfires, wildfire\nignitions from electric power lines are a growing concern. To mitigate the\nwildfire ignition risk, many electric utilities de-energize power lines to\nprevent electr…
View article: Multi-period Power System Risk Minimization under Wildfire Disruptions
Multi-period Power System Risk Minimization under Wildfire Disruptions Open
Natural wildfire becomes increasingly frequent as climate change evolves, posing a growing threat to power systems, while grid failures simultaneously fuel the most destructive wildfires. Preemptive de-energization of grid equipment is eff…
View article: Security Constrained Optimal Power Shutoff
Security Constrained Optimal Power Shutoff Open
Electric grid faults are increasingly the source of ignition for major wildfires. To reduce the likelihood of such ignitions in high risk situations, utilities use pre-emptive deenergization of power lines, commonly referred to as Public S…
View article: Optimal Energy Rationing for Prepaid Electricity Customers
Optimal Energy Rationing for Prepaid Electricity Customers Open
For a large (and recently increasing) number of households, affordability is a major hurdle in accessing sufficient electricity and avoiding service disconnections. For such households, in-home energy rationing, i.e. the need to actively p…
View article: Unifying Chance-Constrained and Robust Optimal Power Flow for Resilient Network Operations
Unifying Chance-Constrained and Robust Optimal Power Flow for Resilient Network Operations Open
Uncertainty in renewable energy generation has the potential to adversely impact the operation of electric networks. Numerous approaches to manage this impact have been proposed, ranging from stochastic and chance-constrained programming t…
View article: Optimal Design and Cascading Failure Evaluation of Remedial Action Schemes
Optimal Design and Cascading Failure Evaluation of Remedial Action Schemes Open
Remedial action schemes (RAS) are often seen as an alternative to building new transmission infrastructure to relieve congestion in the system. Consequently, there has been a rapid growth in the number of RAS in electric power systems acro…
View article: DynaGrid: Dynamic Microgrids for Large-Scale DER Integration and Electrification
DynaGrid: Dynamic Microgrids for Large-Scale DER Integration and Electrification Open
This presentation describes the DynaGrid project, a framework for dynamic formation and operation of networked microgrids that addresses major research challenges and overall goals of the DOE Office of Electrictiy Microgrid Program.
View article: California Test System (CATS): A Geographically Accurate Test System based on the California Grid
California Test System (CATS): A Geographically Accurate Test System based on the California Grid Open
This paper presents the California Test System (CATS), a synthetic transmission grid in California that can be used by the public for power systems policy research without revealing any critical energy information. The proposed synthetic g…