121 citations · 211 across the 27 of their papers we have counts for
22 papers · 1 filter
The consequences of high SMR operating costs in electricity markets
Pradyumna Rao, Daniel T. Kaffine, Bri-Mathias Hodge
As US power markets contend with growing demand for firm generation, the nuclear industry has offered Small Modular Reactors (SMRs). However, how these concepts would fare in a rap…
Nodal Frequency Stability-Constrained UC & ED for Renewable-Dominated Power Systems
Marena Trujillo, David Cole, Bri-Mathias Hodge
In modern power systems with high shares of renewable, inverter-based resources (IBRs), frequency stability becomes more complex due to the fast dynamics of IBRs and frequency traj…
Power Grid Infrastructure for AI Data Centers
Amir Sajadi, Muhy Eddin Za'ter, Maria Vabson +2
This article addresses recent advances in artificial intelligence, which have set off an astounding race among technology frontiers to build large data centers. It provides insight…
Empirical Assessment of Time-Series Foundation Models For Power System Forecasting Applications
Muhy Eddin Za'ter, Bri-Mathias Hodge
Accurate forecasting of electric load and renewable generation is essential for reliable and cost effective power system operations. Recent advances in transformer based and founda…
A Multi-Stage Warm-Start Deep Learning Framework for Unit Commitment
Muhy Eddin Za'ter, Anna Van Boven, Bri-Mathias Hodge +1
Maintaining instantaneous balance between electricity supply and demand is critical for reliability and grid instability. System operators achieve this through solving the task of…
Cross-Atlantic Research Agenda for Scalable Grid Architectures and Distributed Flexibility
Mads R. Almassalkhi, Dakota Hamilton, Hasan Giray Oral +10
Electric power systems are rapidly evolving into deeply digital, cyber-physical infrastructures in which large fleets of distributed energy resources must be coordinated as system-…
Selective State-Space Models for Koopman-based Data-driven Distribution System State Estimation
Bader Alabdulrazzaq, Bri-Mathias Hodge
Distribution System State Estimation (DSSE) plays an increasingly-important role in modern power grids due to the integration of distributed energy resources (DERs). The inherent c…
Computationally Efficient Analytical Models of Frequency and Voltage in Low-Inertia Systems
Marena Trujillo, Amir Sajadi, Jonathan Shaw +1
In this paper, low-order models of the frequency and voltage response of mixed-generation, low-inertia systems are presented. These models are unique in their ability to efficientl…
Leveraging Multi-Task Learning for Multi-Label Power System Security Assessment
Muhy Eddin Za'ter, Amir Sajad, Bri-Mathias Hodge
This paper introduces a novel approach to the power system security assessment using Multi-Task Learning (MTL), and reformulating the problem as a multi-label classification task.…
Analytical Models of Frequency and Voltage in Large-Scale All-Inverter Power Systems
Marena Trujillo, Amir Sajadi, Bri-Mathias Hodge
Low-order frequency response models for power systems have a decades-long history in optimization and control problems such as unit commitment, economic dispatch, and wide-area con…
Autonomous Grid-Forming Inverter Exponential Droop Control for Improved Frequency Stability
Rick Wallace Kenyon, Amirhossein Sajadi, Bri-Mathias Hodge
This paper introduces the novel Droop-e grid-forming power electronic converter control strategy, which establishes a non-linear, active power--frequency droop relationship based o…
Acceleration of Power System Dynamic Simulations using a Deep Equilibrium Layer and Neural ODE Surrogate
Matthew Bossart, Jose Daniel Lara, Ciaran Roberts +3
The dominant paradigm for power system dynamic simulation is to build system-level simulations by combining physics-based models of individual components. The sheer size of the sys…
Lunar Power Grid: Network Structure and Spontaneous Synchronization
Mark Walth, Amir Sajadi, Marc Carbone +1
Achieving stable synchronized operation in an alternating current power network is critical to the continuity and reliability of energy delivery. In this paper, we study a dynamic…
Plane Wave Dynamic Model of Electric Power Networks with High Shares of Inverter-Based Resources
Amirhossein Sajadi, Bri-Mathias Hodge
Contemporary theories and models for electric power system stability are predicated on a widely held assumption that the mechanical inertia of the rotating mass of synchronous gene…
Towards Robust and Scalable Dispatch Modeling of Long-Duration Energy Storage
Omar J. Guerra, Sourabh Dalvi, Amogh A. Thatte +3
Existing modeling approaches for long-duration energy storage (LDES) are often based either on an oversimplified representation of power system operations or limited representation…
Parameterized Linear Power Flow for High Fidelity Voltage Solutions in Distribution Systems
Marija Marković, Bri-Mathias Hodge
This paper introduces a new model for highly accurate distribution voltage solutions, coined as a parameterized linear power flow model. The proffered model is grounded on a physic…
Droop-e: Exponential Droop as a Function of Power Output for Grid-Forming Inverters with Autonomous Power Sharing
Rick Wallace Kenyon, Amirhossein Sajadi, Bri-Mathias Hodge
This paper presents the novel Droop-e grid-forming inverter control strategy, which establishes an active power-frequency relationship based on an exponential function of the inver…
Hierarchical Control of Utility-Scale Solar PV Plants for Mitigation of Generation Variability and Ancillary Service Provision
Simon Julien, Amirhossein Sajadi, Bri-Mathias Hodge
Renewable energy technologies including solar and wind inevitably play a leading role in meeting the growing demand for a decarbonized and clean power grid. However, these technolo…
Synchronization in Electric Power Networks with Inherent Heterogeneity Up to 100% Inverter-Based Renewable Generation
Amirhossein Sajadi, Rick Wallace Kenyon, Bri-Mathias Hodge
The synchronized operation of power generators is the foundation of electric power network stability and a key to the prevention of undesired power outages and blackouts. Here, we…
Interactive Power to Frequency Dynamics Between Grid-Forming Inverters and Synchronous Generators in Power Electronics-Dominated Power Systems
Rick Wallace Kenyon, Amirhossein Sajadi, Matt Bossart +2
With increased attention on grid-forming inverters as a power system stabilizing device during periods of high shares of inverter-based resource operations, there is a present need…
Voltage Estimation in Low-Voltage Distribution Grids with Distributed Energy Resources
Marija Marković, Amirhossein Sajadi, Anthony Florita +2
The present distribution grids generally have limited sensing capabilities and are therefore characterized by low observability. Improved observability is a prerequisite for increa…
Computational Experiment Design for Operations Model Simulation
Jose Daniel Lara, Jonathan T. Lee, Duncan Callaway +1
Computer simulations that demonstrate the valueof novel approaches are crucial to developing more flexibleand robust power systems operations with high penetrations ofrenewable ene…