7 citations · 9 across the 11 of their papers we have counts for
13 papers
Quantifying Grid-Forming Requirements for System Strength: How Much and Where?
Ambuj Gupta, Balarko Chaudhuri, Mark O'Malley
As power systems transition toward inverter-based resource (IBR)-dominated grids, Grid-ForMing (GFM) IBRs are increasingly expected to provide the voltage-source characteristics re…
Modular Model Order Reduction for Inverter-Based Power Systems with Stability and Accuracy Guarantees
Hanqing Zhang, Pudong Ge, Mohammad Fahim Shakib +5
This paper proposes a modular model order reduction framework for large-scale power grids integrated with renewable energy sources. The proposed framework has the advantage of redu…
Decentralized Control Synthesis in IBR-Dominated Power Systems: A Block Diagonal Dominance Based Approach
Pudong Ge, Muhammad Sharjeel Javaid, Xiaoyu Tan +4
Integrating inverter-based resources (IBRs) from multiple vendors into power systems is challenging because their controllers are typically designed independently, with little coor…
Jacobian Voltage Stiffness Metric -- A Measure of Grid-Forming Capability and System Strength in IBR-Dominated Grids
Ambuj Gupta, Balarko Chaudhuri, Mark O'Malley
As power systems transition toward inverter-based resource (IBR)-dominated grids, traditional system strength definitions and metrics are becoming increasingly inadequate to charac…
Parameterizing Operating-Point-Dependent IBR Using Coherent Operating Regions for Sub-synchronous Oscillation Analysis
Gabriel Covarrubias Maureira, Balarko Chaudhuri, Mark O'Malley
Analysis of sub-synchronous oscillations (SSO) in IBR-dominated grids relies on frequency scan-based estimation of black-box IBR models at selected operating points. Since IBRs may…
Decentralized Stability of IBR-dominated Power Grids Using Block Diagonal Dominance
Youhong Chen, Xiaoyu Tan, Muhammad Sharjeel Javaid +2
The growing penetration of inverter-based resources (IBRs) necessitates stability assessment methods that are scalable, decentralized, and model-agnostic. This paper develops a blo…
Frequency-Domain Compliance Assessment of Grid-Forming Devices
Ambuj Gupta, Muhammad Sharjeel Javaid, Balarko Chaudhuri +1
Grid-ForMing Inverters (GFMIs) are expected to provide voltage stiffness to the grid. Explicitly, system operators (SOs) and regulators expect GFMIs to behave like a "voltage sourc…
Spatial Characterization of Sub-Synchronous Oscillations Using Black-Box IBR Models
Muhammad Sharjeel Javaid, Gabriel Covarrubias Maureira, Ambuj Gupta +4
Power systems with high penetration of inverter-based resources (IBRs) are prone to sub-synchronous oscillations (SSO). The opaqueness of vendor-specific IBR models limits the abil…
Equivalent Circuit Modeling of Grid-Forming Inverters in (Sub)-Transient Time-Frame
Ambuj Gupta, Balarko Chaudhuri, Mark O'Malley
The widely accepted definition of grid-forming (GFM) inverter states that it should behave as a (nearly) constant voltage source behind an impedance by maintaining a (nearly) const…
Data-Driven Post-Event Analysis with Real-World Oscillation Data from Denmark
Youhong Chen, Debraj Bhattacharjee, Balarko Chaudhuri +3
This paper demonstrates how Extended Dynamic Mode Decomposition (EDMD), grounded in Koopman operator theory, can effectively identify the main contributor(s) to oscillations in pow…
A Data-Driven Method to Identify Major Contributors to Low-Frequency Oscillations
Youhong Chen, Debraj Bhattacharjee, Balarko Chaudhuri
We present a purely data-driven method to pinpoint generation plants that significantly contribute to poorly damped oscillations as part of post-event analysis. First, Extended Dyn…
Mitigating Load-Altering Attacks Against Power Grids Using Cyber-Resilient Economic Dispatch
Zhongda Chu, Subhash Lakshminarayana, Balarko Chaudhuri +1
Large-scale Load-Altering Attacks (LAAs) against Internet-of-Things (IoT) enabled high-wattage electrical appliances (e.g., wifi-enabled air-conditioners, electric vehicles, etc.)…
Value of Point-of-load Voltage Control for Enhanced Frequency Response in Future GB Power System
Jinrui Guo, Luis Badesa, Fei Teng +3
The need for Enhanced Frequency Response (EFR) is expected to increase significantly in future low-carbon Great Britain (GB) power system. One way to provide EFR is to use power el…