4 papers
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…
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…