14 citations · 15 across the 17 of their papers we have counts for
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A Dynamic Phasor Framework for Analysis of Subsynchronous Oscillations in Multi-Machine Systems with IBRs and Large Loads
Fiaz Hossain, Nilanjan Ray Chaudhuri, Constantino M. Lagoa +3
Although the electromagnetic transient (EMT) framework can capture subsynchronous oscillations (SSOs), it faces scalability issues for large-scale systems. Thus motivated, we propo…
Limiting the Impact of AI Data Centers on Fatigue Life of Thermal Turbine Generators in the Grid: A Frequency-Domain Approach
Fiaz Hossain, Nilanjan Ray Chaudhuri, Alok Sinha +2
A framework is established that assesses the impact of variations in artificial intelligence (AI) data center (DC) loads on the fatigue damage of steam/gas turbines of the synchron…
A Dynamic Phasor Framework for Analysis of IBR-Induced SSOs in Multi-Machine Systems
Fiaz Hossain, Nilanjan Ray Chaudhuri, Constantino M. Lagoa
We propose a generalized dynamic phasor (DP) framework to analyze inverter-based resources (IBRs) connected to multi-machine systems under balanced and unbalanced conditions. It ca…
A Dynamic Phasor Framework for Analysis of Grid-Forming Converter Connected to Series-Compensated Line
Fiaz Hossain, Nilanjan Ray Chaudhuri
A dynamic phasor (DP) framework for time-domain and frequency-domain analyses of grid-forming converters (GFCs) connected to series-compensated transmission lines is proposed. The…
Discovery and Characterization of Cross-Area and Intra-Area SSOs Sensitive to Delay in Droop Control of Grid-Forming Converters
Lilan Karunaratne, Nilanjan Ray Chaudhuri, Amirthagunaraj Yogarathnam +1
Subsynchronous oscillations (SSOs) involving grid-forming converters (GFCs) are in a less familiar territory of power system dynamics. This letter reports a new phenomenon namely c…
A Case Study on Modeling Adequacy of a Grid with Subsynchronous Oscillations Involving IBRs
Lilan Karunaratne, Nilanjan Ray Chaudhuri, Amirthagunaraj Yogarathnam +1
A case study on modeling adequacy of a grid in presence of renewable resources based on grid-forming converters (GFCs) is the subject matter of this paper. For this purpose, a 4-ma…
An Approach to Evaluate Modeling Adequacy for Small-Signal Stability Analysis of IBR-related SSOs in Multimachine Systems
Lilan Karunaratne, Nilanjan Ray Chaudhuri, Amirthagunaraj Yogarathnam +1
Time-varying phasor-based analysis of subsynchronous oscillations (SSOs) involving grid-following converters (GFLCs) and its benchmarking with electromagnetic transient (EMT) model…
An Approach for Fast Cascading Failure Simulation in Dynamic Models of Power Systems
Sina Gharebaghi, Nilanjan Ray Chaudhuri, Ting He +1
The ground truth for cascading failure in power system can only be obtained through a detailed dynamic model involving nonlinear differential and algebraic equations whose solution…
Extending the Dissipating Energy Flow Method to Flexible AC Transmission Systems
Kaustav Chatterjee, Sayan Samanta, Nilanjan Ray Chaudhuri
In recent years, the dissipating energy flow (DEF) method has emerged as a promising tool for online localization of oscillation sources. In literature, the mathematical foundation…
Dissipation of Oscillation Energy and Distribution of Damping Power in a Multimachine Power System: A Small-signal Analysis
Kaustav Chatterjee, Nilanjan Ray Chaudhuri
This paper revisits the concept of damping torque in a multimachine power system and its relation to the dissipation of oscillation energy in synchronous machine windings. As a mul…
Topology Estimation Following Islanding and its Impact on Preventive Control of Cascading Failure
Sai Gopal Vennelaganti, Nilanjan Ray Chaudhuri, Ting He +1
Knowledge of power grid's topology during cascading failure is an essential element of centralized blackout prevention control, given that multiple islands are typically formed, as…
On Stability Analysis of Power Grids with Synchronous Generators and Grid-Forming Converters under DC-side Current Limitation
Sayan Samanta, Nilanjan Ray Chaudhuri
Stability of power grids with synchronous generators (SGs) and renewable generation interfaced with grid-forming converters (GFCs) under dc-side current limitation is studied. To t…