6 papers
Report on Stability Analysis of Islanded Power Systems with Grid-Forming Converters
Anup Joshi, Luis A. Garcia-Reyes, Qingyuan Gong +3
Islanded power systems are inherently challenging to operate due to limited interconnection, low inertia, and weak short-circuit strength. As renewable and inverter-based resources…
A New Index for Quantifying Stability Adaptation Effort in Power Electronics-Dominated Power Systems Based on Frequency-Domain Impedance Identification
Luis A. Garcia-Reyes, Macarena Martin-Almenta, Edgar Nuño-Martínez +4
The increasing use of converter based resources has made stability assessment in modern power systems more challenging, particularly because many devices are available only as blac…
Impedance-Based Sensitivity Analysis for Stability Enhancement of LCC-HVDC Links Connected to Weak Grids Using Grid-Forming Converters
Luis A. Garcia-Reyes, Anup Joshi, Javier Renedo +5
This paper presents a frequency-domain, impedance-based sensitivity methodology for stability assessment and enhancement of line-commutated converter HVDC (LCC-HVDC) links operatin…
Systematic Gray-Box Identification Methodology for Voltage Source Converters
Nicolae Darii, Luis A. Garcia-Reyes, Ignasi Ventura Nadal +4
This paper introduces a systematic gray-box identification framework for voltage-source converter models based solely on terminal time-series data. The proposed approach combines a…
Enabling Small-Signal Stability Analysis of Black-Box Voltage Source Converters in Large-Scale Modern Power Systems
Luis A. Garcia-Reyes, Josep Arévalo-Soler, Oriol Gomis-Bellmunt +5
Modern power systems increasingly rely on power electronic converters, yet many of these devices are provided as black-box models, limiting the applicability of conventional small-…
SIaD-Tool: A Comprehensive Frequency-Domain Tool for Small-Signal Stability and Interaction Assessment in Modern Power Systems
Luis A. Garcia-Reyes, Oriol Gomis-Bellmunt, Eduardo Prieto-Araujo +2
This paper presents SIaD-Tool, an open-source frequency-domain (FD) scanning solution for stability and interaction assessment in modern power systems. The tool enables multi-seque…