12 papers
Use of the Common Information Model (IEC 61970) for Standardized Data Exchange in HVDC Digital Twin Systems
Ferran Bohigas-Daranas, Arkadius Burek, Eduardo Prieto-Araujo +1
Digital Twins (DTw) are emerging as transformative tools for High Voltage Direct Current (HVDC) transmission systems, enabling real-time monitoring, predictive maintenance, and ope…
Power Flow Feasibility Assessment Using Variational Graph Autoencoders
Ferran Bohigas-Daranas, Hamid Latif-Martinez, Eduardo Prieto-Araujo +2
Data-driven methods, including graph neural networks, have been studied for accelerating power flow calculations in recent years, but very little attention has been paid to the sol…
Distributed Air-Gap Flux and Rotor-Current Fusion for Operating-Regime Identification in a 10-MW Kaplan Hydrogenerator
Eduardo Jr Piedad, Rafel Roig, Xavier Escaler +2
Reliable monitoring of hydroelectric generators requires descriptors that capture both electrical loading and electromagnetic field behavior. This work investigates operating-regim…
Early Anomaly-Onset Detection based on Wigner--Ville Distribution Slice Spectra: A Transmission-Grid Test Case
Eduardo Jr Piedad, Eduardo Prieto-Araujo, Oriol Gomis-Bellmunt
Operational disturbance monitoring in power networks requires decisions to be made from waveform windows as they arrive, rather than from completed records after the event. This st…
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-…