15 citations · 15 across the 6 of their papers we have counts for
6 papers · 1 filter
Modeling and Parametrization of Large-scale Hydrogen Electrolyzers for Transient and Frequency Stability Analysis
Mahmoud K. Abdelhamid, Lukas Sigrist, Álvaro Ortega
Hydrogen Electrolyzers (HEs), particularly Proton Exchange Membrane (PEM)-based systems, are flexible loads capable of providing grid ancillary services and enhancing the stability…
Sinusoidality Index
J. Gutiérrez Florensa, L. Sigrist, Á. Ortega +1
Maintaining sinusoidal or near-sinusoidal operating conditions in electrical systems is essential, as is their accurate assessment. This letter proposes a novel metric, namely the…
Theoretical and Experimental Limitations of RoCoF Estimation
Gutierrez-Florensa, F. Sanniti, D. Tedeschi +3
A precise estimation of the Rate of Change of Frequency (RoCoF) is crucial for secure power system operation. In fact, RoCoF is strictly related to the amount of the available phys…
Quasi Steady-State Frequency
Joan Gutierrez-Florensa, Alvaro Ortega, Lukas Sigrist +1
Accurate frequency estimation is critical for the control, monitoring and protection of electrical power systems, in particular, of systems with a high penetration of power electro…
Optimal Participation of Heterogeneous, RES-based Virtual Power Plants in Energy Markets
Oluwaseun Oladimeji, Alvaro Ortega, Lukas Sigrist +3
In this work, we present a detailed model of a Renewable Energy Source (RES)-based Virtual Power Plant (VPP) that participates in Day-Ahead Market (DAM) and Intra-Day Market (IDM)…
Generalized Model of VSC-based Energy Storage Systems for Transient Stability Analysis
Álvaro Ortega, Federico Milano
This paper presents a generalized energy storage system model for voltage and angle stability analysis. The proposed solution allows modeling most common energy storage technologie…