Practical Framework for Frequency Stability Studies in Power Systems With Renewable Energy Sources. - Diego Ortiz-Villalba; Claudia Rahmann; Ricardo Álvarez; Claudio A. Cañizares; Christoph Strunck (IEEE Access, 2020)

Methodological Approach for Defining Frequency Related Grid Requirements in Low-Carbon Power Systems. - Claudia Rahmann; Sebastián Ignacio Chamas; Ricardo Álvarez; Héctor Chávez; Diego Ortiz-Villalba; Yaroslav Shklyarskiy (IEEE Access, 2020)