8 papers
Frequency Quality Metrics based on Second-Order Derivative and Autocorrelation
Taulant Kerci, Federico Milano
This industry-oriented paper originates from the observation that current frequency quality metrics utilized by transmission system operators (TSOs) fail to fully capture the dynam…
System-wide Dynamic Performance Metric for IBR-based Power Networks
Rodrigo Bernal, Taulant Kerci, Federico Milano
In power networks based on Inverter-Based Resources (IBRs), fast controllers cause frequency and voltage dynamics to overlap. Thus, it becomes critical to assess the overall dynami…
Frequency Quality Assessment of GFM and GFL Converters and Synchronous Condensers
Taulant Kerci, Federico Milano
This paper compares the impact of different conventional and emerging technologies and control strategies on frequency quality. We study, in particular, the long-term dynamic perfo…
A Comprehensive Approach to Evaluate Frequency Control Strength of Power Systems
Taulant Kerci, Federico Milano
This paper introduces the concept of "frequency control strength" as a novel approach to understand how different real-world power systems compare to each other in terms of effecti…
Impact of Power Fluctuations on Frequency Quality
Angel Vaca, Federico Milano
This paper analyzes how power injections affect frequency quality in power systems. We first derive a general expression linking active and reactive power injections at buses to th…
Asymmetry of Frequency Distribution in Power Systems: Sources, Estimation, Impact and Control
Taulant Kerci, Federico Milano
This paper analyses an emerging real-world phenomena in inverter-based renewable-dominated power systems, namely, asymmetry of frequency distribution. The paper first provides a ra…