61 citations · 298 across the 17 of their papers we have counts for
17 papers
Enhancing Frequency Control through Rate of Change of Voltage Feedback
Federico Milano, Bibi Alhanjari, Georgios Tzounas
This letter proposes a simple and inexpensive technique to improve the frequency control of distributed energy resources. The proposed control consists in modifying the conventiona…
On the Emulation of Synchronous Machine Dynamics by Converter-Interfaced Generators
Georgios Tzounas, Federico Milano
This paper discusses the conditions that a device needs to satisfy to replicate the behavior of a conventional synchronous machine (SM) connected to a power network. The conditions…
Analysis of Wind Energy Curtailment in the Ireland and Northern Ireland Power Systems
Manuel Hurtado, Taulant Kerci, Simon Tweed +3
The All-Island power system (AIPS) of Ireland and Northern Ireland currently accommodates up to 75% of system non-synchronous penetration (SNSP) (e.g., wind). These unprecedented l…
Frequency Quality in Low-Inertia Power Systems
Taulant Kerci, Manuel Hurtado, Mariglen Gjergji +3
This paper analyses the issue of frequency quality in low-inertia power systems. The analysis is based on a real-world large-scale low-inertia power system namely, the All-Island t…
Taxonomy of Power Converter Control Schemes based on the Complex Frequency Concept
Dionysios Moutevelis, Javier Roldan-Perez, Milan Prodanovic +1
This paper proposes a taxonomy of power converter control schemes based on the recently proposed concept of complex frequency. This quantity captures local frequency variations due…
Using Differential Geometry to Revisit the Paradoxes of the Instantaneous Frequency
Federico Milano, Georgios Tzounas, Ioannis Dassios +2
This paper proposes a general framework to interpret the concept of Instantaneous Frequency (IF) in three-phase systems. The paper first recalls the conventional frequency-domain a…
On the Calculation of the Variance of Algebraic Variables in Power System Dynamic Models with Stochastic Processes
Muhammad Adeen, Federico Bizzarri, Davide del Giudice +4
This letter presents a technique to calculate the variance of algebraic variables of power system models represented as a set of stochastic differential-algebraic equations. The te…
Inertia Estimation Through Covariance Matrix
Federico Bizzarri, Davide del Giudice, Samuele Grillo +3
This work presents a technique to estimate on-line the inertia of a power system based on ambient measurements. The proposed technique utilizes the covariance matrix of these measu…
The Frenet Frame as a Generalization of the Park Transform
Federico Milano
The paper proposes a generalization of the Park transform based on the Frenet frame, which is a special set of coordinates defined in differential geometry for space curves. The pr…
Small-Signal Stability Analysis of Numerical Integration Methods
Georgios Tzounas, Ioannis Dassios, Federico Milano
The paper provides a novel framework to study the accuracy and stability of numerical integration schemes when employed for the time domain simulation of power systems. A matrix pe…
Applications of the Frenet Frame to Electric Circuits
Federico Milano, Georgios Tzounas, Ioannis Dassios +1
The paper discusses the relationships between electrical quantities, such as voltages, currents, and frequency, and geometrical ones, namely curvature and torsion. The proposed app…
Complex Frequency
Federico Milano
The paper introduces the concept of complex frequency. The imaginary part of the complex frequency is the variation with respect of a synchronous reference of the local bus frequen…
A Geometrical Interpretation of Frequency
Federico Milano
The letter provides a geometrical interpretation of frequency in electric circuits. According to this interpretation, the frequency is defined as a multivector with symmetric and a…
Nonlinear Virtual Inertia Control of WTGs for Enhancing Primary Frequency Response and Suppressing Drive-Train Torsional Oscillations
Bi Liu, Qi Huang, Junbo Zhao +2
Virtual inertia controllers (VICs) for wind turbine generators (WTGs) have been recently developed to compensate for the reduction of inertia in power systems. However, VICs can in…
On the Modeling and Simulation of Anti-Windup Proportional-Integral Controller
Hantao Cui, Yichen Zhang, Federico Milano +1
This paper investigates the chattering and deadlock behaviors of the proportional-integral (PI) controller with an anti-windup (AW) limiter recommended by the IEEE Standard 421.5-2…
Construction of SDE-based wind speed models with exponential autocorrelation
Rafael Zárate Miñano, Federico Milano
This paper provides a systematic method to build wind speed models based on stochastic differential equations (SDEs). The resulting models produce stochastic processes with a given…
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…