Publications de Daniele Colangelo

Characterization of Uncertainty Contributions in a High-Accuracy PMU Validation System

Mario Paolone, Asja Derviskadic, Guglielmo Frigo, Daniele Colangelo, Jean-Pierre Braun

The eective deployment of Phasor Measurement Units (PMUs) in Distribution Networks (DNs) requires an enhancement in terms of estimation accuracy beyond the limits of IEEE Std C37.118.1 (IEEE Std), aiming at a Total Vector Error (TVE) in the order of 0.0x% ...

2019

Definition of Accurate Reference Synchrophasors for Static and Dynamic Characterization of PMUs

Mario Paolone, Asja Derviskadic, Guglielmo Frigo, Marco Pignati, Daniele Colangelo

The calibration of phasor measurement units (PMUs) consists of comparing coordinated universal time time-aligned phasors (synchrophasors) measured by the PMU under test, against reference synchrophasors generated through a PMU calibrator. The IEEE Standard ...

Institute of Electrical and Electronics Engineers2017

Definition and assessment of reference values for PMU calibration in static and transient conditions

Mario Paolone, Guglielmo Frigo, Marco Pignati, Daniele Colangelo

The calibration of Phasor Measurement Units (PMUs) consists of comparing Coordinated Universal Time (UTC) time-stamped phasors (synchrophasors) estimated by the PMU under test, against reference synchrophasors generated through a PMU calibrator. The IEEE S ...

IEEE2016

Architecture and characterization of a calibrator for PMUs operating in power distribution systems

Mario Paolone, Paolo Romano, Marco Pignati, Lorenzo Zanni, Daniele Colangelo, Jean-Pierre Braun

In recent years, the Phasor Measurement Unit (PMU) technology is rapidly evolving towards the potential deployment also in power distribution systems (DSs). In general, this specific field of applications requires PMUs whose accuracy levels are beyond thos ...

IEEE2015

Impact of the Normal Zone Propagations Velocity of High Temperature Superconducting Coated Conductors on Resistive Fault Current Limiters

Daniele Colangelo, Bertrand Dutoit, Bertrand Dutoit

The engineering critical current (Ic) of the high temperature superconducting coated conductors (HTS-CCs), today available on the market, is not a uniform parameter and varies significantly along the length of the conductors. Moreover, commercial HTS-CCs h ...

IEEE Institute of Electrical and Electronics Engineers2015

Impact of synchrophasor measurement types and uncertainties on the accuracy of distribution system linear state estimators

Mario Paolone, Lorenzo Zanni, Sidi-Rachid Cherkaoui, Daniele Colangelo

The paper aims at assessing the effects of combined voltage and/or current synchrophasor measurements, and their associated uncertainties, on the accuracy of state estimators adopted in distribution systems. Such an assessment is first carried out with res ...

IEEE2015

Heat transfer monitoring between quenched high-temperature superconducting coated conductors and liquid nitrogen

Daniele Colangelo, Bertrand Dutoit, Bertrand Dutoit

High-temperature superconducting coated conductors (HTS-CCs) are good candidates for resistive superconducting fault current limiter (RSFCL) applications. However, the high current density they can carry and their low thermal diffusivity expose them to the ...

2015

Analysis of the influence of the normal zone propagation velocity on the design of resistive fault current limiters

Daniele Colangelo, Bertrand Dutoit, Bertrand Dutoit

Commercial high-temperature superconducting coated conductors (HTS-CCs) have low thermal diffusivity and nonuniform critical current density. These two factors lead commercial HTS-CCs to a partial quench when they are subjected to a transport current aroun ...

Iop Publishing Ltd2014

Modelling of 2G HTS Coated Conductors for Fault Current Limiter Applications

Daniele Colangelo

Thanks to recent scientific achievements, second generation high-temperature superconductor coated conductors (HTS-CCs) can carry enormous current densities with reduced losses. In addition, they are able to switch from a negligible resistivity state to a ...

EPFL2013

Inhomogeneity effects in HTS coated conductors used as resistive FCLs in medium voltage grids

Daniele Colangelo, Bertrand Dutoit, Bertrand Dutoit

For resistive fault current limiters (RFCLs) based on high temperature superconducting coated conductors (HTS-CCs), inhomogeneity, in terms of critical current and geometrical imperfections such as stabilizer and substrate thicknesses, plays a very importa ...

Institute of Physics2012