MESTRINER D.

Hybrid Electric Vehicles are gaining more and more popularity nowadays and thanks to the recent performance improvements of the electric components they can achieve noticeable energy savings. The storage system plays a key role in this scenario, in particular high power permeable storage systems as supercapacitors enable the series architecture...

Chattering alleviation in Sliding Mode control has attracted many researchers in the last decades providing many valuable contributions to this field. One possible way to address this problem is by means of replacing a discontinuous function in the command law definition with an interpolating one, introducing the concept of the boundary layer...

The lightning return stroke channel current modelling is one of the most discussed topics in Electromagnetic Compatibility due to its difficult to be measured. In literature, the most used are the engineering models, based mainly on defining a function that involves the propagation and the attenuation of the current along the return stroke...

The electromagnetic transients caused by lightning events are one of the most known causes of faults in the transmission lines. Many papers focused their attention on the evaluation of the effects caused by lightning events on a transmission line, but an overall analysis that takes into account, a real power system is rare to be found. In this...

Overhead distribution lines can be seriously damaged from lightning events because both direct and indirect events can cause flashovers along the line. The lightning performance of such power lines is usually computed neglecting the effect of corona discharge along the conductors: in particular, the corona discharge determined by the indirect...

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One of the most important and studied topics in lightning research is the development of suitable models for the return stroke current and electromagnetic fields. In particular, when dealing with the so-called engineering models, the definition of a function that expresses the attenuation of the current while flowing in the discharge channel...

This paper proposes an innovative control technique for the primary regulation of an islanded microgrid (MG) composed only by power converters and without any rotating electrical machine. The proposed method is based on the Model Predictive Control (MPC) technique and it is applied to an islanded portion of the Smart Polygeneration Microgrid...

Dealing with realistic networks, the solution of lightning electromagnetic field coupling to transmission lines is generally obtained through a Finite-Difference Time-Domain (FDTD) algorithm interfaced with an electromagnetic simulator. As well known, the stability of the FDTD scheme is determined by the Courant stability condition. In this...

Reactive power sharing is one of the main issues in the control and operation of an autonomous Microgrids (MGs), especially for MGs composed by power generation interfaced with the MG distribution by means of Power Electronic Converters (PEC). Among the various MG control techniques, the droop is the one that has been widely applied thanks to...

The article provides a new channel-based current function, which aims at faithfully reproducing the salient parameters of lightning currents. All the model parameters can be set in a fully analytical way, guaranteeing the possibility of changing them (according to the available measured data) without any numerical procedures. Closed-form...

The geolocation and analysis of lightning discharges are fundamental in a wide variety of applications. Typical users of lightning information are meteorological agencies, aviation or air traffic authorities, land management entities, electric power transmission and distribution operators and other public utilities. Nowadays the lightning...

The geolocation and analysis of lightning discharges are fundamental in a wide variety of applications. Typical users of lightning information are meteorological agencies, aviation or air traffic authorities, land management entities, electric power transmission and distribution operators and other public utilities. Nowadays the lightning...

This paper aims at validating a code for the evaluation of lightning-induced overvoltages developed in the PSCAD-EMTDC environment using experimental results obtained on an experimental facility deployed at the University of São Paulo, Brazil that emulates the return stroke channel with a helical antenna. For this reason, suitable expressions...

This work provides an approach for speeding up the evaluation of lightning ElectroMagnetic (EM) fields in the case of a finite soil conductivity. The soil conductivity is taken into account through the well-known Cooray-Rubinstein (CR) approximation, which corrects the radial term of the electric field. A comparative analysis with some of the...

Power system restoration is usually achieved by means of diesel generators (DG) which energize the grid following a bottom-up approach. This work deals with the capability of a Battery Energy Storage System (BESS) to energize a large traditional power plant from blackout. The analysis is proposed taking into account overcurrent issues...

Lightning is one of the most dangerous natural phenomena, able to produce high impacts and damage on human beings and infrastructures (civil, electric, telecommunications, etc.) even though perception of it as a hazard is low. The aim of this study is to provide a detailed analysis of lightning occurrence throughout the Italian territory to...