ROSSI , Mansueto

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Hybrid systems at the local scale (from nanogrids to low voltage microgrids) that include renewables have experienced an extraordinary growth all over the world and have attracted the attention of both academies and industries to build economic and environmental appealing solutions based on innovative control architectures. These architectures...

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This paper faces the problem of the protection against overvoltages of atmospheric origin for modern electric mass-transit systems such as light-rail transportation systems (LRTS) and proposes a transmission-line (TL) model for the field-to-line coupling, which allows to evaluate the response of the supply system of a typical LRTS to a generic...

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A method for the evaluation of the capacitance matrix of a system of finite-length onductors is given. It is shown that the problem can be reduced to the solution of a convolution type integrodifferential equation system and an effective and accurate procedure to cope with this is described. The procedure first appfies the convolution theorem...

The general theory describing the electromagnetic field radiated by a lightning stroke over a conducting ground is presented in this paper. The derivation of the Green functions necessary to solve the problem is discussed in detail, and the determination of the expressions for the electromagnetic field components is carried out in a form that...

Appropriate channel allocation on each cell is one of the most challenging issues in setting up and operating a cellular system, both for its practical importance, as the correct reuse of the available frequencies is crucial to guarantee good quality of service and good operating conditions of filters and power amplifiers, and its inherent...

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One of the most complex tasks in setting up a GSM network is the appropriate choice of the set of channels to be used on each BTS (Base Transceiver Station, or "site"), so as to minimize as far as possible the interference inherently caused by the reuse of the same channels in other cells. The Channel Allocation Problem (CAP) is combinatorial,...

In this paper, we present a new formulation for the evaluation of the electromagnetic field levels in the near zone of a cellular radio base-station collinear array antenna. The algorithm allows to determine the real current distribution along each half-wave dipole forming the array for a given exciting function and it enables to take into...

A general method for the solution of dual integral-equation systems is discussed in the context of applications in engineering electromagnetics. The approach follows a formulation based on a Fourier-series expansion of the unknown function and a successive expansion in a Neumann series of the Fourier-series coefficients. It is characterized by...

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The evaluation of the total force of magnetic origin acting upon a body in a stationary magnetic field is often carried out using the so-called magnetic energy (or co-energy) method, which is based on the derivation of the magnetic energy (or co-energy) with respect to a virtual rigid displacement of the considered body. The application of this...

An equivalent circuit model for a transmission line illuminated by the field due to a lightning strike in the nearby is presented in this paper. Such model is derived by a line frequency domain analysis carried out with a full-Maxwell approach, which provides both the line impedance matrix and the open-circuit overvoltages induced by the...

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This paper presents ongoing research activities and technology upgrades carried out by the Power System Research team of the University of Genoa on the Smart City test-bed facilities installed at the Savona Campus. These facilities consist of a Smart Polygeneration Microgrid (SPM) feeding the Campus, of a Smart Energy Building (SEB) connected...

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