Daniele Gallo

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A new desynchronized processing technique for harmonic and interharmonic analysis that has general validity and results fully compatible with the IEC standard is presented. This technique is based on a double-stage signal processing procedure: In the first stage, the harmonic components are accurately estimated via interpolations in frequency domain and(More)
The harmonic and interharmonic analysis recommendations contained in the latest International Electrotechnical Commission (IEC) standards on power quality are considered. The spectral leakage problems due to synchronization errors of the analyzed waveforms with the window widths adopted are analyzed. Improvements of the signal processing recommended by the(More)
Waste prevention has been addressed in the literature in terms of the social and behavioural aspects, but very little quantitative assessment exists of the environmental benefits. Our study evaluates the environmental consequences of waste prevention on waste management systems and on the wider society, using life-cycle thinking. The partial prevention of(More)
Measurement of light flicker according to current standard EN ISO 61000-4-15 is performed through measurement of voltage variations filtered by a model of a 60 W/230 V incandescent lamp. Hence, differences in current illumination systems technology can determine discrepancies between light flicker measurements performed under the same voltage flicker. In(More)
This paper presents an implementation of a test system for advanced calibration and performance analysis of flickermeters. Tests include not only the complete set of test points reported in IEC Standard 61000-4-15, but also an array of different voltage fluctuations - related to common power quality issues - that may be encountered in actual use. This is(More)
As it is well known, transducers are the most important components of a measurement system: they converts the physical quantity, which has to be measured, in an electrical one, processed in turns by electronic instruments. It is also known that they are the major source of uncertainty, which it is desirable to be as low as possible; obviously, their costs(More)
The advance in power electronics causes, over the years, an increasing diffusion of nonlinear loads. Moreover, electrical generation systems are going to include a growing amount of solar and wind energy, characterized by time-variant flow of energy and, very often, with a relevant distortion. These aspects give more and more emphasis to the monitoring of(More)
In this paper, the authors propose a methodology to guide the verification of single-phase energy meters under sinusoidal and nonsinusoidal conditions. At first, a brief review is presented about definitions of the quantities that should be measured or monitored for revenue purposes and their relationship with electrical quantities that are recognized to be(More)
In this paper, the aim of the authors is to propose a multisensor network architecture for distributed power quality measurements, based on the use of low cost smart Web sensors and on a collaborative mobile agent mechanism that allow an easy remote access, for a generic user, to the measurement results. The network has a full decentralized processing(More)
The smart grid approach is envisioned to take advantage of all available modern technologies in transforming the current power system to provide benefits to all stakeholders in the fields of efficient energy utilisation and of wide integration of renewable sources. Energy storage systems could help to solve some issues that stem from renewable energy usage(More)