Search results for "COMMUNICATION"

Innovative Solutions for the Integration of Renewable Energies on Tunisian and Sicilian Electrical Grids

2022

The rapid spread of distributed generation from renewable energy sources, combined with their unpredictable behavior, requires the continuous monitoring and control by the Distribution System Operator, in order to guarantee the stability and efficiency of the distribution network. Thus, in this paper a new measurement and communication architecture is proposed, which foresees the use of innovative devices and different technology-oriented solutions, even redundant ones, which allows the transition from passive to active electricity distribution network, with minimal structural changes. The architecture has been developed in the framework of the SInERT project (Italy-Tunisia cross-border coo…

Sviluppo di dispositivi elettronici di misura innovativi per la gestione delle Smart Grid attraverso un'opportuna infrastruttura di comunicazione

2014

On the model of MV power line communication system in the case of line to line transmission

2009

A Medium Voltage Cables Model for Power Line Communication

2009

The aim of this paper is the development of a theoretical model of medium-voltage (MV) cables in the frequency range of 25-200 kHz, which can be easily implemented in the Simulink environment. Two transmission-line configurations: 1) line-ground and 2) line-line were considered. The model requires the knowledge of the transmission channel parameters in the frequency domain. Thus, a characterization of MV cables in the two transmission-line configurations by means of experimental measurements was performed on commonly used MV cables, RG7H1R, of different sections, 95 mm2 and 185 mm2 with an aluminum core and copper shielded. To validate the model, a comparison between the attenuation constan…

STUDIO, PROGETTAZIONE E REALIZZAZIONE DI SISTEMI DI MISURA, DI CONTROLLO E DI COMUNICAZIONE DEDICATI ALLE SMART GRIDS

L’attività di ricerca descritta nella presente tesi di dottorato si inquadra nell’ambito dello sviluppo di nuove tecnologie e sistemi di misura di tipo distribuito per la gestione delle smart grids, il miglioramento dei livelli di power quality e l’integrazione della generazione distribuita (GD) e dei sistemi di accumulo (SA) da fonti di energia rinnovabili nelle reti di distribuzione. In particolare, la crescente presenza di GD nelle reti a media e bassa tensione (MT/BT) crea possibili criticità per la protezione e l’automazione della rete, la qualità del servizio, la regolazione di tensione, etc. Nello specifico nascono diverse problematiche quali variazioni di tensione e di frequenza, pr…

An Innovative Power Line Communication solution For Medium Voltage Smart Grids Applications

2018

This paper summarizes the authors research activity concerning the design, modeling and experimental characterization of a new coupling system for medium voltage (MV) narrow band power line communications (NB-PLC). The proposed solution has been patented by authors and it exploits the capacitive divider of voltage detecting systems (VDSs) normally used to reveal the mains voltage presence, thus avoiding the use of dedicated MV couplers. In the following, the modeling of the VDS capacitive divider is presented and the interface card design is described, based on simulation of the whole PLC transmission channel. Laboratory tests are also presented. Finally, the results are shown of an on-fiel…

A Line Impedance Calculator Based on a G3 PLC Modem Platform

2022

Power line communication (PLC) is one of the most today used technologies for both automatic meter reading and many other smart grid applications. In this framework, a characterization of the electrical network in the PLC frequency range is needed in terms of impedance measurement and received signal level. This can allow choosing the most suitable and less noisy frequency ranges for PLC transmission. Usually, these characterization measurements are performed with dedicated instrumentation and in the absence of mains voltage. This article wants to propose an alternative solution, which allows these kinds of measurements to be performed using electronic boards currently used as on-field appl…

Culture and perceptions of power in teacher-student communication

2011

The objective of this study was to find out if national culture impacts the phenomenon of power as it is found in teacher-student communication at the University of Jyväskylä. The study is pertinent and relevant because of the increasingly rapid internationalization that is happening in the Finnish higher education system. Understanding aspects of intercultural teacher-student communication will be important for the future. A qualitative research process was chosen for this study and the data was collected by conducting in-depth interviews with 10 international students. They were asked about their experiences, perceptions and feelings while communicating with Finnish professors. Analysis a…

Vom Ambo in der Kirche zum Cyberambo in den Medien Auf der Suche nach der Sprache der Verkündigung vom Evangelium in der Gegenwart am Beispiel der Ak…

2018

Fenomen o. Adama Szustaka OP tkwi w tym, że mówi do ludzi, zwłaszcza młodych, ich językiem, obrazowo i lekko, choć na poważne tematy. Potraf on łączyć sferę sacrum i profanum, bogato czerpiąc z codziennego świata i przekładając to na sprawy duchowe. Gdy dodamy do tego jego zdolność mówienia o sprawach najtrudniejszych prostym, dowcipnym, zrozumiałym dla każdego językiem, nie dziwi, skąd bierze się jego popularność u ludzi młodych. Działalność internetowa o. Szustaka ma zarówno zwolenników, jak i krytyków. Zarzuca się mu celebrytyzm, posądza o płytkość przekazu teologicznych treści. W obliczu swoistego internetowego fenomenu o. Szustaka jednak nie można przejść obojętnie. „Cyberambona” o. Sz…

Unfair play? Video games as exploitative monetized services: An examination of game patents from a consumer protection perspective

2019

Video games as a consumer product have changed significantly with the advent of in-game purchasing systems (e.g., microtransactions, ‘loot boxes’). This review examines consumer protections related to in-game purchasing by anticipating some of the potential design strategies that might contribute to higher risk consumer behavior. Attention was directed towards the analysis of patents for potential in-game purchasing systems, with 13 identified on Google Patents. The design features were analysed in relation to the consumer rights and guarantees described in the terms of use agreements of the patent assignees. The analysis revealed that some in-game purchasing systems could be characterized …