Search results for "Smart"
showing 10 items of 938 documents
Smart grids: the next future of electrical distribution systems
2011
Currently, the design and operation criteria for electrical distribution networks are fastly changing due to some factors; among these, the progressive penetration of Distributed Generation(DG) is destined to cause deep changes in the existing networks, no longer considered as passive terminations of the whole electrical system. Moreover, the increasing application of Information Communication Technologies (ICT) will allow the implementation of the so called “smart grids”, determining new interesting scenarios. In the paper the problems and the potential benefits of DG, the possible new electrical distribution system models and the major research projects on smart grids are faced and report…
DEVELOPMENT ANALYSIS OF SMART DISTRIBUTION GRIDS IN PRESENCE OF DISTRIBUTED GENERATION
The integration of distributed generation (DG) units in power distribution network has become increasingly attractive multi-faceted paradigm as economic and environmental factors drive new technologies to be more efficient and less polluting than their earlier counterparts. The installation of DGs impacts critically on the planning and operating characteristics of the distribution network. Type, location, number and capacity of DG are essential factors for studying the effect of DGs on the system behavior. Some possibilities to handle grid planning and operating issues are addressed in this thesis. Firstly, the effect of DG on the power losses of a distribution network is introduced and the…
Synchronizing Interactions Between Different Types of Grid-Forming Converters in Smart Grids
2022
The work investigates the transient synchronizing interactions between different types of grid-forming controls. Two well-known grid-forming schemes are implemented and considered for analysis: a droop-based control and a swing-based control. The two controls are examined for a temporary loss of synchronism. The analysis is performed considering two different conditions for the grid interconnecting the converters: a resistive-inductive grid and a mainly inductive grid. The first case corresponds to actual conditions in low and medium voltage applications. The second case is realized with the implementation of a virtual reactance in the grid-forming control scheme. The analysis of the result…
A blockchain platform for Demand Response in Mediterranean islands: a smart contract for remuneration
2022
The Blorin project started at the end of 2019 to support the implementation of a blockchain platform to support the energy services provision from end users by means of Demand Response and Vehicle to Grid programs. The experimental part of the project is being carried out on two Mediterranean islands and inside the University campus in Palermo. Customized smart contracts have been designed to support the active participation of end users to regulation services for the two weak electrical grids of the islands in the view of a deep penetration of renewable energy in the two energy systems. In particular, the smart contract for remuneration accounts for the very special energy situation of isl…
A HEURISTIC LOAD MANAGEMENT APPROACH FOR DOMESTIC APPLIANCES
2014
In this paper, an innovative heuristic for domestic loads management is proposed. The method is straightforward and easy to be implemented on embedded systems. The idea is to start from the mathematical modeling of loads and to perform a profile based scheduling, namely loads will try to fit a given schedule. The solution of the scheduling is based on a rolling horizon of 24 hours and is recomputed when an ON signal is provided to the considered appliance. Experimental results show the pertinence of the approach and how it may be profitably used to lower the energy costs for the end user.
Distributed Demand-Response Certification using Blockchain Technology
2021
Atlante delle smart city - Comunità intelligenti europee ed asiatiche
2015
Dopo una sezione introduttiva che tratta le definizioni, le politiche e gli strumenti utilizzati a livello europeo per lo sviluppo e la classificazione di una smart city, il volume presenta un ricco atlante delle smart city, una selezione di esempi di città, europee e asiatiche, che hanno sperimentato tecnologie, azioni e strategie in grado di renderle “intelligenti”.
Smart Cities Atlas Western and Eastern Intelligent Communities
2016
The book discusses the concept of the smart city, and is based on a multi-service and multi-sectoral approach to urban planning, including various urban functions and the human capital of cities. The work is divided into three parts. The first is an introductory section which covers definitions, policies and tools used at European level for the development and classification of a smart city. The second presents a selection of examples of Western and Eastern communities, which experienced technologies and strategies that have made them smart. The third describes in detail the main three possible approaches (economical, technological and social) to the smart city concept which are the focus a…
Alcuni indici per la valutazione dei sistemi di controllo per l’illuminazione
2018
Gli edifici smart hanno visto negli ultimi anni una sempre più ampia diffusione. Per questo motivo ricercatori, progettisti e tecnici, hanno posto una crescente attenzione sull’utilizzo di sistemi di controllo automatici per l’illuminazione. Questa tipologia di sistemi gioca, infatti, un ruolo chiave nel raggiungimento di significativi riduzioni dei consumi elettrici e dei benefici legati all’utilizzo della luce naturale (ad esempio il comfort visivo degli occupanti, il benessere e la produttività). È prassi comune, durante la fase progettuale, correlare il risparmio energetico con la disponibilità della luce diurna, poiché risulta un obiettivo rilevante per progettisti e architetti.