36 research outputs found
High Data Rate Narrowband PLC Communication based on OFDM
Tato bakalářská práce se zabývá úzkopásmovou PLC komunikací. V práci je popisována historie, princip úzkopásmové komunikace a popis čtyř dostupných úzkopásmových standardů (PRIME, G3-PLC, G.hnem, IEEE P1901.2) s jejich porovnáním. V další části jsou popisována experimentální měření, která jsou prováděna v domácím prostředí za použití dostupných modemů TMDSPLCKIT od firmy Texas Instruments, MT39-L1-ver.R modemů od firmy ModemTec a EVALKITST7580-1 od firmy STMicroelectronics.This bachelor project is about narrowband PLC communication. In this project is described history, principle of narrowband communication and description of four available narrowband standards (PRIME, G3-PLC, G.hnem, IEEE P1901.2) with their comparisons. In the next part are described the experimental measurements, that are performed in home environment with use of the TMDSPLCKIT modems from the Texas Instruments company, MT39-L1-ver.R modems from the ModemTec company and EVALKITST7580-1 modems from the STMicroelectronics company.
Paving the road toward Smart Grids through large-scale advanced metering infrastructures
Upgrading current electricity grid to the so-called Smart Grid represents one of the major engineering challenges ever. Hence, the road toward the Smart Grid will be long and needs to be paved gradually, certainly driving the next wave of research and innovation in both the energy and the ICT (Information and Communications Technologies) sectors. Currently, the earliest stages of such a complex project are being undertaken and AMI (Advanced Metering Infrastructures) stand out as the first steps toward the Smart Grid. The Spanish R&D (Research and Development) demonstration project PRICE-GEN aims to be a flagship AMI project at both national and international level. It is focused on increasing the awareness of the status of the low voltage power distribution network through an optimal and interoperable communications architecture which provides detailed information on customers' consumption and generation. The project entails the deployment of over 200,000 smart meters in the area of Madrid, such a pilot scheme being also used as reference in other European R&D projects, such as the IGREENGrid (IntegratinG Renewables in the European Electricity Grid). This paper presents the communications architecture and technologies which are deployed in the field, analyzing how they fit some specific Smart Grid communications requirement. In addition, the paper describes in detail the pilot itself along with the services which are currently been delivered as well as with the foreseen ones. Finally, the main trends in AMI from the ICT perspective are also discussed.This work has been partly funded by the Spanish Ministry of Economy and Competitiveness through the INNPACTO Programme under the project PRICE-GEN (IPT-2011-1507-920000).
The authors would like to thank the support and collaboration of all the partners of the PRICE-GEN consortium: Arteche, Centro de Investigación de Recursos y Consumos Energéticos, Current Iberia, Iberdrola Distribución, Universidad Carlos III de Madrid, Unión Fenosa Distribución, and ZIV Metering Solutions
SMART GRIDS LABORATORIES INVENTORY 2015
A smart electricity grid opens the door to a myriad of new applications aimed at enhancing security of supply, sustainability and market competitiveness. Gathering detailed information about smart grid laboratories activities represents a primary need. In order to obtain a better picture of the ongoing Smart Grid developments, after the successful smart grid project survey initiated in 2011, we recently launched a focused on-line survey addressed to organisations owning or running Smart Grid laboratory facilities. The main objective is to publish aggregated information on a regular basis in order to provide an overview of the current facilities, to highlight trends in research and investments and to identify existing gaps.JRC.F.3-Energy Security, Systems and Marke
Protocolli Power Line Communications per applicazioni Smart Grid
In questa tesi verranno analizzati alcuni protocolli a banda larga progettati per offrire, mediante l'utilizzo di tecnologie Power Line Communications (PLC), servizi necessari per l'implementazione di una rete Smart Grid. Smart Grid si riferisce ad un progetto di sviluppo della rete elettrica odierna, che integri sistemi di raccolta dati, monitoraggio e controllo.
Varie tecnologie sono state proposte per fornire il supporto informativo necessario a Smart Grid per operare, tecnologie che dovevano soddisfare principalmente al requisito di essere economicamente vantaggiose, oltrech\'e affidabili. Tra le varie tecnologie due si sono imposte come le maggiormente promettenti: la tecnologia wireless e PLC.
Entrambe offrono l'infrastuttura richiesta da Smart Grid, ciascuna con i propri pregi e difetti. Questa tesi analizza la tecnologia PLC e in particolare il protocollo HomePlug Green PHY e la direttiva ITU-T G.h
Smart grid technologies : communication technologies and standards
For 100 years, there has been no change in the basic
structure of the electrical power grid. Experiences have shown
that the hierarchical, centrally controlled grid of the 20th Century
is ill-suited to the needs of the 21st Century. To address the
challenges of the existing power grid, the new concept of smart
grid has emerged. The smart grid can be considered as a modern
electric power grid infrastructure for enhanced efficiency and
reliability through automated control, high-power converters,
modern communications infrastructure, sensing and metering
technologies, and modern energy management techniques based
on the optimization of demand, energy and network availability,
and so on. While current power systems are based on a solid
information and communication infrastructure, the new smart
grid needs a different and much more complex one, as its dimension
is much larger. This paper addresses critical issues on
smart grid technologies primarily in terms of information and
communication technology (ICT) issues and opportunities. The
main objective of this paper is to provide a contemporary look
at the current state of the art in smart grid communications as
well as to discuss the still-open research issues in this field. It is
expected that this paper will provide a better understanding of the
technologies, potential advantages and research challenges of the
smart grid and provoke interest among the research community
to further explore this promising research area.http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=942
Noise Sources, Effects and Countermeasures in Narrowband Power-Line Communications Networks: A Practical Approach
The integration of Distributed Generation, Electric Vehicles, and storage without compromising the quality of the power delivery requires the deployment of a communications overlay that allows monitoring and controlling low voltage networks in almost real time. Power Line Communications are gaining momentum for this purpose since they present a great trade-off between economic and technical features. However, the power lines also represent a harsh communications medium which presents different problems such as noise, which is indeed affected by Distributed Generation, Electric Vehicles, and storage. This paper provides a comprehensive overview of the types of noise that affects Narrowband Power Line Communications, including normative noises, noises coming from common electronic devices measured in actual operational power distribution networks, and noises coming from photovoltaic inverters and electric vehicle charging spots measured in a controlled environment. The paper also reviews several techniques to mitigate the effects of noise, paying special attention to passive filtering, as for being one of the most widely used solution to avoid this kind of problems in the field. In addition, the paper presents a set of tests carried out to evaluate the impact of some representative noises on Narrowband Power Line Communications network performance, as well as the effectiveness of different passive filter configurations to mitigate such an impact. In addition, the considered sources of noise can also bring value to further improve PLC communications in the new scenarios of the Smart Grid as an input to theoretical models or simulations.This work has been partly funded by the Spanish Ministry of Economy and Competitiveness through the National Program for Research Aimed at the Challenges of Society under the project OSIRIS (RTC-2014-1556-3) and through the network of excellence REDYD2050 (ENE2015-70032-REDT)
SMART GRIDS LABORATORIES INVENTORY 2016
The smart grid implies that a vast amount of information needs to be handled and requires an effective energy management. Assessing the new technological solutions that would best accommodate the needs of a smart grid is of vital importance. This report aims at collecting information about the smart grid topics of research, the technologies and the standards used by top organizations that hold smart grid activities at a laboratory level. For this purpose an online questionnaire has been used. The report presents aggregated results that give an insight into the state-of-the-art regarding the smart grid field.JRC.C.3-Energy Security, Distribution and Market