Smart grid architecture for rural distribution networks: application to a Spanish pilot network

This paper presents a novel architecture for rural distribution grids. This architecture is designed to modernize traditional rural networks into new Smart Grid ones. The architecture tackles innovation actions on both the power plane and the management plane of the system. In the power plane, the architecture focuses on exploiting the synergies between telecommunications and innovative technologies based on power electronics managing low scale electrical storage. In the management plane, a decentralized management system is proposed based on the addition of two new agents assisting the typical Supervisory Control And Data Acquisition (SCADA) system of distribution system operators. Altogether, the proposed architecture enables operators to use more effectively—in an automated and decentralized way—weak rural distribution systems, increasing the capability to integrate new distributed energy resources. This architecture is being implemented in a real Pilot Network located in Spain, in the frame of the European Smart Rural Grid project. The paper also includes a study case showing one of the potentialities of one of the principal technologies developed in the project and underpinning the realization of the new architecture: the so-called Intelligent Distribution Power Router.Postprint (published version

Effectively Modeling Data from Large-area Community Sensor Networks

Effectively managing the data generated by Large-area Community driven Sensor Networks (LCSNs) is a new and challenging prob- lem. One important step for managing and querying such sensor network data is to create abstractions of the data in the form of models. These models can then be stored, retrieved, and queried, as required. In our OpenSense1 project, we advocate an adap- tive model-cover driven strategy towards effectively managing such data. Our strategy is designed considering the fundamental princi- ples of LCSNs. We describe an adaptive approach, called adaptive k-means, and report preliminary results on how it compares with the traditional grid-based approach towards modeling LCSN data. We find that our approach performs better to model the sensed phenomenon in spatial and temporal dimensions. Our results are based on two real datasets

Design of a framework for the aggregator using demand reduction bid (DRB)

Demand side management (DSM) in smart grid paradigm is an energy management strategy of the grid using advanced data communication and networking. The aggregator, a third party entity, is appearing as a key player in managing the demand during the peak hours between the utility and the consumer. In this work, a general framework is discussed and focuses on the interactional issues between the utility, the aggregator and the consumers. The paper also discusses the role of communication in the context of interaction among the three players. In addition, it also presents the model of the framework which can enable the consumer to effectively participate in the DSM. The proposed model considers the direct load control (DLC) program which uses the concept of demand reduction bid (DRB) in aggregated demand response

Design of a Framework for the Aggregator using Demand Reduction Bid (DRB)

Demand side management (DSM) in smart grid paradigm is an energy management strategy of the grid using advanced data communication and networking. The aggregator, a third party entity, is appearing as a key player in managing the demand during the peak hours between the utility and the consumer. In this work, a general framework is discussed and focuses on the interactional issues between the utility, the aggregator and the consumers. The paper also discusses the role of communication in the context of interaction among the three players. In addition, it also presents the model of the framework which can enable the consumer to effectively participate in the DSM. The proposed model considers the direct load control (DLC) program which uses the concept of demand reduction bid (DRB) in aggregated demand response. Keywords: Aggregator, Demand reduction bid (DRB), Direct load control (DLC), Framewor

The Diversity of Design of TSOs

International audienceIt is puzzling today to explain diversity and imperfection of actual transmission monopoly designs in competitive electricity markets. We argue that transmission monopoly in competitive electricity markets has to be analysed within a Wilson (2002) modular framework. Applied to the management of electricity flows, at least three modules make the core of transmission design: 1° the short run management of network externalities; 2° the long run management of network investment; and 3° the coordination of neighboring Transmission System Operators for cross border trade. In order to tackle this diversity of designs of TSOs, we show that for each of these modules, three different basic ways of managing them are possible. Among the identified twenty seven options of organisation, we define an Ideal TSO. Second, we demonstrate that 1°monopoly design differs from this Ideal TSO and cannot handle these three modules irrespective of the “institutional” definition and allocation of property rights on transmission; while 2°definition and allocation of property rights on transmission cannot ignore the existing electrical industry and transmission network structure: they have to complement each other to be efficient. Some conclusions for regulatory issues of transmission systems operators are derived from this analysis of network monopoly organisation

Condor services for the Global Grid:interoperability between Condor and OGSA

In order for existing grid middleware to remain viable it is important to investigate their potentialfor integration with emerging grid standards and architectural schemes. The Open Grid ServicesArchitecture (OGSA), developed by the Globus Alliance and based on standard XML-based webservices technology, was the first attempt to identify the architectural components required tomigrate towards standardized global grid service delivery. This paper presents an investigation intothe integration of Condor, a widely adopted and sophisticated high-throughput computing softwarepackage, and OGSA; with the aim of bringing Condor in line with advances in Grid computing andprovide the Grid community with a mature suite of high-throughput computing job and resourcemanagement services. This report identifies mappings between elements of the OGSA and Condorinfrastructures, potential areas of conflict, and defines a set of complementary architectural optionsby which individual Condor services can be exposed as OGSA Grid services, in order to achieve aseamless integration of Condor resources in a standardized grid environment

Development of Asset Health Indices based on Dynamic Condition Parameters in Smart Grids: An Application to High Voltage Gas Insulated Switchgears

Defining asset condition is a key aspect in effectively managing smart grid assets. With the development of recent advanced technologies on monitoring and diagnostics systems for electrical assets, several data can be collected from grids simultaneously regarding condition of individual assets. However, making decisions out of the collected condition data requires a certain methodology combined with system overview and product knowledge which can then be applied to all assets types and classes. This paper introduces a methodology in order to construct health indices for electrical assets based on dynamic condition parameters, being applied to high voltage gas insulated switchgears. Akıllı Şebeke Varlıklarının verimli yönetimi için bu varlıkların durumlarını belirlemek kilit rol üstlenir. Son zamanlarda, elektriksel verlıkların izleme ve tanı sistemlerindeki ileri teknoloji gelişmeleri ile her bir varlıkin anlık durumu hakkında bir çok veri toplanabilmektedir. Fakat, bu toplanan durum verilerinden yararlanarak karar verilmesi gerektiğinde, tüm varlık sınıf ve tiplerine uygulanabilen, sistem ve ürün bilgisi ile harmanlıanmış güvenilir bir metodolojiye ihtiyaç duyulur. Bu makale, yüksek gerilim gaz izole sistemler için uygulanan, dinamik durum parametrelerine dayanıp elektriksel varlık için sağlık göstergerleri oluşturmaya yarayan bir metodolojyi sunmaktadır