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Complexity in Engineering, 2010. COMPENG '10.

Date 22-24 Feb. 2010

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Displaying Results 1 - 25 of 52
  • [Front cover]

    Publication Year: 2010, Page(s): C1
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  • [Title page i]

    Publication Year: 2010, Page(s): i
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  • [Title page iii]

    Publication Year: 2010, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2010, Page(s): iv
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  • Table of contents

    Publication Year: 2010, Page(s):v - viii
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  • Message from General Chair

    Publication Year: 2010, Page(s): ix
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  • Organizing Committee

    Publication Year: 2010, Page(s): x
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  • Program Committee

    Publication Year: 2010, Page(s): xi
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  • list-reviewer

    Publication Year: 2010, Page(s): xii
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  • Propagation of Load Shed in Cascading Line Outages Simulated by OPA

    Publication Year: 2010, Page(s):1 - 6
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (162 KB) | HTML iconHTML

    We estimate with a branching process model the propagation of load shed and the probability distribution of load shed in simulated blackouts of an electric power system. The average propagation of the simulated load shed data is estimated and then the initial load shed is discretized and propagated with a Galton-Watson branching process model of cascading failure to estimate the probability distri... View full abstract»

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  • Power Grids of the Future: Why Smart Means Complex

    Publication Year: 2010, Page(s):7 - 11
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (201 KB) | HTML iconHTML

    The paper presents an analysis of the possible evolution of the power grids in the near future. In particular, we expect Distribution Networks to significantly evolve. Currently, Distribution Networks are rather simple systems with very limited active control. The growing presence of Distributed Generation and in particular the introduction of renewable sources is expected to significantly change ... View full abstract»

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  • Mechanism Design for Cognitive Radio Networks

    Publication Year: 2010, Page(s):12 - 17
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (257 KB) | HTML iconHTML

    Cognitive radio is a brand-new wireless technology that is enabling radically new forms of access and sharing of radio spectrum. Most research so far has focused on the operation of a single cognitive device but the provision of commercial services will involve networks of cognitive radios competing for dynamically changing spectrum resources. One central problem here is how to design new spectrum... View full abstract»

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  • Intelligent Health Monitoring of Critical Infrastructure Systems

    Publication Year: 2010, Page(s):18 - 20
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB) | HTML iconHTML

    Modern societies have reached a point where everyday life relies heavily on the reliable operation and intelligent management of critical infrastructures, such as electric power systems, telecommunication networks, water distribution networks, and transportation systems. Monitoring and controlling such systems is becoming increasingly more challenging as their size, complexity and interactions are... View full abstract»

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  • Power Grids as Complex Networks: Topology and Fragility

    Publication Year: 2010, Page(s):21 - 26
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (205 KB) | HTML iconHTML

    We almost certainly agree that the harnessing of electricity can be considered the most important technological advance of the twentieth century. The development that allows this control is the power grid, an intricate system composed of generators, substations and transformers connected by cable lines hundreds of kilometers long. Its presence is nowadays so intertwined with ours, and so much take... View full abstract»

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  • Interdependency Effects Measured on Complex Interdependent Networks

    Publication Year: 2010, Page(s):27 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1364 KB) | HTML iconHTML

    Technological and energetic networks display functional interdependency effects which should be evaluated and accounted for when control and healing strategies have to be envisaged. Topological and functional emulations (based on available data) of interconnected networks might help in shedding some light on the complex entanglement binding different technological networks. The case of electrical ... View full abstract»

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  • Dynamic and Steady State Security Constraints in the Transfer Capability Assessment

    Publication Year: 2010, Page(s):33 - 39
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (323 KB) | HTML iconHTML

    This paper presents a fast and accurate method to determine the available transfer capability. The Ralston's method is used to predict the two trajectory points of voltage magnitude, power flow and maximum generator rotor angle difference. Then, the cubic-spline interpolation technique is used to accurately trace the P-V, P-S or P- ¿ ¿ curves between two points of trajectory. The P-V, P-S and P-... View full abstract»

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  • An Integrated Platform for Power System Security Assessment Implementing Probabilistic and Deterministic Methodologies

    Publication Year: 2010, Page(s):40 - 42
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (237 KB) | HTML iconHTML

    Power system security assessment both for planning (off-line) studies and for operational (on-line) applications is performed by various analysis methods which highlight different phenomena (steady-state violations, angle stability, voltage stability, etc.) in order to retrieve an exhaustive vision of the problems. Besides traditional deterministic tools, recently proposed probabilistic tools may ... View full abstract»

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  • Modeling of DFIG Wind Turbine and Lithium Ion Energy Storage System

    Publication Year: 2010, Page(s):43 - 45
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (318 KB) | HTML iconHTML

    The paper is aimed at describing the dynamic models of DFIG equipped wind turbine and Lithium Ion Energy System. The purpose of the energy storage system is to be coupled to the wind generation system in order to smooth its power output. Depending on the size of the storage system different task can be performed, starting from short term fluctuation leveling and power quality, getting to primary f... View full abstract»

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  • Towards an Uncertainty-Based Model Level Selection for the Simulation of Complex Power Systems

    Publication Year: 2010, Page(s):46 - 48
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (279 KB) | HTML iconHTML

    The paper reviews the current situation in the development of tools supporting the design of modern power systems. Many simulation scenarios require analyzing the same topology with different level of details. As result, it is becoming more and more important to define automatic procedures able to select the appropriate detail for a model given a simulation task. The authors introduce here the ide... View full abstract»

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  • Discerning Electricity Consumption Patterns from Urban Allometric Scaling

    Publication Year: 2010, Page(s):49 - 51
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (225 KB) | HTML iconHTML

    Allometric scaling relations are characteristic of all living organisms. Metabolic and heart rates, lifespan and many other physiological properties vary with body mass in systematic and interrelated ways, which usually take the form of a power law. Scaling laws have been recently observed also in the metabolic rate of a particular kind of living system: the city. Scaling exponents of urban indica... View full abstract»

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  • The Concept of Betweenness in the Analysis of Power Grid Vulnerability

    Publication Year: 2010, Page(s):52 - 54
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (230 KB) | HTML iconHTML

    Vulnerability analysis in power systems is a key issue in modern society and many efforts have contributed to the analysis. Recently, complex network metrics applied to assess the topological vulnerability of networked systems have been used in power systems, such as betweenness metric, since transmission of power systems is in basis of a network structure. However, a pure topological approach fai... View full abstract»

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  • Dispatch of Distributed Generators Using Replicator Dynamics

    Publication Year: 2010, Page(s):55 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (127 KB) | HTML iconHTML

    Power distribution networks that include distributed generation (DG) need new control strategies based on distributed and hierarchical structures. For these systems, a replicator dynamics strategy for dynamic resource allocation in the dispatch of DGs in a microgrid is presented. This approach uses the characteristics of the system in order to offer a simple algorithm with optimal solutions. To co... View full abstract»

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  • A System Level Model of Possible Integration of Building Management System in SmartGrid

    Publication Year: 2010, Page(s):58 - 60
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (179 KB) | HTML iconHTML

    Building management systems (BMS) could be seen as a kind of module inside wider SmartGrid system. The incorporation of BMS must consider both technical as well as commercial issues. Hence, the efficient integration will require standards' harmonization and closer interaction among key elements of these systems. Moreover, another important issue will be adopting of new market models to BMS. In ord... View full abstract»

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  • Initial Radius Selection of Sphere Decoder for Practical Applications of MIMO Channels

    Publication Year: 2010, Page(s):61 - 63
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (357 KB) | HTML iconHTML

    Sphere Detection (SD) method has been used as a powerful mean to find Maximum Likelihood (ML)solution to the detection problem of Multiple-Input Multiple-Output (MIMO) channels with lower complexity. This method searches closest lattice point inside a sphere. This paper discusses the effect of initial radius of the sphere on the complexity and performance of SD in different noise variances, conste... View full abstract»

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  • A Dynamic OFDMA Oriented Resource Control for WiMAX Networks

    Publication Year: 2010, Page(s):64 - 66
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (918 KB) | HTML iconHTML

    This paper deals with the problem of Resource Control in a WiMAX scenario. The aim of Resource Control into manage and allocate available bandwidth among users in away to obtain high resource exploitation. The proposed approach regards the uplink communication direction between a Base Station (BS) that assigns available resources through a scheduling procedure OFDMA oriented with Quality of Servic... View full abstract»

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