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IEEE General Meeting Power& Energy Society

作者： Le Xie Marija D. Ilic Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA USA Electrical and Computer Engineering and Engineering and Public Policy Department Carnegie Mellon University Pittsburgh PA USA Control of Future Electricity Network Operation Delft University of Technnology Delft Netherlands

This paper presents potential benefits of applying model predictive control (MPC) to solving the multi-objective economic/environmental dispatch problem in electric power systems with many intermittent resources. Based on the predictive model of the available output in the next short time period (e.g. 5 minutes) from the intermittent resources, this paper introduces a look-ahead optimal control algorithm for dispatching the available generation resources with the objective of minimizing objective function comprising both generation and environmental costs. This method is compared with (1) the static economic dispatch which treats intermittent resources as uncertain negative loads, and (2) the MPC dispatch with single objective function of minimizing the total generation cost. We show that the proposed MPC approach could lower the generation costs by directly dispatching the generator output from the renewable resources in order to compensate temporal load variations over pre-defined time horizon. Furthermore, the multi-objective economic/environmental cost function provides a formulation to study the tradeoff of efficiency and environmental impact in future energy systems. Simulation is implemented in a 12-bus power system comprising five generators to illustrate potential benefits from this look-ahead dispatch of both intermittent and more conventional power plants. The proposed method is directly applicable to managing power systems with large presence of wind and photovoltaic resources.

关键词： Power system modeling Predictive models Power system economics Power generation economics Economic forecasting Environmental economics Cost function Power system simulation Photovoltaic systems Dispatching

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Work in progress - Outreach and retention in the university of utah engineering programs

Work in progress - Outreach and retention in the university ...

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39th Annual Frontiers in Education Conference: Imagining and engineering Future CSET Education, FIE 2009

作者： Bergerson, Amy Aldous Furse, Cynthia Department of Educational Leadership and Policy University of Utah United States Department of Undergraduate Studies United States Center of Excellence for Smart Sensors Department of Electrical and Computer Engineering University of Utah United States

ISBN: (纸本)9781424447152

For several decades, college student retention research has focused on the importance of engaging college students in their higher education environment as a tool for helping them attain their degrees. Student Affairs administrators across the United States have incorporated the idea of engagement in their programs and services to increase student retention. This work in progress paper describes how the College of engineering at the University of Utah has incorporated the concept of engagement into its retention efforts in response to a shortage of engineers in the state. Engagement efforts in this National Science Foundation funded project include participation in outreach teams, facilitating a summer innovation summit, participating in learning community courses, and implementing service learning. The paper focuses on unique elements of the program, incorporating qualitative evaluation data from the first year of the project to describe how lessons learned have shaped second year efforts. © 2009 IEEE.

关键词： engineering education

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Analytical solution for the design of planar EBG structures with spurious-free frequency response

Analytical solution for the design of planar EBG structures ...

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European Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies - 39th European Microwave Conference, EuMC 2009

作者： Arnedo, I. Schwartz, J.D. Arregui, I. Laso, M.A.G. Plant, D.V. Azaña, J. Lopetegi, T. Electrical Engineering Department Public University of Navarre E-31006 Pamplona Naverre Spain Montréal QC H5A 1K6 Canada Photonics Systems Group Department of Electrical and Computer Engineering McGill University Montreal QC H3A 2A7 Canada

ISBN: (纸本)9782874870118

In this paper, an analytical solution is obtained for the design of Electromagnetic Bandgap (EBG) structures that feature a single stopband without the spurious rejected bands present in the conventional EBG devices at the harmonics of the design frequency. The design technique is applied to a two-port microstrip EBG circuit and to a four-port coupled-line EBG device in stripline technology obtaining very good results. The implementation of the EBG structure in coupled-lines allows for the redirection of the reflected signal to the coupled-port producing a device with input port matched at all frequencies. © 2009 EuMA.

关键词： Frequency response

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An empirical analysis of phishing blacklists

An empirical analysis of phishing blacklists

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6th Conference on Email and Anti-Spam, CEAS 2009

作者： Sheng, Steve Wardman, Brad Warner, Gary Cranor, Lorrie Faith Hong, Jason Zhang, Chengshan Carnegie Mellon University Engineering and Public Policy Pittsburgh PA 15213 United States University of Alabama Computer Science Birmingham AL 35294 United States Carnegie Mellon University Computer Science EPP Pittsburgh PA 15213 United States Carnegie Mellon University School of Computer Science Pittsburgh PA 15213 United States Carnegie Mellon University Heinz School of Public Policy Pittsburgh PA 15213 United States

In this paper, we study the effectiveness of phishing blacklists. We used 191 fresh phish that were less than 30 minutes old to conduct two tests on eight anti-phishing toolbars. We found that 63% of the phishing campaigns in our dataset lasted less than two hours. Blacklists were ineffective when protecting users initially, as most of them caught less than 20% of phish at hour zero. We also found that blacklists were updated at different speeds, and varied in coverage, as 47% - 83% of phish appeared on blacklists 12 hours from the initial test. We found that two tools using heuristics to complement blacklists caught significantly more phish initially than those using only blacklists. However, it took a long time for phish detected by heuristics to appear on blacklists. Finally, we tested the toolbars on a set of 13,458 legitimate URLs for false positives, and did not find any instance of mislabeling for either blacklists or heuristics. We present these findings and discuss ways in which anti-phishing tools can be improved.

关键词： computer crime

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Balancing wind power with virtual power plants of micro-CHPs

Balancing wind power with virtual power plants of micro-CHPs

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Power Tech Conference

作者： Michiel Houwing Georgios Papaefthymiou Petra W. Heijnen Marija D. Ilic Faculty of Technology Policy and Management Delft University of Technnology Delft Netherlands Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technnology Delft Netherlands Departments of Electrical and Computer Engineering and Engineering and Public Policy Carnegie Mellon University Pittsburgh PA USA Control of Future Electricity Network Operations Faculty of Technology Policy and Management Delft University of Technnology Delft Netherlands

Higher participation levels of wind power in power systems will increase the need for flexible back-up generation to balance the differences between predicted and realized wind power production. This is often an expensive solution. With distributed energy resources and more ICT at the demand side, novel, and possibly cheaper, ways for imbalance minimization arise. Micro combined heat-and-power (micro-CHP) is a novel domestic-level generation technology, producing heat and power simultaneously. Clusters of micro-CHPs can function as flexible virtual power plants (VPPs). This paper presents the design of an online coordination scheme that can substantially reduce the imbalance volumes and the associated costs for wind power traders by actively controlling a VPP comprising micro-CHP systems. It is shown that the imbalance volume and associated cost can be reduced by 73 % and 38 %, respectively.

关键词： Wind energy Power generation Costs Wind energy generation Cogeneration Power systems Energy resources Distributed power generation Technology management Electronic mail

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A system for outdoor fire detection and suppression

A system for outdoor fire detection and suppression

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9th IASTED European Conference on Power and Energy Systems, EuroPES 2009

作者： Anagnostatos, S.D. Proios, A.N. Koufakis, E.I. Polykrati, A.D. Bourkas, P.D. School of Electrical and Computer Engineering National Technical University of Athens 9 Iroon Polytechniou St. 157-80 Athens Greece Public Power Corporation A.A. Hania District-73300-Mournies Crete Greece

ISBN: (纸本)9780889868076

There are many methods concerning outdoor fire detection. In this work a simple system for early fire detection as well as suppression is proposed, implementing GSM technology and sensors consisted of heat-sensitive cable loops. The proposed system activates instantaneously fire pumps as soon as the fire incident occurs. Also a method for the calculation of the incident's location is given.

关键词： Remote control

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Genetic region characterization (Gene RECQuest) - Software to assist in identification and selection of candidate genes from genomic regions

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BMC Research Notes 2009年第1期2卷 1-8页

作者： Sadasivam, Rajani Sundar, Gayathri Vaughan, Laura Tanik, Murat Arnett, Donna Division of Health Informatics and Implementation Science Quantitative Health Sciences University of Massachusetts Medical School United States Department of Electrical and Computer Engineering School of Engineering University of Alabama at Birmingham Birmingham AL United States Department of Biostatistics School of Public Health University of Alabama at Birmingham Birmingham AL United States Department of Epidemiology School of Public Health University of Alabama at Birmingham Birmingham AL United States

Background. The availability of research platforms like the web tools of the National Center for Biotechnology Information (NCBI) has transformed the time-consuming task of identifying candidate genes from genetic studies to an interactive process where data from a variety of sources are obtained to select likely genes for follow-up. This process presents its own set of challenges, as the genetic researcher has to interact with several tools in a time-intensive, manual, and cumbersome manner. We developed a method and implemented an effective software system to address these challenges by multidisciplinary efforts of professional software developers with domain experts. The method presented in this paper, Gene RECQuest, simplifies the interaction with existing research platforms through the use of advanced integration technologies. Findings. Gene RECQuest is a web-based application that assists in the identification of candidate genes from linkage and association studies using information from Online Mendelian Inheritance in Man (OMIM) and PubMed. To illustrate the utility of Gene RECQuest we used it to identify genes physically located within a linkage region as potential candidate genes for a quantitative trait locus (QTL) for very low density lipoprotein (VLDL) response on chromosome 18. Conclusion. Gene RECQuest provides a tool which enables researchers to easily identify and organize literature supporting their own expertise and make informed decisions. It is important to note that Gene RECQuest is a data acquisition and organization software, and not a data analysis method. © 2009 Sadasivam et al.

关键词： Quantitative Trait Locus Genetic Linkage Study PubMed Article Sequential Oligogenic Linkage Analysis Routine Entrez Gene Annotation

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Designing user studies for security applications: A case study with wireless network configuration

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International Journal of Security and Networks 2009年第1-2期4卷 101-109页

作者： Kuo, Cynthia Perrig, Adrian Walker, Jesse Nokia Research Center Palo Alto CA United States Carnegie Mellon University Electrical and Computer Engineering Department Engineering and Public Policy Department Pittsburgh PA United States Intel Corporation Corporate Technology Group Hillsboro OR United States

Spontaneous interactions between end users and devices are generally secured by human actions. Evaluating whether end users are able to perform these actions correctly can be challenging. Basic, textbook-style user study methods make assumptions that may not hold for security applications. In this piece, we outline five major user study assumptions. Using 802.11 network configuration as a case study, we also show how to adapt existing user study methods for evaluating security applications. We model how security experts might approach the configuration of their own home networks. Next, we combine several methods to design a study that pinpoints where end users encounter difficulties during configuration. Finally, we discuss the findings from our user study. Copyright © 2009, Inderscience Publishers.

关键词： IEEE Standards

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The Student Platform for engineering Education Development (SPEED) - Empowering the global engineer 37

The Student Platform for Engineering Education Development (...

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SEFI 37th Annual Conference 2009

作者： Delaine, David A. DeBoer, Jennifer Ivanova, Julia Wojewoda, Nicolò Meninato, Yvonne Department of Electrical and Computer Engineering Drexel University PA United States Leadership Policy and Organizations Department Vanderbilt University Nashville United States Department of Micro and Nanotechnology Technical University of Denmark Copenhagen Denmark Department of Technology Policy and Management Delft University of Technology Delft Netherlands Department of Mathematics and Computer Science Technische Universiteit Eindhoven Eindoven Netherlands

The Student Platform for engineering Education Development (SPEED) is a global, non-profit student organization that functions as an interdisciplinary network of engineering students who aspire to stimulate change and impact the development of engineering education (EE) and its effect on society, industry, the environment and local communities. In collaboration with academia, industry and government SPEED is committed to improving EE by channeling the student voice and perspective. Through local and global initiatives SPEED empowers students and encourages the development of professional, ethical and social responsibility. Furthermore, through insight into policy, academia/industry relations and organizational structure SPEED serves to continue the professional education of its members and participants of its forums. By strategic networking and the organization of Global Student Forums SPEED provides a platform for students to engage in proactive and interactive communication to provide concrete actions towards the improvement of EE and its adaptation to the needs of society, global sustainability and modern students. SPEED strives to empower students to become factors of change in EE by providing them with the skills necessary to become global engineers and show them how thinking globally better prepares them to act locally, effectively enhancing awareness of ethical and social responsibility. Through SPEED globally-minded, policy-driven engineers with aspirations to serve society interact with peers with similar ambitions, illustrating their value and place within EE and effectively attracting them to this crucial field.

关键词： Students

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An early warning protection method against distribution transformers failure due to overloading

An early warning protection method against distribution tran...

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9th IASTED European Conference on Power and Energy Systems, EuroPES 2009

作者： Koufakis, E.I. Tsarabaris, P.T. Katsanis, J.S. Polykrati, A.D. Anagnostatos, S.D. School of Electrical and Computer Engineering National Technical University of Athens 9 Iroon Polytechniou Str. 157 80 Zografou Athens Greece Public Power Corporation S.A. Hania District-73300-Mournies Crete Greece

ISBN: (纸本)9780889868076

The task of a distribution substation is to supply the end users, continually and safely, with electric energy of high quality. To meet the above requirements many constraints and considerations must be taken into account during the planning and operation of the substation. The main and most costly component of a distribution substation is the transformer. This paper mainly refers to the transformer protection system, as well as to measurements of distribution substations already operating in the network. A method to prevent the transformer's failure due to overloading is proposed.

关键词： Transformer substations

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