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IEEE General Meeting Power& Energy Society

作者： Pedro Faria Zita Vale GECAD-Knowledge Engineering and Decision Support Research Center IPP-Polytechnic Institute of Porto Porto Portugal

The implementation of competitive electricity markets has changed the consumers' and distributed generation position power systems operation. The use of distributed generation and the participation in demand response programs, namely in smart grids, bring several advantages for consumers, aggregators, and system operators. The present paper proposes a remuneration structure for aggregated distributed generation and demand response resources. A virtual power player aggregates all the resources. The resources are aggregated in a certain number of clusters, each one corresponding to a distinct tariff group, according to the economic impact of the resulting remuneration tariff. The determined tariffs are intended to be used for several months. The aggregator can define the periodicity of the tariffs definition. The case study in this paper includes 218 consumers, and 66 distributed generation units.

关键词： Remuneration Schedules Optimization Load management Elasticity Distributed power generation Electricity

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Optimization of generation and aggregated consumption shifting for demand response programs definition

Optimization of generation and aggregated consumption shifti...

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IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)

作者： Pedro Faria Zita Vale GECAD - Knowledge Engineering and Decision Support Research Center IPP - Polytechnic Institute of Porto Porto Portugal

ISBN: (纸本)9781479977215

The concept of demand response has drawing attention to the active participation in the economic operation of power systems, namely in the context of recent electricity markets and smart grid models and implementations. In these competitive contexts, aggregators are necessary in order to make possible the participation of small size consumers and generation units. The methodology proposed in the present paper aims to address the demand shifting between periods, considering multi-period demand response events. The focus is given to the impact in the subsequent periods. A Virtual Power Player operates the network, aggregating the available resources, and minimizing the operation costs. The illustrative case study included is based on a scenario of 218 consumers including generation sources.

关键词： Optimization Mathematical model Biological system modeling Schedules Equations Electricity supply industry Remuneration

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Prototype of an Adaptive decision support System for Interactive Scheduling with MetaCognition and User Modeling Experience

Prototype of an Adaptive Decision Support System for Interac...

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World Congress on Nature & Biologically Inspired Computing (NaBIC)

作者： A. Madureira S. Gomes B. Cunha J.P. Pereira J. M. Santos I. Pereira GECAD-Knowledge Engineering and Decision Support Research Center School of Engineering from Polytechnic of Porto (ISEP/IPP) Porto Portugal

Current manufacturing scheduling has still difficulties to deal with real-world situations and, hence, human intervention is required to maintain real-time adaptation and optimization, to efficiently adapt to the inherent complex system dynamics. In this paper the prototype of an Adaptive decision support System for Interactive Scheduling with MetaCognition and User Modeling Experience (ADSyS) is proposed. A preliminary usability evaluation was streamlined to collect user's opinion about the system performance and interaction model.

关键词： Educational institutions Manufacturing Dynamic compiler Dynamic scheduling Optimization Visualization

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Manufacturing rush orders rescheduling: a supervised learning approach

Manufacturing rush orders rescheduling: a supervised learnin...

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World Congress on Nature & Biologically Inspired Computing (NaBIC)

作者： A. Madureira J. M. Santos S. Gomes B. Cunha J.P. Pereira I. Pereira GECAD-Knowledge Engineering and Decision Support Research Center School of Engineering from Polytechnic of Porto (ISEP/IPP) Porto Portugal

Contemporary manufacturing scheduling has still limitations in real-world environments where disturbances on working conditions could occur over time. Therefore, human intervention is required to maintain real-time adaptation and optimization and efficiently adapt to the inherent dynamic of markets. This paper addresses the problem of incorporating rush orders into the current schedule of a manufacturing shop floor organization. A set of experiments were performed in order to evaluate the applicability of supervised classification algorithms in the attempt to predict the best integration mechanism when receiving a new order in a dynamic scheduling problem.

关键词： Classification algorithms Accuracy Machine learning algorithms Job shop scheduling Communities Vegetation decision trees

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Traveled Distance Estimation Algorithm for Indoor Localization

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Procedia Technology 2014年 17卷 248-255页

作者： Rui Terra Lino Figueiredo Ramiro Barbosa Ricardo Anacleto GECAD Knowledge Engineering and Decision Support Research Center Rua Dr. António Bernardino de Almeida 431 4200-072 Porto Portugal

This paper presents an ankle mounted Inertial Navigation System (INS) used to estimate the distance traveled by a pedestrian. This distance is estimated by the number of steps given by the user. The proposed method is based on force sensors to enhance the results obtained from an INS. Experimental results have shown that, depending on the step frequency, the traveled distance error varies between 2.7% and 5.6%.

关键词： Inertial Navigation System Pedestrian Dead Reckoning Step Frequency Step Length Estimation.

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Fractional dynamics of a model for HIV and TB coinfection

Fractional dynamics of a model for HIV and TB coinfection

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International Conference on Fractional Differentiation and Its Applications (ICFDA)

作者： Carla M. A. Pinto Ana R. M. Carvalho School of Engineering Polytechnic of Porto Knowledge Engineering and Decision Support Research Center Porto PORTUGAL Faculty of Sciences University of Porto Porto Portugal

In this paper we study a fractional order model for HIV and TB coinfection. We consider vertical transmission for HIV and treatment for both diseases. We analyze numerical results of the proposed model for different values of the order of the fractional derivative. The results are in agreement with the integer order model and reveal that we can extend the dynamical evolution up to new types of transients.

关键词： Human immunodeficiency virus Mathematical model Numerical models Sociology Statistics

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Using personas for supporting user modeling on scheduling systems

Using personas for supporting user modeling on scheduling sy...

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International Conference on Hybrid Intelligent Systems (HIS)

作者： A. Madureira B. Cunha J.P. Pereira S. Gomes I. Pereira J.M. Santos A. Abraham GECAD - Knowledge Engineering and Decision Support Research Center Institute of Engineering Polytechnic of Porto (ISEP /IPP) Machine Intelligence Research Labs (MIR Labs) WA USA

User modeling and user adaptive interaction has become a central research issue to understand users as they interact with technology. The importance of the development of well adapted interfaces to several kinds of users and the differences that characterize them is the basis of the successful interaction. User Personas is a technique that allows the discovery and definition of the archetype users of a system. With that knowledge, the system should shape itself, inferring the user expertise to provide its users with the best possible experience. In this paper, an architecture that combines User Personas and a dynamic, evolving system is proposed, along with an evaluation by its target users. The proposed system is able to infer the user and its matching Persona, and keeps shaping itself in parallel with the user's discovery of the system.

关键词： Usability User centered design Adaptation models Computational modeling Adaptive systems Human computer interaction Standards

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A new heuristic providing an effective initial solution for a simulated annealing approach to energy resource scheduling in smart grids

A new heuristic providing an effective initial solution for ...

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2014 IEEE Symposium Series on Computational Intelligence, IEEE SSCI 2014 - 2014 IEEE Symposium on Computational Intelligence Applications in Smart Grid, CIASG 2014

作者： Sousa, T. Morais, H. Castro, R. Vale, Z. GECAD - Knowledge Engineering and Decision Support Research Center IPP - Polytechnic Institute of Porto Porto Portugal Elektrovej build. 326 Kgs. LyngbyDK 2800 Denmark INESC-ID IST Instituto Superior Técnico University of Lisbon Lisbon Portugal

ISBN: (纸本)9781479945474

An intensive use of dispersed energy resources is expected for future power systems, including distributed generation, especially based on renewable sources, and electric vehicles. The system operation methods and tool must be adapted to the increased complexity, especially the optimal resource scheduling problem. Therefore, the use of metaheuristics is required to obtain good solutions in a reasonable amount of time. This paper proposes two new heuristics, called naive electric vehicles charge and discharge allocation and generation tournament based on cost, developed to obtain an initial solution to be used in the energy resource scheduling methodology based on simulated annealing previously developed by the authors. The case study considers two scenarios with 1000 and 2000 electric vehicles connected in a distribution network. The proposed heuristics are compared with a deterministic approach and presenting a very small error concerning the objective function with a low execution time for the scenario with 2000 vehicles. © 2014 IEEE.

关键词： Simulated annealing

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A Communication and Resources Management Scheme to support the Smart Grid Integration of Multiplayers Access to Resources Information

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IFAC Proceedings Volumes 2014年第3期47卷 11244-11249页

作者： Zita Vale Hugo Morais Pedro Faria Carlos Ramos GECAD – Knowledge Engineering and Decision Support Research Center IPP - Polytechnic Institute of Porto Porto Portugal Automation and Control Group Technical University of Denmark (DTU) Kongens Lyngby Denmark

The increasing and intensive integration of distributed energy resources into distribution systems requires adequate methodologies to ensure a secure operation according to the smart grid paradigm. In this context, SCADA (Supervisory Control and Data Acquisition) systems are an essential infrastructure. This paper presents a conceptual design of a communication and resources management scheme based on an intelligent SCADA with a decentralized, flexible, and intelligent approach, adaptive to the context (context awareness). The methodology is used to support the energy resource management considering all the involved costs, power flows, and electricity prices leading to the network reconfiguration. The methodology also addresses the definition of the information access permissions of each player to each resource. The paper includes a 33-bus network used in a case study that considers an intensive use of distributed energy resources in five distinct implemented operation contexts.

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Real-time Energy Resource Scheduling Considering a Real Portuguese Scenario

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IFAC Proceedings Volumes 2014年第3期47卷 2267-2272页

作者： Marco Silva Tiago Sousa Hugo Morais Zita Vale GECAD – Knowledge Engineering and Decision Support Research Center IPP - Polytechnic Institute of Porto Porto Portugal Automation and Control Group Technical University of Denmark (DTU) Kongens Lyngby Denmark

The development in power systems and the introduction of decentralized generation and Electric Vehicles (EVs), both connected to distribution networks, represents a major challenge in the planning and operation issues. This new paradigm requires a new energy resources management approach which considers not only the generation, but also the management of loads through demand response programs, energy storage units, EVs and other players in a liberalized electricity markets environment. This paper proposes a methodology to be used by Virtual Power Players (VPPs), concerning the energy resource scheduling in smart grids, considering day-ahead, hour-ahead and real-time scheduling. The case study considers a 33-bus distribution network with high penetration of distributed energy resources. The wind generation profile is based on a real Portuguese wind farm. Four scenarios are presented taking into account 0, 1, 2 and 5 periods (hours or minutes) ahead of the scheduling period in the hour-ahead and realtime scheduling.

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