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SICE Annual Conference

作者： José Antonio Tarifa Juan Manuel Escaño Miguel Ángel Molina Carlos Bordons Department of System Engineering and Automatic Control University of Seville Seville Spain

This paper describes an application in home automation based on wireless sensor network for monitoring of an electrical network in the consumption and quality of supply energy. The system allows scalability and flexibility with low cost. When installing sensors in each plug, it is possible to draw a map of the building to see areas where there is greater demand for electricity as well as places where there is too much distortion. Gateway is configured for the IEEE 802.15.4 to IEEE 802.3 and MATLAB was used to monitor data. The calculations of power and harmonic distortion are performed on each sensor.

关键词： Logic gates Protocols Harmonic analysis Discrete Fourier transforms Monitoring MATLAB

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Optimal allocation of distributed generators in a distribution network using adaptive multi-objective particle swarm optimization

Optimal allocation of distributed generators in a distributi...

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2011 International Conference on Electrical, Information engineering and Mechatronics, EIEM 2011

作者： Cheng, Shan Chen, Min-You Fleming, Peter J. Li, Xia State Key Laboratory of Power Transmission Equipment and System Security and New Technology School of Electrical Engineering Chongqing University Chongqing China Department of Automatic Control and Systems Engineering University of Sheffield Sheffield United Kingdom

ISBN: (纸本)9781447124665

This study presents the optimal allocation of distributed generators (DGs) in distribution network based on an adaptive multi-objective particle swarm optimization (AMPSO). In order to enable the DGs to make the best contribution to the distribution network, a multi-objective optimization model addressing power loss and a voltage stability index (VSI) is constructed, in which the capacity factor of DGs is taken into consideration. In the AMPSO, some adaptive techniques including the use of dynamically changing inertia weight, time-varying acceleration coefficients, mutation operation and circular crowding sorting have been integrated to improve the convergence and the diversity performance of the algorithm. The proposed algorithm has been used to determine the optimal allocation of DGs in a IEEE 33-bus distribution network. Simulation results show that the proposed method can identify the optimal solutions with a good tradeoff between the power loss and the VSI. © 2012 Springer-Verlag London Limited.

关键词： Multiobjective optimization

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Some aspects of the modular walking robot MERO's new architecture

Some aspects of the modular walking robot MERO's new archite...

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14th IFAC Symposium on Information control Problems in Manufacturing, INCOM'12

作者： Ion, Ion Ion, Simionescu Adrian, Curaj Vasile, Aurelian Cornel, Dinu Manufacturing Technology Department POLITEHNICA University of Bucharest Romania Mechanism and Robot Theory Department POLITEHNICA University of Bucharest Romania Automatic Control and System Engineering Department POLITEHNICA University of Bucharest Romania

ISBN: (纸本)9783902661982

The new modular walking robots MERO by reconfiguring their architecture are built to displace the heavy loads on the unaligned terrain. The main characteristic of the modular walking robots is that they are able to move away on unarranged, horizontal and rough terrain The modular walking system protects much better the environment when its contact with the soil is discrete, a fact that limits appreciately the area that is crushed. The new modular walking robots may have a lower or higher autonomy degree. This autonomy has in view the power source's supply capability but also orientation and perception capabilities as regards the terrain configuration the robot is running upon and its decision making and the motion manner towards a target. Architecture of the reference structure of the walking robot has three two-legged modules. Every leg has three degrees of freedom (RRP), a slip sensor and tactile sensor to measure the contact which consists of lower and upper levels. The body of the MERO (MEchanism RObot) walking robot carries a gyroscopic bearing sensor to measure the pitch and roll angles of the platform. The legs are powered by hydraulic drives and are equipped with transducers and sensors. They are used to control the walking robot in the adaptability to a natural ground. In this paper presents some aspects of the new modular walking robot. © 2012 IFAC.

关键词： Decision making

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A case study of a flexible software tool in the drilling process

A case study of a flexible software tool in the drilling pro...

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1st IFAC Conference on Embedded systems, Computational Intelligence and Telematics in control, CESCIT 2012

作者： Portillo, E. Cabanes, I. Sánchez, J.A. Orive, D. Ortega, N. Marcos, M. Department of Automatic Control and System Engineering University of the Basque Country Alameda Urquijo s/n 48013 Bilbao Spain Department of Mechanical Engineering University of the Basque Country Alameda Urquijo s/n 48013 Bilbao Spain

ISBN: (纸本)9783902661975

The drilling process is one of the most extended machining processes in the manufacturing industry. However, the performance of this process can be importantly decreased due to the drill wear and even breakage. Concerning this, this paper presents a flexible software tool that provides the user of the drilling machine with information about the current regime of the drilling process. In particular, the application provides information related to the occurrence of both tool wear and material heterogeneities. © 2012 IFAC.

关键词： Application programs

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An overview of agent-based evacuation models for building fires

An overview of agent-based evacuation models for building fi...

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2012 9th IEEE International Conference on Networking, Sensing and control, ICNSC 2012

作者： Hu, Yuling Liu, Xiwei Wang, Feiyue Cheng, Changjian Beijing Key Laboratory of Automatic Control System School of Automation Beijing Institute of Technology China School of Electric and Information Engineering Beijing University of Civil Engineering and Architecture China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences China

ISBN: (纸本)9781467303880

Agent-based evacuation modeling approach is gained more and more attention for investigating human cognitive capabilities and social behaviors in building fires. This paper mainly overviews the research about various agent-based evacuation models. For the decision-making reflects the intelligence of agent individual, we define three types of behavior decision-making models for agent individual based on the collected literatures and sum up the characteristics of each type. Aiming at crowd' important influence on evacuation processes, we also sum up two types of agent-based crowd modeling approaches to simulate crowd evacuation processes and give corresponding cases. Finally, after summing up the existing problems, the outlooks of the research from computaional experiments point of view is proposed. © 2012 IEEE.

关键词： Decision making

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Supervised multi-agent control of leather manufacturing processes by using the fuzzy logic

Leather and Footwear Journal

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Leather and Footwear Journal 2012年第2期12卷 101-112页

作者： Hanchevici, Arian-Bogdan Guta, Sergiu-Adrian Faculty of Automatic Control and Computers Department of Automatic Control and System Engineering Politehnica University of Bucharest Romania INCDTP Division: Leather and Footwear Research Institute 93 Ion Minulescu Bucharest Romania

In this paper we propose a supervised multi-agent control strategy for leather manufacturing processes. In a tannery numerous processes are performed and in order to control them we use an agent for each process. Due to the control from distance, the systems are affected by varying communication delays which can affect the quality of the final product. The supervisor is used to adjust, by using the fuzzy logic, the command provided by each agent. Simulation results are presented. The results show performance improvement when our control strategy is used.

关键词： Fuzzy logic

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control of Solar Energy systems 1

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IFAC Proceedings Volumes 2012年第15期45卷 848-855页

作者： Eduardo F. Camacho Manuel Berenguel Department of System Engineering and Automatic Control of the Escuela Superior de Ingenieros of the University of Sevilla Spain Department of Languages and Computation of the University of Almeria Spain

This work deals with the main control problems found in solar power systems and the solutions proposed in literature. The paper first describes the main solar power technologies, its development status and then describes the main challenges encountered when controlling solar power systems. While in other power generating processes, the main source of energy can be manipulated, in solar energy systems, the main source of power which is solar radiation cannot be manipulated and furthermore it changes in a seasonal and on a daily base acting as a disturbance when considering it from a control point of view. Solar plants have all the characteristics needed for using industrial electronics and advanced control strategies able to cope with changing dynamics, nonlinearities and uncertainties.

关键词： control of solar energy systems model predictive control control of thermo solar plants control of parabolic troughs

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Lithium-ion battery remaining useful life estimation based on nonlinear AR model combined with degradation feature

Lithium-ion battery remaining useful life estimation based o...

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2012 Annual Conference of the Prognostics and Health Management Society, PHM 2012

作者： Liu, Datong Luo, Yue Peng, Yu Peng, Xiyuan Pecht, Michael Department of Automatic Test and Control Harbin Institute of Technology Harbin Beijing150080 China System Design Institute of Electro-Mechanic Engineering Beijing100854 China CALCE University of Maryland College ParkMD20742 United States

ISBN: (纸本)9781936263059

Long term prediction such as multi-step time series prediction is a challenging prognostics problem. This paper proposes an improved AR time series model called ND-AR model (Nonlinear Degradation AutoRegression) for Remaining Useful Life (RUL) estimation of lithium-ion batteries. The nonlinear degradation feature of the lithiumion battery capacity degradation is analyzed and then the non-linear accelerated degradation factor is extracted to improve the linear AR model. In this model, the nonlinear degradation factor can be obtained with curve fitting, and then the ND-AR model can be applied as an adaptive datadriven prognostics method to monitor degradation time series data. Experimental results with CALCE battery data set show that the proposed nonlinear degradation AR model can realize satisfied prognostics for various lithium-ion batteries with low computing complexity.

关键词： Lithium-ion batteries

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Robust vector control strategy for variable speed wind turbines

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International Journal of Power Electronics 2012年第4期4卷 321-339页

作者： Barambones, Oscar Automatic Control and System Engineering Department University of the Basque Country EUI de Vitoria Nieves cano 12 1006 Vitoria Spain

The efficiency of the wind power conversions systems can be greatly improved using an appropriate control algorithm. In this work, a robust control for variable speed wind power generation that incorporates a doubly feed induction generator is described. The electrical systems incorporate a wound rotor induction machine with back-to-back three phase power converter bridges between its rotor and the grid. In the presented design, it is applied the so called vector control theory. The proposed control scheme uses stator flux-oriented vector control for the rotor-side converter bridge control and grid voltage vector control for the grid-side converter bridge control. The proposed robust control law is based on a sliding mode control theory that, as it is well-known, presents a good performance under system uncertainties. The stability analysis of the proposed controller under disturbances and parameter uncertainties is provided using the Lyapunov stability theory. Finally, simulated results show, on the one hand, that the proposed controller provides high-performance dynamic characteristics, and on the other hand, that this scheme is robust with respect to the uncertainties that usually appear in the real systems. Copyright © 2012 Inderscience Enterprises Ltd.

关键词： Wind power

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A case study of a flexible software tool in the drilling process

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IFAC Proceedings Volumes 2012年第4期45卷 333-338页

作者： E. Portillo I. Cabanes J.A. Sánchez D. Orive N. Ortega M. Marcos Department of Automatic Control and System Engineering University of the Basque Country Alameda Urquijo s/n 48013 Bilbao Spain (Tel: +34 94 6013952) Department of Automatic Control and System Engineering University of the Basque Country Alameda Urquijo s/n 48013 Bilbao Spain (Tel: +34 94 6013951) Department of Mechanical Engineering University of the Basque Country Alameda Urquijo s/n 48013 Bilbao Spain (Tel: +34 94 6014089) Department of Automatic Control and System Engineering University of the Basque Country Alameda Urquijo s/n 48013 Bilbao Spain (Tel: +34 94 6014212) Department of Mechanical Engineering University of the Basque Country Alameda Urquijo s/n 48013Bilbao Spain (Tel: +34 94 6013929) Department of Automatic Control and System Engineering University of the Basque Country Alameda Urquijo s/n 48013 Bilbao Spain (Tel: +34 94 6014049)

关键词： Flexible software tool Industrial application drilling tool wear Labview™

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