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2014 International Conference on Energy Research and Power engineering, ERPE 2014

作者： Wei, Wei Ding, Li Jie Liu, Yan Jiao State Grid Electric Power Research Institute Sichuan Electric Power Company Chengdu 610000 China Control and Computer Engineering School North China Electric Power University Beijing 102206 China

ISBN: (纸本)9783038351603

With increasingly complex of the power grid structure and increasingly user requirements of power quality, Power grid voltage reactive power optimization is still the difficult points in power system operation control. This paper introduces the general optimization methods of multi-objective reactive power optimization, intelligent algorithm, the development of the hybrid method, and their respective advantages, disadvantages and improvement;It also analyzes and summarizes the simplification of search space for reactive power optimization and the key issues and research development trend of the real-time reactive voltage control system. © (2014) Trans Tech Publications, Switzerland.

关键词： Electric power transmission networks

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Simulation Analysis of control System in an Innovative Magnetically-Saturated controllable Reactor

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Journal of Power and Energy engineering 2014年第4期2卷 403-410页

作者： Xiao Jin Guoqiang Zhang Runrui Guo Institute of Electrical Engineering Chinese Academy of Sciences Beijing China School of Computer and Control Engineering University of Chinese Academy of Sciences Beijing China

controllable saturation reactors are widely used in reactive power compensation. The control system of controllable saturation reactor determines adaption speed, accuracy, and stability. First, an innovative type of controllable saturation reactor is introduced. After that the control system is designed, and a self-tuning algorithm in PID controller is proposed in the paper. The algorithm tunes PID parameters automatically with different error signals caused by varied loads in power system. Then the feasibility of the above algorithm is verified by Simulink module of Matlab software. The results of simulation indicate that the control system can efficiently reduce adaption time and overshoot.

关键词： controllable Saturation Reactor Parameter Self-Tuning PID controller Reactive Power Compensation

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Energy-aware VM scheduling in IaaS clouds using pliant logic

Energy-aware VM scheduling in IaaS clouds using pliant logic

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4th International Conference on Cloud Computing and Services Science, CLOSER 2014

作者： Benyi, Attila Dombi, Jozsef Daniel Kertesz, Attila Software Engineering Department University of Szeged 6720 Szeged Dugonics ter 13 Hungary MTA SZTAKI Institute for Computer Science and Control H-1111 Budapest Kende u. 13-17 Hungary

ISBN: (纸本)9789897580192

Cloud Computing is facing an increasing attention nowadays as it is present in many consumer appliances by advertising the illusion of infinite resources towards its customers. Nevertheless it raises severe issues with energy consumption: The higher levels of quality and availability require irrational energy expenditures. This paper proposes a Pliant system based virtual machine scheduling approach for reducing energy consumption of IaaS datacenters. In order to evaluate our proposed solution, we have designed a CloudSim-based simulation environment, and applied real-world traces for the experiments. We show that significant savings can be achieved in energy consumption with our proposed Pliant-based algorithms, and by fine-tuning the parameters of the proposed Pliant strategy, a beneficial trade-off can be set between energy consumption and execution time. Copyright © 2014 SCITEPRESS - Science and Technology Publications.

关键词： Energy utilization

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An adaptive routing selection measure for mobile data-gathering mechanisms in wireless sensor networks

An adaptive routing selection measure for mobile data-gather...

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International Conference on Vehicle and Mechanical engineering and Information Technology, VMEIT 2014

作者： Bai, Xu Wang, Chang Hong Zhang, Jia Yan Space Control and Inertial Technology Research Center Harbin Institute of Technology Harbin 150080 China School of Electronics and Information Engineering Harbin Institute of Technology Harbin 150001 China Electrical and Computer Engineering The University of British Columbia Vancouver V6T1Z4 Canada

ISBN: (纸本)9783038350606

Wireless Sensor Networks(WSNs) allows users to accurately monitor a environment by intelligently combining the data from the distributed nodes. A cluster-based network topology can increase the scalability and lifetime, the cluster head gathering the data and transmitting them to Sink with single hop or multi-hop communication. In this paper, the energy consumption model for clustering networks were analyzed and an adaptive energy-efficient routing approach was given, then the hop mode selection condition was analyzed and simulated. © (2014) Trans Tech Publications, Switzerland.

关键词： Sensor nodes

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Cooperative control in production and logistics 19

Cooperative control in production and logistics

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19th IFAC World Congress on International Federation of Automatic control, IFAC 2014

作者： Monostori, László Valckenaers, Paul Dolgui, Alexandre Panetto, Hervé Brdys, Mietek Csáji, Balázs Csanád Institute for Computer Science and Control Hungarian Academy of Sciences Hungary Faculty of Mechanical Engineering Budapest University of Technology and Economics Hungary Department of Health Care and Technology KU Leuven Belgium LIMOS UMR 6158 CNRS Ecole Nationale Supérieure des Mines Saint-Etienne France Université de Lorraine CNRS France School of Electronic Electrical and Computer Engineering University of Birmingham United Kingdom Department of Control Systems Engineering Gdansk University of Technology Gdansk Poland

ISBN: (纸本)9783902823625

This is a milestone paper of the Coordinating Committee on Manufacturing and Logistics Systems (CC5) of the International Federation of Automatic control (IFAC). Classical applications of control engineering and information and communication technology (ICT) in production and logistics are often done in a rigid, centralized and hierarchical way. These inflexible approaches are typically not able to cope with the complexities of the manufacturing environment, such as the instabilities, uncertainties and abrupt changes caused by internal and external disturbances, or a large number and variety of interacting, interdependent elements. A paradigm shift, e.g., novel organizing principles and methods, is needed for supporting the interoperability of dynamic alliances of agile and networked systems. Several solution proposals argue that the future of manufacturing and logistics lies in network-like, dynamic, open and reconfigurable systems of cooperative autonomous entities. The paper overviews various distributed approaches and technologies of control engineering and ICT that can support the realization of cooperative structures from the resource level to the level of networked enterprises. Standard results as well as recent advances from control theory, through cooperative game theory, distributed machine learning to holonic systems, cooperative enterprise modelling, system integration, and autonomous logistics processes are surveyed. A special emphasis is put on the theoretical developments and industrial applications of Robustly Feasible Model Predictive control (RFMPC). Two case studies are also discussed: i) a holonic, PROSA-based approach to generate short-term forecasts for an additive manufacturing system by means of a delegate multi-agent system (D-MAS);and ii) an application of distributed RFMPC to a drinking water distribution system. © IFAC.

关键词： Adaptive control systems

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RC-NET: A general framework for incorporating knowledge into word representations 14

RC-NET: A general framework for incorporating knowledge into...

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23rd ACM International Conference on Information and Knowledge Management, CIKM 2014

作者： Xu, Chang Bai, Yalong Bian, Jiang Gao, Bin Wang, Gang Liu, Xiaoguang Liu, Tie-Yan College of Computer and Control Engineering Nankai University Tianjin300071 China School of Computer Science and Technology Harbin Institute of Technology Harbin150001 China Microsoft Research 13F Bldg 2 No. 5 Danling St. Beijing100080 China

ISBN: (纸本)9781450325981

Representing words into vectors in continuous space can form up a potentially powerful basis to generate high-quality textual features for many text mining and natural language processing tasks. Some recent efforts, such as the skip-gram model, have attempted to learn word representations that can capture both syntactic and semantic information among text corpus. However, they still lack the capability of encoding the properties of words and the complex relationships among words very well, since text itself often contains incomplete and ambiguous information. Fortunately, knowledge graphs provide a golden mine for enhancing the quality of learned word representations. In particular, a knowledge graph, usually composed by entities (words, phrases, etc.), relations between entities, and some corresponding meta information, can supply invaluable relational knowledge that encodes the relationship between entities as well as categorical knowledge that encodes the attributes or properties of entities. Hence, in this paper, we introduce a novel framework called RC-NET to leverage both the relational and categorical knowledge to produce word representations of higher quality. Specifically, we build the relational knowledge and the categorical knowledge into two separate reg-ularization functions, and combine both of them with the original objective function of the skip-gram model. By solving this combined optimization problem using back propagation neural networks, we can obtain word representations enhanced by the knowledge graph. Experiments on popular text mining and natural language processing tasks, including analogical reasoning, word similarity, and topic prediction, have all demonstrated that our model can significantly improve the quality of word representations. Copyright 2014 ACM.

关键词： Natural language processing systems

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Simulation Analysis of control System in an Innovative Magnetically-Saturated controllable Reactor

Simulation Analysis of Control System in an Innovative Magne...

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第六届亚太电力与能源国际学术会议

作者： Xiao Jin Guoqiang Zhang Runrui Guo Institute of Electrical Engineering Chinese Academy of Sciences School of Computer and Control Engineering University of Chinese Academy of Sciences

controllable saturation reactors are widely used in reactive power *** control system of controllable saturation reactor determines adaption speed, accuracy, and stability. First, an innovative type of controllable saturation reactor is introduced. After that the control system is designed, and a self-tuning algorithm in PID controller is proposed in the paper. The algorithm tunes PID parameters automatically with different error signals caused by varied loads in power system. Then the feasibility of the above algorithm is verified by Simulink module of Matlab software. The results of simulation indicate that the control system can efficiently reduce adaption time and overshoot.

关键词： controllable Saturation Reactor Parameter Self-Tuning PID controller Reactive Power Compensation

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A tuning approach for offset-free MPC with conditional reference adaptation 19

A tuning approach for offset-free MPC with conditional refer...

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19th IFAC World Congress on International Federation of Automatic control, IFAC 2014

作者： Waschl, Harald Jørgensen, John Bagterp Huusom, Jakob Kjøbsted Del Re, Luigi Institute for Design and Control of Mechatronical Systems Johannes Kepler University Linz Austria Department of Applied Mathematics and Computer Science Technical University of Denmark Denmark Department of Chemical and Biochemical Engineering Technical University of Denmark Denmark

ISBN: (纸本)9783902823625

Model predictive control has become a widely accepted strategy in industrial applications in the recent years. Often mentioned reasons for the success are the optimization based on a system model, consideration of constraints and an intuitive tuning process. However, as soon as unknown disturbances or model plant mismatch have to be taken into account the tuning effort to achieve offset-free tracking increases. In this work a novel approach for offset-free MPC is presented, which divides the tuning in two steps, the setup of a nominal MPC loop and an external reference adaptation. The inner nominal loop addresses the performance targets in the nominal case, decouples the system and essentially leads to a first order response. The second outer loop enables offset-free tracking in case of unknown disturbances and consists of feedback controllers adapting the reference. Due to the mentioned properties these controllers can be tuned separate and by known guidelines. To address conditions with active input constraints, additionally a conditional reference adaptation scheme is introduced. The tuning strategy is evaluated on a simulated linear Wood-Berry binary distillation column example. © IFAC.

关键词： Predictive control systems

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Design of a variable-geometry suspension system to enhance road stability

Design of a variable-geometry suspension system to enhance r...

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Mediterranean Conference on control and Automation (MED)

作者： Balázs Németh Balézs Varga Péter Gáspar Systems and Control Laboratory Hungarian Academy of Sciences Budapest Hungary Institute for Computer Science and Control MTA-BME Control Engineering Research Group Hungary

The paper proposes the design of a variable-geometry suspension system, which affects both steering by generating additional steering angle and wheel tilting by modifying the camber angle. The control system must guarantee various performances such as trajectory tracking, the reduction of the chassis roll angle and the minimization of half-track change. The control design is based on a two-step procedure. The performance specifications are met by a high-level control, in which the control input is a required signal. In the low-level control the actuator must track this signal by adjusting its current signal. The advantage of this modular design is that the actuator level does not affect the design of a highlevel control. The operation of the designed control system is illustrated through a simulation example.

关键词： Vehicles Suspensions Actuators control design Uncertainty Vehicle dynamics Wheels

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Cyclic scheduling of multimodal concurrently flowing processes

Cyclic scheduling of multimodal concurrently flowing process...

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International Conference on Systems Science, ICSS 2013

作者： Bocewicz, Grzegorz Wójcik, Robert Banaszak, Zbigniew Koszalin University of Technology Dept. of Computer Science and Management ul. Sniadeckich 2 Koszalin75-453 Poland Institute of Computer Engineering Control and Robotics Wroclaw University of Technology Wroclaw Poland Warsaw University of Technology Dept. of Business Informatics Warsaw Poland

ISBN: (纸本)9783319018560

The problem of cyclic scheduling of multimodal concurrent processes (MCPs) is considered. Processes composed of sub-sequences of local cyclic processes (LCPs) are treated as multimodal processes, e.g. in case local processes encompass the subway lines network the relevant multimodal processes can be seen as passengers traveling itineraries this network. Since LCPs network implies a MCPs behavior, the following fundamental questions arise: Does the given LCPs network guarantee an assumed cyclic schedule of the MCPs at hand? Does there exist the LCPs network such that an assumed cyclic schedule of MCPs can be achieved? In that context our contribution is to propose a declarative framework allowing one to take into account both direct and reverse problems formulation. © Springer International Publishing Switzerland 2014.

关键词： Scheduling

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