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第三十二届中国控制会议

作者： GE Yang WANG Jingcheng LI Kang Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information ProcessingMinistry of Education of China School of Electronics Electrical Engineering and Computer ScienceQueen's University Belfast

ISBN: (纸本)9781479900305

This paper is concerned with the stability and stabilizability problems of networked control systems（NCSs） with partly quantized *** precisely,the remote state variables transported from other sub-systems experience quantization errors,while the local state variables do *** consideration is much more natural in NCSs due to the distributive nature of *** errors are represented as convex poly-topic *** on the Lyapunov-Krasovskii （L-K） functional approach,sufficient conditions for the existence of a quantized robust Hstate feedback controller for NCSs are *** conditions are obtained in terms of bilinear matrix inequalities（BMIs）.Furthermore,a cone complementarity algorithm is utilized to convert these BMIs into a convex optimization ***,a simulation example is provided to demonstrate the efficiency of proposed theorems.

关键词： robust control quantized feedback control partly quantized information

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Variable universe adaptive fuzzy sliding mode control for the two-dimension numerical turntable

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ICIC Express Letters 2013年第11期7卷 3089-3094页

作者： Wang, Degang Huang, Yuanyang Liu, Min Li, Hongxing School of Control Science and Engineering Dalian University of Technology No. 2 Linggong Road Dalian 116024 China Informedia Electronic Co. Ltd Dalian 116001 China Department of Automation Tsinghua University Haidian District Beijing 100084 China

In this paper, design and control for a two dimension visual tracking system are investigated. First, the dynamic model of the two-dimension numerical turntable is obtained and the relationship between the image information of the target and angles of turntable is established. Then, variable universe adaptive fuzzy sliding mode controller is designed to make the moving target be in the center of the image plane. Compared with Proportional-Integral-Differential (PID) control method, this technology can raise the accuracy of tracking system. Numerical simulation and physical experiment illustrate the validity of the conclusion. © 2013 ISSN 1881-803X.

关键词： Phonographs

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A novel feed-forward controller for PMSMs

A novel feed-forward controller for PMSMs

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2013 3rd International Conference on Electric Power and Energy Conversion systems, EPECS 2013

作者： Altun, Yusuf Gulez, Kayhan Mumcu, Tarik Veli Kizilkaya, M. Özgür Faculty of Electrical-Electronics Control and Automation Engineering Yildiz Technical University Istanbul Turkey Aeronautics and Space Tech Inst. Electronic Engineering Department Turkish Air Force Academy Istanbul Turkey

ISBN: (纸本)9781479906888

In this study, the current tracking problem of PMSM is handled as static feed-forward controller design for Linear Parameter Varying (LPV) system. H infinity controller formulated by means of Linear Matrix inequalities (LMI) with bounded and measurable system parameters is used. Parameter-dependent Lyapunov function is preferred to achieve robust stability against inconstant parameters, throughout the control process. The LPV controller is used in two degrees of freedom (2-DOF), by jointly adding static LPV feed-forward controller on a PI feedback controller. Space vector pulse width modulation (SVPWM) is used to generate switching signals. Overall system is simulated by Matlab/Simulink Software to evaluate the validity of the method in transient and steady state response by computer simulation. Simulation results reveal that proposed method has good dynamic performance and robustness. © 2013 IEEE.

关键词： Simulink

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A domain web data standardization organization method

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Information Technology Journal 2013年第22期12卷 6710-6716页

作者： Rui, Cao Rui, Wang Li-Yun, Hao Ling-Da, Wu Science and Technology on Complex Electronic System Simulation Laboratory Academy of Equipment Beijing 101416 China Department of Automatic Control and Systems Engineering University of Sheffield Sheffield SI 4DT United Kingdom Department of Systems Engineering College of Information Systems and Management National University of Defense Technology Changsha 410073 China

In order to enable the Web data to be applied in a non-Internet environment, overcoming the timeliness of Web data, this study proposes a domain Web data standardization organization method. The domain Web standardization organization framework is established and the acquired data are divided into three categories: Structured, un-structured and semi-structured. With respect to the semi-structured data within an implicit scheme, we use a rational code design to transform semi-structured data into structured data. Combining file system and relational database, a standardization organization method is established for the three types of data. Experimental results show that this method is effective and efficient. ©2013 Asian Network for Scientific Information.

关键词： Standardization

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The stabilization of coordinated distributed model predictive control

The stabilization of coordinated distributed model predictiv...

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13th IFAC Symposium on Large Scale Complex systems: Theory and Applications, LSS 2013

作者： Zheng, Y. Li, S.Y. School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Ministry of Education Road Shanghai 200240 China Department of Automation Shanghai Jiao Tong UniversityKey Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China

A stabilized Distributed MPC for large scale system is proposed and its designation is given in this paper for improving the global performance of closed-loop system. To make the performance of closed-loop system more close to that using centralized MPC, each subsystembased MPC added the cost of the entire system into its optimization cost function. In addition, a consistency constraint and dual mode strategy are designed and adopted. Provided an initially feasible solution can be found, subsequent feasibility of the algorithm is guaranteed at every update, and the asymptotic stabilization is established. © IFAC.

关键词： Predictive control systems

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Health Evaluation Method of GEO Satellite Battery Based-On Fuzzy Theory

Health Evaluation Method of GEO Satellite Battery Based-On F...

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2013 IEEE 11th International Conference on electronic Measurement & Instruments

作者： Fang Hongzheng Chen Bing Shi Hui Fan Huanzhen Li Rui Department of Automation Nanjing University of Science and Technology Beijing Key Laboratory of High-speed Transport Intelligent Diagnosis and Health Management Beijing Aerospace Measurement & Control Corp. Ltd. College of Electronic Engineering Naval University of Engineering

ISBN: (纸本)9781479907571

The battery is the energy storage device of the satellite power system. The working life of power system mainly depends on the life of the battery. The health state of the battery refers to the battery current performance deviation from the nominal design performance and indicators, so the performance of the battery in the future can be judged by the health state of the battery. Therefore, the study of the battery health assessment method has an important reference value on the design and the management of the satellite on-orbit. First, the aging and failure of GEO satellite battery is introduced, and the battery structure of the GEO satellite power system is analyzed in this paper. Then the evaluation method of GEO satellite battery based-on fuzzy theory is studied, the flow of the assessment of the battery health status, the calculation method of the symptoms membership degree and weight evaluation matrix are given, the calculation method of the Degree of Failure (DOF) and Degree of Health (DOH) is given, too. Using this method, the health state of the satellite battery can be evaluated and diagnosed. Furthermore, in the simulation experiment, the GEO satellite battery charging and discharging data of 3 years are used to evaluate the health condition, the effective, reliability and accuracy of the battery evaluation model proposed in this paper are also proved out and verified.

关键词： GEO battery DOF DOH fuzzy theory

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Study of time-sync for WirelessHART networks

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Information Technology Journal 2013年第23期12卷 7809-7814页

作者： Li, Shixing Wang, Hong Xu, Aidong Hong, Seung Ho Laboratory of Networked Control Systems Shenyang Institute of Automation Chinese Academy of Sciences Shenyang 110016 China University of Chinese Academy of Sciences Yuquan Road 19# Beijing 100049 China Department of Electronic Systems Engineering Hanyang University Ansan-Si Korea Republic of

WirelessHART is becoming widely used industrial communication standard due to its features such as low cost, low power consumption and strong interoperability. As a research hotspot, time-sync is one of key technologies for WirelessHART networks. Firstly this study summarizes the existing time-sync methods. Secondly, by means of building slot timing model, this study focuses on time slot setting up, active time-sync and passive time-sync processes for WirelessHART network time-sync. The calculation method of time cycle for keep-alive data packets used for keeping time-sync is proposed. The keep-alive data packet cycle of 30 sec is proved reasonable in WirelessHART standard. Finally, test platform is set up using the self-development WirelessHART communication module WH-M and the time-sync mechanism of WirelessHART network is realized. The time-sync error of testing data is small enough to meet the time demand of TDMA in industrial communication fully. © 2013 Asian Network for Scientific Information.

关键词： Time division multiple access

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Automated classification of protein subcellular location patterns on images of human reproductive tissues

Automated classification of protein subcellular location pat...

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3rd Sino-Foreign-Interchange Workshop on Intelligent Science and Intelligent Data engineering, IScIDE 2012

作者： Yang, Fan Xu, Ying-Ying Shen, Hong-Bin Department of Automation Shanghai Jiao Tong University Shanghai China Key Laboratory of System Control and Information Processing Shanghai China Key Laboratory of Optic-Electronic and Communication Jiangxi Science and Technology Normal University Nanchang China

ISBN: (纸本)9783642366680

As one of the most significant characteristics of human cell, subcellular localization plays a critical role for understanding specific functions of mammalian proteins. In this study, we developed a novel computational protocol for predicting protein subcellular locations from microscope cell images in human reproductive tissues. Experiments are performed on a benchmark dataset consisting of 7 major subcellular classes in human reproductive tissues collected from Human Protein Atlas database. We first separated protein and DNA staining in the images with both linear and nonnegative matrix factorization separation methods;then we extracted protein multi-view texture features including wavelet haralick and local binary patterns;finally based on the selected important feature subset achieved by feature selection technique, we constructed ensemble classifier based on support vector machines for predictions. Our experimental results show that 84% accuracy can be achieved through current system, and when only considering the most confident classifications, the accuracy can rise to 98%. © Springer-Verlag 2013.

关键词： Support vector machines

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Identifying peer influence in online social networks using transfer entropy

Identifying peer influence in online social networks using t...

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Pacific Asia Workshop on Intelligence and Security Informatics, PAISI 2013

作者： He, Saike Zheng, Xiaolong Zeng, Daniel Cui, Kainan Zhang, Zhu Luo, Chuan State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Department of Management Information System University of Arizona Tucson AZ 85719 United States School of Electronic and Information Engineering Xi'an Jiaotong University Xi'an China

ISBN: (纸本)9783642396922

The past few years have witnessed the rapid growth of online social networks, which have become important hubs of social activity and conduits of information. Identifying social influence in these newly emerging platforms can provide us with significant insights to better understand the interaction behaviors among online users. However, it is difficult for us to measure the influence quantitatively among user peers, since many key factors such as homophily and heterogeneity, can not be observed in our real world conveniently. More recent work mainly focuses on developing theoretical models based on explicit causal knowledge. Nevertheless, such knowledge is usually not available and often needs to be discovered. In this paper, we introduce a model free approach to formulate causal inferences of behaviors among user peers. Experimental results show that influence measured by our approach could successfully reconstruct the underlying networks structure. Furthermore, two additional case studies based on this approach reveal that influentials wield power through specific venues, which constitute a comparatively small portion of the whole channels. © 2013 Springer-Verlag.

关键词： Social networking (online)

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Efficient Desynchronization of Thermostatically controlled Loads

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IFAC Proceedings Volumes 2013年第11期46卷 245-250页

作者： Jan Bendtsen Srinivas Sridharan Department of Electronic Systems Automation and Control Aalborg University Denmark Department of Mechanical and Aerospace Engineering University of California San Diego California

This paper considers demand side management in smart power grid systems containing significant numbers of thermostatically controlled loads such as air conditioning systems, heat pumps, etc. Recent studies have shown that the overall power consumption of such systems can be regulated up and down centrally by broadcasting small setpoint change commands without significantly impacting consumer comfort. However, sudden simultaneous setpoint changes induce undesirable power consumption oscillations due to sudden synchronization of the on/off cycles of the individual units. In this paper, we present a novel algorithm for counter-acting these unwanted oscillations, which requires neither central management of the individual units nor communication between units. We present a formal proof of convergence of homogeneous populations to desynchronized status, as well as simulations that indicate that the algorithm is able to effectively dampen power consumption oscillations for both homogeneous and heterogeneous populations of thermostatically controlled loads.

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