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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 Antwerp, Belgium. 15-20 July 2017 Abstracts

BMC NEUROSCIENCE 2017年第SUPPL 1期18卷 95-176页

作者： [Anonymous] Department of Neuroscience Yale University New Haven CT 06520 USA Department Physiology & Pharmacology SUNY Downstate Brooklyn NY 11203 USA NYU School of Engineering 6 MetroTech Center Brooklyn NY 11201 USA Departament de Matemàtica Aplicada Universitat Politècnica de Catalunya Barcelona 08028 Spain Institut de Neurobiologie de la Méditerrannée (INMED) INSERM UMR901 Aix-Marseille Univ Marseille France Center of Neural Science New York University New York NY USA Aix-Marseille Univ INSERM INS Inst Neurosci Syst Marseille France Laboratoire de Physique Théorique et Modélisation CNRS UMR 8089 Université de Cergy-Pontoise 95300 Cergy-Pontoise Cedex France Department of Mathematics and Computer Science ENSAT Abdelmalek Essaadi’s University Tangier Morocco Laboratory of Natural Computation Department of Information and Electrical Engineering and Applied Mathematics University of Salerno 84084 Fisciano SA Italy Department of Medicine University of Salerno 84083 Lancusi SA Italy Dipartimento di Fisica Università degli Studi Aldo Moro Bari and INFN Sezione Di Bari Italy Data Analysis Department Ghent University Ghent Belgium Coma Science Group University of Liège Liège Belgium Cruces Hospital and Ikerbasque Research Center Bilbao Spain BIOtech Department of Industrial Engineering University of Trento and IRCS-PAT FBK 38010 Trento Italy Department of Data Analysis Ghent University Ghent 9000 Belgium The Wellcome Trust Centre for Neuroimaging University College London London WC1N 3BG UK Department of Electronic Engineering NED University of Engineering and Technology Karachi Pakistan Blue Brain Project École Polytechnique Fédérale de Lausanne Lausanne Switzerland Departement of Mathematics Swansea University Swansea Wales UK Laboratory for Topology and Neuroscience at the Brain Mind Institute École polytechnique fédérale de Lausanne Lausanne Switzerland Institute of Mathematics University of Aberdeen Aberdeen Scotland UK Department of Integrativ

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STATE FEEDBACK STABILIZATION FOR A CLASS OF NONLINEAR TIME-DELAY SYSTEMS VIA DYNAMIC LINEAR controlLERS

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Journal of Systems Science & Complexity 2014年第3期27卷 453-462页

作者： CHAI Lin QIAN Chunjiang School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Southeast University Department of Electrical and Computer Engineering University of Texas at San AntonioSan AntonioTX 78249USA

The dynamic linear state feedback control problem is addressed for a class of nonlinear systems subject to ***,using the dynamic change of coordinates,the problem of global state feedback stabilization is solved for a class of time-delay systems under a type of nonhomogeneous growth *** the aid of an appropriate Lyapunov-Krasovskii functional and the adaptive strategy used in coordinates,the closed-loop system can be globally asymptotically stabilized by the dynamic linear state feedback *** growth condition in perturbations are more general than that in the existing *** correctness of the theoretical results are illustrated with an academic simulation example.

关键词： Dynamic linear controller global stabilization nonlinear time-delay systems state feed-back control.

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Early Pack-Off Diagnosis in Drilling Using an Adaptive Observer and Statistical Change Detection

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IFAC-PapersOnLine 2015年第6期48卷 177-182页

作者： Anders Willersrud Lars Imsland Mogens Blanke Department of Engineering Cybernetics Norwegian University of Science and Technology N-7491 Trondheim Norway Automation and Control Group Department of Electrical Engineering Technical University of Denmark DK-2800 Kgs. Lyngby Denmark AMOS Centre of Excellence Department of Engineering Cybernetics Norwegian University of Science and Technology N-7491 Trondheim Norway

Pack-off is a partially or complete blocking of the circulation flow in oil and gas drilling, which can lead to costly delays. Early detection and localization of a pack-off is crucial in order to take necessary actions avoiding downtime. This incident will affect physical friction parameters in the well. A model-based adaptive observer is used to estimate these friction parameters as well as flow rates. Detecting changes to these estimates can then be used for pack-off diagnosis, which due to measurement noise is done using statistical change detection. Isolation of incident type and location is done using a multivariate generalized likelihood ratio test, determining the change direction of the estimated mean values. The method is tested on simulated data from the commercial high-fidelity multi-phase simulator OLGA, where three different pack-offs at different locations and with different magnitudes are successfully detected at an early stage and with low false alarms.

关键词： Fault diagnosis adaptive observer multivariate statistical change detection oil and gas drilling pack-off

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Hybrid flexure-based multi-level mechanism design supporting centimeter stroke nano manipulator

Hybrid flexure-based multi-level mechanism design supporting...

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第三十四届中国控制会议

作者： Jiajun Tang Zhen Zhang Peng Wang Peng Yan Department of Mechanical Engineering Tsinghua University Beijing Key Lab of Precision/Ultra-Precision Manufacturing Equipment and Control Tsinghua University State Key Laboratory of Fluid Power Transmission and Control Zhejiang University School of Automation Science and Electrical Engineering Beihang University School of Mechanical Engineering Shandong University

ISBN: (纸本)9781467374439

In recent years, flexible micro/nano-positioning stages are designed to achieve large stroke and ultra-high *** paper proposes a novel hybrid flexure hinge and flexure-beam multi-level mechanism design which is able to achieve centimeter stroke nano-positioning. The important features of the proposed design lie in: a multi-level mechanism consists of flexure hinges and beam flexure;a compact size(about 100x100mm) is able to achieve a centimeter stroke. The unique building block is analyzed, and verified by an FEA method. The simulation results show that the parasitic motion is linear to the displacement, and is 0.55% of the stroke. The manufacturing of the proposed design can be conducted by resorting additive manufacturing such as 3D printing.

关键词： Nano-positioning,Large stroke,Beam flexure,Additive manufacturing,Mechatronics.

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Distributed Cooperative Voltage Equalization for Series-Connected Super-Capacitors

Distributed Cooperative Voltage Equalization for Series-Conn...

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American control Conference

作者： Jiangang Liu Zhiwu Huang Jun Peng Jing Wang School of Information Science and Engineering in Central South University Hunan Engineering Laboratory for Advanced Control and Intelligent Automation Changsha 410075 China Department of Electrical and Computer Engineering Bradley University 1501 West Bradley Ave Peoria IL 61625 USA

ISBN: (纸本)9781479917730

In this paper, we propose a distributed cooperative voltage equalization strategy in order to balance the voltages of the series-connected super-capacitors, which is the power supply of energy storage light rail vehicles. Taking each super-capacitor cell as an agent in multi-agent systems, the voltage equalization problem can be formulated as a cooperative tracking problem. The sparse communication network among the super-capacitors in the cyber layer can be modeled by a digraph. As the voltage changes within a limited range, a general saturation function is put forward to guarantee the boundedness of the control input. Based on the nearest neighborhood rule, a bounded voltage equalization controller with tunable control gains is designed accordingly. The proposed voltage equalization methodology is distributed and not using a central controller. Each super-capacitor cell only need its voltage information and its neighbors, the desired control objective can be accomplished by local interaction in a cooperative way. Under the assumption that the digraph has a spanning tree, the asymptotically stability of the overall close-loop system is rigorously proved with the aid of a novel Lyapunov function integrating Lasalle invariant principle. The voltage equalization has been achieved by the proposed cooperative control approach, which is verified by the simulations. under different initial conditions, cooperative objectives and different network sizes.

关键词： Supercapacitors directed graphs control input Electric Power Source Induction loop systems networks(communications) Liapunov function Distribute

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A low cost measurement method for a large stroke XY nano-positioner by using linear optical encoders

A low cost measurement method for a large stroke XY nano-pos...

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第三十四届中国控制会议

作者： Peng Wang Zhen Zhang Peng Yan Department of Mechanical Engineering Tsinghua University Beijing Key Lab of Precision/Ultra-Precision Manufacturing Equipment and Control Tsinghua University State Key Laboratory of Fluid Power Transmission and Control Zhejiang University School of Automation Science and Electrical Engineering Beihang University School of Mechanical Engineering Shandong University

ISBN: (纸本)9781467374439

This paper presents a novel measurement method for a large stroke X Y nano-positioner(mm-stoke and nanometric accuracy). Based on recently proposed flexure-based large stroke X Y nanopositioner, a low cost and simple method is proposed to measure large stroke two-dimensional motion stage. The important feature lies in only two optical gratings are adopted to achieve the measurement for a planner motion, where each optical grating is mounted on a T-shaped flexure beam rather than the ending stage. Moreover the resulting major measurement error is effectively compensated by the designed linear relationship between the stroke and parasitic motion. The experimental results of a 1.0 millimeter circular trajectory tracking is achieved by the proposed method.

关键词： Nano-positioning,Measurement,Mechatronics,Motion control

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Cross-coupled contour tracking control with time-varying internal model of a parallel bi-axis servo gantry

Cross-coupled contour tracking control with time-varying int...

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The Society of Instrument and control Engineers Annual Conference 2015

作者： Yichen Zhou Zhen Zhang Peng Yan Department of Mechanical Engineering Tsinghua University Beijing Key Lab of Precision/Ultra-Precision Manufacturing Equipment and Control Tsinghua University State Key Laboratory of Fluid Power Transmission and Control Zhejiang University School of Automation Science and Electrical Engineering Beihang University School of Mechanical Engineering Shandong University

This paper presents an integrated control strategy for high precision contour tracking of a newly developed parallel bi-axis servo gantry system. In specific, this integrated control method includes a time-varying internal-model-based controller designed to achieve frequency-varying trajectory tracking for each axis, a disturbance observer intended to compensate friction caused by linear guideways, and a modified variable-gain cross-coupling controller for improvement of contour *** simulation comparative results validate the ability of this integrated control strategy to achieve high precision contour performance.

关键词： Cross-coupled control,Disturbance observer,Friction compensator,Internal model,Mechatronics

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Improved SVD Matching Based On Delaunay Triangulation and Belief Propagation

Improved SVD Matching Based On Delaunay Triangulation and Be...

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第27届中国控制与决策会议

作者： Jianfang Dou qin Qin Zimei Tu Xishuai Peng Yuanxiang Li Lijun Li Fangquan Shen Department of Automation and Mechanical and Electrical engineering School of Intelligent Manufacturing and Control EngineeringShanghai Second Polytechnic University Department of Aerospace Information and Control School of Aeronautics and AstronauticsShanghai Jiao Tong University NO.3 Institute of the Second Artillery Armament Academy

ISBN: (纸本)9781479970186

Finding correspondences between pair of images of the same scene is a key problem in computer *** matching images undergo viewpoint change,partial occlusion,clutters and illumination change,there will be a lot of mismatches due to the limited repeatability and discriminative power of *** this paper,we propose a robust matching algorithm that can remove false matches and propagate the correct ones to obtain more matches,thus improve the matching ***,extract SURF(Speeded Up Robust Features) descriptors from the input two images,which can be used to build the proximity *** perform SVD(Singular Value Decomposition) on the proximity matrix to obtain the initial ***,refine the initial matches by the unique property of Delaunay triangulation that can produce the maximum clique of the two Delaunay ***,recover the lost matches with the constraint of dual graph of *** results on Oxford datasets indicate that our algorithm can improve the match performance compared to the RANSAC-based method.

关键词： Image matching Singular Value Decomposition Speeded Up Robust Features Delaunay triangulation Belief Propagation

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Integrated Model of Water Pump and Electric Motor based on BP Neural Network

Integrated Model of Water Pump and Electric Motor based on B...

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Conference on Industrial Electronics and Applications

作者： Qiang Zhu Guoli Li Rui Zhou School of Electrical Engineering and Automation Anhui University Hefei China National Engineering Laboratory of Energy-Saving Motor & Control Technology Anhui University Hefei China Engineering Research Center of Power Quality Ministry of Education Anhui University Hefei China

ISBN: (纸本)9781479984671

In order to construct integration model of combination pump hydraulic model with motor electromagnetic model, this paper use BP neural network structure pump hydraulic fitting model. Train BP neural network on pump performance according to the experimental test data, to make neural network accordance with the characteristics of pump input and output. Then combine with motor electromagnetic calculation model into integration model which could be used to analysis the performance of water pump.

关键词： BP neural network water pump integrated model

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Evolving Ensemble of Fuzzy Models for Multivariate Time Series Prediction

Evolving Ensemble of Fuzzy Models for Multivariate Time Seri...

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IEEE International Conference on Fuzzy Systems

作者： Lourenco Bueno Pyramo Costa Israel Mendes Enderson Cruz Daniel Leite the Dept. of Graduate Program in Electrical Engineering Pontifical Catholic University of Minas Gerais Belo Horizonte Brazil the Dept. of Electronics Federal Center for Technological Education of Minas Gerais Nepomuceno Brazil the Control and Automation Research Group Dept. of Engineering Federal University of Lavras Brazil

ISBN: (纸本)9781467374293

Weather modeling and prediction has been quite a challenge over the years. Predictions based on climatic models whose dynamical behavior is nonlinear, nonstationary, and based on high order difference equations is a tough task and usually requires a demanding and non-intuitive tuning expertise. This paper suggests an ensemble of evolving fuzzy models for multivariate time series prediction. The proposed ensemble approach is able to model the weather dynamics from data streams concerning variables such as wet bulb temperature, atmospheric pressure, maximum temperature, and relative humidity of the air. The purpose is to predict rainfalls 5 days ahead while providing a linguistic description of the reasoning used to give the predictions. Empirical results show that the ensemble-based fuzzy evolving modeling approach outperforms other evolving approaches in terms of accurate predictions.

关键词： Evolving Ensemble Fuzzy Models Multivariate Time Series Prediction

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