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IEEE Power and Energy Society General Meeting

作者： Mingyang Li Peter B. Luh Eugene Litvinov Peng Zhang Center for Intelligent and Networked Systems (CFINS) Department of Automation Tsinghua National Laboratory for Information Science & Technology (TNLIST) Tsinghua University Dept. of Electrical & Computer Engineering University of Connecticut ISO New England Inc.

ISBN: (纸本)9781457710001

In future power systems, the Smart Grid technologies will bring in a large number of new entities, which are different from those in the current systems in two major aspects: first, the entities are geographically distributed throughout the system with their detailed information not available to the system operator, and second, the entities tend to autonomously optimize their own benefits. In view of both aspects, it is difficult to use the current centralized framework to operate future systems. In this paper, we present and analyze a new partially decentralized framework and the corresponding mechanisms as one step from the current framework toward the future ones, and the focus is on the real time electricity markets with a dispatch cycle of five minutes. In each dispatch cycle, the system operator posts electricity price forecasts, and individual entities actively respond to the prices to dispatch themselves. The system-wide power imbalance is used as a correction term in the next dispatch cycle to iteratively update the price forecasts, so that system balance is maintained in the long term. The new framework can accommodate the large number of entities without knowing their detailed information, and enable the entities to achieve better economic benefits. Small examples are used to analyze our framework and to compare it with the current one.

关键词： System operation Autonomous entities Renewable generation Decentralized Real time market Electricity price Decentralized Operating systems Dispatching Electricity pricing Frameworks power systems correct entry Smart grids Prices

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2011年第PART 3期6677 LNCS卷

作者： Liu, Derong Zhang, Huaguang Polycarpou, Marios Alippi, Cesare He, Haibo Chinese Academy of Sciences Institute of Automation Key Laboratory of Complex Systems and Intelligence Science Beijing 100190 China Northeastern University College of Information Science and Engineering Shenyang Liaoing 110004 China University of Cyprus Dept. of Electrical and Computer Engineering 75 Kallipoleos Avenue 1678 Nicosia Cyprus Politecnico di Milano Dip. di Elettronica e Informazione Piazza L. da Vinci 32 20133 Milano Italy University of Rhode Island Dept. of Electrical Computer and Biomedical Engineering Kingston RI 02881 United States

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2011年第PART 1期6675 LNCS卷

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2011年第PART 2期6676 LNCS卷

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Common-Mode Voltage Reduction Methods for Medium-Voltage Current Source Inverter-Fed Drives

Common-Mode Voltage Reduction Methods for Medium-Voltage Cur...

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2011 IEEE Energy Conversion Congress and Exposition (ECCE 2011)

作者： Ning Zhu Bin Wu Deiwei (David) Xu Navid R. Zargari Mehrdad Kazerani Dept. of Electrical and Computer Engineering Ryerson University Toronto ON CANADA Medium Voltage Drive R & D Rockwell Automation Cambridge ON CANADA Dept. of Electrical and Computer Engineering University of Waterloo Waterloo ON CANADA

ISBN: (纸本)9781457705427;9781457705410

Common-mode voltages (CMVs) can lead to premature failure of the motor insulation system in medium-voltage (MV) current source inverter (CSI)-fed drives. A series of nonzero-state modulation (NZSM) techniques are proposed for the CMV reduction. In these methods, the zero states are avoided because they generate the CMV peak values in common operating conditions of a CSI drive. The overall performance of the proposed modulation techniques with the corresponding switching patterns is investigated. The simulation results indicate that the CMV magnitude is decreased by half using NZSM. Although there are tradeoffs between the CMV reduction and increase in the device switching frequency, shrink in the modulation index range and deterioration in the waveform quality, an active-zero-state modulation (AZSM2) method is recommended for low-speed CSI-fed motor drives with the best CMV reduction effect. The near-state modulation (NSM-S1) technique can be applied to a CSI working at a modulation index higher than 0.67.

关键词： Cytomegalovirus Medium pressures waveform quality DRIVES Automobile driving common mode voltage inverter-fed premature failure Simulation results Current sources

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Fault diagnosis of regulating valve based on power Spectrum 2

Fault diagnosis of regulating valve based on power Spectrum

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2011 2nd ETP/IITA Conference on Telecommunication and Information, TEIN 2011

作者： Wenbing, Wu Shuqun, Yang Yijian, Huang Dept. of Computer Fuzhou Technical College of Foreign Studies Fuzhou Fujian China School of Information Science and Technology Xiamen University Xiamen Fujian China Faculty of Software Fujian normal university Fuzhou Fujian China College of Mechanical Engineering and Automation Huaqiao University Quanzhou Fujian China

ISBN: (纸本)9789881824202

Speed-regulating valve is an important component of a hydraulic system, and it is easy to go wrong. How to diagnose the faults is very important for the maintenance of mechanic system. By means of wavelet packet, this paper first extracts features from the power spectrum of signals in normal and fault state respectively, then the features are input to a LSSVM as parameters to diagnose faults, and the result is satisfactory. ©2011 ETP.

关键词： Failure analysis

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Using temporal video annotation as a navigational aid for video browsing 10

Using temporal video annotation as a navigational aid for vi...

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Adjunct proceedings of the 23nd annual ACM symposium on User interface software and technology

作者： Müller, Stefanie Miller, Gregor Fels, Sidney Dept. of Automation and Computer Science University of Applied Sciences Harz Canada Dept. of Electrical and Computer Engineering University of British Columbia Canada

ISBN: (纸本)9781605588438

Video is a complex information space that requires advanced navigational aids for effective browsing. The increasing number of temporal video annotations offers new opportunities to provide video navigation according to a user's needs. We present a novel video browsing interface called TAV (Temporal Annotation Viewing) that provides the user with a visual overview of temporal video annotations. TAV enables the user to quickly determine the general content of a video, the location of scenes of interest and the type of annotations that are displayed while watching the video. An ongoing user study will evaluate our novel approach.

关键词： video annotation video search video navigation video browsing

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Compact 2D facial animation based on context-dependent visemes 10

Compact 2D facial animation based on context-dependent visem...

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Proceedings of the SSPNET 2nd International Symposium on Facial Analysis and Animation

作者： Costa, Paula Dornhofer Paro De Martino, José Mario Dept. of Computer Eng. and Ind. Automation School of Electrical and Computer Engineering University of Campinas Brazil

The expansion of mobile communications and the technological evolution of portable devices, raised new applications possibilities that demands the development of more efficient and intuitive interfaces.

ISBN: (纸本)9781450305228

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SoC-based software-hardware codesign of intelligent diagnosis

SoC-based software-hardware codesign of intelligent diagnosi...

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2010 International Symposium on computer, Communication, Control and automation, 3CA 2010

作者： Huang, Chung-Chi Lin, Kuan-Chen Huang, Cong-Hui Lin, Hsin-Pu Liu, Cheng-Wei Dept. of Automation and Control Engineering Far East University Tainan Taiwan Dept. of Computer Application Engineering Far East University Tainan Taiwan

ISBN: (纸本)9781424455669

This study develops and implements a SoC-based HW/SW (Hardware-Software) codesign for an intelligent diagnostic system. To improve the efficiency of the VLSI (Very Large Scale Integration) design process, the components of the intelligent diagnostic system are designed in the form of SIP (Silicon Intellectual Property) modules. The SIP modules, including the CPU module, the GPIO (General Purpose I/O) module and the NN (Neural Network) module, are then integrated to form the complete intelligent diagnostic system. In constructing the system, an embedded processor is employed to run software programs. In addition to integrating the hardware architecture, this study also develops application software, comprising a bootloader, a UARTcomm module and a main program for human machine interface, to drive the embedded processor. The SoC-based HW/SW codesign method employed in this study increases the efficiency of the system design process and reduces the rebuild time. The results of the experimental trials verify the successful performance of the developed intelligent diagnostic system. © 2010 IEEE.

关键词： Hardware-software codesign

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Model predictive control for transformerless shunt hybrid power filters

Model predictive control for transformerless shunt hybrid po...

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2010 International Power Electronics Conference - ECCE Asia -, IPEC 2010

作者： Geng, Hua Yang, Geng Xu, David Wu, Bin Automation Dept. Tsinghua Univ. Beijing China Dept. of Electrical and Computer Engineering Ryerson Univ. Toronto Canada

ISBN: (纸本)9781424453955

A model predictive controller (MPC) for transformless shunt hybrid power filters (SHPF) is proposed in this paper to compensate the harmonics generated by nonlinear load. In the proposed MPC, discrete time model of SHPF is employed to predict the next current values for all possible space vectors. The vector which minimizes a cost function is selected as the next switching vector. The steady-state and dynamic performances of MPC with different types of nonlinear loads are verified with simulation results. The traditional MPC has good robustness to the parameter deviations of resistance and inductance but sensitive to the capacitance. In this paper, the robustness is highly improved with additional capacitor voltage detections. © 2010 IEEE.

关键词： Model predictive control

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