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IEEE International Conference on Mechatronics and Automation

作者： Qi Hao Bo Liu Mingxin Wang Jing Zhou Department of Aviation Mechanical Engineering Institute of Army Aviation Beijing Province 101123 China Beijing Aerospace Measurement & Control Technology Co. LTD Beijing Province 100041 China

ISBN: (纸本)9781509023974

In order to optimize the kinematic and dynamic performance of a 2-DoF planar parallel mechanism used in hybrid machines, a multi-objective optimization method is introduced. Based on the compare of the common kinematic analysis method and dynamic analysis method, the kinematic and dynamic performances evaluation indices which can be used in the performance optimization are introduced. Then a multi indices optimization method based on genetic algorithm is investigated to achieve the multi performance optimization of the parallel mechanism. In the optimization method, the kinematic, stiffness and dynamic performances are improved by optimizing the geometric and structural parameters of the parallel mechanism. The simulation result indicates that the optimization method is of practical value to improve the development of the parallel mechanism.

关键词： Parallel mechanism performance optimization global conditioning index comprehensive acceleration ellipsoid genetic algorithm

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Application of model selection methods for the identification of a dynamic boost pressure model

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IFAC-PapersOnLine 2015年第28期48卷 829-834页

作者： Kahl, M. Kroll, A. Kästner, R. Sofsky, M. Measurement and Control Department Faculty of Mechanical Engineering University of Kassel Kassel34109 Germany Actuators and Sensors Department Powertrain Mechatronic Systems Division IAV GmbH Gifhorn38518 Germany

Modeling a technical system requires a lot of effort. Especially, when used for simulation, there are high demands on the models regarding approximation accuracy and computational complexity. As building a model based on physical laws is highly time-consuming, system identification is used increasingly. A key problem in system identification is to select an appropriate model, especially when no a priori information of the considered process is available. This paper treats the application of model selection approaches known from linear regression analysis to the identification of a dynamic boost pressure model for the use in a simulation. © 2015

关键词： Identification (control systems) Dynamic models Nonlinear systems Regression analysis Religious buildings Appropriate models Approximation accuracy Boost pressure Model Selection Model selection methods Model based OPC Priori information Technical systems

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On identifying envelop type nonlinear output error takagi-sugeno fuzzy models for dynamic systems with uncertainties 19

On identifying envelop type nonlinear output error takagi-su...

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

作者： Zaidi, Salman Kroll, Andreas Measurement and Control Department Faculty of Mechanical Engineering University of Kassel Moenchebergstrasse 7 KasselD-34125 Germany

ISBN: (纸本)9783902823625

In modeling of a stochastic nonlinear dynamic system from input-output data, it may be of interest to model uncertainty in the underlying system besides predicting a most likely or average response of the system. Due to stochasticity in the system behavior, the data obtained for identification can be considered as one realization of the underlying stochastic phenomenon. In order to effectively deal with the identification of such systems, it may be advantageous to repeat the identification experiment multiple times under similar conditions. The multiple input-output time series generated in this way thus contain information about stochastic variations within the system. This paper presents one of the possible approaches to effectively deal with identification in such scenario in the framework of Nonlinear Output Error (NOE) Takagi-Sugeno (TS) fuzzy models. Based on extended Chebyshev's inequality for finite samples, the lower and upper boundaries of the output time-series are obtained using (1-α) confidence interval (envelops of the response). The proposed identification algorithm provides a model for predicting the most likely value as well as the boundary models for predicting the envelops of the output signal. The experimental results for an electro-mechanical throttle shows the applicability and validity of the proposed approach. © IFAC.

关键词： Stochastic models

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Global Stabilization via Sampled-Data Output Feedback control for a Class of Nonlinear Systems Subject to Time-Delays

Global Stabilization via Sampled-Data Output Feedback Contro...

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第三十四届中国控制会议

作者： Hongyan Chu Chunjiang Qian Jiquan Yang Shengyuan Xu Wenting Zha Department of Energy and Mechanical Engineering Nanjing Normal University Key Laboratory of 3D Printing Equipment and Manufacturing Nanjing Normal University School of Automation Nanjing University of Science and Technology Department of Electrical & Computer Engineering The University of Texas at San Antonio Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University

ISBN: (纸本)9781467374439

This paper considers the problem of global output feedback stabilization via sampled-data control for a class of uncertain nonlinear systems subject to time delays. The system satisfies a lower-triangular linear growth condition with unknown growth rates. A new inductive method is first introduced to estimate the state growth in the presence of time delays and nonvarnishing nonlinearities. When only the output of the system is measurable, with the help of output domination approach, a sampled-data output feedback controller is constructed to solve the global stabilization problem. The proposed sampled-data controller is linear in structure and therefore can be easily implemented in practice.

关键词： Sampled-data,output feedback,time delay,domination approach

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Guest Editorial for Special Issue on Extensions of Reinforcement Learning and Adaptive control

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IEEE/CAA Journal of Automatica Sinica 2014年第3期1卷 225-226页

作者： Frank L.Lewis Warren Dixon Zhongsheng Hou Tansel Yucelen Institute of Measurement&Control PE TexasU.K IEEE Control Systems Society(CSS) Operations for the Executive Committee of the IEEE CSS Board of Governors the Harbin Institute of Technology the Advanced Control Systems Lab Beijing Jiaotong University the Department of Automatic Control in School of Electronic and Information Engineering Beijing Jiaotong University Mechanical and Aerospace Engineering Department at the Missouri University of Science and Technology Advanced Systems Research Laboratory at the Missouri University of Science and Technology

ADAPTIVE control is a proven method for learning feedback controllers for systems with unknown dynamic models,exogenous disturbances,nonzero setpoints,and unmodeled *** control has been applied for years in process co... 详细信息

关键词： Special issues and sections Learning (artificial intelligence) Adaptive control Feedback

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On Identifying Envelop Type Nonlinear Output Error Takagi-Sugeno Fuzzy Models for Dynamic Systems with Uncertainties

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IFAC Proceedings Volumes 2014年第3期47卷 3226-3231页

作者： Salman Zaidi Andreas Kroll Measurement and Control Department Faculty of Mechanical Engineering University of Kassel Moenchebergstrasse 7 D-34125 Kassel Germany

关键词： Nonlinear system identification fuzzy modeling stochastic modeling uncertainty modeling automobile industry

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Early faults prediction of running state of electromechanical systems and reconfigurable integration of series safety monitoring systems

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仪器仪表学报 2014年第S2期35卷 224-232页

作者： Xu Xiaoli Zuo Yunbo Chen Tao Liu Xiuli Chen Shanpeng Key Laboratory of Modern Measurement & Control Technology Ministry of Education Beijing Information Science and Technology University School of Mechanical and Vehicle Engineering Beijing Institute of Technology Department of Environmental Science and Engineering Faculty of Bioresources Mie University

Fault prediction technology of running state of electromechanical systems is one of the key technologies that ensure safe and reliable operation of electromechanical equipment in health state. For multiple types of modern, high-end and key electromechanical equipment, this paper will describe the early faults prediction method for multi-type electromechanical systems, which is favorable for predicting early faults of complex electromechanical systems in non-stationary, nonlinear, variable working conditions and long-time running state; the paper shall introduce the reconfigurable integration technology of series safety monitoring systems based on which the integrated development platform of series safety monitoring systems is built. This platform can adapt to integrated R&D of series safety monitoring systems characterized by high technology, multiple species and low volume. With the help of this platform, series safety monitoring systems were developed, and the Remote Network Security Monitoring Center for Facility Groups was built. Experimental research and engineering applications show that: this new fault prediction method has realized the development trend features extraction of typical electromechanical systems, multi-information fusion, intelligent information decision-making and so on, improving the processing accuracy, relevance and applicability of information; new reconfigurable integration technologies have improved the integration level and R&D efficiency of series safety monitoring systems as well as expanded the scope of application; the series safety monitoring systems developed based on reconfigurable integration platform has already played an important role in many aspects including ensuring safety operation of equipment, stabilizing product quality, optimizing running state, saving energy consumption, reducing environmental pollution, improving working conditions, carrying out scientific maintenance, advancing equipment utilization, saving mainten

关键词： electromechanical systems early faults safety control monitoring systems reconfigurable integration

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A new pricing scheme for controlling energy storage devices in smart grid

A new pricing scheme for controlling energy storage devices ...

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2014 American control Conference, ACC 2014

作者： Zhu, Jingwei Chen, Michael Z. Q. Zuo, Zhiqiang Du, Baozhu Department of Mechanical Science and Engineering University of Illinois at Urbana-Champaign Champaign IL 61820 United States Department of Mechanical Engineering University of Hong Kong Hong Kong Hong Kong Tianjin Key Laboratory of Process Measurement and Control School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China School of Automation Nanjing University of Science and Technology Nanjing China HKU Shenzhen Institute of Research and Innovation China

ISBN: (纸本)9781479932726

Improvement of the overall efficiency of energy infrastructure is one of the main anticipated benefits of the deployment of smart grid technology. Advancement in energy storage technology and two-way communication in the electric network are indispensable components to achieve such a vision, while efficient pricing schemes and appropriate storage management are also essential. In this paper, we propose a novel pricing scheme which permits one to indirectly control the energy storage devices in the grid to achieve a more desirable aggregate demand profile that meets a particular target of the grid operator such as energy generation cost minimization and carbon emission reduction. Such a pricing scheme can potentially be applied to control the behavior of energy storage devices installed for integration of intermittent renewable energy sources that have permission to grid connection and will have broader applications as an increasing number of novel and low-cost energy storage technologies emerge. © 2014 American Automatic control Council.

关键词： Smart power grids

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A New Pricing Scheme for controlling Energy Storage Devices in Smart Grid

A New Pricing Scheme for Controlling Energy Storage Devices ...

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American control Conference

作者： Jingwei Zhu Michael Z. Q. Chen Zhiqiang Zuo Baozhu Du Department of Mechanical Science and Engineering University of Illinois at Urbana-Champaign Champaign IL 61820 USA. Department of Mechanical Engineering The University of Hong Kong Hong Kong and HKU Shenzhen Institute of Research and Innovation Tianjin Key Laboratory of Process Measurement and Control School of Electrical Engineering and Automation Tianjin University Tianjin 300072 P.R.China. School of Automation Nanjing University of Science and Technology Nanjing P.R.China.

ISBN: (纸本)9781479932757

关键词： Pricing Scheme controlling Energy Storage Devices Smart Grid Smart grids Energy storage devices Pricing Renewable energy renewable energy sources bidirection communication Store management

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A proposed highly-sensitive finger-photoplethysmograph using a sphere-shaped diffuse reflector for non-invasive measurement of blood constituents

Transactions of Japanese Society for Medical and Biological ...

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Transactions of Japanese Society for Medical and Biological engineering 2014年 52卷 O-518-O-519页

作者： Kiyohara, Daiki Nagai, Takashi Lee, Jihyoung Matsumura, Kenta Rolfe, Peter Yamakoshi, Ken-Ichi Tanaka, Naoto Yamakoshi, Yasuhiro Tanaka, Shinobu Nogawa, Masamichi Yamakoshi, Takehiro Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan School of Mechanical Engineering College of Science and Engineering Kanazawa University Kanazawa Japan Ritsumeikan Global Innovation Research Organization Ritsumeikan University Kusatsu Japan Graduate School of Information Science and Technology Hokkaido University Sapporo Japan Department of Automatic Measurement and Control Harbin Institute of Technology Harbin China Showa University School of Medicine Tokyo Japan Yu.sys Corporation Japan Department of Information Systems Engineering Fukuoka Institute of Technology Fukuoka Japan

We aim for accurate non-invasive optical measurement of blood constituents, especially alcohol (BAL) and glucose (BGL), by means of a newly designed integrating sphere finger photoplethysmographic sensor (isFPPG). The sensitivity of the new device was compared with that of a conventional transmittance-type sensor (tmFPPG). We used near-infrared light at 1160-nm, a window in the water absorption spectrum and strong BAL absorption peak, and 1600-nm, a strong absorption peak of BGL. In 8 volunteers, simultaneous measurements of both isFPPG and tmFPPG from the index fingers with both wavelengths were made using a laser-based experimental setup. The difference of signal-to-noise ratios (SNRs) between isFPPG and tmFPPG were evaluated. We found statistically significant higher SNRs with the isFPPG, by factors of 1.58 and 4.80 for the FPPG measurements at 1160-nm and 1600-nm, respectively. Thus, the proposed method at these wavelengths could be particularly useful to reduce influences of the strong water absorption bands. © 2014, Japan Soc. of Med. Electronics and Biol. engineering. All rights reserved.

关键词： Spheres

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