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International Conference on Power Electronics Systems and Applications

作者： Li, Yong-Yang Cao, Guang-Zhong Qiu, Hong Pan, J.F. Yang, Chong-Chong Institute of Automation Shenzhen University Shenzhen 518060 China College of Mechatronics and Control Engineering Shenzhen University Shenzhen 518060 China

ISBN: (纸本)9781457702051

Based on the rotor field oriented control principle and space vector PWM technology, a vector control speed regulation algorithm applied to embroidery machines is developed based on DSP. Combined with the theoretical analysis, a kind of Anti-Windup PI controller is adopted based on output feedback calculations, and a discrete simulation model of the vector control speed regulation system is built on Matlab/Simulink platform. After the completion of the system hardware design, the entire control system software design and programming are completed based on the TMS320F2801 fixed-point DSP. Results of simulation and experiments show that the designed system meets the needs of a practical application in spindle actuator of the embroidery machine. © 2011 IEEE.

关键词： Simulink

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Adaptive and repetitive controller for robotic manipulators with slowly updating scheme using B-spline shape function

Adaptive and repetitive controller for robotic manipulators ...

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2011 IEEE International Conference on Robotics and Biomimetics, ROBIO 2011

作者： Rakprayoon, Pannatee Sanposh, Peerayot Chayopitak, Nattapon Intelligent Mechatronics Automation Robotics and Control Laboratory Department of Electrical Engineering Kasetsart University Bangkok 10903 Thailand Industrial Control and Automation Laboratory National Electronics and Computer Technology Center Pathumthani 12120 Thailand

ISBN: (纸本)9781457721373

This paper studies the real-time adaptive and repetitive control problem using the Desired Compensation Learning Law (DCLL) that has the advantage of robustness under the presence of unknown parameters with low memory requirement. The control structure of DCLL consists of a feedforward compensator that is designed by a linear combination of shape functions that is adaptable to parameter variations;hence the selection of appropriate shape functions plays an important role in the adaptive ability and accuracy of DCLL. In this study, the B-spline shape function is proposed to be used under the slowly updating scheme and the obtained results show that the robustness and accuracy of the tracking can be greatly improved even under payload variation and torque limits. © 2011 IEEE.

关键词： Interpolation

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Improved integral fuzzy sliding mode control for a class of nonlinear uncertain systems

Improved integral fuzzy sliding mode control for a class of ...

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作者： Li, Wen-Qiang Li, Peng Li, Lian Zhang, Yi Department of Control Engineering Naval Aeronautical and Astronautical University Yantai 264001 China College of Mechatronics Engineering and Automation National University of Defense Technology Changsha 410073 China

ISBN: (纸本)9789881725592

For the conventional sliding mode control of a class of nonlinear uncertain systems, the ranges of sliding mode error and steady-state error are deduced. In order to reduce the steady-state error while anti-windup, an improved integral sliding surface is designed, and an improved integral fuzzy sliding mode control approach is proposed based on this sliding surface. In this approach, the integral action is reduced through adjust factor when the sliding variable outside the boundary layer. Then, the large overshoots due to the large initial errors can be avoided. When sliding variable inside the boundary layer, the integral action is conventional in order to reduce the steady-state error. The adjust factor is automatically tuned by real time fuzzy inference. Finally, an inverted pendulum control is used to illustrate the effectiveness and robustness of the proposed approach. © 2011 Chinese Assoc of automation.

关键词： Boundary layers

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Feasibility and soft constraint of steady state target calculation layer in LP-MPC and QP-MPC cascade control systems

Feasibility and soft constraint of steady state target calcu...

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作者： Zou, T. Li, H.Q. Zhang, X.X. Gu, Y. Su, H.Y. College of Information Engineering Zhejiang University of Technology China School of Mechatronics Engineering and Automation Shanghai University Shanghai 200444 China State Key Laboratory of Industrial Control Technology Zhejiang University China

This paper mainly focus on the feasibility and soft constraint of steady state target calculation, which is one of inherent problem of predictive control. By using two-stage method, the state target calculation can be solved effectively. To guarantee the existence of feasibility domain, weighting and priority policies are presented to determine the feasibility and adjust soft constraints. Simulation results validate the effectiveness of the proposed approach © 2011 Zhejiang University.

关键词： Cascade control systems

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Development of embroidery machine vector control speed regulation system based on DSP

Development of embroidery machine vector control speed regul...

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International Conference on Power Electronics Systems and Applications (ICPESA)

作者： Yong-yang Li Guang-zhong Cao Hong Qiu J. F. Pan Chong-chong Yang Institute of Automation College of Mechatronics and Control Engineering Shenzhen University Shenzhen China

关键词： Rotors Induction motors Machine vector control Stators Digital signal processing Torque control systems

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Hybrid position, posture, force and moment control with impedance characteristics for robot manipulators

Hybrid position, posture, force and moment control with impe...

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2011 IEEE International Conference on mechatronics and automation, ICMA 2011

作者： Yao, Yu Huang, Qingjiu Peng, Yan Oiwa, Taishi Institute of Robotic Science and Engineering Nanjing University of Technology 5 Xinmofan Rd Nanjing 210009 China Department of Mechanical and Control Engineering Tokyo Institute of Technology 2-12-1-I3-11 Ookayama Meguro-ku Tokyo 152-8552 Japan School of Mechatronics Engineering and Automation Shanghai University Shanghai 200072 China

ISBN: (纸本)9781424481149

There are more and more needs for surface contact works, such as polish, grinding, paint, inspection, etc., with robot manipulators in recent years. In this paper, to achieve high-speed and high-precision surface contact work by robot manipulator, we propose a separation method of posture components to solve the problem of the rotation order, and a method of introducing the impedance characteristics to hybrid position, posture, force and moment control to eliminate the interference between free space and constrained space. Furthermore, the effectiveness of our control method for surface contact work was verified by the dynamic simulation of character-erasing motion on the white board of 6-DOF robot manipulator. © 2011 IEEE.

关键词： Robot applications

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Erratum to “Machine tool feed drives” [CIRP Ann. Manuf. Technol. 60 (2011) 779–796]

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CIRP Annals 2012年第2期61卷 837-837页

作者： Y. Altintas A. Verl C. Brecher L. Uriarte G. Pritschow Manufacturing Automation Laboratory University of British Columbia Vancouver Canada Institute for Control Engineering of Machine Tools and Manufacturing Units (ISW) Stuttgart Germany Machine Tool Laboratory (WZL) University of Aachen Germany Mechatronics Dept. – Tekniker-IK4 Eibar Basque Country Spain

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Fault Diagnosis for Nonlinear Hydraulic-Mechanical Drilling Pipe Handling System

Fault Diagnosis for Nonlinear Hydraulic-Mechanical Drilling ...

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IEEE Conference on Decision and control

作者： Martin Choux Mogens Blanke Mechatronics Group Department of Engineering University of Agder N-4892 Grimstad Norway Automation and Control Group Department of Electrical Engineering Technical University of Denmark DK-2800 Kgs

ISBN: (纸本)9781612848006

Leakage and increased friction are common faults in hydraulic cylinders that can have serious consequences if they are not detected at early stage. In this paper, the design of a fault detector for a nonlinear hydraulic mechanical system is presented. By considering the system in steady state, two residual signals are generated and analysed with a composite hypothesis test which accommodates for unknown parameters. The resulting detector is able to detect abrupt changes in leakage or friction given the noisy pressure and position measurements. Test rig measurements validate the properties of residuals and high fidelity simulation and experimental results demonstrate the performance and feasibility of the proposed method.

关键词： Fault diagnosis fault test device HYDRAULIC CYLINDERS handling system Hypothesis testing high fidelity friction seed drills Pipe residual signal nonlinearity

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A Complementary Modularized Ramp Metering Approach Based on Iterative Learning control and ALINEA

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IEEE Transactions on Intelligent Transportation Systems 2011年第4期12卷 1305-1318页

作者： Zhongsheng Hou Xin Xu Jingwen Yan Jian-Xin Xu Gang Xiong Advanced Control Systems Laboratory School of Electronic and Information Engineering Beijing Jiaotong University BJTU Beijing China Institute of Automation College of Mechatronics and Automation National University of Defense Technology Changsha China Department of Electrical and Computer Engineering National University of Singapore Singapore Automation Institute Chinese Academy of Sciences (CAS) Beijing China

Ramp metering is an effective tool for traffic management on freeway networks. In this paper, we apply iterative learning control (ILC) to address ramp metering in a macroscopic-level freeway environment. By formulating the original ramp metering problem as an output regulating and disturbance rejection problem, ILC has been applied to control the traffic response. The learning mechanism is further combined with Asservissement Linéaire d'Entrée Autoroutière (ALINEA) in a complementary manner to achieve the desired control performance. The ILC-based ramp metering strategy and the modified modularized ramp metering approach based on ILC and ALINEA in the presence of input constraints are also analyzed to highlight the advantages and the robustness of the proposed methods. Extensive simulations are given to verify the effectiveness of the proposed approaches.

关键词： Traffic control Mathematical model Convergence Learning systems Feedforward neural networks

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Design of NC Shoe-last carving machine's HSC tool system

Design of NC Shoe-last carving machine's HSC tool system

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International Conference on Consumer Electronics, Communications and Networks

作者： Zhuoda Jiang Yuntang Hu School of Mechatronics Engineering and Automation Shanghai University Shanghai China Key Laboratory of Numerical Control of Jiangxi Province Jiujiang University Jiangxi China

High Speed Cutting (HSC) is an advanced manufacturing process technology which develops rapidly in recent years. It is also an important orientation in machining technology. It has made significant economic benefits in aviation, aerospace, automotive, mold, high-speed locomotives and other industry applications. Therefore, far-reaching significance will be achieved in improving the level of processing technology. Shoe-last is the basis of shoe making. In NC conventional machining, the speed and the accuracy have mutual affects on each other, while HSC can solve these problems. HSC Tool System is the key part of NC Shoe-last Carving Machine and its design will influence the precision and surface quality of Shoe-last.

关键词： Finite element methods Blades Wheels Machining Materials Analytical models Vibrations

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