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2009中国控制与决策会议

作者： Wang Li-mei,Wu Lin School of Electrical Engineering,Shenyang University of Technology,Shenyang 110178,China

＜正＞The paper discussed an adaptive friction compensation scheme based on Coulomb friction and a parameter *** model reference adaptive system based on Coulomb friction was designed to compensate the friction *** designed model reference adaptive parameter identifier was combined with the adaptive friction compensation system and the mover mass was identified by the parameter identifier to update mover mass in the model reference adaptive control system based on Coulomb *** results show that the position tracking precision of system and robustness were improved.

关键词： permanent magnet linear synchronous motor(PMLSM) friction compensation model reference adaptive control parameter identification

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The Research of Vibration Reduction of EMS Maglev Vehicles Based on Semi-active control

The Research of Vibration Reduction of EMS Maglev Vehicles B...

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第37届中国控制会议

作者： LI Songqi ZHANG Kunlun LIU Guoqing CAI Liangcheng Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle Ministry of Education Southwest Jiaotong University School of Electrical Engineering Southwest Jiaotong University

In order to study the vibration reduction method of EMS（Electromagnetic Suspension） maglev train, a dynamics model of the vehicle-track of the magnetic levitation system is established. The 3 kinds of semi-active control method to vehicle body vibration is analyzed and compared, and a semi-active control method is proposed, which is based on the acceleration damping as the supplement of the velocity damping in the control of the sky – hook. The analysis shows:（1） Semi active control is adopted in the two series suspension, which can effectively restrain the vibration of the car body of EMS maglev system, the effects is better than passive suspension system.（2） Two series suspension with different methods of vibration reduction will have an impact on the vibration of the suspension frame.（3）When the vertical vibration of the vehicle body is reduced by semi active control, the force of the two series suspension transmission to the suspension frame can be reduced, and the suspension frame vibration can be reduced to a certain extent.（4） Acceleration damping is adopted as the supplement of the velocity damping in the control of the sky hook, the calculation speed is fast, and the performance is close to that of the LQR semi-active control, the method is simple and suitable for application in engineering.

关键词： maglev vehicles model reference adaptive control nonlinear control system dynamics

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adaptive Analytic model Predictive controller for Path Following of Underactuated Ships

Adaptive Analytic Model Predictive Controller for Path Follo...

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第三十届中国控制会议

作者： WANG Xiaofei~1,ZHANG Baohua~1,CHU Deying~1,WANG Huaming~2 1.Offshore Heavy Industries Design&Research Institute,Shanghai Zhenhua Heavy Industries Company Limited, Shanghai 200125,P.R.China 2.School of Naval Architecture and Civil Engineering,Zhejiang Ocean University,Zhoushan 316000,P.R.China

＜正＞This An analytic model predictive control in parallel with the model reference adaptive control algorithm is presented for path following of underactuated ships along a predefined path at a constant forward speed with uncertain *** ship dynamics is described by using Serret-Frenet frame,and the output-redefinition is *** a result,the well-defined relative degree is guaranteed,and the original single-input multiple-output（SIMO） system is transformed into an equivalent single-input single-output（SISO） *** analytic model predictive control provides a systematic method to get appropriate control parameters to guarantee the stability of the closed-loop *** model reference adaptive control is used to identify the uncertain *** of the algorithm is proved by using Lyapunov *** simulations are provided to validate the proposed control law.

关键词： Underactuated ship Path following model predictive control Serret-Frenet frame model reference adaptive control

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Output-Feedback MRAC for Continuous State Delay Systems: the Relative Degree Two case

Output-Feedback MRAC for Continuous State Delay Systems: the...

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第二十六届中国控制会议

作者： Kamali Marzieh Askari Javad Electrical ＆ Computer engineering Department Isfahan University of TechnologyIsfahanIRAN

In this paper,model reference adaptive control （MRAC） of linear continuous-time state delay systems is pre- sented with the assumption that the relative degree of the system without delay be ***,a new two component con- troller structure was developed for state delay systems in which the relative degree of system without delay was assumed to be *** have combined the two component controller structure with the well known Monopoli’s algorithm for systems with relative degree two,to extend the design for the relative degree two ***-loop system stability and error convergence is proved by using a suitable Lyapunov-Krasovskii *** effectiveness of the theoretical results has been illustrated through simulation results.

关键词： State delay systems model reference adaptive control Relative degree two

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Research of MRAC on Intervals between Arriving Flights controlling

Research of MRAC on Intervals between Arriving Flights Contr...

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2010 Chinese control and Decision Conference

作者： Shiwei ZHAO~1 Keqiang HUA~1 Peng ZHANG~1 Guo WEI~1 1.Engineering Techniques Training Center,Civil Aviation University of China,Tianjin 300300,China

＜正＞In this paper,the problem of interval controlling between arriving flights is *** to character of arriving flights dynamic process,bring forward reasonable assumption,and convert problem of arriving flights’ interval controlling,whose attribute is discrete event dynamic system,into problem of generalized dynamic system *** analyzing actual measuring data,establish model of arriving flights dynamic process by identification technology,and design arriving flights interval control system with method of model reference adaptive control（MRAC）.Adopting MATLAB to carry out simulation,result shows that arriving flights’ intervals variance obviously reduces and process of arriving flights becomes *** supplies new way to research and develop air traffic control（ATC） assistant decision system,and realize ATC automation.

关键词： Interval controlling Discrete event Dynamic System model reference adaptive control Air Traffic control

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Applicahon of a Simplified model reference adaptive Algorithm

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Journal of Beijing Institute of Technology 1994年第1期3卷 90+82-90页

作者：王丽艳宫小东金志立曹泛北京理工大学自动控制系

The application of a simplifed model reference adaptive control(SMRAC) on a typical Pump controlled motor electrohydraulic servo system is studied here. The algorithm of first-order scalar SMRAC ac second-order vector SMRAC are derived. Computer simulations of the algorithms are presented. Experimental results prove that the method of control adopted here perform satisfactorily over a wide range of operating conditions.

关键词： model reference adaptive control digital control electrohydraulic servo system

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维普期刊数据库

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DECENTRALIZED adaptive control FOR LINEAR TIME INVARIENT SYSTEMS WITH FIRST ORDER INTERCONNECTIONS

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Transactions of Nanjing University of Aeronautics and Astronautics 1999年第1期16卷 80-85页

作者：黄金泉孙健国南京航空航天大学动力工程系

A new decentralized adaptive control scheme is presented for linear time invariant systems with first order interconnections. The proposed control scheme with “proportional plus integral” terms is used to improve the convergence rate and the ultimate bound of the tracking error. It is important to note that the adaptive scheme uses lower adaptive gains and smaller control inputs to avoid input saturation and oscillatory behavior. Simulation results are illustrated for controlling a dual inverted pendulum and a multivariable turbofan engine using the proposed adaptive scheme. These simulations validate out conclusions.

关键词： decentralized control model reference adaptive control control law numerical simulation

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维普期刊数据库

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Application of Fuzzy Modification Strategy in MRAC

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Journal of Beijing Institute of Technology 1995年第1期4卷 72+67-72页

作者：王丽艳金志立曹泛北京理工大学自动控制系

Based on a simplified model reference adaptive control(SMRAC) algorithm a parameter modification algorithm according to fuzzy laws is proposed in this paper. The method makes the adaptive parameters in SMRAC only rely on the status of performance error. Thus it eliminates the influences of gain coefficients in SMRAC and the amplitude of input signal on the dynamic characteristics. Experiments on various step amplitudes and loads show that the performances of SMRAC are improved by incorporating fuzzy modification method.

关键词： model reference adaptive control process control electrohydraulic servo system/fuzzy modification

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维普期刊数据库

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