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The 16th International Conference on Fluid Dynamic and Mechanical & Electrical Control Engineering(FDMECE2012)

作者： Hao Zeng Rui-Bo Yuan Zu-shun He Peng Yi Institute of Optical Hydromechatronics System Integration and Control Engineering Faculty of Mechanical and Electrical EngineeringKunming University of Science and Technology

ISBN: (纸本)9783037855164

For a series of non-linear factors of compression,friction,air pressure and load changing in the pneumatic system,it impact seriously on low-speed precision and stability of the pneumatic servo *** the sliding mode variable structure has a good anti-interference ability and capacity of the model parameter perturbation,in this paper we use the above control strategy to solve the unmodeled part of the pneumatic system dynamics and bounded disturbances,so it can improve accuracy and stability of the aerodynamic servo *** simulation results indicate that the system combined with sliding mode variable structure strategy has better anti-jamming capability and response speed than the traditional PID control strategy.

关键词： Pneumatic manipulator Speed servo control system sliding mode variable structure Dynamic performance Simulation analysis

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Paper: sliding mode Control of Lateral Semi-Active Suspension of High-Speed Train

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JOURNAL OF ADVANCED COMPUTATIONAL INTELLIGENCE AND INTELLIGENT INFORMATICS 2020年第7期24卷 925-933页

作者： He, Jing Liu, Zhitian Zhang, Changfan Hunan Univ Technol Coll Elect & Informat Engn 88 Taishan Rd Zhuzhou 412007 Hunan Peoples R China

A control algorithm for lateral semi-active suspension based on sliding mode observer is proposed to solve lateral vibration of high-speed trains caused by railway surface excitation. Firstly, the multi-degree-of-freedom vehicle dynamics model of high-speed train is revised on the basis of variation in spring coefficient caused by long-time vibration in practical engineering;Secondly, the observer based on sliding mode variable structure is designed to obtain real-time estimation of unknown interference terms using the equivalent control principle of sliding mode variable structure, which can be further used to calculate the observed values of unknown interference terms;Finally, a control algorithm based on sliding mode observer is proposed. The algorithm inputs complex unknown interference observed values into the sliding mode controller (SMC) as feedback, thereby allowing the observed values to accurately track nonlinear unknown disturbance and weaken the vibration. Stimulation and experimental verification have proven the effectiveness and feasibility of the proposed method.

关键词： high-speed train semi-active suspension system time-varying spring coefficient sliding mode variable structure

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Adaptive sliding mode Guidance Law with Terminal Impact Angle Constraint 6th

Adaptive Sliding Mode Guidance Law with Terminal Impact Angl...

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6th International Conference on Communications, Signal Processing, and Systems (ICCSPS)

作者： Fang, Dan Zhang, Kuanqiao Zheng, Xu Ci, Renzhaxi Mech Engn Coll Missile Dept 97 Heping West Rd Shijiazhuang 050003 Hebei Peoples R China

ISBN: (纸本)9789811065712;9789811065705

Aiming at the requirements of some guided weapons with attack accuracy and terminal attack angle constraint, an adaptive sliding mode guidance law with terminal impact angle constraint is proposed based on sliding mode variable structure control theory. This guidance law chooses the angular rate of the line of sight as the sliding mode, introduces the angular constraint, regards the target maneuvering as limited disturbance, and the stability of the guidance law is analyzed by using Lyapunov theory. In the meanwhile, the chattering phenomenon is substantially weakened by the combination of variable switching term and saturation function. Finally, the simulation is made by applying the guidance law to the missile real model, and the results show that compared with traditional algorithm, the designed guidance law can hit the target with less miss distance and impact angle error.

关键词： Guidance law Impact angle constraint sliding mode variable structure Finite time convergence Adaptive approach law

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Yaw Moment Control Strategy for Four Wheel Side Driven EV

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AUTOMATIC CONTROL AND COMPUTER SCIENCES 2018年第1期52卷 32-39页

作者： Zhu Zhao Du Ronghua Hunan Mech & Elect Polytech Dept Automot Engn Changsha 410151 Hunan Peoples R China Changsha Univ Sci & Technol Dept Automot & Mech Engn Changsha 410004 Hunan Peoples R China

When four wheel side driven EV travals in steering or changes lanes in high speed, the vehicle is easy to side-slip or flick due to the difference of wheel hub motor and a direct effect of vehicle nonlinear factors on vehicle yaw motion, which would affect vehicle handling and stability seriously. To solve this problem, a joint control strategy, combined with the linear programming algorithm and improved sliding mode algorithm, which combines the exponential reaching law and saturation function was proposed. Firstly, the vehicle dynamics model and the reference model according with the structure and driving characteristics of four wheel side driven EV were set up. Then, introduced the basic method of the improved sliding mode variable structure control and complete the sliding mode variable structure controller design basic on vehicle sideslip angle and yaw velocity. The controller accomplish optimal allocation of vehicle braking force through a linear programming algorithm, according to yaw moment produced by the vehicle motion state. Single lane driving simulation results show that the proposed control strategy can not only control vehicle sideslip angle and yaw velocity well, but also accomplish good controlling of the vehicle yaw moment, so as to significantly improve the handling and stability of vehicle.

关键词： wheel side drive sliding mode variable structure yaw moment control optimal allocation

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Coordinated Control of sliding mode and Hamiltonian for PWM Rectifier

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International Journal of Plant Engineering and Management 2018年第1期23卷 44-52页

作者： LI Lian-qiang GAO Jun-wei Qingdao University Shandong Qingdao 266071China

Aiming at the PWM rectifier control strategy of sliding mode control, steady state performance weak Hamiltonian control dynamic tracking performance is poor, the coordinated compound control is proposed, the feedback linearization controller and sliding mode controller Hamiltonian system is obtained, and the design of a coordinated control strategy. In order to verify the accuracy of this method, MATLAB/Simulink is used for simulation analysis. The simulation results show that the composite control can achieve the coordinated dynamic rapid tracking and constant DC output and unit power factor operation, and satisfy the control requirements of the rectifier, effectively reducing the disturbance effect on the system. Compared with Hamiltonian control, the proposed method combines the advantages of the two methods, which have the fast tracking performance and excellent steady-state characteristics, and the research prospect is broad.

关键词： PWM rectifier Hamiltonian control sliding mode variable structure feedback linearization coordinated control

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Study and Simulation of Crane Lifter Sensorless System Based on sliding mode variable structure

Study and Simulation of Crane Lifter Sensorless System Based...

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2011 International Conference on Informatics,Cybernetics,and Computer Engineering(ICCE 2011)

作者： Feipeng Lou Xinjin Wang Lingzhi Cao Zhengzhou University of Light industry School of Electrical and Electronic Engineering

The mathematical model of crane lifter system is established based three-phase permanent magnet synchronous motor as the power source. To achieve sensorless closed-loop control of crane lifter system, speed controller is designed using sliding mode variable structure and the system lifting speed is estimated applying model reference adaptive observer. Simulation studies have shown that adaptive observer can estimate the speed of movements accurately, sliding mode variable structure speed controller can ensure that the system has good static and dynamic speed performance and strong anti-disturbance capacity of the load.

关键词： crane lifter system sensorless sliding mode variable structure adaptive

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Active magnetic bearing system based on sliding mode control

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modeRN PHYSICS LETTERS B 2017年第19-21期31卷

作者： Zhang, Yanhong Changzhou Inst Technol Sch Elect & Photoelect Engn 666 Liaohe Rd Changzhou 213000 Jiangsu Peoples R China Jiangsu Univ Sch Elect & Informat Engn 301 Xuefu Rd Zhenjiang 212013 Jiangsu Peoples R China

A new sliding mode variable structure control algorithm suitable for active magnetic bearing is proposed, which is widely used for nonlinear control system. The model and controller is designed, simulation and experimental parts are also made, according to the switching function and the sliding mode control law. The current of electromagnet is adjusted to realize stab lelevitation of the rotor. The experimental result shows that the sliding mode variable structure controller is an effective way for magnetic bearing control, and the active magnetic bearing system is a highly nonlinear and advanced control method that can reduce the setting time and the cost.

关键词： sliding mode variable structure active magnetic levitation nonlinear control system switching function performance index

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Coordinated control of sliding mode and Hamiltonian for PWM rectifier

Coordinated control of sliding mode and Hamiltonian for PWM ...

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Chinese Automation Congress (CAC)

作者： Yan, GuoJun Yu, HaiSheng Qingdao Univ Coll Automat & Engn Qingdao Peoples R China

ISBN: (纸本)9781538635247

Aiming at the problems of Mill rectifier control strategy of sliding mode control, steady state performance weak Hamiltonian control dynamic tracking performance is poor, this paper proposed a coordinated compound control, feedback linearization controller and sliding mode controller Hamiltonian system is obtained, and the design of a coordinated control strategy. In order to verify the accuracy of this method, cilatlab/Simulink is used for simulation analysis. The simulation results show that the composite control can achieve the coordinated dynamic rapid tracking and constant DC output and unit power factor operation, and satisfy the control requirements of the rectifier, effectively reducing the disturbance effect on the system. Compared with Hamiltonian control, the proposed method combines the advantages of the two methods, which have the fast tracking performance and excellent steady-state characteristics. The research prospect is broad

关键词： PWM rectifier Hamiltonian control sliding mode variable structure feedback linearization coordinated control

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Research on the sliding mode Control in Cam Grinding

Research on the Sliding Mode Control in Cam Grinding

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2017 2nd International Conference on Computer, Mechatronics and Electronic Engineering(CMEE 2017)

作者： Xiu-mei CHEN Bao-ying PENG Qi-guang LI Huai-jian XIA Beijing Information Science & Technology University

It is difficult to obtain the cam profile accurately in cam grinding because of the complicated contour, the grinding force fluctuate, the tracking performance of the servo system and other interferential factors. The tracking performance of the servo system has a great influence on the cam profile error and leads to the reduction of the cam profile precision. In order to reduce the profile error of cam and improve the machining accuracy, the tracking performance of each servo axis is improved by using sliding mode variable structure control method. The sliding mode variable structure controller adopting the method of proportional switching, quasi-sliding mode and dynamic switching function are designed respectively. The simulation analysis are carried out, and the results of simulation show that the tracking error can be reduced effectively using the sliding mode variable structure control in cam.

关键词： sliding mode variable structure Servo system Quasi-sliding mode Dynamic switching function

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Adaptive variable structure control of flight control system 7

Adaptive variable structure control of flight control system

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IEEE Chinese Guidance, Navigation and Control Conference (CGNCC)

作者： Shi, Jun-Peng Liu, Jian-Wei Lan, Bi Yang, Pu Nanjing Univ Aeronaut & Astronaut Coll Automat Engn Nanjing 211100 Jiangsu Peoples R China Shanghai Aircraft Mfg Co Ltd China Shanghai 200000 Peoples R China

ISBN: (纸本)9781467383189

In this paper, a control method using sliding mode variable structure control combined with adaptive control is proposed. Based on Lyapunov stability theory, a sliding mode variable structure controller is designed to ensure that the closed-loop system is asymptotically stable in system faulty cases. Then, a modified control law is designed to cope with the situation that without knowing the upper bound of the perturbation. At last, The fault tolerant control is carried out on the fault of the system failure of the flight control system. Finally, simulation results demonstrate the feasibility and effectiveness of the proposed theory by using MATLAB software.

关键词： flight control system fault tolerant control sliding mode variable structure adaptive control

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