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43rd Chinese Control Conference (CCC)

作者： Jiang, Jiawen Zhu, Wanlu Zhi, Pengfei Jiangsu Univ Sci & Technol Coll Automat Zhenjiang 212000 Jiangsu Peoples R China

ISBN: (纸本)9798350366907;9789887581581

With the continuous progress of today's control theory and microelectronics technology, brushless direct current motor (BLDCM), as the product of the combination of the above technologies, has been widely used in the field of motor systems from the earliest application in the field of military aviation to the current popularity in the field of industry, transportation and household appliances. However, the problems of starting and low speed performance caused by torque pulsation greatly limit its development in the field of higher precision requirements. On this basis, the sliding mode variable structure is applied to the torque setting module of BLDCM-DTC instead of the traditional PI control. The sliding mode control method based on traditional linear sliding mode surface and exponential approach rate is analyzed, and then the sliding mode control method based on nonlinear integral sliding mode surface and hybrid approach rate is designed. Analysis of modeling and simulation.

关键词： Brushless DC motor Torque control sliding mode variable structure

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The Design Method of Quasi-sliding mode variable structure Controller for Missile Inclined Channel

The Design Method of Quasi-Sliding Mode Variable Structure C...

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International Conference on Industrial Automation, Robotics and Control Engineering (IARCE)

作者： Lu, Juanzhi Liu, Lin Ma, Fei Xian Modern Control Technol Res Inst Xian 710065 Peoples R China

ISBN: (纸本)9781665454407

A special quasi-sliding mode variable structure control method based on an exponential approach is proposed in this paper, aiming at the situation that the drastic changes in the parameters of the missile body caused by the changes in the speed, altitude and environment during the whole flight process that make it difficult to control the inclined channel. Quasi-sliding mode variable structure control is a kind of discontinuous nonlinear control. When the state of the system meets certain conditions, the control structure of the system will change, and the good motion state can be used, and the unfavorable motion state can be avoided, thereby obtaining a better state and good control performance, but basic synovial control suffers from chattering. This improved sliding mode variable structure in this paper can not only meet the performance requirements of inclined channel well, but also can effectively weaken the chattering phenomenon caused by the basic variable structure control. The rationality and effectiveness of this method are verified by mathematical simulation.

关键词： sliding mode variable structure controller design of inclined channel mathematical simulation

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sliding mode variable structure OBSERVER-BASED SENSOR AND ACTUATOR FAULT RECONSTRUCTION FOR NONLINEAR SYSTEM

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INTERNATIONAL JOURNAL OF ROBOTICS & AUTOMATION 2021年第10期36卷

作者： He, Jing Zhang, Changfan Chu, Houguang Hunan Univ Technol Coll Elect & Informat Engn Zhuzhou Peoples R China State Grid XinJiang Elect Power Res Inst Urumqi Xinjiang Peoples R China

This paper presents the design of a sliding mode variable structure observer, which is used for the fault detection and isolation of sensors and actuators in uncertain nonlinear systems. Firstly, the coordinate of a system output equation is transformed, and a sensor fault is equivalent to an actuator one by using a low-pass filter. Then using a coordinate transformation to transform the equivalent equation into three sub-systems, and the uncertainties only exist in the second one, while the first contains actuator faults and the third has equivalent actuator faults. The design of three observers, respectively, corresponding to the above sub-systems, the actuator faults, sensor faults as well as the unknown input disturbances are reconstructed separately as a result. Two simulation examples confirm the truth of effectiveness of the reconstruction plan.

关键词： Fault reconstruction sliding mode variable structure observers

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sliding mode variable structure Control on Vienna Rectifier 32

Sliding Mode Variable Structure Control on Vienna Rectifier

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32nd Chinese Control And Decision Conference (CCDC)

作者： Huang, Xiping Ma, Danyang Chen, Xi Xian Univ Technol Sch Automat & Informat Engn Xian 710048 Peoples R China

ISBN: (纸本)9781728158556

Based on the mathematical model of Vienna rectifier, the controller of Vienna rectifier is researched and designed. The voltage outer loop adopt the sliding mode variable structure control (SMC), in order to obtain a stable DC output voltage when Vienna rectifier is starting or is affected by the load disturbance and so on. The deviation of the output voltage is selected as the sliding mode switching function. For the chattering problems of the traditional index approach rate, the variable index approach law is proposed in this paper. The current inner loop uses model predictive control on finite set (FCS-MPC) of no modulation unit, easy to add constraints, strong anti-interference ability. Finally, the proposed control strategy is simulated. The simulation results show that the method is correct and effective,the Vienna rectifier has strong robustness and anti-interference ability.

关键词： Vienna Rectifier sliding mode variable structure The variable Index Approach Law model Prediction Control on Finite Set

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Research on BLDCM DTC torque setting based on sliding mode variable structure

Research on BLDCM DTC torque setting based on sliding mode v...

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第43届中国控制会议

作者： Jiawen Jiang Wanlu Zhu Pengfei Zhi College of Automation Jiangsu University of Science and Technology

ISBN: (数字)9789887581581

ISBN: (纸本)9798350366907

With the continuous progress of today's control theory and microelectronics technology,brushless direct current motor(BLDCM),as the product of the combination of the above technologies,has been widely used in the field of motor systems from the earliest application in the field of military aviation to the current popularity in the field of industry,transportation and household appliances. However,the problems of starting and low speed performance caused by torque pulsation greatly limit its development in the field of higher precision requirements. On this basis,the sliding mode variable structure is applied to the torque setting module of BLDCM-DTC instead of the traditional PI control. The sliding mode control method based on traditional linear sliding mode surface and exponential approach rate is analyzed,and then the sliding mode control method based on nonlinear integral sliding mode surface and hybrid approach rate is designed. Analysis of modeling and simulation.

关键词： Brushless DC motor Torque control sliding mode variable structure

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sliding mode variable structure Control on Vienna Rectifier

Sliding Mode Variable Structure Control on Vienna Rectifier

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第32届中国控制与决策会议

作者： Xiping Huang Danyang Ma Xi Chen School of Automation and Information Engineering Xi'an University of Technology

Based on the mathematical model of Vienna rectifier,the controller of Vienna rectifier is researched and *** voltage outer loop adopt the sliding mode variable structure control(SMC),in order to obtain a stable DC output voltage when Vienna rectifier is starting or is affected by the load disturbance and so *** deviation of the output voltage is selected as the sliding mode switching *** the chattering problems of the traditional index approach rate,the variable index approach law is proposed in this *** current inner loop uses model predictive control on finite set(FCS-MPC) of no modulation unit,easy to add constraints,strong anti-interference ***,the proposed control strategy is *** simulation results show that the method is correct and effective,the Vienna rectifier has strong robustness and anti-interference ability.

关键词： Vienna Rectifier sliding mode variable structure The variable Index Approach Law model Prediction Control on Finite Set

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Doubly Fed Wind Power Generation System Based on sliding mode variable structure

Doubly Fed Wind Power Generation System Based on Sliding Mod...

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作者： Weicai Xie Chaozheng Tang Fan Peng Shibo Liu Hunan Institute of Engineering Hunan Key Laboratory of Wind Turbines and Control Hunan Collaborative Innovation Center for Wind Power Equipment and Power Conversion

As one of the mainstream wind turbines, double-fed induction wind turbines(DFIG) have been the focus of research at home and abroad to improve their system performance. In this paper, a novel sliding mode variable structure direct torque control method is proposed for the model of doubly-fed wind power system based on direct torque control. It is used to decouple the power of the doubly-fed induction motor. The active power and reactive power of the doublyfed induction motor are controlled by the rotor voltage orientation method. No need to use the rotator current to control, switch control is used in the controller design. Switch control is mainly to reduce the influence of motor parameter errors on the control system, which is conducive to the robustness of the system.

关键词： Double-feed wind power system sliding mode variable structure Direct torque control Power decoupling

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sliding mode variable structure control strategy of bearingless induction motor based on inverse system decoupling

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IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING 2018年第7期13卷 1052-1059页

作者： Bu, Wenshao Zhang, Xiaofeng He, Fangzhou Henan Univ Sci & Technol Elect Engn Coll Luoyang Peoples R China Henan Univ Sci & Technol Informat Engn Coll Luoyang Peoples R China

A bearingless induction motor is a multivariable, nonlinear and strong coupling object. To achieve its dynamic decoupling control with high performance and improve the system stability, a sliding mode variable structure (SMVS) control strategy based on inverse system decoupling is proposed. First, taking the stator current as the control variable, by means of inverse system method, the bearingless induction motor system is decoupled into four pseudolinear subsystems, including motor speed subsystem, rotor flux-linkage subsystem and two radial displacement component subsystems. Then, according to the SMVS control theory, the regulator is designed for each subsystem. To overcome the chattering problem of the system, an exponential reaching law is introduced to the SMVS regulator;based on Lyapunov theory, system stability is analyzed. From the simulation experimental results, it is clear that the system has better dynamic decoupling control performance, a stronger ability to resist load disturbance and stronger robustness to the variation of motor parameters. (c) 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

关键词： bearingless induction motor inverse system decoupling sliding mode variable structure parameter variation load disturbance

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Dynamic modeling of Brake in Power-Split DHT and Pressure Tracking Control with sliding mode variable structure Method

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INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY 2019年第3期20卷 521-530页

作者： Zhao, Zhiguo Li, Mengna Wang, Chen Jiang, Lanxing Wang, Maoyao Tongji Univ Sch Automot Studies Shanghai 201804 Peoples R China Corun CHS Technol Co Ltd Syst Control Dept 2880 Wanfeng Rd Shanghai 201501 Peoples R China

Since the mode transition performance of power-split DHT (Dedicated Hybrid Transmission) are directly influenced by torque dynamic characteristic of the brake, the brake pressure should be controlled accurately. In this paper, a dynamic model of brake and its pressure regulating system are established by considering system nonlinear characteristics and input disturbances, and a sliding mode variable structure controller is developed to track the brake pressure. First, the operation principle of DHT's pressure regulating system is introduced. Second, the dynamic models of solenoid proportional pressure valve, electromagnetic direction switching valve and brake are established with AMESim parametric plant model. Furthermore, a sliding mode variable structure controller for tracking pressure is designed based on MATLAB/Simulink. Finally, the AMESim parametric plant model is validated by measurements, and the proposed controller are verified by AMESim and Simulink co-simulation. The results show that the system dynamics can be well characterized by the AMESim parametric plant model. The target pressure can be tracked rapidly and accurately by using sliding mode variable structure controller and the controller has better robustness.

关键词： Dedicated Hybrid Transmission (DHT) Hydraulic system Dynamic modeling sliding mode variable structure

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sliding mode variable structure Based Path Following Control of Agricultural Robots with Differential Drive

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IFAC-PapersOnLine 2018年第17期51卷 455-459页

作者： Xue, Jinlin Dong, Shuxian Yan, Jia College of Engineering Nanjing Agricultural University Nanjing210031 China

It is difficult to establish the precise mathematical model of agricultural wheeled robots with differential drive for path tracking control, due to characteristics of nonlinear, strong coupling and multivariable. Here, path tracking control is studied for agricultural wheeled robot with differential drive based on sliding mode variable structure. Firstly, the motion model of agricultural wheeled robots with differential drive is established and control goal is determined for path tracking. Then, sliding mode variable structure is applied to design the controller. Finally, tracking simulations were conducted with circle and sine curves to verify the controller's performance, and further real tests were carried out on a circle with a radius of 7 m at a test field. The simulations show that the robot can asymptotically stabilize the given trajectory when there is external interference, and the real tests indicate a good tracking performance with a maximum tracking of 0.21 m. The effectiveness of sliding mode controller is verified for trajectory tracking control of agricultural wheeled robots with differential drive. © 2018

关键词： Controllers Agriculture Multivariable systems Navigation Robots sliding mode control Agricultural robot Differential drive Path following sliding mode variable structure Tracking controls

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