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4th IEEE Conference on Industrial Electronics and Applications

作者： Cui Jiefan Fu Yue Yang Xia Shenyang Univ Technol Sch Elect Engn Shenyang 110178 Peoples R China Shenyang Univ Technol Engn Training Ctr Shenyang 110178 Peoples R China

ISBN: (纸本)9781424427994

Traditional direct torque control causes torque ripple naturally because of its basic Bang-bang control principle. The sliding mode variable structure control with fuzzy logic is presented in the paper. Mathematics model of permanent magnet synchronous motor in primary frame had been described. sliding mode variable structure is used to design a reasonable sliding surface for minimum control errors. And fuzzy logic is applied to solve sliding mode wobbling problem. The method of fuzzy sliding mode variable structure control can reduce torque ripple greatly. Analysis results have been curved, which shown the control system still remains fast response and control robustness. The system control performances with the method have been improved obviously.

关键词： direct torque control fuzzy logic sliding mode variable structure control permanent magnet synchronous motor

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Differential Steering control of Four-Wheel Independent-Drive Electric Vehicles

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ENERGIES 2018年第11期11卷 2892-2892页

作者： Tian, Jie Tong, Jun Luo, Shi Nanjing Forestry Univ Coll Automobile & Traff Engn Nanjing 210037 Jiangsu Peoples R China Jiangsu Univ Coll Automobile & Traff Engn Zhenjiang 212013 Peoples R China

This paper investigates the skid steering of four-wheel independent-drive (4WID) electric vehicles (EV) and a differential steering of a 4WID EV with a steer-by-wire (SBW) system in case of steering failure. The dynamic models of skid steering vehicle (SSV) and differential steering vehicle (DSV) are established and the traditional front-wheel steering vehicle with neutral steering characteristics is selected as the reference model. On this basis, sideslip angle observer and two different sliding mode variable structure controllers for SSV and DSV are designed respectively. Co-simulation results of CarSim and Simulink show that the designed controller for DSV not only controls the yaw rate and sideslip angle of DSV to track those of the reference model exactly, but also ensures the robustness of the controlled system compared with the designed controller for SSV. And the differential driving torque needed to realize the differential steering is much smaller than that for skid steering, which indicates the possibility of the differential steering in case of steering failure.

关键词： four-wheel independent-drive electric vehicle skid steering differential steering sliding mode variable structure control robustness

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A robust voltage control of dual active full bridge converter based on RBF neural network sliding mode control with reduced order modeling approach

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FRONTIERS IN ENERGY RESEARCH 2023年 11卷

作者： Wang, Xiaosong Wang, Dazhi Sun, Guofeng Ni, Yongliang Song, Keling Li, Yanming Northeastern Univ Sch Informat Sci & Engn Shenyang Peoples R China State Grid Shandong Elect Power Co Yantai Peoples R China China North Vehicle Res Inst Beijing Peoples R China

This paper presents a control method of dual active full bridge (DAB) DC/DC converter based on neural network sliding mode control under the reduced order modeling method, which is used to enhance the output voltage regulation and improve the system robustness. sliding mode control (SMC) is famous for its robustness and improving the dynamic performance of nonlinear systems. However, it includes drawbacks such as complex modeling, chattering, and decreased tracking performance. Therefore, through the method of reduced order modeling, the Radial Basis Function neural network algorithm is selected to modify and design the traditional sliding mode variable structure controller, completing the design of neural network approximation terms and adaptive laws. The proposed reduced order modeling and RBF(Radial Basis Function Neural Network)-SMC scheme simplifies the dual active full bridge modeling process, completes the parameter approximation of the sliding mode controller, and eliminates the chattering problem. Firstly, through simulation and comparative analysis of commonly used modeling methods for dual active full bridge, a reduced order modeling method was adopted to simplify the design process. Then, by ingeniously designing the sliding mode surface and Radial Basis Function control law, and using neural network to modify the sliding mode control technology, the chattering problem, load disturbance and voltage fluctuation influence of the sliding mode controller are improved. The stability of the control method is proved by Lyapunov stability theory. Finally, the proposed RBF-SMC method is compared with PI linear control and classical sliding mode control methods through simulation and experiments to verify the effectiveness of the proposed control method.

关键词： dual active full bridge converter reduced order mode sliding mode variable structure control RBF neural network dynamic response

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Single Neuron PID sliding mode Parallel Compound control for Alternating Current Servo System

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Procedia Engineering 2012年 29卷 2055-2061页

作者： Ying Zhang Peng Li Wen-jiang Wu Department of physics and information engineering Jining University Qufu 273155 China Shenyang Institute of Computing Technology Chinese Academy of Sciences Shenyang 110171 China

Considering changes, strong interference of load torque and moment of inertia for alternating current position servo system, a single neuron PID and sliding mode parallel compound control strategy is proposed. The parallel architecture that consists of a sliding mode variable structure controller of the position loop and the single neuron PID controller is designed. sliding mode control inhibits the parameter perturbations and load disturbance, single neuron PID control realizes the online adjustments of the proportional, integral, differential parameters of traditional PID controller. The simulation results show that the designed parallel compound controller can guarantee static and dynamic system performance.

关键词： Single neuron PID control sliding mode variable structure control Alternating current servo system Compound control Parallel architecture

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The sliding mode control about ASR of Vehicle with Four Independently Driven In-Wheel Motors Based on the Exponent Approach Law

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Energy Procedia 2016年 88卷 827-832页

作者： Zhifu Wang Yang Zhou Guangzhao Lee Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081 China United Automotive Electronic Systems Co. Ltd.555 Rongqiao Street Pudong New Area Shanghai 201206 China

Acceleration slip regulation control system is a new active safety technology. In this paper, through the research of the four-wheel independent drive electric vehicle, a sliding mode variable structure control algorithm based on exponent approach law is proposed, which is applied to the ASR system. This paper establishes a seven DOFs vehicle dynamics model, tests whether the ASR control strategy is efficient on the poor condition road. The simulation results show that the vehicle acceleration performance improvement rate increases by 43.5% and 58.5% with the control strategy. During the two simulation processes, the results indicate that the sliding mode variable structure control algorithm applied to ASR system has a good adaptation to good and slippery roads. The algorithm can greatly improve the four-wheel independent drive electric vehicle's acceleration performance.

关键词： ASR sliding mode variable structure control exponent approach law

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Adaptive Fuzzy Switching control Based on sliding mode for Hydraulic Servo System of Rolling Mill

Adaptive Fuzzy Switching Control Based on Sliding Mode for H...

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31st Chinese control Conference

作者： Miao Qing Fang Yi-ming Shao Peng-zeng Deng Fei Yanshan Univ Coll Elect Engn Key Lab Ind Comp Control Engn Hebei Prov Qinhuangdao 066004 Peoples R China Natl Engn Res Ctr Equipment & Technol Cold Strip Qinhuangdao 066004 Peoples R China

ISBN: (纸本)9789881563811

In view of the nonlinearity and parameter jump caused by the conversion of structure in rolling mill hydraulic servo system, a direct adaptive fuzzy controller based on sliding mode control is designed. Firstly, sliding mode function and control law are designed. Secondly, the direct adaptive fuzzy controller is constructed to approximate the total unknown terms in the control law, and the stability of the system is analyzed and proved through the Lyapunov function, we obtained the system is asymptotically stable. In addition, in this paper the optimal performance index is considered as the rule of switching control which can implement the effective switching among sub-models controller. Finally, the simulation results demonstrate that the designed controller can not only reduce the high frequency chattering effectively but also have good robustness for the system uncertainty and parameter perturbation.

关键词： Hydraulic servo system of rolling mill Direct adaptive fuzzy sliding mode variable structure control Multi-model switching

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A survey on control approaches for position servo system with backlash

A survey on control approaches for position servo system wit...

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第26届中国过程控制会议（CPCC2015）

作者： Chao Peng Chongwei Han Jianxiao Zou Guanghui Zhang Zhong Li Northwest Institute of Mechanical & Electrical Engineering School of Automation Engineering University of Electronic Science and Technology of China

Backlash is the most common non-linear characteristics in position servo system with gear, which seriously affects the control performance of servo system. The control approach of position servo system with backlash has long been the focus and difficulty in servo control technology research. In this paper, the control approaches using in position servo system with backlash are summarized and analyzed. At first, the structure and control mode of position servo system with backlash are introduced. And then, the current control approaches using in this system are summarized, they are classified into PID control, feedforward control based on model, disturbance compensation control, state and parameter estimation based control and switching control. The principles and characteristics of above control approaches are analyzed. Finally, the problems faced by research on control of position servo system with backlash and its development are discussed.

关键词： Position servo system Backlash nonlinearity model predictive control sliding mode variable structure control Switching control

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Study on Multi-path Planning and Tracking control of the UCAV Based on Evolutionary Algorithm

Study on Multi-path Planning and Tracking Control of the UCA...

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International Conference on control, Automation and Systems

作者： Hanqiao Huang Huan Zhou Yawei Cai Aeronautics and Astronautics Engineering College Air Force Engineering University

ISBN: (纸本)9781479999767

Aiming at studying the multi-path planning and tracking control of the unmanned combat aerial vehicle (UCAV) in multi-constraints condition. In this paper, the mathematic model of the UCAV is built, then, the chromosome representation of path nodes and fitness function are proposed based on evolutionary algorithm. According to different operational requirements, the multi-path planning algorithm is put forward. Secondly, the paths are smoothened to get the attitude solved. Finally, the tracking of the trajectory attitude and velocity are realized with dynamics model of the UCAV by sliding mode variable structure control method. Simulation results demonstrate that the multi-path planned under the dynamic operational environment can meet different requirements, and the tracking controller has good accuracy and robustness.

关键词： Unmanned combat aerial vehicle (UCAV) Multiple path planning Evolutionary algorithm sliding mode variable structure control

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First Order Dynamic sliding mode control for Wheeled Mobile Robots

First Order Dynamic Sliding Mode Control for Wheeled Mobile ...

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2010 International Conference on Nuclear Energy and Engineering Technology (NEET 2010)

作者： Da Lingrong 723 Institute China Shipbuilding Industry Corporation Yangzhou, Jiangsu Province, China Tian Zhixiang College of Mechanical Engineering Nanjing University of Aeronautics and Astronautics Nanjing, Jiangsu Province, China

Based on the sliding mode variable structure control theory, a first order dynamic sliding mode control algorithm is proposed for a nonholonomic wheeled mobile robot system. In this paper, a new switching function which related to the derivative of the control input is designed by modified conventional sliding mode control switching function using differential block, and the dynamic sliding mode control algorithm transfers the discontinuous input terms into the derivative terms that can reduce the chattering of the system. The Lyapunov function and the exponential approximation law using saturation function instead of sign function which also can reduce the chattering are used and combined with the first order dynamic sliding mode control algorithm the control law of the wheeled mobile robot is derived. Finally, the control law is designed and simulated by the proposed algorithm for the wheeled mobile robot, and the simulation results show that the first order dynamic sliding mode control algorithm can make the system convergence fast and also can reduce the chattering of the system that caused by the characteristic of the sliding mode control.

关键词： sliding mode variable structure control dynamic sliding mode control nonholonomic wheeled mobile robot

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First Order Dynamic sliding mode control for Wheeled Mobile Robots

First Order Dynamic Sliding Mode Control for Wheeled Mobile ...

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The 2011 International Conference on Computing,Information and control(ICCIC 2011)

作者： Da Lingrong Tian Zhixiang 723 Institute China Shipbuilding Industry Corporation College of Mechanical Engineering Nanjing University of Aeronautics and Astronautics

关键词： sliding mode variable structure control dynamic sliding mode control nonholonomic wheeled mobile robot

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