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An improved particle swarm optimization algorithm for chaotic synchronization based on PID control

Journal of Information and Computational Science 2014年第9期11卷 3177-3186页

作者： Zou, Dexuan Wang, Xin Duan, Na School of Electrical Engineering and Automation Jiangsu Normal University Xuzhou 221116 China Information and Control Engineering Faculty Shenyang Jianzhu University Shenyang 110168 China

In this study, we propose a variant of Particle Swarm Optimization (PSO) algorithm for chaotic synchronization based on PID control. The new method, called Improved Particle Swarm Optimization (IPSO) algorithm employs the global best position to execute a global searching strategy such that the position updating is well finished. In addition, the IPSO introduces a mutation operation in terms of the personal best positions. By combining the global searching strategy and mutation operation, the global searching capacity of the IPSO is enhanced, and it can easily get rid of the local optimums. The performance of the IPSO is investigated on four test examples and its results are compared with those of the PSO. The empirical analysis of the experimental results demonstrates the efficiency of the IPSO. Copyright © 2014 Binary Information Press.

关键词： Three term control systems

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An unconventional unmanned autonomous blimp: Design, modeling and simulation

Communications in Computer and Information Science

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Communications in Computer and Information Science 2014年 474卷 356-367页

作者： Song, Yi Mai, Jingeng Yang, Siqiang Tan, Jiaying Huang, Yan Wang, Qining Intelligent Control Laboratory College of Engineering Peking University Beijing100871 China School of Automation Science and Electrical Engineering Beihang University Beijing100191 China

ISBN: (纸本)9783662452882

In this paper, we present the design and simulation of an unconventional unmanned autonomous blimp. The dynamic model of the tri-ellipsoid blimp is built with mechanism analysis method. Based on dynamic modeling of the blimp, a PID controller against the disturbance during autonomous flight is designed. Simulation results show that the controller is valid with optimal control parameters. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Three term control systems

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A study on tracking peformance of the pneumatic system with enhanced NPID controller

A study on tracking peformance of the pneumatic system with ...

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Asian control Conference

作者： Sy Najib Sy Salim Aliza Che Amran A. A. M. Faudzi Z. H. Ismail M. F. Rahmat N. H. Sunar Shamsul Anuar Shamsudin Department of Control Instrumentation and Automation Faculty of Electrical Engineering Universiti Teknikal Malaysia Melaka Department of Control Universiti Teknikal Malaysia Melaka Department of Control and Mechatronic Engineering Universiti Teknologi Malaysia Centre for Artificial Intelligence & Robotics (CAIRO) Universiti Teknologi Malaysia Kuala Lumpur Malaysia Faculty of Mechanical Engineering Universiti Teknikal Malaysia Melaka

An investigation on the performance of enhanced Nonlinear Proportional Integral Derivative (ENPID) controller is presented in this paper. The study is focused on the potential of the controller to perform well in tracking set point of pneumatic actuator system. Two control strategies of the ENPID are considered in this paper, namely Multi-rate NPID (MN-PID) and Self-regulation NPID (SN-PID). These control strategies are tested against NPID and conventional PID controller. Also, the dead-zone compensation (DZC) is applied to the system to overcome the dead-band of the valve. Feed forward path is also included to improve the tracking performance. Two different input signals i.e. sinusoidal and S-curve waveforms are used to evaluate the performance of the techniques. To further examine the controller performance, the frequency and amplitude of the sinusoidal test signal are varied. The effectiveness of the proposed controllers is verified through simulation and experimental studies.

关键词： Pneumatic actuators Valves Mathematical model Trajectory Pistons Fuzzy logic

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A discrete-time current controller for permanent magnet synchronous motor drives

A discrete-time current controller for permanent magnet sync...

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Annual Conference of Industrial Electronics Society

作者： Türker Türker Ümit Büyükkeleş Hüseyin Meşe Faruk Bakan Dept. of Control & Automation Engineering Yildiz Technical University Istanbul Turkey Defence System Technologies ASELSAN A.S. Ankara Turkey Dept. of Electrical Engineering Yildiz Technical University Istanbul Turkey

A discrete-time current controller is presented for the current loop of the permanent magnet synchronous motor drives. Firstly, the difference equations of current errors are obtained for constant reference values. Then, a dead-beat controller is designed to drive the dq-axes currents to the desired values. Discrete-time integral action with an anti-windup scheme is added to the dead-beat structure to achieve a better steady-state behaviour. In order to improve the transient properties of the controller, a current prediction scheme based on dead-beat structure is also introduced to the controller. Finally, the proposed controller is implemented through numerical simulations to illustrate the effectiveness for both transient and steady-state responses.

关键词： Torque Pulse width modulation Delays Numerical simulation Uncertainty Current measurement Current control

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Time-varying universe based linguistic dynamic analysis of timing design for parallel traffic light

Time-varying universe based linguistic dynamic analysis of t...

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International Conference on Informative and Cybernetics for Computational Social Systems (ICCSS)

作者： Hong Mo Fei-Yue Wang Fenghua Zhu School of Electrical and Information Engineering Changsha University of Science and Technology Changsha CN State Key Lab. of Management and Control for Complex Systems Institute of Automation CN

Reasonable timing design for traffic light can induce and maintain the transportation systems in good order. How to allocate the time are the keys. In the paper, the theory of time-varying universe is used to describe the circle time, and corresponding fuzzy sets on the universe are also discussed to modeling the situation of traffic flow, then the parallel traffic management and control methods which are dynamic with the time change are presented. A simulation example are provided to analyze the linguistic dynamic evolution of timing design of traffic light when the traffic flow is change with time-varying for an intersection.

关键词： Timing Pragmatics Vehicle dynamics Fuzzy sets Complex systems Vehicles

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A high-order sliding mode stator flux observer for asynchronous motor based on feedback linearization

A high-order sliding mode stator flux observer for asynchron...

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International Conference on Fuzzy Systems and Knowledge Discovery (FSKD)

作者： Yuedou Pan Tao Chen School of Automation and Electrical Engineering University of Science and Technology Beijing Beijing China Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education) Beijing China

ISBN: (纸本)9781467376839

This paper proposes a high-order sliding mode stator flux estimation method for asynchronous motor based on feedback linearization. Selecting the rotor flux as the system's output, the coordinate change matrix and the nonlinear state feedback are derived based on the affine nonlinear model of asynchronous motors by using the nonlinear system's differential geometry theory. Then the asynchronous motor system is input-output linearized and the feedback linearization model of asynchronous motors is obtained. On this basis, a high-order sliding mode rotor flux observer for asynchronous motor is designed to estimate rotor flux, and this paper analysis the stability of the designed observer, then we can calculate stator flux by using the rotor flux. The designed observer is applied to Direct Torque control (DTC) of the asynchronous motor and achieves a good control performance. Simulation results verify the effectiveness and feasibility of the proposed method.

关键词： Stators Observers Rotors DC motors Nonlinear systems State feedback

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Bayesian dynamic linear model-based modeling method for an aniline stripping column

Bayesian dynamic linear model-based modeling method for an a...

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Asian control Conference

作者： Bingqiang Huang Yong Gu Hongye Su School of Automation and Electrical Engineering Zhejiang University of Science and Technology Hangzhou China State Key Laboratory of Industrial Control Industrial Technology Zhejiang University Hangzhou China

ISBN: (纸本)9781479978632

The step test method is a common modeling approach for industrial process and has the disadvantages of time consuming and production disruption. One of the major features of the Bayesian methodology is the ability of integrating the subjective intervention information into existing Bayesian dynamic linear model (DLM) and sometimes the subjective information is also important for a MPC controller design. This paper takes the bottom temperature control problem of an aniline stripping column as the research object, and the model calculated by the Bayesian DLM and linear fitness is adopted to design a MPC controller. Finally, the practical application result shows that the model based on the Bayesian DLM is useful and effective, and by using this modeling method, the disruptive and expensive step test may be reduced.

关键词： Bayes methods Predictive models Computational modeling Temperature control Mathematical model Data models Valves

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A DE based PID controller for two dimensional overhead crane

A DE based PID controller for two dimensional overhead crane

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第三十四届中国控制会议

作者： Zhe Sun Ning Wang Yunrui Bi Jinhui Zhao National Laboratory of Industrial Control Technology Institute of Cyber-Systems and ControlZhejiang University Key Laboratory of Measurement and Control of CSE Ministry of EducationSchool of AutomationSoutheast University College of Mechanical and Electrical Engineering China Jiliang University

ISBN: (纸本)9781467374439

In order to damp the load oscillation, a DE optimal PID controller is designed for overhead crane control *** by bee colony foraging mechanism, a neighborhood search operation is adopted for differential evolution(DE) algorithm to improve the search efficiency. This improved DE algorithm is employed to adjust PID controller parameters off-line. Through simulation and comparison under different operation conditions, the DE based PID controller exhibits the better performance in overhead crane anti-swing and position control.

关键词： PID control,DE algorithm,Parameter optimization,Overhead crane

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Metrology with PT-Symmetric Cavities: Enhanced Sensitivity near the PT-Phase Transition

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Physical Review Letters 2016年第11期117卷 110802-110802页

作者： Zhong-Peng Liu Jing Zhang Şahin Kaya Özdemir Bo Peng Hui Jing Xin-You Lü Chun-Wen Li Lan Yang Franco Nori Yu-xi Liu Department of Automation Tsinghua University Beijing 100084 China Tsinghua National Laboratory for Information Science and Technology Beijing 100084 China Department of Electrical and Systems Engineering Washington University St. Louis Missouri 63130 USA CEMS RIKEN Saitama 351-0198 Japan Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications Hunan Normal University Changsha 410081 China School of Physics Huazhong University of Science and Technology Wuhan 430074 China Physics Department The University of Michigan Ann Arbor Michigan 48109 USA Institute of Microelectronics Tsinghua University Beijing 100084 China

We propose and analyze a new approach based on parity-time (PT) symmetric microcavities with balanced gain and loss to enhance the performance of cavity-assisted metrology. We identify the conditions under which PT-symmetric microcavities allow us to improve sensitivity beyond what is achievable in loss-only systems. We discuss the application of PT-symmetric microcavities to the detection of mechanical motion, and show that the sensitivity is significantly enhanced near the transition point from unbroken- to broken-PT regimes. Our results open a new direction for PT-symmetric physical systems and it may find use in ultrahigh precision metrology and sensing.

关键词： Cavity quantum electrodynamics Optomechanics PT-symmetric quantum mechanics Quantum metrology

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A novel method of fault section locating based on prony relative entropy theory

Communications in Computer and Information Science

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Communications in Computer and Information Science 2014年 463卷 359-367页

作者： Li, Ranyue Wang, Chaoli Wang, Xiaowei Department of Control Science and Engineering University of Shanghai for Science and Technology Shanghai200093 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo454000 China

ISBN: (纸本)9783662452851

A novel fault line section locating method of non-solidly grounded system based on Prony relative entropy theory was proposed in this paper. Firstly, piecewise Prony algorithm was used to fit the transient zero-sequence current signal of each detection point in the first T/20 cycle after fault occurs;secondly, transient zero-sequence dominant components were extracted and the relative entropy values of adjacent detection points were computed;lastly, the fault section was located by use of the feature that the transient zerosequence currents from the same side of fault point possess high similarity while the opposite side of fault point possess low similarity. Simulation results verify the validity and accuracy of the method in this paper. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Entropy

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