检索结果-内蒙古大学图书馆

第28届中国控制与决策会议

作者： Yunong Zhang Maotai Zou Huinan Xiao Jianfeng Wen Ying Wang School of Information Science and Technology Sun Yat-sen University(SYSU) SYSU-CMU Shunde International Joint Research Institute Key Laboratory of Autonomous Systems and Networked Control Ministry of Education Department of Computer Science Guangdong Polytechnic Normal University

ISBN: (纸本)9781467397155

In this paper,a novel task-level cooperative-manipulation scheme is proposed for the simultaneous repetitive motion planning(SRMP) of two-manipulator robotic ***,to remedy the two-manipulators' jointangle drift phenomenon,a Routh-Hurwitz type performance index is designed and exploited for the first *** Routh-Hurwitz type subschemes are thus generated for the left and right robot manipulators ***,the two subschemes are unified as one *** analysis based on Routh-Hurwitz criterion is presented to show the feasibility and effectiveness of the proposed performance ***,the unified scheme is reformulated as a quadratic program(QP) to be solved in real ***,computer simulations based on two-manipulator robotic systems substantiate the effectiveness and accuracy of the proposed cooperative-manipulation scheme for SRMP.

关键词： Simultaneous Repetitive Motion Planning Two-Manipulator Robotic system Performance Indices Routh-Hurwitz Criterion Quadratic Program

来源：评论

学校读者我要写书评

暂无评论

The design of transformer on-line monitoring system based on DSP 2nd

The design of transformer on-line monitoring system based on...

引用

2nd International Conference on Energy Science and Applied Technology, ESAT 2015

作者： Ding, Tengfei Yin, Chunyuan Cao, Yunxia Shenyang Institute of Automation Chinese Academy of Sciences Shenyang China University of Chinese Academy of Sciences Beijing China Key Laboratory of Networked Control System CAS Shenyang China Shenyang Institute of Automation Chinese Academy of Sciences Shenyang China Key Laboratory of Networked Control System CAS Shenyang China

ISBN: (纸本)9781138028333

The security of the power transformer operation directly affects the whole power system. Thus, this paper aims to design the system for "real-time" monitoring the parameters of the transformer based on the TMS320F28335 DSP designed by TI Company. First, the system makes use of different sensors’ signal acquisition. Then, the inconsistent analog signal can be converted into the standard signal for AD conversion through the analog signal photoelectric isolation amplifier. Finally, the DSP will process them, and the processed data will be transferred to the host computer for storage and display. The test results show that the system can monitor the equipment running status accurately, stably and timely. © 2016 Taylor & Francis Group, London.

关键词： Power transformers

来源：评论

学校读者我要写书评

暂无评论

Detection of maize kernels breakage rate based on K-means clustering

引用

AIP Conference Proceedings 2017年第1期1834卷

作者： Liang Yang Zhuo Wang Lei Gao Xiaoping Bai 1Key Laboratory of Networked Control System Chinese Academy of Sciences Shenyang 110016 China 2Shenyang Institute of Automation Chinese Academy of Sciences Shenyang 110016 China 3University of Chinese Academy of Sciences Beijing 100049 China

In order to optimize the recognition accuracy of maize kernels breakage detection and improve the detection efficiency of maize kernels breakage, this paper using computer vision technology and detecting of the maize kernels breakage based on K-means clustering algorithm. First, the collected RGB images are converted into Lab images, then the original images clarity evaluation are evaluated by the energy function of Sobel 8 gradient. Finally, the detection of maize kernels breakage using different pixel acquisition equipments and different shooting angles. In this paper, the broken maize kernels are identified by the color difference between integrity kernels and broken kernels. The original images clarity evaluation and different shooting angles are taken to verify that the clarity and shooting angles of the images have a direct influence on the feature extraction. The results show that K-means clustering algorithm can distinguish the broken maize kernels effectively.

关键词：

来源：评论

学校读者我要写书评

暂无评论

PID parameters optimization research for hydro turbine governor by an improved fuzzy particle swarm optimization algorithm

引用

Open Electrical and Electronic Engineering Journal 2016年 10卷 101-117页

作者： Chen, Gonggui Yangwei, Du Yanyan, Guo Shanwai, Huang Lilan, Liu Key Laboratory of Industrial Wireless Network and Networked Control of Ministry of Education Chongqing University of Posts and Telecommunications Chongqing400065 China Research Center on Complex Power System Analysis and Control Chongqing University of Posts and Telecommunications Chongqing400065 China The Department of Locomotive and Vehicle Engineering Wuhan Railway Vocational College of Technology Wuhan430205 China

Parameter optimization of water turbine regulating system (WTRS) is decisive in providing support for the power quality and stability analysis of power system. In this paper, an improved fuzzy particle swarm optimization (IFPSO) algorithm is proposed and used to solve the optimization problem for WTRS under frequency and load disturbances conditions. The novel algorithm which is based on the standard particle swarm optimization (PSO) algorithm can speed up the convergence speed and improve convergence precision with combination of the fuzzy control thought and the crossover thought in genetic algorithm (GA). The fuzzy control is employed to get better dynamics of balance between global and local search capabilities, and the crossover operator is introduced to enhance the diversity of particles. Two different types of WTRS systems are built and analyzed in the simulation experiments. Furthermore, the sum of regulating time and another number that is the integral of sum for absolute value of system error and the squared governor output signal is considered as the fitness function of this algorithm. The simulation experiments for parameter optimization problem of WTRS system are carried out to confirm the validity and superiority of the proposed IFPSO, as compared to standard PSO, Ziegler Nichols (ZN) algorithm and fuzzy PID algorithm in terms of parameter optimization accuracy and convergence speed. The simulation results reveal that IFPSO significantly improves the dynamic performance of system under all of the running conditions. © Gonggui et al.

关键词： Fuzzy control

来源：评论

学校读者我要写书评

暂无评论

Anti-windup-based dynamic output feedback stabilization for a class of nonlinear systems with actuator saturation 34

Anti-windup-based dynamic output feedback stabilization for ...

引用

第三十四届中国控制会议

作者： WANG Naizhou PEI Hailong TANG Yong Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes School of Mechanical and Automotive Engineering South China University of Technology Key Laboratory of Autonomous Systems and Networked Control Ministry of Education South China University of Technology

ISBN: (纸本)9789881563897

This paper focuses on the anti-windup-based dynamic controller synthesis problem for a certain class of nonlinear systems subject to actuator saturation. Based on the Linear-Fractional Representation(LFR) techniques, the original system is transformed into a linear system incorporating a sector-bounded nonlinearity and a saturation nonlinearity with an additional linear-fractional constraint. By using a quadratic Lyapunov function and with a modified sector condition describing the saturation nonlinearity, LMI-based conditions for the synthesis of an anti-windup-based dynamic controller are presented aiming at enlarging the estimated region of attraction(ROA) of the closed-loop systems. A numerical example illustrates the effectiveness of the proposed approaches.

关键词： Anti-windup,nonlinear system,region of attraction,linear matrix inequality(LMI)

来源：评论

学校读者我要写书评

暂无评论

What Is 1/0 in the General Sense of Physics, Applied Computation, and/or Electronics? 34

What Is 1/0 in the General Sense of Physics, Applied Computa...

引用

第三十四届中国控制会议

作者： ZHANG Yunong QIU Binbin LING Yingbiao YANG Zhi PENG Chen School of Information Science and Technology Sun Yat-sen University(SYSU) SYSU-CMU Shunde International Joint Research Institute Key Laboratory of Autonomous Systems and Networked Control Ministry of Education

ISBN: (纸本)9781467374439

For twelve centuries, the division-by-zero singularity has been deemed as a notorious problem. Here, using the ideas from dynamics theory, and viewing everything as the result of change in the form of dynamical system(i.e., a temporal evolution perspective), we show that division by zero can be well understood by studying from a neat gradient-based dynamical *** addition to providing a new perspective towards the division operation, we introduce a framework in which a concept of generalized division is described, enclosing the singularity-conquering division as a special case, and bringing new possibilities to various fields in industry, such as control applications.

关键词： Singularity,Dynamical system,Division-by-Zero Problem,Generalized Division,control Applications

来源：评论

学校读者我要写书评

暂无评论

Synchronization of two chaotic systems with three or two inputs via ZG method 34

Synchronization of two chaotic systems with three or two inp...

引用

34th Chinese control Conference, CCC 2015

作者： Yunong, Zhang Ming, Liu Long, Jin Yinyan, Zhang Hongzhou, Tan Guangzhou China SYSU-CMU Shunde International Joint Research Institute Foshan China Key Laboratory of Autonomous Systems and Networked Control Ministry of Education Guangzhou China

ISBN: (纸本)9789881563897

Recently, the synchronization of two chaotic systems is attracting more and more attentions because of its potential applications in communication security, aerospace industry and many other fields. In this paper, by combining Zhang dynamics (ZD) and gradient dynamics (GD), a novel effective controller-design method termed Zhang-gradient (ZG) method is firstly developed for the chaos synchronization problem with multiple inputs (i.e., three or two inputs). Via this ZG method, the traditional three-input chaos synchronization problem can be successfully solved with desirable convergence rate and satisfactory accuracy. In addition, by taking advantage of the coupling property of the chaotic system, a creative extension of the ZG method is investigated to solve the thorny two-input chaos synchronization problem. Simulation verifications further demonstrate that the controllers based on the ZG method can not only achieve satisfactory synchronization accuracy and exponential convergence rate on the three-input chaos synchronization problem but also successfully solve the chaos synchronization problem with only two inputs. © 2015 Technical Committee on control Theory, Chinese Association of Automation.

关键词： Chaos Synchronization Chen Chaotic system Lü Chaotic system ZG (Zhang-Gradient) Method

来源：评论

学校读者我要写书评

暂无评论

Active disturbance rejection-based sliding mode control for a surface vessel 34

Active disturbance rejection-based sliding mode control for ...

引用

34th Chinese control Conference, CCC 2015

作者： Wei, Yuli Sun, Tairen Liu, Guohai School of Electrical Information and Engineering Jiangsu University Zhenjiang China Key Laboratory of Autonomous Systems and Networked Control Ministry of Education South China University of Technology Guangzhou China

ISBN: (纸本)9789881563897

Active disturbance rejection-based sliding mode control is proposed for the surface vessel with exogeneous disturbances to track desired trajectory robustly. A sliding surface based extended state observer is presented to estimate the lumped disturbances and compensate them in a feedforward form. To enhance the disturbances estimation speed and accuracy, a composite adaptive extended state observer, which is adjusted by tracking error and sliding surface estimation error, is proposed to estimate disturbances. The composite adaptive estimation based tracking control is constructed in feedforward-feedback composite control strategy. The effectiveness of the designed controllers is illustrated by theoretical analysis and simulations results. © 2015 Technical Committee on control Theory, Chinese Association of Automation.

关键词： Active disturbance rejection control Extended state observer Sliding mode control Surface vessel Trajectory tracking

来源：评论

学校读者我要写书评

暂无评论

Study on the Rudder control Law of Bank-to-turn Cruise Missile

Study on the Rudder Control Law of Bank-to-turn Cruise Missi...

引用

The Society of Instrument and control Engineers Annual Conference 2015

作者： XU Zhaoqing Pei Hailong College of Automation Science and Engineering Ministerial Key Laboratory of Autonomous System and Networked Control South China University of Technology

The rudder control law of certain bank-to-turn cruise missile is studied in this paper. The yaw and roll aerodynamic force caused by grid rudder is analyzed, the aerodynamic force and aerodynamic moment with motion equations are linearized based on the small perturbation linear theory. The beginning state of the cruise is chose as the feature point, the values of dynamical coefficient are calculated, then the lateral perturbation equations are *** transfer functions of each attitude angle under the rudder deflection are obtained through solving the perturbation equations, and then the dynamic step responses of the grid rudder’s are obtained. The lateral rudder control law which can satisfy zero sideslip condition is derived through the dynamic responses, according this control law the missile can achieve bank-to-turn.

关键词： cruise missile bank-to-turn rudder control law

来源：评论

学校读者我要写书评

暂无评论

Sigmoid function aided Zhang dynamics control for output tracking of time-varying linear system with bounded input

Sigmoid function aided Zhang dynamics control for output tra...

引用

Chinese control Conference (CCC)

作者： Yunong Zhang Deyang Zhang Bibbin Qiu Jinjin Wang Jian Li School of Information Science and Technology Sun Yat-sen University (SYSU) Guangzhou P. R. China Ministry of Education Key Laboratory of Autonomous Systems and Networked Control Guangzhou P. R. China SYSU-CMU Shunde International Joint Research Institute Foshan P. R. China

This paper investigates the output-tracking control of time-varying linear (TVL) system. Note that the input is always limited in a range due to actuator physical constraints or energy-saving purposes. By combining the Zhang dynamics (ZD) and the sigmoid function, an effective controller, termed sigmoid function aided ZD (SFAZD) controller, is designed for tracking the TVL system. Simulative verifications substantiate that the proposed SFAZD controller can achieve accurate tracking results, and limit the input in the range during the tracking process.

关键词： Time-varying systems Trajectory Actuators Limiting Neural networks Linear systems

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：