检索结果-内蒙古大学图书馆

第36届中国控制会议

作者： Hui Peng JunZheng Wang Wei Shen JiangBo Zhao RenJian Hao School of Automation Beijing Institute of Technology Key laboratory of intelligent control and decision of complex system

ISBN: (纸本)9781538629185

The position tracking control problem of electrical cylinder in the presence of nonlinear friction load, inertia load and nonlinear disturbance due to its transmission process is addressed in this paper. To compensate all of these disturbances in the case of servo motion, active disturbance rejection control is used to make a continuous and precise transition. Tracking differentiator is used for arranging the transition process to avoid overshoot. Extended state observer is built to estimate the unmeasurable internal disturbance, parametric uncertainties and external uncertainty for a guaranteed robust performance. Nonlinear state error feedback is designed to combine the error feedbacks more reasonable. Simulation and experimental results show that active disturbance rejection controller shows very strong robustness and adaptability compared with traditional PID control algorithm.

关键词： Electrical cylinder Nonlinear disturbance Position tracking control Active disturbance rejection control

来源：评论

学校读者我要写书评

暂无评论

Synchronization stability and circuit experiment of hyperchaos with time delay using impulse control

arXiv

引用

arXiv 2019年

作者： Ren, Hai-Peng Tian, Kun Bai, Chao Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing Xian University of Technology Xian710048 China School of Mechatronics Engineering Xi’an Technological University Xian710048 China

Secure communication using hyperchaos has a better potential performance, but hyperchaotic impulse circuits synchronization is a challenging task. In this paper, an impulse control method is proposed for the synchronization of two hyperchaotic Chen circuits. The sufficient conditions for the synchronization of hyperchaotic systems using the impulse control are given. The upper bound of the impulse interval is derived to assure the synchronization error system to be asymptotically stable. Simulation and circuit experiment show the correctness of the analysis and feasibility of the proposed method. Copyright © 2019, The Authors. All rights reserved.

关键词： Synchronization

来源：评论

学校读者我要写书评

暂无评论

Blockchain-based Social Manufacturing for Customization Production

引用

IFAC-PapersOnLine 2020年第5期53卷 53-58页

作者： Xiuqin Shang Xi Chen Lulu Niu Gang Xiong Zhen Shen Xisong Dong Zhengchao Shen Chao Liu Bangwen Xi the Research Center of Precision Sensing and Control the state key laboratory for management and control of complex systems & Beijing engineering research center of intelligent systems and technology institute of automation Chinese Academy of Sciences Beijing 100190 China Beijing University of Posts and Telecommunications Beijing 100876 China Alstom Beizhong Power (Beijing) Co. Ltd. Beijing 100040 China the System Integration Electronics (Hangzhou)Co. LTD No. 58 No. 11 Road Foxconn Qiantang Tech-Industrial Area HETZ Hangzhou 310018 China

This paper proposes the social manufacturing based on Blockchain, which realizes precise and efficient customization through smart contract and distributed accounting. It is a new manufacturing mode of service-oriented, distributed and collaborative customization. This paper proposes the definition of SM based on Blockchain. In the process of using to Blockchain, it can form a strong trust relationship, so that multiple nodes / roles in SM can save the complete copy of the whole database, rather than a centralized permission / role. Secondly, the Blockchain-based SM system is developed for customized manufacturing. Finally, its application case and the optimization results are given. In SM, it is the key that how to transform customized manufacturing actions into socialized actions of manufacturing resources through internet communities and interconnect Socialized Manufacturing Resources (SMRs) in upstream and downstream. In this paper, the smart contract relationship is established based on Blockchain between SMRs to build credit mechanism in SM, Which can ensure the effective circulation and association of SMRs.

关键词： Social Manufacturing Blockchain Optimization SM Resources

来源：评论

学校读者我要写书评

暂无评论

On Event-triggered Adaptive Robust control 36

On Event-triggered Adaptive Robust Control

引用

第36届中国控制会议

作者： Yuan Huang Junzheng Wang Dawei Shi State Key Laboratory of Intelligent Control and Decision of Complex Systems

ISBN: (纸本)9781538629185

In this work,an event-triggered adaptive robust controller（ET-ARC） design is considered for a continuous-time nonlinear system combined with structural uncertainties and parameter *** the event-trigger scheme,the controller only can obtain the sampled date of the output measurement at some certain instants determined by the designed triggering condition and therefore the performance of the ET-ARC depends on the triggering condition ***,in this work,for the adaptive robust control scheme,an event-triggered transmission strategy is proposed,which relies on the output measurement of the nonlinear ***,based on this strategy,the design idea of the adaptive robust controller is presented such that the tracking performance is ***,based on a more general assumption,we provide a possible formation of control signal which satisfies the requirement proposed.

关键词： Adaptive robust control event-triggered transmission parameter estimation

来源：评论

学校读者我要写书评

暂无评论

Stability analysis of nonlinear switched systems with sampled-data inputs

Stability analysis of nonlinear switched systems with sample...

引用

Chinese control Conference (CCC)

作者： Zhichuang Wang Jian Sun Guoliang Chen Key Laboratory of Intelligent Control and Decision of Complex System Beijing Institute of Technology Beijing P.R. China

This paper addresses the uniform global asymptotical stability (UGAS) problem for a class of nonlinear switched systems with sampled-data inputs. By employing the multiple Lyapunov functions (MLFs) and input delay method, some new stability conditions are explicitly established for nonlinear switched systems with sampled-data controls. Besides, the sufficient conditions are derived in terms of an upper bound on the dwell time and the maximal sampling interval. Finally, some numerical examples illustrate the advantages of the proposed results.

关键词： Switched systems Switches Stability analysis Delays Lyapunov methods Asymptotic stability

来源：评论

学校读者我要写书评

暂无评论

A Novel Robust Perfect Tracking control Method for Nonlinear Servo systems

A Novel Robust Perfect Tracking Control Method for Nonlinear...

引用

第37届中国控制会议

作者： Jia-Rong Li Ming-Gang Gan Beijing Institute of Technology Key Laboratory of Complex System Intelligent Control and Decision (Beijing Institute of Technology) Ministry of Education

In this paper, we extend perfect tracking control to nonlinear systems, and propose a novel robust perfect tracking control（RPTC） strategy for nonlinear servo tracking systems. The overall control system consists of four parts: a model-based friction compensator, a feedforward perfect tracking controller, an improved internal model controller as the feedback controller,and a disturbance observer for position feedback. First, the friction compensator is introduced to compensate the nonlinear dynamic friction, and the feedforward perfect tracking controller is applied to widen the frequency band. Then, the internal model controller with a differentiator is adopted to yield improved tracking accuracy. Moreover, by utilizing the disturbance observer, the robustness against external disturbances and plant uncertainties is ensured. Finally, high accuracy tracking and ideal robustness are achieved by the RPTC scheme. The stability of the closed loop system is analyzed. Simulation results demonstrate that the proposed RPTC strategy significantly improves the tracking accuracy and enhances the robustness.

关键词： Perfect Tracking control Nonlinear Servo systems Friction Compensation Disturbance Observer Internal Model control

来源：评论

学校读者我要写书评

暂无评论

Stabilization of systems Under Stochastic Clock Offsets

Stabilization of Systems Under Stochastic Clock Offsets

引用

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

作者： Haoyuan Sun Jie Chen Jian Sun Key Laboratory of Intelligent Control and Decision of Complex System Beijing Institute of Technology Beijing P.R. China

ISBN: (纸本)9781538670897;9781538670880

This paper is concerned with the stabilization of networked control systems under clock offsets between sensors and controllers where the clock offsets are assumed to be stochastic variables following a certain probability distribution. A linear time-invariant controller is designed to deal with the effects of the stochastic offsets between sensors and controllers clocks, which can guarantee the stochastic stability of the linear systems. Finally, the validity of our results is illustrated using a numerical simulation.

关键词： Clocks Stability analysis Linear matrix inequalities Sensor systems Stochastic processes Linear systems

来源：评论

学校读者我要写书评

暂无评论

A New Stability Criterion of Networked Switched control systems with Unknown Time-Varying Delays

A New Stability Criterion of Networked Switched Control Syst...

引用

Chinese control Conference (CCC)

作者： Guoliang Chen Jian Sun Zhichuang Wang Key Laboratory of Intelligent Control and Decision of Complex System Beijing Institute of Technology Beijing P.R. China

In this article, the stability of networked switched control systems (NSCSs) with unknown time-varying delays is analyzed. By Taylor series expansion and h-order approximation techniques, NSCSs with unknown time-varying delays is modeled to discrete-time switched polytopic uncertain systems, a new stability criterion is proposed for NSCSs based on a necessary and sufficient nonconservative linear matrix inequalities (LMIs) condition for discrete-time switched polytopic uncertain systems. Finally, a numerical example is presented to show the effectiveness of the proposed method.

关键词： Switches Delays Stability criteria Lyapunov methods Numerical stability Thermal stability

来源：评论

学校读者我要写书评

暂无评论

Artificial Neural Network Based Maximum Power Point Tracking for PV system

Artificial Neural Network Based Maximum Power Point Tracking...

引用

第三十八届中国控制会议

作者： Al-wesabi Ibrahim Min Ding Xiaoling Jin Xianzhong Dai Mohammad Abu Sarhan Muhammed Badeaa Shafik Hao Zhou School of Automation China University of Geoscience Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex System State Grid Energy Research Institute School of electrical engineering and automation Wuhan university

Nowadays PV systems is suffering from two main problems: high production cost and low efficiency especially under variable weather conditions. Therefore, to reduce such associated problems, PV systems are being connected with various optimization controllers such as maximum power point tracking. In this paper, an artificial neural network maximum power point method has been designed to be linked between a PV system and DC-DC buck converter, and each part of the system is fully explained. The whole system was modeled under MATLAB/Simulink environment, simulation results demonstrated the efficiency of the proposed method. The proposed method has been examined to track the maximum power point under different weather conditions which shows a rapid and accurate tracking of the maximum power point(MPP) of PV system. The whole system which consists of PV arrays, Buck converter, ANN tracker, and load has been modeled using MATLAB/Simulink environment. This Simulink model has been examined using different levels of temperature and irradiation and the output results of both P-V and I-V characteristics, output power, and the system efficiency clearly demonstrate the validation of the modeled system. This demonstration has been done by comparing between the result of experimental platform and the results of simulated model which approves that ANN is highly recommended to be used in the field of maximum power point tracking of PV system.

关键词： Artificial neural network(ANN) Photovoltaic(PV) Maximum power point tracking(MPPT) Buck converter

来源：评论

学校读者我要写书评

暂无评论

Artificial intelligence enhances the performance of chaos-based wireless communication

arXiv

引用

arXiv 2019年

作者： Ren, Hai-Peng Zhao, Hong-Er Bai, Chao Yin, Hui-Ping Grebogi, Celso Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing Xian University of Technology Xian710048 China Institute for Complex Systems and Mathematical Biology University of Aberdeen AB24 3UE United Kingdom

Some new findings for chaos-based wireless communication systems have been identified recently. First, chaos has proven to be the optimal communication waveform because chaotic signals can achieve the maximum signal to noise ratio at receiver with the simplest matched filter. Second, the information transmitted in chaotic signals is not modified by the multipath wireless channel. Third, chaos properties can be used to relief inter-symbol interference (ISI) caused by multipath propagation. Although recent work has reported the method of obtaining the optimal threshold to eliminate the ISI in chaos-based wireless communication, its practical implementation is still a challenge. By knowing the channel parameters and all symbols, especially the future symbol to be transmitted in advance, it is almost an impossible task in the practical communication systems. Owning to Artificial intelligence (AI) recent developments, Convolutional Neural Network (CNN) with deep learning structure is being proposed to predict future symbols based on the received signal, so as to further reduce ISI and obtain better bit error rate (BER) performance as compared to that used the existing sub-optimal threshold. The feature of the method involves predicting the future symbol and obtaining a better threshold suitable for time variant channel. Numerical simulation and experimental results validate our theory and the superiority of the proposed method. Copyright © 2019, The Authors. All rights reserved.

关键词： Signal to noise ratio

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：