检索结果-内蒙古大学图书馆

2024 CPSS and IEEE International Symposium on Energy Storage and Conversion, CPSS and ISESC 2024

作者： Zhou, Hangyan Xie, Ronghuan Xie, Hongbiao Zhang, Tao Yu, Xingpeng Zhang, Yiming School of Electrical Engineering and Automation Fuzhou University Fuzhou China

ISBN: (纸本)9798350380514

The technology known as dynamic wireless power transmission (DWPT) has great promise in reducing the weight and expense of automated guided vehicles (AGVs) by reducing the amount of battery capacity they carry. However, there are large mutual inductance and power fluctuation in the dynamic charging process. This paper suggests a low-cost, low-variation dual-receiver magnetic coupler that is coupled in parallel by two half-bridge rectifiers as a solution to this issue. An I-Type solenoid coil is used to strengthen the coupling and magnetic field. The optimized design of the coupler structure enables the system to have smooth mutual inductance fluctuation. According to the simulated results, the equivalent mutual inductance fluctuation is 3.6%, confirming the viability of the magnetic coupling structure's optimized design and the efficacy of the suggested DWPT system. © 2024 IEEE.

关键词： Inductive power transmission

来源：评论

学校读者我要写书评

暂无评论

Linear Programming-Based Consensus of Positive Continuous-Time Multi-Agent Systems

引用

IEEE/CAA Journal of Automatica Sinica 2024年第12期11卷 2519-2521页

作者： Junfeng Zhang Fengyu Lin Shihong Ding Wei Xing the School of Information and Communication Engineering Hainan UniversityHaikou 570228China Artificial Intelligence and Automation Huazhong University of Science and TechnologyWuhan 430000China the School of Electrical and Information Engineering Jiangsu UniversityZhenjiang 212013China

Dear Editor,This letter deals with the consensus of positive multi-agent systems(PMASs).A consensus protocol is proposed by introducing a finite consensus *** error is defined as the differences in the linear combination of the agent states,the agent states,and the finite consensus *** the consensus protocol,an error system is constructed,and it refers to the error term and the finite consensus point.A linear programming(LP)-based equation is given to remove the dependence of the finite consensus *** virtue of the property of a directed graph,an error-independent system is obtained.

关键词： agent system error

来源：评论

学校读者我要写书评

暂无评论

Optimal Day-ahead Dynamic Pricing of Grid-connected Residential Renewable Energy Resources Under Different Metering Mechanisms

引用

Journal of Modern Power Systems and Clean Energy 2023年第1期11卷 168-178页

作者： Kimia Parandeh Abed Bagheri Shahram Jadid Center of Excellence for Power System Automation and Operation School of Electrical EngineeringIran University of Science and Technology(IUST)TehranIran

Nowadays,grid-connected renewable energy resources have widespread applications in the electricity ***,providing household consumers with photovoltaic(PV)systems requires bilateral interfaces to exchange energy and *** addition,residential consumers’contribution requires guaranteed privacy and secured data *** dynamic pricing is one of the incentive-based demand response methods that has substantial effects on the integration of renewable energy resources with smart grids and social *** metering mechanisms of renewable energy resources such as feed-in tariffs,net metering,and net purchase and sale are important issues in power grid operation *** this paper,optimal condition decomposition method is used for dayahead dynamic pricing of grid-connected residential renewable energy resources under different metering mechanisms:feed-intariffs,net metering,and net purchase and sale in conjunction with carbon emission *** to the stochastic nature of consumers’load and PV system products,uncertainties are considered in a two-stage decision-making *** results demonstrate that the net metering with the satisfaction average of 68%for consumers and 32%for the investigated electric company leads to 28%total load *** the case of net purchase and sale mechanism,a satisfaction average of 15%for consumers and 85%for the electric company results in 11%total load *** feed-in-tariff mechanism,in spite of increased social welfare,load reduction does not take place.

关键词： Dynamic pricing renewable energy resources feed-in-tariffs net metering net purchase and sale stochastic decision-making

来源：评论

学校读者我要写书评

暂无评论

Image-Based Fast Finite-Time Target Tracking Control of Onboard Inertially Stabilized Camera Platform

引用

IEEE Transactions on Industrial Electronics 2024年第12期71卷 16409-16418页

作者： Sun, Xunhong Zhu, Wenwu Du, Haibo Chen, Weile Chen, Chih-Chiang Hefei University of Technology School of Electrical Engineering and Automation Hefei230009 China Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Nanjing210096 China Southeast University School of Automation Nanjing210096 China National Cheng Kung University Department of Systems and Naval Mechatronic Engineering Tainan70101 Taiwan

In this article, we investigate the problem of fast finite-time target tracking control of the inertially stabilized platform (ISP) with a camera that mounted on a mobile robot. At first, the kinematics of the onboard ISP target tracking system is established by the geographic coordinate and pinhole camera model, which includes the state-dependent uncertainties and external disturbances. Then, based on the image information captured by camera, a continuous image-based fast finite-time control algorithm is designed for target tracking. Rigorous analysis proves that the target can be tracked at the center of camera's view in finite time in the absence of disturbances. In the presence of disturbances, the tracking error can converge to a region around the origin in finite time. Simulation and experimental comparisons are presented to confirm the efficiency of the proposed method. © 1982-2012 IEEE.

关键词： Mobile robots

来源：评论

学校读者我要写书评

暂无评论

Event-triggered predefined-time control for full-state constrained nonlinear systems: A novel command filtering error compensation method

引用

Science China(Technological Sciences) 2024年第9期67卷 2867-2880页

作者： PAN YingNan CHEN YiLin LIANG HongJing College of Control Science and Engineering Bohai UniversityJinzhou 121013China School of Automation Engineering University of Electronic Science and Technology of ChinaChengdu 611731China Laboratory of Electromagnetic Space Cognition and Intelligent Control Beijing 100089China

In this paper, a command filter-based adaptive fuzzy predefined-time event-triggered tracking control problem is investigated for uncertain nonlinear systems with time-varying full-state constraints. By designing a sliding mode differentiator, the inherent computational complexity problem within the predefined-time backstepping framework is solved. Different from the existing command filter-based finite-time and fixed-time control strategies that the convergence time of the filtering error is adjusted through the system initial value or numerous parameters, a novel command filtering error compensation method is presented,which tunes one control parameter to make the filtering error converge in the predefined time, thereby reducing the complexity of design and analysis of processing the filtering error. Then, an improved event-triggered mechanism(ETM) that builds upon the switching threshold strategy, in which an inverse cotangent function is designed to replace the residual term of the ETM,is proposed to gradually release the controller's dependence on the residual term with increasing time. Furthermore, a tan-type nonlinear mapping technique is applied to tackle the time-varying full-state constraints problem. By the predefined-time stability theory, all signals in the uncertain nonlinear systems exhibit predefined-time stability. Finally, the feasibility of the proposed algorithm is substantiated through two simulation results.

关键词： predefined-time control command filtering error compensation method event-triggered mechanism time-varying full-state constraints uncertain nonlinear systems

来源：评论

学校读者我要写书评

暂无评论

Isogeometric Shape and Topology Optimization of Kirchhoff-Love Shell Structures Using Analysis-Suitable Unstructured T-splines

引用

Computer-Aided Design and Applications 2025年第2期22卷 245-260页

作者： Wang, Wei Yang, Jiaming Du, Xiaoxiao Zhang, Pengfei Han, Pengfei Liu, Yazui Zhao, Gang School of Mechanical Engineering & Automation Beihang University China Research Institute of Aero-Engine Beihang University China

Structural shape and topology optimization plays a crucial role in the optimal design of shell structures, which are widely used in engineering fields. Isogeometric analysis provides a friendly alternative for the integrated design and analysis of shell structures. This paper developed an isogeometric shape and topology optimization framework for the optimal design of shell structures by using analysis-suitable unstructured T-splines. The Kirchhoff-Love shell theory is employed for structural analysis. The adjoint-based analytical sensitivity analysis is implemented for shape optimization and a smooth density distribution strategy is used for topology optimization. A multi-level scheme is established with a coarse mesh for the design model and a dense mesh for the analysis model. The proposed method is demonstrated by two shape optimization examples and one topology optimization example. © 2025 U-turn Press LLC.

关键词： Mesh generation

来源：评论

学校读者我要写书评

暂无评论

Study on frictional behavior of SiC_(f)/SiC composite clad tube clamping condition under nuclear irradiation

引用

Friction 2024年第5期12卷 919-938页

作者： Chenglong XIAO Liangliang SHEN Tianqi ZHU Jianbo TANG Ximing XIE Xinyu FAN Jian XU Zhiying REN School of Mechanical Engineering Zhejiang University of TechnologyHangzhou310023China Engineering Laboratory of Advanced Energy Materials Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo315201China State Key Laboratory of Fine Chemicals Liaoning High-Performance Polymer Engineering Research CenterSchool of Chemical EngineeringDalian University of TechnologyDalian116024China School of Mechanical Engineering and Automation Fuzhou UniversityFuzhou350116China School of Computer Science and Technology Shandong UniversityQingdao266237China Aviation Industry Corporation of China Ltd.Beijing100028China

Silicon carbide fiber reinforced silicon carbide matrix(SiC_(f)/SiC)composite is the key cladding material of nuclear fuel,which determines the safety and reliability of nuclear fuel storage and *** replacement of its storage and transportation scenario needs to be completed by the manipulator,but the application of SiC_(f)/SiC wear,fracture,and nuclear leakage in the snatching process of brittle-flexible-rigid contact in the irradiation environment has been seriously restricted due to unclear understanding of the damage ***,the effects of irradiation dose and clamping load on the friction characteristics of the contact interface between SiC_(f)/SiC clad tube are studied in this paper,and the effects of irradiation parameters and clamping force on the static friction coefficient of the contact interface between the clad tube and flexible nitrile are *** on the Greenwood-Williamson tribological model,a numerical model of the shape and structure of the contact micro-convex at the micro-scale of the clamping interface is constructed by introducing the multi-surface integral,and finally verified by *** research results show that there is a unique“Irradiation suppression zone”under the clamping condition of SiC_(f)/SiC cladding tube under the nuclear irradiation environment,and the growth of static friction coefficient slows down until stagnates after irradiation reaches a certain extent(600 kGy),and there will be a decline when the irradiation dose continues to increase,among which the clamping force of 15.2 N within the irradiation interval of 1,000 kGy can meet the safety of nuclear environment *** results of this paper can provide an important theoretical basis and application guidance for the safe operation of SiC_(f)/SiC cladding tubes in the storage and transportation clamping process.

关键词： SiC_(f)/SiC Clad tube nuclear irradiation conditions Greenwood-Williamson tribological model multi-surface integral

来源：评论

学校读者我要写书评

暂无评论

Adaptive Barrier-Lyapunov-Functions Based Control Scheme of Nonlinear Pure-Feedback Systems with Full State Constraints and Asymptotic Tracking Performance

引用

Journal of Systems Science & Complexity 2024年第3期37卷 965-984页

作者： NIU Ben WANG Xiaoan WANG Xiaomei WANG Xinjun LI Tao Faculty of Electronic Information and Electrical Engineering Dalian University of TechnologyDalian 116024China School of Information Science and Engineering Shandong Normal UniversityJinan 250014China School of Mathematics Southeast UniversityNanjing 211189China School of Automation Nanjing University of Information Science and TechnologyNanjing 210044China

In this paper,the authors propose an adaptive Barrier-Lyapunov-Functions(BLFs)based control scheme for nonlinear pure-feedback systems with full state *** to the coexist of the non-affine structure and full state constraints,it is very difficult to construct a desired controller for the considered *** to the mean value theorem,the authors transform the pure-feedback system into a system with strict-feedback structure,so that the well-known backstepping method can be ***,in the backstepping design process,the BLFs are employed to avoid the violation of the state constraints,and neural networks(NNs)are directly used to online approximate the unknown packaged nonlinear *** presented controller ensures that all the signals in the closed-loop system are bounded and the tracking error asymptotically converges to ***,it is shown that the constraint requirement on the system will not be violated during the ***,two simulation examples are provided to show the effectiveness of the proposed control scheme.

关键词： Asymptotic tracking control barrier Lyapunov functions full state constraints nonlinear pure-feedback systems

来源：评论

学校读者我要写书评

暂无评论

Trajectory tracking of robot manipulator with adaptive fuzzy second-order super-twisting sliding mode control

引用

Advanced Robotics 2023年第22期37卷 1438-1445页

作者： Zhu, Dachang Zhu, Puchen He, Yonglong School of Mechanical and Electrical Engineering Guangzhou University Guangzhou China Department of Mechanical and Automation Engineering The Chinese University of Hongkong Hong Kong

To solve the influence of uncertainties such as unmodeled errors and external disturbances on the trajectory tracking accuracy of the end-effector of a robot manipulator, a novel fuzzy super-twisting second-order sliding mode control method is proposed in this paper. Based on the dynamic model of the robot manipulator, a second-order sliding mode control algorithm is proposed by using the super-twisting to determine the non-singular terminal sliding manifold. An adaptive fuzzy algorithm is presented to compensate for the super-twisting second-order sliding mode control system for handling the chattering and overestimating the controller gains. The stability of the proposed controller is verified by the Lyapunov stability theory. Simulation and experimental results show that the proposed control method can enable the robot to track the trajectory accurately under complex and uncertain conditions and effectively suppress the chattering phenomenon of the system. © 2023 Informa UK Limited, trading as Taylor & Francis Group and The Robotics Society of Japan.

关键词： Sliding mode control

来源：评论

学校读者我要写书评

暂无评论

A Hybrid Air Quality Prediction Model Based on Signal Decomposition and Multi-Objective Optimization Algorithm

A Hybrid Air Quality Prediction Model Based on Signal Decomp...

引用

2023 China automation Congress, CAC 2023

作者： Qiao, Yinwei Wang, Jianrong Jia, Xinchun Xie, Yunfei School of Automation and Software Engineering Shanxi University Taiyuan China School of Automation and Software Engineering Shanxi University China

ISBN: (纸本)9798350303759

Accurate and stable prediction of the Air Qual-ity Index (AQI) is a hot topic among many researchers. In response to the nonlinear oscillation of AQI data itself and the tendency for many studies to focus only on accuracy while neglecting stability, a hybrid prediction model based on intel-ligent optimization algorithms has been developed. The model utilizes Sequential Variational Mode Decomposition (SVMD) to reduce data complexity and optimizes Elman Neural Net-work (ENN) using a newly proposed multi-objective algorithm called Merged Differential Evolution and Whale Optimization Algorithm (MODEWOA). The algorithm employs two fitness functions that consider both accuracy and stability. Results show that the proposed MODEWOA algorithm outperforms MOPSO and NSGA-II, while the hybrid model surpasses other comparative models in terms of prediction accuracy and stability. © 2023 IEEE.

关键词： Stability

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：