检索结果-内蒙古大学图书馆

第25届中国控制与决策会议

作者： Dexuan Zou Xin Wang School of Electrical Engineering and Automation Jiangsu Normal University Information and Control Engineering faculty Shenyang Jianzhu University School of Information Science and Engineering Northeastern University

ISBN: (纸本)9781467355339

We use the novel modified differential evolution (NMDE) algorithm algorithm to determine the model parameters of photovoltaic modules in this paper. NMDE is a new proposed DE variation, and each solution has its own scale factor and crossover rate. In detail, for each solution vector, its own scale factor and crossover rate are adaptively adjusted in terms of the corresponding values of all successful solutions. In addition, if it is continuously at a standstill during a fixed number of iterations SP (Stagnation period), its scale factor and crossover rate will be randomly generated according to normal distribution. Experimental results show that NMDE is an effective method on finding suitable parameters of PV model.

关键词： Novel modified differential evolution, Photovoltaic module, Scale factor, Crossover rate, Normal distribution

来源：评论

学校读者我要写书评

暂无评论

The effects of parameter variation in open-loop and closed-loop control scheme for an electro-hydraulic actuator system

International Journal of Control and Automation

引用

International Journal of control and automation 2016年第11期9卷 283-294页

作者： Soon, C.C. Ghazali, R. Jaafar, H.I. Hussien, S.Y.S. Sam, Y.M. Rahmat, M.F. Centre for Robotics and Industrial Automation Faculty of Electrical Engineering Universiti Teknikal Malaysia Melaka Durian Tunggal Hang Tuah Jaya Melaka76100 Malaysia Department of Control and Mechatronics Engineering Faculty of Electrical Engineering Universiti Teknologi Malaysia Skudai Johor81310 Malaysia

It is well known that the electro-hydraulic actuator (EHA) system is exposed to the disturbances, uncertainties, and parameter variations which are caused by the changes in operating conditions for instance, total moving mass, supply pressure, servo-valve gain, bulk modulus, leakage coefficient, and friction. These problems pose to a great challenge in modelling and controller development for an EHA system. Degradation of the desired performance can be imposed if an improper control strategy is utilized. This paper discusses the fundamental study on the significant effect that leads to degradation of EHA system performance due to variation in the system parameters. A nonlinear EHA system model is developed and implemented in the simulation studies in open-loop and closed-loop control configuration. The finding shows that the servo-valve gain resulted the most influential parameters to the EHA system performance as compared to the total moving mass and supply pressure parameters. In order to overcome these issues, the utilized controller should be robust enough to overcome the entire operating range that against such disturbances, uncertainties, and parameter variations. Therefore, a nonlinear and the intelligent control approach may be necessary to be designed in order to overcome these difficulties. © 2016 SERSC.

关键词： Closed loop control systems

来源：评论

学校读者我要写书评

暂无评论

Fast convergent on-board Li-ion battery state of charge estimation via back-forth moving horizon estimation

引用

IEEE Transactions on Power Electronics 2025年

作者： Liu, Zhihao Xiao, Yu Yuan, Yuan Xu, Xiaodong Luo, Biao Huang, Tingwen Ministry of Education School of Automation and Key Laboratory of Industrial Intelligence and Systems Central South University Changsha 410083 China Shenzhen University of Advanced Technology Faculty of Computer Science and Control Engineering Shenzhen China

Accurate state of charge (SOC) estimation is crucial for the safe operation of lithium-ion batteries (LIBs), yet existing methods are limited by sensitivity to initial SOC guess or high computational complexity. To address these challenges, this study proposes an onboard back-forth moving horizon estimation (BFMHE) framework for SOC estimation, achieving high precision, robustness, and computational efficiency compatible with microcontroller implementation. An efficient linear equivalent circuit model (ECM) is established, where the open-circuit voltage-SOC relationship is approximated by piecewise linear functions. The proposed framework employs two MHE estimators that iteratively operate in opposite directions over a finite time horizon, which enables rapid convergence. Moreover, this study provides a rigorous proof of the stability of the BFMHE method for the battery system with current input. The proposed approach is validated experimentally under various operating conditions and with different initial SOC guesses. Experimental results show that the proposed onboard BFMHE method achieves a maximum estimation error of less than 1% and quickly converges to the true SOC value, demonstrating strong robustness to initial estimation errors. © 1986-2012 IEEE.

关键词： Back-forth moving horizon estimation Convergence analysis Lithium-ion battery State of charge estimation

来源：评论

学校读者我要写书评

暂无评论

Design Software in Tasks of Algorithmization of Manipulation Robots in Assembly of Parts with a Shaft-Bushing Connection Method

Design Software in Tasks of Algorithmization of Manipulation...

引用

2024 International Russian Smart Industry Conference, SmartIndustryCon 2024

作者： Arkhipov, Maksim V. Malkarov, Artem Yu. Matrosova, Vladlena V. Moscow Polytechnic University Faculty of Mechanical Engineering Department of Automation and Control Moscow Russia

ISBN: (纸本)9798350395044

This article presents developments by its authors: the IndustrialKit library package and the RCWorkspace application based on it. The library allows developers of third-party applications to use the functionality of programming and modeling robotic technological complexes in their products. The object-oriented concept of the package provides opportunities for offline training of manipulation robots in a developed simulation environment, subsequent transfer and launch of programs on real robots, organization of feedback control and obtaining statistical data from industrial equipment - common models of robots and various equipment devices, which is achieved through a unified structure of program modules. The connection of external visual models of production system components - robots, tools and parts - is demonstrated. An example of performing the task of assembling parts with spline joints is also given. © 2024 IEEE.

关键词： Computer software

来源：评论

学校读者我要写书评

暂无评论

Robust Leader-Following Output Regulation of Uncertain Multi-Agent Systems With Time-Varying Delay

引用

IEEE/CAA Journal of Automatica Sinica 2018年第4期5卷 807-817页

作者： Ala Shariati Qing Zhao Automation&Control Research Group Faculty of Electrical and Computer EngineeringKhajeh Nasir Toosi University of TechnologyTehran ***Iran Department of Electrical and Computer Engineering at University of Alberta EdmontonAlberta T6R1Z6Canada

In this paper, the robust analysis and design of leader-following output regulation for multi-agent systems described by general linear models is given in presence of timevarying delay and model uncertainty. To this aim, a new regulation protocol for the closed-loop multi-agent system under a directed graph is proposed. An important specification of the proposed protocol is to guarantee the leader-following output regulation for uncertain multi-agent systems with both stable and unstable agents. Since many signals can be approximated by a combination of the stationary and ramp signals, the presented results work for adequate variety of the leaders. The analysis and design conditions are presented in terms of certain matrix inequalities. The method proposed can be used for both stationary and ramp leaders. Simulation results are presented to show the effectiveness of the proposed method.

关键词： Linear matrix inequality(LMI) multi-agent systems robust leader-following output regulation time-varying delay

来源：评论

学校读者我要写书评

暂无评论

The Study of Materials for Electric Field Protection of Power Transformer Testing 9

The Study of Materials for Electric Field Protection of Powe...

引用

9th International Conference on engineering, Applied Sciences, and Technology, ICEAST 2023

作者： Meesuk, Peerawat Bunpakdee, Prajak Sorn-In, Sirirat Bansomdejchaopraya Rajabhat Univrtsity Electrical Engineering and Automation Control System Program Faculty of Engineering and Industrial Technology Bangkok Thailand

ISBN: (纸本)9798350322040

This paper proposes the analysis of the material can be protected from transformer testing and presents a mathematical model of the power transformer. In this research, transformers were study in four protective materials, wood, rubber, glass and acrylic that are used in between the electric field measurement and the transformer. By simulating the test results of a transformer with a voltage of 230 kV. Computer-based simulation utilizing the finite element method (FEM) is exploited as a tool for visualizing electric fields distribution volume a power transformer. The simulation results showed that the material with the best protection against the electric field was wood insulation and the best installation location was a distance of 5 m from the transformer. © 2023 IEEE.

关键词： Finite element method

来源：评论

学校读者我要写书评

暂无评论

Lossless and lossy compression in 4D bio-modeling

Lossless and lossy compression in 4D bio-modeling

引用

1st International Conference on Information and Communication Technology and Accessibility, ICTA 2007

作者： Žagar, Martin Kovac, Mario Bosnic, Ivana Department of Control and Computer Engineering in Automation Faculty of Electrical Engineering and Computing Unska 3 HR-10000 Zagreb Croatia

ISBN: (纸本)9789973879141

Bio-modeling has important role in virtual reality in telemedicine providing base for simulations and decisions. Virtual reality is based on sequences of volumetric images whose motion is captured in time. These data sets are typically very large in size and demand a great amount of resources for storage and transmission. Therefore it is necessary to compress this data both fast and efficiently. We will propose combination of lossless and lossy compression models to obtain toset demands.

关键词： Virtual reality

来源：评论

学校读者我要写书评

暂无评论

High precision density measurement with coriolis mass owmeters

High precision density measurement with coriolis mass owmete...

引用

IMTC'05 - Proceedings of the IEEE Instrumentation and Measurement Technology Conference

作者： Kolahi, K. Schröder, T. Röck, H. Department of Automation and Control Engineering Faculty of Engineering Christian-Albrechts-University of Kiel Kaiserstrasse 2 24143 Kiel Germany

ISBN: (纸本)0780388798

Today Coriolis meters offer the beat performance in mass flow measurement. For those applications, where accuracy, low pressure drop and good cleanability is needed, the single straight tube is the best alternative. The tubes oscillate in resonance and the resonance frequency provides information about fluid's density, which is besides mass flow also an important parameter for quality and process control. A shortcoming of Coriolis mass flowmeters for density measurement is the lack of a sophisticated compensation method taking into account the dependency of the resonance frequency on temperature, flowrate, pressure, viscosity etc. In fact several heuristic methods are in use to achieve good solutions to correct the density readings. However, these methods are complex, device specific and expensive. In this paper a method is presented to overcome these drawbacks. It is based on a dynamic model of the mass flowmeter and allows for parameter identification of the measuring tube during operation. To be more specific, the effective spring constant of the oscillating tube is detected online. Using this result, the vibrating mass and subsequently the density of the fluid are calculated taking into account the resonance frequency. © 2005 IEEE.

关键词： Density measurement (specific gravity)

来源：评论

学校读者我要写书评

暂无评论

Algorithm for fast determination of LiFePO4 battery nominal current

Algorithm for fast determination of LiFePO4 battery nominal ...

引用

2014 37th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2014

作者： Sirotić, Igor Šunde, Viktor Ban, Željko Faculty of Electrical Engineering and Computing Department of Electric Machines Drives and Automation Zagreb Croatia Faculty of Electrical Engineering and Computing Department of Control and Computing Engineering Zagreb Croatia

ISBN: (纸本)9789532330816

The development of production and increasing usage of light electric vehicles such as electric bicycles and electric scooters entails development of batteries, battery chargers and fast charging algorithms. Batteries with different nominal electrical characteristics and production technologies are currently in use. Among them, lithium-iron batteries are increasingly being used. The differences in basic characteristics of batteries and standardization issues require fast identification of various battery types and adapting of charging algorithms according to nominal current, voltage, capacity and state of charge. This paper describes a method for determining the nominal current for unknown LiFePO4 battery connected to the stationary filling station for charging electric bicycles. A prerequisite for determination of the rated current is identification of current-voltage curve at the moment of connection and identification of the number of cells. The algorithm for determining these parameters is given in the first part of the paper. The second part deals with determination of the nominal current for LiFePO4 battery based on current-voltage response to the selected battery charging algorithm. © 2014 MIPRO.

关键词： Lithium compounds

来源：评论

学校读者我要写书评

暂无评论

Two-Stage Robust Optimization Under Decision Dependent Uncertainty

引用

IEEE/CAA Journal of Automatica Sinica 2022年第7期9卷 1295-1306页

作者： Yunfan Zhang Feng Liu Yifan Su Yue Chen Zhaojian Wang João P.S.Catalão State Key Laboratory of Power System and Generation Equipment the Department of Electrical EngineeringTsinghua UniversityBeijing 100084China Department of Mechanical and Automation Engineering the Chinese University of Hong KongHong Kong SARChina Ministry of Education Key Laboratory of System Control and Information Processing the Department of AutomationShanghai Jiao Tong Universityand also with Shanghai Engineering Research Center of Intelligent Control and ManagementShanghai 200240China Faculty of Engineering of the University of Porto and Institute for Systems and Computer Engineering Technology and Science(INESC TEC)Porto 4200-465Portugal IEEE

In the conventional robust optimization(RO)context,the uncertainty is regarded as residing in a predetermined and fixed uncertainty *** many applications,however,uncertainties are affected by decisions,making the current RO framework *** paper investigates a class of two-stage RO problems that involve decision-dependent *** introduce a class of polyhedral uncertainty sets whose right-hand-side vector has a dependency on the here-and-now decisions and seek to derive the exact optimal wait-and-see decisions for the second-stage problem.A novel iterative algorithm based on the Benders dual decomposition is proposed where advanced optimality cuts and feasibility cuts are designed to incorporate the uncertainty-decision *** computational tractability,robust feasibility and optimality,and convergence performance of the proposed algorithm are guaranteed with theoretical *** motivating application examples that feature the decision-dependent uncertainties are ***,the proposed solution methodology is verified by conducting case studies on the pre-disaster highway investment problem.

关键词： Benders decomposition decision-dependent uncertainty endogenous uncertainty robust optimization(RO)

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：