检索结果-内蒙古大学图书馆

2nd IEEE International Conference on Electrical, Automation and Computer engineering, ICEACE 2024

作者： Peng, Yu Liu, Yuhang Lin, Ruishi Xiang, Gang Wang, Shenhang Yang, Zhiming Beijing Aerospace Automatic Control Institute Department of System Engineering Beijing China Harbin Institute of Technology School of Electronics and Information Engineering Harbin China

ISBN: (纸本)9798350368208

The paper introduces an intermittent fault diagnosis method for analog circuits using EMD and CNN. The proposed method obtains the circuit output characteristics under different intermittent fault type using SPICE simulation. Then, EMD is used to extract the features and finally, the CNN model for fault detection and localization is built. The effectiveness of the method is validated through experiments in a three-phase SVPWM circuit. © 2024 IEEE.

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

A Hybrid Temporal-Magnitude Based Sampling for Event-Based control 3

A Hybrid Temporal-Magnitude Based Sampling for Event-Based C...

引用

3rd IEEE Industrial Electronics Society Annual On-Line Conference, ONCON 2024

作者： Miguel-Escrig, Oscar Sanchez-Moreno, Jose Romero-Perez, Julio-Ariel Dormido-Bencomo, Sebastian Universitat Jaume I Department of System Engineering and Design Castelló de la Plana Spain Department of Computer Science and Automatic Control Madrid Spain

ISBN: (纸本)9798331540319

In the current industrial environment, which is shifting towards an event-based control prone paradigm, sampling strategies in use must be revisited. Both temporal and magnitude dependent sampling strategies have been demonstrated to be suitable for control systems, reporting benefits in different categories. However, these sampling strategies also present some drawbacks, discussed in this contribution. Aiming to address some of these drawbacks, a new sampling strategy is proposed gathering characteristics of both predecessors. © 2024 IEEE.

关键词： Decentralized control

来源：评论

学校读者我要写书评

暂无评论

Error Dependent Sampling to Reduce Transient Events in Event Based control 3

Error Dependent Sampling to Reduce Transient Events in Event...

引用

3rd IEEE Industrial Electronics Society Annual On-Line Conference, ONCON 2024

作者： Miguel-Escrig, Oscar Romero-Perez, Julio-Ariel Sanchez-Moreno, Jose Dormido-Bencomo, Sebastian Universitat Jaume I Department of System Engineering and Design Castelló de la Plana Spain Department of Computer Science and Automatic Control Madrid Spain

ISBN: (纸本)9798331540319

One of the objectives of event-based control is the reduction of generated events to perform an appropriate process control. Among the event generation techniques used to this end, those quantifying the error signal can be found more frequently for its simplicity of implementation. However, they entail a drawback in the form of trade-off between event generation and performance. Aiming to reduce the number of events, specifically in the transient response, without degrading the performance, an error dependent sampling scheme is studied in this work. © 2024 IEEE.

关键词： Electromagnetic transients

来源：评论

学校读者我要写书评

暂无评论

Computing the explicit MPC solution in the constrained zonotope case 63

Computing the explicit MPC solution in the constrained zonot...

引用

63rd IEEE Conference on Decision and control, CDC 2024

作者： Stoican, Florin Mihai, Stefan S. Monnigmann, Martin Ciubotaru, Bogdan D. University 'Politehnica' of Bucharest Department of Automatic Control and Systems Engineering 313 Splaiul Independenţei Sector 6 Bucharest060042 Romania Ruhr University Bochum Martin Mönnigmann Is with Automatic Control and System Theory Bochum44801 Germany

ISBN: (纸本)9798350316339

Solving the explicit model predictive control (MPC) problem entails enumerating a list of critical regions and their ancillary feedback laws. Unfortunately, their number and the time required to compute them increase exponentially with the problem size (state-space model dimension and length of the prediction horizon). We show that when, as it is often the case, the problem's constraints take the form of boxes or zonotopes, the resulting feasible domain can be compactly described as a constrained zonotope. Subsequently, we investigate whether, and under which circumstances, the combinatorial structure of the constrained zonotope interpretation accelerates the computation of the explicit solution. © 2024 IEEE.

关键词： State space methods

来源：评论

学校读者我要写书评

暂无评论

Security issues in MCPS when using Wireless Sensor Networks 10

Security issues in MCPS when using Wireless Sensor Networks

引用

10th E-Health and Bioengineering Conference, EHB 2022

作者： Béatrix-May, Balaban Ştefan, Sacală Ioan Alina-Claudia, Petrescu-Niţă Radu, Simen Department of System Engineering Faculty of Automatic Control and Computers UPB Bucharest Romania

ISBN: (纸本)9781665485579

Considering the evolution of technology, the need to secure data is growing fast. When we turn our attention to the healthcare field, securing data and assuring privacy are critical conditions that must be accomplished. The information is sensitive and confidential, and the exchange rate is very fast. Over the years, the healthcare domain has gradually seen a growth of interest regarding the interconnectivity of different processes to optimize and improve the services that are provided. Therefore, we need intelligent complex systems that can collect and transport sensitive data in a secure way. These systems are called cyber-physical systems. In healthcare domain, these complex systems are named medical cyber physical systems. The paper presents a brief description of the above-mentioned intelligent systems. Then, we focus on wireless sensor networks and the issues and challenges that occur in securing sensitive data and what improvements we propose on this subject. In this paper we tried to provide a detailed overview about cyber-physical systems, medical cyber-physical systems, wireless sensor networks and the security issues that can appear. © 2022 IEEE.

关键词： Wireless sensor networks

来源：评论

学校读者我要写书评

暂无评论

Preventing Frequency Instability Using Large-Scale Photovoltaic Resources 8

Preventing Frequency Instability Using Large-Scale Photovolt...

引用

8th International Conference on Technology and Energy Management, ICTEM 2023

作者： Yari, Siavash Khoshkhoo, Hamid Rouzbehi, Kumars Emran, S. M. Ale Sahand University of Technology Faculty of Electrical Engineering Sahand Iran University of Seville Department of System Engineering and Automatic Control Seville Spain Faculty of Engineering Canada

ISBN: (纸本)9781665452854

Various control methods have been presented to prevent the occurrence of instability in power systems, among which, it seems that methods based on the special protection system (SPS) are more effective and efficient than other ones. In this article, a SPS using the capabilities of large-scale photovoltaic power plants (LSPVPPs) is presented to prevent frequency increase and instability in power systems. According to the presented algorithm, when frequency increases, the proposed SPS uses the ability of photovoltaic power plants to quickly change their generation powers based on the operating point and frequency changes to prevent frequency instability. To confirm the proposal, LSPVPPs along with their controllers are modeled in the DSL environment of DIgSILENT PowerFactory software. The proposed SPS is implemented and tested on the IEEE 39-bus test system and the results of dynamic simulations show that this SPS prevents frequency instability in different conditions by taking timely measures. © 2023 IEEE.

关键词： Electric power system protection

来源：评论

学校读者我要写书评

暂无评论

Initial Investigation of Online control system for Selective Laser Melting Process: Multi-Layer Level

Initial Investigation of Online Control System for Selective...

引用

UKACC International Conference on control (control)

作者： Taha Al-Saadi J. Anthony Rossiter George Panoutsos Department of Automatic Control and System Engineering University of Sheffield Mapping Street UK

ISBN: (数字)9798350374261

ISBN: (纸本)9798350374278

Selective Laser Melting (SLM), an additive manufacturing process, has attracted significant attention from academia and industry over the past two decades. SLM is a productive technique for creating complex industrial components and tools with fewer stages, resulting in resource conservation in contrast to conventional manufacturing methods. Nonetheless, the current platforms employed in SLM metal part production lack the efficient utilisation of an online closed-loop system. The literature showed a significant place for utilising advanced control systems to improve overall performance. Such enhancement will enable the process to be used to fabricate more sophisticated parts. Introducing an online control system could also empower part production with better internal microstructure characteristics. This research reports an initial investigation of applying a closed-loop system to reduce the effect of heat accumulation while building a multilayer object, thus improving the system. The controller changes the laser input in the track and considers the temperature residuals for the completed layers. The simulation results presented a significant improvement in disturbance rejection and better control of the melt-pool characteristics.

关键词： Temperature systematics Lasers Process control Metals Production Nonhomogeneous media

来源：评论

学校读者我要写书评

暂无评论

Modeling Method of Coaxial Cable Transmission Characteristics Based on Fourier Decomposition

Modeling Method of Coaxial Cable Transmission Characteristic...

引用

Electrical, Automation and Computer engineering (ICEACE), International Conference on

作者： Hao Li Ziyuan Zhan Zhizhuo Zhang Zhiming Yang Liang Bao Mouxun Sun Department of System Engineering Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (数字)9798350368208

ISBN: (纸本)9798350368215

At present, in the fields of mobile communication, aerospace and et al., the signal transmission quality problems caused by the structural damage of the coaxial cable have become increasingly prominent, and the fault diagnosis methods for the coaxial cable have also received extensive attention in the industrial field. However, most of the commonly used method, such as the numerical modeling-based methods only consider the effect of signal reflection and transmission delays, but the effect of signal attenuation is not discussed, which in turn undermine the effect of cable diagnosis method. In this regard, this paper proposes a method for analyzing the attenuation characteristics of coaxial cables based on Fourier decomposition. First, the attenuation characteristics of the coaxial cable on fixed frequency is measured by the vector network analysis. Then, the transmission attenuation for continuous frequency is modeled using the Support Vector Regression. Next, the arbitrary input signal is decomposed by Fourier Transform and the attenuation of the coaxial cable when any signal is input is finally established. This paper also carried out the pulse attenuation measurement experiment based on the hardware platform, and compared the measured results with the simulation results, which verified the effectiveness of the proposed method.

关键词： Support vector machines Analytical models Coaxial cables Simulation Network analyzers Attenuation measurement Attenuation Vectors Reflection Frequency measurement

来源：评论

学校读者我要写书评

暂无评论

automatic Drawbridge Scheduling by Integrating Highway and Waterway Traffic Flow Information

引用

IFAC-PapersOnLine 2024年第10期58卷 290-295页

作者： M.J. Mooij J.R. Dominguez Frejo V. Reppa Department of Maritime and Transport Technology Delft University of Technology Netherlands Department of System Engineering and Automatic Control University of Seville Spain

As inland waterway usage intensifies, it increasingly intersects and conflicts with railway and road transportation modes, highlighting the need for efficient management of these critical junctures. In particular, movable bridges represent a key intersection of highway and waterway Traffic but also a potential source of conflict. This paper proposes and analyzes the use of automatic schedulers that consider both highway and waterway Traffic, reduce conflicts, and make key decisions about bridge use. The METANET macroscopic Traffic model is elaborated to allow the simulation of drawbridge openings on the highway mainline, based on the modelling of mainstream metering. Several MPC-based schedulers are proposed using the designed highway Traffic model and key vessel information, aiming to study the impact of the bridge opening and scheduling on highway Traffic. The simulation results indicate a significant reduction in Traffic conflicts at drawbridge intersections due to the implementation of these schedulers. The functioning of the schedulers is shown to be robust and demonstrate verifiable behavior, indicating their high potential in real-world applications.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Research on the Method of Remaining Useful Life Prediction of Lithium-Ion Battery Based on LSTM

Research on the Method of Remaining Useful Life Prediction o...

引用

Electrical, Automation and Computer engineering (ICEACE), International Conference on

作者： Shenhang Wang Junjie Wang Gang Xiang Ruishi Lin Yu Peng Zhiming Yang Department of System Engineering Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (数字)9798350368208

ISBN: (纸本)9798350368215

Lithium-ion batteries are prone to capacity degradation during use, leading to a decline in their reliability and potentially causing catastrophic failures. This necessitates the study of advanced methods for estimating the lifespan of lithium-ion batteries. To address this need, this paper conducts research in three areas: the extraction of degradation features, the construction of health factors, and the development of predictive models, proposing a comprehensive framework for estimating the remaining useful life of lithium-ion batteries. Firstly, the general trends of external feature parameters as a function of cycling are observed to identify the features that indicate battery degradation. Next, the relationship between these features and battery capacity is determined using Grey Relation Analysis, allowing for the construction of an indirect health factor. Finally, a data-driven prediction method is employed to construct a predictive network model using Long Short-Term Memory networks, with the health factor used for training to accurately predict the health state of the lithium-ion battery. The effectiveness of the proposed remaining life prediction method is validated using the NASA Battery Set dataset from NASA Ames Research Center.

关键词： Lithium-ion batteries Degradation Training Accuracy Noise NASA Predictive models Feature extraction Market research Long short term memory

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：