检索结果-内蒙古大学图书馆

2022 International Conference on Electrical, control and Information Technology, ECITech 2022

作者： Wang, Ziqi Liu, Ying Xiao, Zhihong Chen, Wei Zhang, Xianglong Shen, Hongming Automation Control Design Research Center State Grid Economic and Technological Research Institute Beijing China

ISBN: (纸本)9783800759170

Rational partitioning method of power grid for control system is important. In a power system, the lines with similar power compositions are closely related to each other. There is a high risk of cascading overloads among them in the case of heavy loads or lines broken. A partitioning method for the security and stability control system in power grid is introduced in this study. The method can promote the clustering of transmission lines in close association, improve the work efficiency of master stations of control systems and ensure the safe and stable operation of power grids. The simulation results shows the effectiveness of the method. © VDE VERLAG GMBH ∙ Berlin ∙ Offenbach.

关键词： control systems

来源：评论

学校读者我要写书评

暂无评论

An Improved Distance Protection Method For Positive Sequence Voltage Polarization Based On Offset Angle 4

An Improved Distance Protection Method For Positive Sequence...

引用

4th International Conference on Energy, Power and Electrical Engineering, EPEE 2024

作者： Feng, Teng Han, Liu Hu, Changbin Jing, Liuming State Grid Economic and Technological Research Institute Co. Ltd. Automation and Control Design Research Center Beijing China North China University of Technology Beijing Power Electronics and Electrical Drives Engineering Research Center Beijing China

ISBN: (纸本)9798331518066

Power electronic converters are used at both ends of 220 kV alternating current (AC) lines in offshore wind farms, and their fault characteristics are greatly affected by the converters, and there is a risk of incorrect action when traditional distance protection is applied to AC lines of flexible direct current (DC) delivery systems. To address this problem, the low voltage ride-through control strategy of the grid-side converter is introduced, and its influence on the action characteristics of distance protection based on positive sequence voltage polarization is analyzed. On this basis, an improved distance protection method is proposed to adjust the distance protection action range by using the offset angle to ensure the correct action of the distance protection, and the effectiveness of the proposed method is verified by the PSCAD/EMTDC simulation test results. © 2024 IEEE.

关键词： Offshore wind farms

来源：评论

学校读者我要写书评

暂无评论

Decentralized Game-based Auction Algorithm for Scheduling Robotic Chargers to Service EVs with Uncertain Demands

IEEE Transactions on Intelligent Vehicles

引用

IEEE Transactions on Intelligent Vehicles 2024年 1-14页

作者： Fang, Qiuyang Zhang, Jianlei Wang, Chen Xie, Guangming Zhang, Chunyan Department of Automation College of Computer and Control Engineering Nankai University Tianjin China National Engineering Research Center of Software Engineering Peking University Beijing China State Key Laboratory for Turbulence and Complex Systems Intelligent Biomimetic Design Lab College of Engineering Peking University Beijing China

In this study, we introduce a novel auction-based algorithm modeled as a decentralized coalition formation game, designed for the complex requirements of large-scale multi-robot task allocation under uncertain demand. This context is particularly illustrative in scenarios where robots are tasked to charge electric vehicles. The algorithm begins by partitioning a composite task sequence into distinct subsets based on spatial similarity principles. Subsequently, we employ a coalition formation game paradigm to coordinate the assembly of robots into cooperative coalitions focused on these distinct subsets. To mitigate the impact of unpredictable task demands on allocations, our approach utilizes the conditional value-at-risk to assess the risk associated with task execution, along with computing the potential revenue of the coalition with an emphasis on risk-related outcomes. Additionally, integrating consensus auctions into the coalition formation framework allows our approach to accommodate assignments for individual robot-task pairings, thus preserving the stability of individual robotic decision autonomy within the coalition structure and assignment distribution. Simulative analyses on a prototypical parking facility layout confirm that our algorithm achieves Nash equilibrium within the coalition structure in polynomial time and demonstrates significant scalability. Compared to competing algorithms, our proposal exhibits superior performance in resilience, task execution efficiency, and reduced overall task completion times. The results demonstrate that our approach is an effective strategy for solving the scheduling challenges encountered by multi-robot systems operating in complex environments. IEEE

关键词： Polynomial approximation

来源：评论

学校读者我要写书评

暂无评论

Finite-Time Synchronization of Flux-controlled Complex-Valued Memristive Neural Networks

Finite-Time Synchronization of Flux-Controlled Complex-Value...

引用

2023 International Conference on Neuromorphic Computing, ICNC 2023

作者： Wang, Yonghuan Wang, Leimin Wu, Genping China University of Geosciences Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education School of Automation Wuhan430074 China Wuhan Second Ship Design and Research Institute Wuhan430064 China

ISBN: (纸本)9798350316889

In this paper, by using the flux-controlled memristor model, the finite-time synchronization problem of delayed complex-valued memristive neural networks (MCNNs) is studied. Firstly, according to the proposed memristor model, we model the MCNNs as continuous systems on voltage-flux-time (wp, varpi, t) domain. Then, we design a class of approaches to realize state synchronization between the drive and response systems, and the corresponding synchronization conditions are achieved. Finally, the effectiveness of results is illustrated with the simulations. © 2023 IEEE.

关键词： Memristors

来源：评论

学校读者我要写书评

暂无评论

The Smart design Method of OPGW Grounding Based on the Multi-Dimensional Evaluation Indicators 6

The Smart Design Method of OPGW Grounding Based on the Multi...

引用

6th International Conference on Energy Systems and Electrical Power, ICESEP 2024

作者： Wei, Qi Jin, Guangxiang Wei, Yong Wang, Xianchun Yang, Huifeng State Grid Economic and Technological Research Institute CO. LTD. Research Center for Automation and Control Design Beijing China State Grid Hebei Information & Telecommunication Branch Shijiazhuang China State Grid Hengshui Electric Power Supply Company Hengshui China

ISBN: (纸本)9798350353563

With the advancement of the dual carbon goals and the construction of the new-type power system, the functional demands and the quality requirements for OPGW (optical fiber composite overhead ground wire) are gradually enhancing. Especially with the frequent ice disaster caused by the extreme weather, more economic and more scientific design method for the OPGW grounding is required for different situations. A smart design method of OPGW grounding mode based on the multi-dimentional evaluation indicators is proposed. The evaluation indicator and the optimization algorithm are the cores. We propose a new economic analysis model with the cost of the electric energy loss for OPGW grounding and eleven technical indicators. The method proposed is to realize the refinement of the OPGW grounding design. The simulation results show that base-by-base grounding is more economical than the sectional insulation grounding of OPGW in 220kV line. © 2024 IEEE.

关键词： Integrated circuit design

来源：评论

学校读者我要写书评

暂无评论

Preassigned-Time Synchronization of Memristive Chaotic Circuit via Intermittent control

Preassigned-Time Synchronization of Memristive Chaotic Circu...

引用

2023 International Conference on Neuromorphic Computing, ICNC 2023

作者： Wang, Qiming Wang, Leimin Wu, Genping China University of Geosciences School of Automation Wuhan430074 China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan430074 China Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan430074 China Wuhan Second Ship Design and Research Institute Wuhan430064 China

ISBN: (纸本)9798350316889

In this paper, the preassigned-time synchronization (PTS) problem for a fifth-order memristive chaotic circuit (MCC) is investigated by designing a time-dependent intermittent controller. First, the dynamic characteristics of the MCC, especially the existence and occurrence of chaos, are investigated by simulation experiments. Besides, the stability of the equilibrium points is discussed by using Routh-Hurwitz criterion. Then, a time-dependent intermittent controller is designed and the PTS of MCC is realized via the presented controller. Finally, the effectiveness of theoretical results is verified by means of numerical simulations. © 2023 IEEE.

关键词： controllers

来源：评论

学校读者我要写书评

暂无评论

Study on System Architecture and Implementation Plan of Substation Remote control System Based on Centralized control Mode 10

Study on System Architecture and Implementation Plan of Subs...

引用

10th China International Conference on Electricity Distribution, CICED 2022

作者： Wu, Congying Han, Liu Xiao, Zhihong Mu, Huaizhi Tian, Yuzhou Cao, Yang Automation and Control Design Research Center State Grid Economic and Technological Research Institute CO. LTD. Beijing China Intelligentization Branch Office Northeast Electric Power Design Institute Co. Ltd Changchun China

ISBN: (数字)9781665452687

ISBN: (纸本)9781665452687

In this paper, the system architecture of the new generation substation centralized control mode is taken as the starting point. In addition, with the substation secondary system data, the data interaction and interface technology of substation remote control system based on centralized control mode are studied. The basic principles of the project implementation plan are proposed in this paper, which provides reference for the grid company in the construction and management of the new generation independent and controllable substation. © 2022 IEEE.

关键词： Remote control

来源：评论

学校读者我要写书评

暂无评论

Economic research on User-Side Photovoltaic Energy Storage System Considering Shared Energy Storage 5

Economic Research on User-Side Photovoltaic Energy Storage S...

引用

5th International Conference on Power and Energy Technology, ICPET 2023

作者： Chen, Kaiwen Wang, Qingyi Kang, Kai Wang, Hao School of Automation China University of Geosciences Wuhan China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan China Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan China PowerChina Hubei Electric Engineering Co. Ltd Wuhan China Wuhan Second Ship Design and Research Institute Wuhan China

ISBN: (纸本)9798350339673

Based on the background of photovoltaic development in the whole county and the demand for energy storage on the user-side, this paper establishes an economic evaluation model of user-side photovoltaic energy storage system considering shared energy storage. Firstly, three schemes of no energy storage, independent energy storage and shared energy storage are proposed, and the influence of photovoltaic energy storage system loss on annual power generation is considered. Secondly, based on the whole life cycle theory, the cost and benefit model of the user-side photovoltaic energy storage system is established, and the unit electricity cost of the user is used as the evaluation index. Finally, the relevant data of user in Hubei area are analyzed as an example to verify the effectiveness of the model and provide reference for the investment of related projects. © 2023 IEEE.

关键词： photovoltaic energy storage system shared energy storage the unit electricity cost of the user user-side

来源：评论

学校读者我要写书评

暂无评论

An Improved Safe Braking Model of Virtually Coupled Trains for Closer Tracking 21

An Improved Safe Braking Model of Virtually Coupled Trains f...

引用

21st International Conference on Networking, Sensing and control, ICNSC 2024

作者： Yan, Wenxiao Wang, Jiayu Fan, Liqun Liu, Qiusheng Jia, Qingdong Wang, Yihan Liu, Hongjie Shenzhen Metro Group Co. Ltd. Shenzhen518026 China Shenzhen Municipal Design and Research Institute Co. Ltd. Shenzhen518029 China Traffic control Technology Co. Ltd. Beijing100070 China School of Automation and Intelligence Beijing Jiaotong University Beijing100044 China Beijing Jiaotong University National Engineering Research Center of Rail Transportation Operation and Control System Beijing100044 China

ISBN: (纸本)9798350365221

With the rapid growth of transportation passenger flow in recent years, the research direction of Virtual Coupling (V C) in railways has become hot. V C increases capacity by tracking shorter distances. The traditional train emergency braking (EB) model can no longer meet the high operating efficiency requirements of VC. VC urgently needs a more efficient safety EB model. Therefore, to improve efficiency, a measurement of the EB model's rationality is defined considering safety and efficiency. Based on the defined model measurement, an EB model optimization method and a new EB model are proposed. The new model is closer to the actual braking process of the train and ensures safety from the distance level. That is, the braking trajectory of the train calculated by the new model is closer to the actual braking trajectory of the train, and the two braking trajectories satisfy the specific safety constraints. Finally, the safety and efficiency of the new model were verified through simulation experiments. The new model can avoid train collisions during the entire EB process. Experimental results show that compared with the traditional old EB model of VC based on space-time interval [1], the new model's minimum safe distance (MSD) between two VC train units can be reduced by 39%. © 2024 IEEE.

关键词： Railroad accidents

来源：评论

学校读者我要写书评

暂无评论

End-to-End Optical Layer Slicing Technology in Multi-Format Power Communication Optical Networks of SDH and OTN

End-to-End Optical Layer Slicing Technology in Multi-Format ...

引用

International Conference on Advanced Infocomm Technology (ICAIT)

作者： Jiangsheng Li Kunpeng Zheng Yongli Zhao Guangxiang Jin Mengxi Zhang Yufei Shi Automation and Control Design Research Center State Grid Economic and Technological Research Institute Co. Ltd Beijing China School of Electronic Engineering) Beijing University of Posts and Telecommunications Beijing China

ISBN: (数字)9798350391497

ISBN: (纸本)9798350391503

With the increasing number of transmission and distribution networks, end-to-end optical layer slicing is expected to provide a more efficient transmission method for power communication networks. However, the coexistence of multiple communication systems such as synchronous digital hierarchy (SDH) and optical transport network (OTN) in current power communication networks poses challenges for end-to-end optical layer slicing. In this paper, against the backdrop of power communication networks where SDH and OTN communication systems coexist, we analyze the differences between SDH and OTN communication systems and consider two types of requests: bandwidth-constrained and latency-constrained. We construct an integer linear programming (ILP) model for slicing mapping and design a slicing request mapping strategy based on consistent transmission bandwidth and another slicing request mapping strategy based on minimal transmission latency. Surrounding the proposed content, we design simulation evaluation metrics for the two strategies and compare their performance with traditional strategies. We evaluate and discuss the effectiveness and efficiency of the two proposed strategies, providing a reference solution for the integration research of power communication networks under multiple communication systems.

关键词： Integrated optics Measurement Synchronous digital hierarchy Focusing Bandwidth Distribution networks Optical fiber networks Integer linear programming Mathematical models Communication networks

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：