检索结果-内蒙古大学图书馆

16th IEEE PES Asia-Pacific power and Energy Engineering Conference, APPEEC 2024

作者： Liang, Zhihong Hong, Chao Yang, Yiwei Chen, Lin Xu, Wenqian Li, Pandeng Du, Jinran Lai, Boyu Electric Power Research Institute China Southern Power Grid Guangdong Provincial Key Laboratory of Power System Network Security Guangzhou China

ISBN: (纸本)9798350386127

This study has designed and implemented a simulation platform to address the security challenges posed by the networking of power systems. The platform simulates the response and stability of power systems under cyber attacks, such as Denial of Service (DoS) and False Data Injection (FDI). It integrates energy management systems, communication networks, and physical power system simulators to create a controlled environment for testing and optimizing security strategies. By applying advanced communication protocols and network latency simulation techniques, the platform ensures secure and efficient data transmission while allowing comprehensive testing of security measures. Simulation results demonstrate the platform's ability to effectively model various cyber attack scenarios and assess their impact on the stability and security of power systems. This research underscores the importance of implementing robust cyber and physical security measures and the necessity of providing comprehensive security for power systems. Through this platform, the study not only reveals the vulnerabilities of power systems under cyber attacks but also provides experimental data and theoretical support for future security strategy development. © 2024 IEEE.

关键词： Cyber attacks

来源：评论

学校读者我要写书评

暂无评论

Data Security Risk Assessment Method Based on Big Data Technology 16

Data Security Risk Assessment Method Based on Big Data Techn...

引用

16th IEEE International Conference on Computational Intelligence and Communication Networks, CICN 2024

作者： Zhang, Xiaolu Shen, Wuqiang Liang, Zheheng Cui, Lei Wang, Yechao Guangdong Power Grid Corporation Guangdong Guangzhou China Joint Laboratory on Cyberspace Security China Southern Power Grid Guangdong Guangzhou China

ISBN: (纸本)9798331505264

With the acceleration of digital transformation, the risk of data leakage and destruction is becoming increasingly serious, and traditional data security assessment methods may not be able to effectively respond to complex and ever-changing security threats. In order to break through the bottleneck, this article conducts a comprehensive analysis of network data flow, host request flow, and business response flow during the information model construction stage. The article evaluates the security status of network traffic by setting a time window, recording and extracting network flow data features, and using a classification module. Subsequently, for the service request flow and response flow, their behavioral characteristics are extracted and a classification module is applied to detect abnormal behavior. Secondly, the article measures the security risks of information systems, using the VAR model to evaluate information security risks. The risk assessment process is simplified by calculating the probability of asset value loss, and the evaluation indicators are determined by combining weights. Finally, an information security situational awareness optimization model for decision tree calculation is constructed, and a perception matrix is established to quantify static and dynamic sensing indicators. The research results indicate that the risk assessment model based on decision tree algorithm can effectively identify potential security risks with an accuracy of 92.50%, and its assessment results have a high consistency with actual security events. © 2024 IEEE.

关键词： Information leakage

来源：评论

学校读者我要写书评

暂无评论

Large-scale non-real-time Simulation Platform for power Systems Based on Cloud Computing 4

Large-scale non-real-time Simulation Platform for Power Syst...

引用

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

作者： Zhang, Jingyue Lu, Yuanhong Hu, Yufeng Zhang, Jie Guo, Haiping Huang, Libin Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System Guangzhou China National Energy Power Grid Technology R&d Centre Guangzhou China China Southern Power Grid Co. Ltd Guangzhou China State Key Laboratory of Hvdc Electric Power Research Institute China Southern Power Grid Guangzhou China

ISBN: (纸本)9798331518066

The rapid evolution of smart grids has increased the complexity of power system structures and operational characteristics, presenting new challenges in system management and reliability. Traditional power system simulation tools struggle with non-real-time data processing and scalability due to limitations in their architectural designs. Moreover, existing cloud simulation platforms are constrained by closed hardware architectures and lack sufficient non-real-time capabilities. As a solution, we propose a novel large-scale non-real-time simulation platform for power systems based on cloud computing, designed with a modular architecture. By leveraging advanced technologies in cloud computing, parallel computing, and non-real-time simulation, our platform addresses critical needs for scalability, efficiency, and cost-effectiveness. We discuss how integrating these technologies enhances computational performance and supports complex simulation tasks, ultimately improving decision-making and operational efficiency in power system management. © 2024 IEEE.

关键词： Cloud platforms

来源：评论

学校读者我要写书评

暂无评论

Abnormal Electricity Consumption Behavior Detection Based on Highway Network 24

Abnormal Electricity Consumption Behavior Detection Based on...

引用

5th International Conference on Computer Information and Big Data Applications, CIBDA 2024

作者： Long, Zhenyue Zhang, Jinbo Cui, Lei Xie, Dehua Joint Laboratory on Cyberspace Security China Southern Power Grid Guangzhou China ChinaInformation Center Guangdong Power Grid Corporation Guangzhou China

ISBN: (纸本)9798400718106

Electricity is one of the most important energy sources, impacting the economy and security of regions. Research on reducing non-technical losses in electricity is of practical significance. Due to the diversity of abnormal electricity usage, using data-driven techniques to detect such anomalies has become necessary. This paper designs an anomaly electricity behavior detection model based on the highway network. With minimal manual tuning, the model employs convolutional operations and regularization dropout techniques to enhance learning of normal electricity usage behaviors. Achieving a 96.6% accuracy on publicly available electricity consumption datasets, it significantly outperforms other baseline models in evaluation metrics. © 2024 ACM.

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

A parameter optimization method of multi-layer nested slit resonator for the converter transformer noise in high voltage direct current converter station

引用

Noise and Vibration Worldwide 2024年第1-2期55卷 62-67页

作者： Li, Li Sun, Wei Li, Linyong Chu, Zhigang Key Laboratory of Environmental Protection of Guangdong Power Grid Co. Ltd. Electric Power Research Institute of Guangdong Power Grid Co. Ltd. Guangzhou China College of Mechanical and Vehicle Engineering Chongqing University Chongqing China

We propose a parameter optimization method of multi-layer nested slit resonator (MNSR) for the converter transformer noise in a high voltage direct current (HVDC) converter station. With the optimization objective of achieving quasi-perfect sound absorption at the target frequencies and the structural parameters of MNSR as the optimization variables, the optimization model of the structural parameters of MNSR is established and then solved by the sequential quadratic programming algorithm (SQP). The theoretical and simulation results of the four validation cases show that the optimized MNSR can achieve quasi-perfect sound absorption at all target frequencies, which is consistent with the optimization objective. The parameter optimization design method provides an efficient method to design a dual-frequency quasi-perfect sound absorber for the converter transformer noise. © The Author(s) 2023.

关键词： Acoustic wave absorption

来源：评论

学校读者我要写书评

暂无评论

Multi-Frequency Impedance Measurement Method for DC Link Capacitor of Flexible DC Converter Valve 7

Multi-Frequency Impedance Measurement Method for DC Link Cap...

引用

7th IEEE International Electrical and Energy Conference, CIEEC 2024

作者： Li, Ying Yao, Cheng Ma, Kai Meng, Shen Tan, Lingqi Hu, Taishan Li, Xinwei Xiong, Yan Jiang, Taolian Electric Power Research Institute Guangdong Power Grid Co. Ltd. Guangdong Provincial Key Laboratory of Electric Power Equipment Reliability Guangzhou China Electric Power Research Institute State Key Laboratory of Hvdc China Southern Power Grid Guangzhou China

ISBN: (纸本)9798350359558

The DC Link capacitor is a crucial component of the sub-module in the flexible DC converter valve. Its electrical performance directly impacts the operation of the valve. Due to the complex operating conditions of the converter valve, the capacitor is susceptible to deterioration during long-term operation, leading to changes in its electrical parameters. Therefore, it is essential to find an effective multi-frequency impedance measurement method for the capacitor. This paper presents the construction of three capacitor electrical parameter measurement test platforms. The test results indicate that the offline measurement method, which uses high-voltage bridge measurement, has high accuracy. On the other hand, the online monitoring algorithm has lower cost and higher flexibility. These findings provide a research basis for the capacitor condition monitoring method. © 2024 IEEE.

关键词： Deterioration

来源：评论

学校读者我要写书评

暂无评论

Optimal Planning of IDR-integrated Electricity-heat Systems Considering Techno-economic and Carbon Emission Issues

引用

CSEE Journal of power and Energy Systems 2023年第6期9卷 2344-2355页

作者： Bo Zeng Yu Liu Yangfan Luo Hao Xu Luqman Ahmed the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China the State Grid Kaifeng Power Supply Company Kaifeng 475000China

This study presents an optimal electricity-heat system(EHS)planning framework to promote the accommodation of wind power while considering technical,economic and environmental *** this end,integrated demand response(IDR)is introduced as a flexibility resource to complement the inherent fluctuation of renewable energy sources and modeled by using price elasticity *** the timing transferring and energy substitution potentials are considered in the proposed IDR *** the effect of IDR into the EHS planning model,a two-stage stochastic programming model can be devised,in which the optimal EHS configuration design and associated operation control techniques are found simultaneously to minimize the system’s total economic and carbon-emission costs over the planning *** multi-scale uncertainties arising from both long-term demand growth and operation-level variability of renewables/load demands are captured collectively by using a scenario-based *** suggested planning approach is illustrated using a real EHS test case and the results show that it is effective in practical applications.

关键词： Electricity-heat system(EHS) carbon emission wind power multi-scale uncertainties stochastic programming

来源：评论

学校读者我要写书评

暂无评论

A Networked Method Applied to Sensitivity Analysis of a VSG controlled BESS System 5

A Networked Method Applied to Sensitivity Analysis of a VSG ...

引用

5th International Conference on power Engineering, ICPE 2024

作者： Sun, Zhiyuan Luo, Chao Zheng, Kun Zhu, Yihua Yu, Jiawei Guangxi Power Grid Electric Power Research Institute China S. Power Grid Guangxi Key Laboratory of Intelligent Control and Maintenance of Power Equipment Nanning China Electric Power Research Institute China Southern Power Grid State Key Laboratory of Hvdc Guang zhou China National Energy Power Grid Technology R&d Centre Guang zhou China Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System Guang zhou China

ISBN: (纸本)9798331531140

The grid-forming battery energy storage system (BESS) plays important role in constructing new energy system. This paper presents a frequency domain modal-based stability analysis of virtual synchronous generator (VSG) controlled BESS. Both ac and dc side interactive dynamics of the grid-tied inverter system are considered, by establishing a hybrid ac/dc impedance network. Then, the frequency domain modal analysis (FMA) method for networked converter systems is applied to the BESS system, covering the eigen-sensitivity from the node level to parameter level. Using this method, key parameters that influence the BESS system's weakly/negative damping modes most can be better analyzed and identified. The analysis results are validated via the time-domain simulations. © 2024 IEEE.

关键词： Frequency domain analysis

来源：评论

学校读者我要写书评

暂无评论

Research on Lightning Protection Performance and Parameter Selection of Lightning Protection Insulator for ±500kV DC Transmission Line 8

Research on Lightning Protection Performance and Parameter S...

引用

8th International Conference on Smart grid and Smart Cities, ICSGSC 2024

作者： Shi, Xin Jiang, Zhenglong Fu, Zhiyao Xie, Pengkang Wang, Bowen Hu, Jianping State Grid Hunan electric Power State Key laboratory of Disaster Prevention and Reduction for Power Grid Changsha China

ISBN: (纸本)9798350377408

The lightning fault of the ± 500kV DC transmission line constitutes a significant proportion, and the situation regarding lightning protection is severe. Currently, there is limited research on the lightning characteristics of ± 500kV DC transmission lines after installing arresters or lightning protection insulators, as well as their performance with different parameters. This study takes the ± 500kV Jiangcheng DC transmission line as an example to calculate the maximum shielding failure current using the electrical geometry method. An electromagnetic transient simulation model of the transmission line is established to analyze and calculate the action characteristics of lightning protection insulators under shielding failure conditions. Additionally, this study calculates and analyzes the influence of ground inclination angle and parameter selection for lightning protection insulators on their shielding failure performance. The findings presented in this paper can serve as a reference for selecting appropriate parameters for lightning protection insulators. © 2024 IEEE.

关键词： Lightning arresters

来源：评论

学校读者我要写书评

暂无评论

A Detection of Metal Particles in Transformer Oil by the X-ray Fluorescence 11th

A Detection of Metal Particles in Transformer Oil by the X-r...

引用

11th Frontier Academic Forum of Electrical Engineering, FAFEE 2024

作者： Zhan, Hongsheng Cheng, Chuanhui Lang, Xianfeng Zhao, Tibin Su, Yinggan Fu, Mingli Pu, Jinyu Xishuangbanna Power Grid of Yunnan Power Grid Xishuangbanna666199 China Electric Power Research Institute China Southern Power Grid Guangzhou510663 China United Laboratory of Advanced Electrical Materials and Equipment Support Technology CSG Guangzhou510663 China State Key Laboratory of HVDC CSG Guangzhou510663 China

ISBN: (纸本)9789819788316

Metal particle is one of the critical impurities, which has a negative impact on the electric strength of transformer oil. It is essential to detect metal particles in transformer oil to improve the reliability of transformers. However, current detection techniques for metal particle are off-line. The X-ray fluorescence analysis, a promising on-line technique for detection of metal particles has attracted attentions. In this study, the X-ray fluorescence analysis was applied to the detection of metal particles in transformer oil samples, and was compared with the inductively coupled plasma optical emission spectroscopy method (ICP-OES) which is recommended by national standard. Transformer oil samples with various mass fractions (0.1 ~ 100 ppm) millimeter-level iron and copper metal particles were prepared to verify the proposed method. The standard deviation of the results by the X-ray fluorescence exceeds 20% in extremely low concentration (0.05 ppm). And it is also showed that the detection result errors of the X-ray fluorescence and ICP-OES are comparable. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Fluorescence

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：