Journal of Physics: Conference Series最新文献_第4页

An Identity Authentication Method Of Configuration Terminal Based On Audio Feature Recognition In Smart Distribution Network 智能配电网络中基于音频特征识别的配置终端身份验证方法

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2774/1/012027

Hong Qiao, Kaiyi Wang, Yanbo Long, TanLong Huang, Xianyong Xu, Shuai Liu

{"title":"An Identity Authentication Method Of Configuration Terminal Based On Audio Feature Recognition In Smart Distribution Network","authors":"Hong Qiao, Kaiyi Wang, Yanbo Long, TanLong Huang, Xianyong Xu, Shuai Liu","doi":"10.1088/1742-6596/2774/1/012027","DOIUrl":"https://doi.org/10.1088/1742-6596/2774/1/012027","url":null,"abstract":"\u0000 A smart distribution network contains a large number of data acquisition terminals used to monitor the operation status of the distribution network and control the operation parameters, some of which are located in outdoor and other unsafe environments. If the attacker operates and configures the distribution network terminal by pretending to be a legitimate configuration device, it will become a springboard to infiltrate the main station of the internal network or misreport fault information, which may result in the leakage of sensitive data and even destroy the running state of the equipment. Identity authentication is the first line of defense to ensure the safe and stable operation of equipment. At present, the commonly used identity authentication technologies such as certificate authentication and key authentication have certain security vulnerabilities at different levels, which make it increasingly difficult to prevent the ever-changing network attack technology. According to the characteristics of physical unclonable facility (PUF), which is used to describe the hidden characteristics of the device and is directly related to the hardware, this paper proposes a method to authenticate the validity of the power distribution network configuration terminal based on the audio feature, which collects the frequency response characteristics of the hardware from the audio sensor of the configuration device as the identification information to identify the validity of the configuration device.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"2002 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141851988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application Research of Multi-Model Fusion Technology in Real-Time Prediction of Dispatch Order Operation Duration 多模型融合技术在调度令运行时长实时预测中的应用研究

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2774/1/012025

ShouTian Zhang, Zhengning Pang, WeiLong Yan, JingXian Qi, Jian Yang, FuQuan Zhao

{"title":"Application Research of Multi-Model Fusion Technology in Real-Time Prediction of Dispatch Order Operation Duration","authors":"ShouTian Zhang, Zhengning Pang, WeiLong Yan, JingXian Qi, Jian Yang, FuQuan Zhao","doi":"10.1088/1742-6596/2774/1/012025","DOIUrl":"https://doi.org/10.1088/1742-6596/2774/1/012025","url":null,"abstract":"\u0000 Power grid dispatching is a challenging task that requires dispatchers to be forward-looking in multiple aspects, with the operation of dispatch orders being one of its core tasks. Currently, the prediction of dispatch order duration relies mainly on the manual maintenance of experienced dispatchers, which is not only labor-intensive but also demands a high level of expertise. As a result, the effectiveness of existing systems in this regard is difficult to guarantee. However, due to the complexity of business scenarios, there has been no deployment of systems based on artificial intelligence algorithms. To address this issue, this paper employs multi-model fusion technology to achieve real-time prediction of dispatch order operation duration and has deployed it in Zhejiang Electric Power Company. The main contribution of this paper lies in proposing a strategy to solve the problem of regression prediction after differentiating feature fusion. Additionally, the paper provides a detailed description of how the relevant algorithms were deployed in Zhejiang Electric Power Company and presents the results of practical applications, demonstrating the effectiveness and practicality of the proposed solution.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141853514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the mineralogical composition and origin analysis of black jadeite 黑翡翠的矿物成分调查和产地分析

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2790/1/012003

Fenghui Guo, Wei Xu, Minghui Tang, Ziqi Zhang, Zean Chen, Hao Lu

{"title":"Investigation of the mineralogical composition and origin analysis of black jadeite","authors":"Fenghui Guo, Wei Xu, Minghui Tang, Ziqi Zhang, Zean Chen, Hao Lu","doi":"10.1088/1742-6596/2790/1/012003","DOIUrl":"https://doi.org/10.1088/1742-6596/2790/1/012003","url":null,"abstract":"\u0000 Analyzing black jadeite variety is helpful not only to distinguish black jadeite from the common omphacite jadeite, but also to learn the origin of jadeite by studying these special specimens. The basic gemological properties, mineral composition, structural characteristics, spectroscopic features, and color-causing mechanisms of black jadeite were studied through testing methods such as Polarizing microscope, X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy. Recent studies have confirmed the distinct crystalloblastic textures of black jadeite—namely columnar, granular, and fibrous—alongside its characteristic fracture structures. This research further identifies the presence of secondary minerals, primarily opaque black impurities consisting of a graphite and disordered graphite mixture, as revealed by Raman spectroscopy and X-ray diffraction analyses. These analyses have elucidated that the variable distribution of graphite mixtures contributes to differing degrees of light absorption, thereby forming various shades of black, a critical factor in the gemstone’s coloration. This study suggests that these carbonaceous materials are a byproduct of the carbonization of organic matter within metamorphic fluids, subsequently forming dispersed graphite structures within the mineral matrix and its fractures, indicative of multi-stage metamorphic processes. Additionally, the identification of graphite supports the theory that jadeite’s protolith originated from the subduction processes of the Neotethys Ocean, accompanied by metasomatism and high-pressure metamorphism of olivinite.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"12 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141853691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multichannel SiPM test readout system for gamma ray measurements with monolithic inorganic CeBr3 使用整体无机 CeBr3 进行伽马射线测量的多通道 SiPM 测试读出系统

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2794/1/012006

Veronika Asova, Galin Bistrev, V. Buchakchiev, V. Kozhuharov

引用次数: 0

On propagation of gradual and impulsive Coronal Mass Ejections (CMEs) 关于渐进式和脉冲式日冕物质抛射（CME）的传播

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2793/1/012009

N. Mohamad Ansor, Z. Hamidi, N. Shariff

{"title":"On propagation of gradual and impulsive Coronal Mass Ejections (CMEs)","authors":"N. Mohamad Ansor, Z. Hamidi, N. Shariff","doi":"10.1088/1742-6596/2793/1/012009","DOIUrl":"https://doi.org/10.1088/1742-6596/2793/1/012009","url":null,"abstract":"\u0000 Coronal Mass Ejection (CME) is a significant solar activity that releases magnetic field and plasma out of the corona and they are known as the main driver of space weather. In general, CMEs are characterized as gradual and impulsive based on their kinematic properties that include velocity and acceleration. This paper is aimed to analyze the differences in behaviour of gradual and impulsive CME based on recent events (dates) in solar cycle 25 and to justify their characterizations that have been demonstrated a while ago. Data analysis is conducted by studying the height-time, height-velocity and height-acceleration profiles for each event, based on SOHO LASCO Catalogue. Results show that impulsive CME travels a lot faster than gradual CME, with average velocity of 1239 km/s and 503.6 km/s respectively. It is believed that M6.7 flare accompanying the impulsive CME has been the main reason to high velocity due to its ability to contribute more heat energy and enhances the energy conversion during magnetic reconnection. Deceleration is observed in impulsive CME that is caused by the loss of momentum as interacting with the background solar wind and small-scale acceleration is manifested by gradual CME all through the propagation.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141842337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Voltage Compensation Method for Multi-feeder Distribution Networks Based on a UPQC with PV Injection 基于光伏注入式 UPQC 的多馈线配电网络电压补偿方法

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2774/1/012019

Xielin Shen, Bo Yuan, Weiwen Peng, Hua Ye, Tiantian Dong

引用次数: 0

Study on Breakdown Characteristics and Attenuation Characteristics of Air Mixed Gas 空气混合气体的击穿特性和衰减特性研究

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2774/1/012092

SiNan Yu, Xin Lin, Bo Zhang, YanZhe Zhao

{"title":"Study on Breakdown Characteristics and Attenuation Characteristics of Air Mixed Gas","authors":"SiNan Yu, Xin Lin, Bo Zhang, YanZhe Zhao","doi":"10.1088/1742-6596/2774/1/012092","DOIUrl":"https://doi.org/10.1088/1742-6596/2774/1/012092","url":null,"abstract":"\u0000 Nowadays, the global demand for environmental protection and energy saving is getting higher and higher. In the past, SF6 gas was regarded as an environmentally unfriendly gas in the circuit breaker with SF6 gas as the insulating medium. In order to save energy and reduce emissions, this paper uses clean and environmentally friendly air as the arc extinguishing medium. The gas mixture studied contains N2, O2 and CO2. Through two approximate values of Boltzmann equation, we obtain the electron energy distribution function of air mixed gas under different electric field reduction conditions. By studying the changes of ionization and adsorption coefficients of particles under various collision conditions, we obtained the conversion breakdown field strength (E/N) Cr of air mixture. An arc attenuation model is built to characterize the arc attenuation characteristics using the prior transport characteristics as input. The arc attenuation process is broken down into three steps: heat recovery, pre-ignition, and arcing. All of these phases are determined by the changes in axial temperature and arc conductance over time. Analysis is done on the air and nitrogen thermal recovery and pre-dielectric recovery phases. This study explores the use of clean dielectrics to ensure optimum performance of primary equipment in the power system, based on current circumstances.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"73 S3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141844066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LQR controller design for portable power supply based on flyback converter 基于反激式转换器的便携式电源 LQR 控制器设计

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2797/1/012030

Bing Zou, Dehui He, Jianan Liang

{"title":"LQR controller design for portable power supply based on flyback converter","authors":"Bing Zou, Dehui He, Jianan Liang","doi":"10.1088/1742-6596/2797/1/012030","DOIUrl":"https://doi.org/10.1088/1742-6596/2797/1/012030","url":null,"abstract":"\u0000 The stability of the power repair equipment guarantees the reliability of the repair of electrical equipment. The following problems exist in the power supply of the emergency equipment: the load equipment randomly cuts in the power supply network; load equipment requires fast dynamic performance of the power supply. This challenges the stability of the portable power supply with the Flyback converter as the core. In this paper, an optimal feedback control strategy based on linear quadratic regulator (LQR) theory is proposed to improve the dynamic and steady-state performance of the Flyback converter. First, the state-averaged space model of the Flyback is derived and established. Second, an output voltage feedback integral controller is introduced to eliminate the steady-state error of the output voltage. Next, according to the LQR optimal control theory, the control model of the Flyback converter has been established, and the parameter design of the controller has been carried out by obtaining the optimal feedback gain matrix of the system. Finally, the simulation models are implemented with an output power of 120 W and a switching frequency of 50 kHz. The simulation results prove that the LQR controller provides superior performance than the traditional PI controller.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"35 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141844408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Grid-connected New Energy Generation and its Influence on Power Supply Quality based on Smart Grid 基于智能电网的并网新能源发电及其对供电质量的影响

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2795/1/012005

Canhao Zhou, Xiuqi Lin, Chunquan Fu

{"title":"Grid-connected New Energy Generation and its Influence on Power Supply Quality based on Smart Grid","authors":"Canhao Zhou, Xiuqi Lin, Chunquan Fu","doi":"10.1088/1742-6596/2795/1/012005","DOIUrl":"https://doi.org/10.1088/1742-6596/2795/1/012005","url":null,"abstract":"\u0000 With the large-scale access of NE(new energy) sources, the PS(power system) has presented a new pattern of multi-source coordinated and complementary PG(power generation), but the existing capacity benefit and absorptive capacity evaluation methods have not considered the impact of the coordinated operation of wind, solar, water and fire power sources on the time series load curve, and there is also a lack of a NE grid-connected capacity benefit and absorptive capacity evaluation method that can take into account the generation output characteristics of various types of power sources and multi-energy complementary characteristics. This paper analyzes the problems existing in traditional research, and analyzes the impact of NEG(new energy generation) on power supply quality based on smart grid. In addition, the capacity benefit and absorptive capacity evaluation methods of large-scale NE grid-connected are deeply studied in this paper, and some innovative research results have been obtained. Therefore, the method proposed in this paper can be used to promote smart grid to have a positive impact on power supply quality.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"19 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141844936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the Application of Cloud Edge Collaboration Architecture in Power System 云边缘协作架构在电力系统中的应用研究

Journal of Physics: Conference Series Pub Date : 2024-07-01 DOI: 10.1088/1742-6596/2795/1/012022

Xin Liu, Yijun Zhong, Cheng Bi, Feng Jiao, Jun Xu

{"title":"Research on the Application of Cloud Edge Collaboration Architecture in Power System","authors":"Xin Liu, Yijun Zhong, Cheng Bi, Feng Jiao, Jun Xu","doi":"10.1088/1742-6596/2795/1/012022","DOIUrl":"https://doi.org/10.1088/1742-6596/2795/1/012022","url":null,"abstract":"\u0000 With the increasing demand for electricity and the wide use of renewable energy, the power system is facing higher complexity and challenges. In order to meet these challenges, cloud-side collaborative architecture has become an innovative solution with great potential. Firstly, this paper discusses the basic concept of cloud-side collaborative architecture, which integrates cloud computing, edge computing and terminal devices to achieve more efficient data processing and analysis. This architecture provides real-time data collection and monitoring capability for power system, which is helpful to realize better monitoring and optimization of power system operation state. Secondly, this paper discusses the application fields of cloud-side collaborative architecture in power system in detail, including energy data collection and monitoring, smart grid management, predictive maintenance and security and privacy protection, and emphasizes the importance of cloud-side collaborative architecture in power system modernization. Cloud-edge collaborative architecture provides new opportunities and solutions for the intelligence, sustainability and security of power systems, but it also needs to overcome some technical and security challenges.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141844951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0