IEEE Transactions on Plasma Science最新文献_第4页

Effect of Curvature Radius on Distribution Characteristics of Streamer Discharge Channels Based on Fractal Theory

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-26 DOI: 10.1109/TPS.2025.3541030

Hui Jiang;Junting Qin;Ziyi Gong;Yufei Han;Jinyu Tang

{"title":"Effect of Curvature Radius on Distribution Characteristics of Streamer Discharge Channels Based on Fractal Theory","authors":"Hui Jiang;Junting Qin;Ziyi Gong;Yufei Han;Jinyu Tang","doi":"10.1109/TPS.2025.3541030","DOIUrl":"https://doi.org/10.1109/TPS.2025.3541030","url":null,"abstract":"In gas discharge, the phenomenon of discharge channel bifurcation is often observed. To further understand the characteristics of channel bifurcation, this article establishes a fractal medium breakdown simulation model for the air gap of the needle plate based on fractal theory. The spatial potential is solved using the finite element method (FEM), revealing the overall morphological changes of the channel and the distribution of the electric field during discharge. Additionally, the impact of changes in the curvature radius of the needle electrode on the discharge channel distribution characteristics is analyzed and verified through experiments. The results indicate that the formation of channel branches weakens the peak electric field, and this effect diminishes as the channel branching distance increases. When the radius of curvature of the tip ranges from 50 to <inline-formula> <tex-math>$200~mu $ </tex-math></inline-formula>m, a larger radius results in a lower electric field in the channel, a wider distribution of channel branches, an increased number of branches, and a higher fractal dimension. Conversely, when the radius of curvature of the tip ranges from 200 to <inline-formula> <tex-math>$500~mu $ </tex-math></inline-formula>m, a larger radius leads to an opposite trend in the discharge channel behavior, with a decreased fractal dimension.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"53 5","pages":"863-870"},"PeriodicalIF":1.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation Study of Effective Ways to Improve the Emission Performance of Channel-Type Multipacting Cathode 提高沟道型多阴极发射性能有效途径的仿真研究

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-26 DOI: 10.1109/TPS.2025.3543826

Lian Wang;Yuxin Hao;Zhengqin Zhao;Qingxiang Liu;Yongliang Tang

引用次数: 0

Design of a Novel V-Dot Coaxial Pulse Probe With Wideband 0.01–1 GHz 设计具有 0.01-1 GHz 宽带的新型 V 点同轴脉冲探头

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-26 DOI: 10.1109/TPS.2025.3525707

Wenbo Xu;Liang Yu;Jiuxin Ma;Biao Hu;Chenzhi Liu;Shoulong Dong;Chenguo Yao;Lijun Yang

引用次数: 0

Design and Optimization of Pulse Coil Structure for Electromagnetic Coil Launcher 电磁线圈发射器脉冲线圈结构设计与优化

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-26 DOI: 10.1109/TPS.2025.3529122

Guan Xiao Cun;Duolin Shi;Shao-Hua Guan;Lida Yuan;Yao Lu

引用次数: 0

Current Limiting Characteristics of the Novel Liquid Metal Current Limiter With Different Liquid Metal Level Heights

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-26 DOI: 10.1109/TPS.2024.3485628

Jinjin Li;Shanshuai Wang;Zhaoyu Ku;Huajun Dong;Xiongying Duan;Minfu Liao

{"title":"Current Limiting Characteristics of the Novel Liquid Metal Current Limiter With Different Liquid Metal Level Heights","authors":"Jinjin Li;Shanshuai Wang;Zhaoyu Ku;Huajun Dong;Xiongying Duan;Minfu Liao","doi":"10.1109/TPS.2024.3485628","DOIUrl":"https://doi.org/10.1109/TPS.2024.3485628","url":null,"abstract":"Liquid metal current limiter (LMCL) has the advantages of simple structure and automatic current limiting. It has become a new technology to limit short-circuit current in power system. In order to improve the performance of traditional insulation partition LMCL (ILMCL), a resistive partition LMCL (RLMCL) is designed. Specifically, the force on the liquid metal liquid column model is calculated, and the motion mechanism of the liquid metal self-shrink is clarified; furthermore, a mathematical model for the liquid metal self-shrink effect is established. Using the simulation software Fluent, the dynamic diagrams of liquid metal self-shrinking gas-liquid two-phase are obtained. Finally, the current limiting characteristics and the arc plasma dynamic process of the RLMCL with different liquid metal level heights are compared and analyzed by experiments. The results indicate that the liquid metal level height is a key factor affecting the liquid metal self-shrinking speed. Whether the liquid metal fills through-hole will change the way the liquid metal shrinks. Under the same current action, as the liquid metal level height increases, the starting current limiting time, liquid metal self-shrinking time, and current half-wave time of the RLMCL increase while the peak arc voltage and arcing time gradually decrease.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"53 5","pages":"1006-1016"},"PeriodicalIF":1.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Characterization of Arc Flash-Related Plasmas From Pulsed Power Supplies

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-26 DOI: 10.1109/TPS.2025.3547693

Nicolaus E. Jennings;David A. Wetz;Alexander N. Johnston;John M. Heinzel

{"title":"Experimental Characterization of Arc Flash-Related Plasmas From Pulsed Power Supplies","authors":"Nicolaus E. Jennings;David A. Wetz;Alexander N. Johnston;John M. Heinzel","doi":"10.1109/TPS.2025.3547693","DOIUrl":"https://doi.org/10.1109/TPS.2025.3547693","url":null,"abstract":"High-energy, fast rise time systems are widely used in applications such as electromagnetic launch systems, plasma generation, and particle accelerators. These systems rely on capacitor-based energy storage to rapidly deliver the stored energy exceeding many megajoules. At charge potentials of up to 8.5 kV, these pulsed power systems present challenging electrical safety hazards in the form of shock and arc flash. While the shock hazard is well-understood and manageable, the challenges posed from the arc flash hazard are not. Existing studies on arc flash primarily focus on ac systems leaving the energy dynamics poorly understood from pulsed power systems. While prior studies of these systems have characterized the pressure component, this work goes further to characterize the thermal energy, acoustic pressure, and visible radiant energy dispelled during 258 arc flash events with arc energies of 226 J–190 kJ. Measurements of thermal energy have been used to modify estimations from standards and in combination with measured acoustic pressure have been used to estimate safe approach distances for capacitor bank systems. These results provide the foundation for improving safety standards and protocols for high-energy pulsed power systems.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"53 5","pages":"996-1005"},"PeriodicalIF":1.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Square Fan-Shaped SSPPs and Its Application in Microwave Filters Design

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-26 DOI: 10.1109/TPS.2025.3550679

Baoping Ren;Wenlong Zhang;Chunhua Qin;Xuehui Guan

{"title":"Square Fan-Shaped SSPPs and Its Application in Microwave Filters Design","authors":"Baoping Ren;Wenlong Zhang;Chunhua Qin;Xuehui Guan","doi":"10.1109/TPS.2025.3550679","DOIUrl":"https://doi.org/10.1109/TPS.2025.3550679","url":null,"abstract":"In this article, a new type of square fan-shaped spoof surface plasmon polaritons (SSPPs) is proposed and applied to design compact microwave filters. Compared with rectangular-shaped SSPPs unit, the proposed square fan-shaped SSPPs unit has the lower asymptotic frequency of the fundamental mode (Mode0) in same periodic, enabling the design of compact SSPPs-based filter. Moreover, the frequency range of the high-order modes of the proposed SSPPs unit can be largely narrowed and the frequency band of the first-order mode (Mode1) approached nearly to Mode0, making it the possible not only in design of lowpass filter with ultrawide stopband by using Mode0 but also the dual-band filter by adopting the Mode0 and Mode1 simultaneously. First, a wide stopband lowpass filter is designed based on the Mode0 of the proposed double-side symmetric square fan-shaped SSPPs. The wide stopband is realized by the mutual stagger of the high-order modes of the transmission SSPPs and the transition SSPPs. By adjusting the size of the lower part of the proposed SSPPs unit, the double-side asymmetric square fan-shaped SSPPs unit is then obtained and the frequency range of the Mode1 can be regulated freely. Based on the double-side asymmetric SSPPs unit, a dual-band filter is designed. For verification, a well-designed lowpass filter and dual-band filter are fabricated and measured. The measured results agree well with the simulations, validating the proposed structure and design method.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"53 5","pages":"907-913"},"PeriodicalIF":1.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of X-Ray Irradiation on Properties of Insulating Materials X 射线辐照对绝缘材料性能的影响

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-25 DOI: 10.1109/TPS.2025.3549375

Guobao Zhang;Wei Yang;Weimin Huang;Zhengyang Wu;Lei Zhang;Xi Yang;Hui Tong;Cheng Zhang

{"title":"Effect of X-Ray Irradiation on Properties of Insulating Materials","authors":"Guobao Zhang;Wei Yang;Weimin Huang;Zhengyang Wu;Lei Zhang;Xi Yang;Hui Tong;Cheng Zhang","doi":"10.1109/TPS.2025.3549375","DOIUrl":"https://doi.org/10.1109/TPS.2025.3549375","url":null,"abstract":"X-ray digital imaging technology can be used for visualization and nondestructive detection of power equipment, which is widely used in defect determination and anomaly detection. However, when X-ray is used for defect detection of power equipment, it remains to be investigated whether X-ray irradiation will deteriorate the properties of insulating materials or not. In this study, four kinds of insulating materials that are commonly used in power equipment, including alumina (Al2O3), epoxy/alumina (EP/Al2O3) composite material, polyether ether ketone (PEEK), and polyimide (PI), are irradiated with high-penetration and high-dose X-rays. The effects of irradiation time and atmosphere on the properties of insulating materials were studied systematically. The results show that the crystalline structure of inorganic materials and the chemical structure of organic materials are basically unchanged after X-ray irradiation. In terms of insulation properties that include dielectric property, surface flashover voltage, surface potential decay, and volume resistivity, it turns out that the insulation performance of the insulating materials tends to deteriorate after X-ray irradiation, while the degree of degradation is extremely low. In addition, the results of surface potential decay of EP/Al2O3 show that the X-ray irradiation would accelerate the dissipation of surface charge, which is in favor of the safety of power insulation.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"53 4","pages":"562-570"},"PeriodicalIF":1.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study and Damage Analysis of a Magnetic Field-Regulated Enhanced Electromagnetic Launcher 磁场调节增强型电磁发射器的实验研究与损伤分析

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-25 DOI: 10.1109/TPS.2025.3541210

Yaxiong Tan;Chi Yang;Maerlan Reheman;Jian Li

{"title":"Experimental Study and Damage Analysis of a Magnetic Field-Regulated Enhanced Electromagnetic Launcher","authors":"Yaxiong Tan;Chi Yang;Maerlan Reheman;Jian Li","doi":"10.1109/TPS.2025.3541210","DOIUrl":"https://doi.org/10.1109/TPS.2025.3541210","url":null,"abstract":"Insufficient efficiency and transition ablation are the main problems of current electromagnetic launch device, which affect the launch performance and service life. Due to the structure of the electromagnetic launch device, common speed increasing method usually causes more severe armature-rail ablative damage. In this article, a magnetic field-regulated enhanced electromagnetic launch (EEL) was investigated through experiments, and the ablation of the device was analyzed as well. The magnetic field distribution is controlled through head and tail guidance. Achieved a significant synergistic enhancement in both launch speed and damage reduction. An experimental platform for magnetic field-regulated EEL was set up. Conduct experimental validation of conventional armature and enhanced armatures with rear-end guidance angles of 30° and 45°. Compared to the conventional armature, the speed of the enhanced armature increased by 31.9%. The armature-rail contact surface damage was significantly reduced. A study was conducted on the ablative damage of the armature under high-speed sliding friction. The tail of the conventional armature experienced severe melting, with its length reduced from 19 to 12 mm. There was no significant change in the length of the enhanced armature tails and the damage was significantly reduced. Changes in the armature-rail contact surface are analyzed based on muzzle voltage. Mechanisms for damage reduction under magnetic field regulation units are revealed. At <inline-formula> <tex-math>$t =2$ </tex-math></inline-formula> ms, the conventional armature experienced transition, while the enhanced armature showed no obvious transition during its movement.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"53 4","pages":"818-825"},"PeriodicalIF":1.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Single-Driver Marx Generator Based on Series-Connected Switches With High Synchronization 基于高同步串联开关的单驱动器马克思发生器

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2025-03-25 DOI: 10.1109/TPS.2025.3545266

Shoulong Dong;Haobo Yang;Sizhe Xiang;Lisheng Zhao;Qinyu Huang;Huangtong Luo;Chenguo Yao;Liang Yu

{"title":"A Single-Driver Marx Generator Based on Series-Connected Switches With High Synchronization","authors":"Shoulong Dong;Haobo Yang;Sizhe Xiang;Lisheng Zhao;Qinyu Huang;Huangtong Luo;Chenguo Yao;Liang Yu","doi":"10.1109/TPS.2025.3545266","DOIUrl":"https://doi.org/10.1109/TPS.2025.3545266","url":null,"abstract":"As the applications of pulse generators continue to develop in a variety of fields, so do the requirements for pulse generators. The development of pulse generators is facing many key issues, such as high-voltage drive isolation, compact design, and weight reduction. In this regard, a single-driver Marx generator (SDMG) based on series-connected switches (SCSs) is proposed in this article. The proposed SCS module improves the voltage withstand capability of each Marx stage while ensuring good synchronization of the switches, thus reducing the number of Marx stages. Moreover, in the whole Marx generator, only one switch needs to be triggered by the driver; the rest of the switches can be self-triggered by coupling capacitors. With the reduction in the drivers and Marx stages, the size and the cost of Marx circuits are significantly reduced. The working principle is first analyzed. Then, through the simulation, the proposed SCS module is verified to have a higher switching synchronization compared to the related topologies previously proposed. Finally, an SDMG prototype based on the SCS is developed. The output parameters of the SDMG are tested. The test result shows that the SDMG can output pulse with a voltage of 12 kV and a rise time of 69.5 ns. The pulsewidth can be flexibly adjusted from 200 to 1000 ns, and the size of the generator is very small, only <inline-formula> <tex-math>$13times 6times 2.5$ </tex-math></inline-formula> cm.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"53 4","pages":"478-486"},"PeriodicalIF":1.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0