2021 IEEE Pulsed Power Conference (PPC)最新文献_第2页

Classical Nonlinear Compton Scattering with Strong Bessel Laser Beams 经典非线性康普顿散射与强贝塞尔激光束

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733051

H. Nieto-Chaupis

引用次数: 1

Evaluation of Liquid Dielectrics to Improve Spiral Generator Lifetimes 液体介质对提高螺旋发电机寿命的评价

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733136

I. Cohen, E. Glynn, A. King, Z. Roberts, M. Heffernan

{"title":"Evaluation of Liquid Dielectrics to Improve Spiral Generator Lifetimes","authors":"I. Cohen, E. Glynn, A. King, Z. Roberts, M. Heffernan","doi":"10.1109/PPC40517.2021.9733136","DOIUrl":"https://doi.org/10.1109/PPC40517.2021.9733136","url":null,"abstract":"Spiral generators can be used to generate high-voltage pulses on the order of singles to hundreds of nanoseconds with a single switch. Their compact design makes them attractive for high-voltage pulse generation in volume and weight sensitive applications, but it also makes them susceptible to dielectric breakdown issues at higher input and output voltages. Previous work has revealed that streamer propagation and dielectric overstress are the main culprits in these failures. This paper explores using liquid dielectrics to give a spiral generator self-healing capabilities, thereby extending the lifetime of the generator. Three different coil manufacturing techniques are evaluated to compensate for the lack of mechanical structure resulting from the liquid dielectrics. Electrical characteristics of the spiral generator are calculated and improvements to traditional calculations are suggested for more accurate estimations. These characteristics are validated through benchtop testing with a frequency response analyzer. Operation of a 4-turn liquid dielectric spiral generator is experimentally demonstrated to step up 5.75 kV input voltage to 28.7 kV of output voltage (62% voltage efficiency). Commentary on the self-healing capabilities of the dielectric and viability of this type of design is presented.","PeriodicalId":307571,"journal":{"name":"2021 IEEE Pulsed Power Conference (PPC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116741817","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: 3

Electromagnetic Launcher Speed Control with a Multilevel Fast Triggering Time Algorithm (MFTTA) 基于多级快速触发时间算法(MFTTA)的电磁发射速度控制

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733121

Nail Tosun, H. Polat, O. Keysan

引用次数: 0

Muzzle Voltage Characteristics of Railguns 轨道炮炮口电压特性

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.36227/techrxiv.17211464.v1

Nail Tosun, Görkem Gülletutan, O. Keysan, Ferhat Yurdakonar, M. Karagöz

引用次数: 0

New Data From the Integration of the Los Alamos MK-X and R43S6 Flux Compression Generators 洛斯阿拉莫斯MK-X和R43S6通量压缩发生器集成的新数据

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733116

J. Goforth, V. Ahluwalia, E. Baca, A. Barnes, E. N. Brown, R. S. Bullis, C. Farnsworth, T. Foley, T. Gianakon, J. Gielata, J. Gunderson, B. Glover, D. Herrera, M. Jakulewicz, D. Jaramillo, I. Lopez-Pulliam, S. Madden, A. Novak, H. Oona, P. Rae, K. Rainey, R. Rettinger, C. Rousculp, D. Seitz, W. Shofner, R. Watt, J. L. Yoder, A. Johnson, A. Young

{"title":"New Data From the Integration of the Los Alamos MK-X and R43S6 Flux Compression Generators","authors":"J. Goforth, V. Ahluwalia, E. Baca, A. Barnes, E. N. Brown, R. S. Bullis, C. Farnsworth, T. Foley, T. Gianakon, J. Gielata, J. Gunderson, B. Glover, D. Herrera, M. Jakulewicz, D. Jaramillo, I. Lopez-Pulliam, S. Madden, A. Novak, H. Oona, P. Rae, K. Rainey, R. Rettinger, C. Rousculp, D. Seitz, W. Shofner, R. Watt, J. L. Yoder, A. Johnson, A. Young","doi":"10.1109/PPC40517.2021.9733116","DOIUrl":"https://doi.org/10.1109/PPC40517.2021.9733116","url":null,"abstract":"Los Alamos National Laboratory has a long history of developing and fielding high explosive pulsed power (HEPP) components and systems. In recent years, the Ranchero flux compression generator (FCG or generator) has been modified for improved high current performance, and a new helical flux compression generator (HFCG), the MK-X, has been designed to provide higher initial flux for Ranchero FCGs than can be achieved with the existing capacitor bank at Los Alamos HEPP test facilities. Integrating these two FCGs into a system is the focus of current development, and the first full system test has been performed. The system consists of a MK-X coupled efficiently to an R43S6 FCG with an exploratory pulse forming network (PFN) connecting the FCGs to the load. \"R43S6\" has become the shorthand designation for a Ranchero module with a 43 cm coaxial section and a Swooped output using a 6 inch diameter coaxial high explosive charge. The goal is to deliver ~50 MA to physics loads on microsecond time scales, and the following material illuminates the design philosophy and summarizes the outcome of the discussions and tests. Analysis of test data is still in progress, and a preliminary synopsis of results is given. Details of our PFN work are given by Gianakon [1] in this conference.","PeriodicalId":307571,"journal":{"name":"2021 IEEE Pulsed Power Conference (PPC)","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127493790","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

High-Voltage Silicon Carbide Thyristors on N-Doped Epi for Pulsed Power 脉冲电源用掺n外延的高压碳化硅晶闸管

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733054

H. O’Brien, A. Ogunniyi, S. Ryu, T. Tsoi, S. Bayne

{"title":"High-Voltage Silicon Carbide Thyristors on N-Doped Epi for Pulsed Power","authors":"H. O’Brien, A. Ogunniyi, S. Ryu, T. Tsoi, S. Bayne","doi":"10.1109/PPC40517.2021.9733054","DOIUrl":"https://doi.org/10.1109/PPC40517.2021.9733054","url":null,"abstract":"The Army Research Laboratory (ARL) has funded the development of high-voltage silicon carbide (SiC) thyristors and diodes for pulsed power switching, culminating in the novel 1.0 cm2, 15-kV SiC thyristor with n-type doping in the drift layer. N-type thyristors have been predicted to achieve faster switching speeds and lower switching losses, but were only recently realized following the development of novel fabrication techniques. These devices are targeted to reduce volume and increase reliability of pulsed switches in high-energy systems. ARL and Texas Tech University characterized the first fabrication lot of these devices for high-voltage DC-blocking capability (<1 µA leakage at 15 kV), optimal turn-on controls (4 A gate pulse), and on-state resistance at high current densities (up to 3 kA/cm2). This paper presents recent analysis of the turn-on speed and dI/dt capability for low-kHz pulse repetition of the n-type SiC thyristors as compared to previously reported 15-kV p-doped SiC thyristors. The current through the n-thyristor peaks 50 ns earlier, reaches 10% higher amplitude, and has significantly faster dI/dt as compared to the similarly designed p-thyristor.","PeriodicalId":307571,"journal":{"name":"2021 IEEE Pulsed Power Conference (PPC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126781400","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: 1

Mega-volt impedance-matched Marx 兆伏阻抗匹配马克思

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733131

B. Guegan, F. Bayol, David Arnal, P. Mouly

引用次数: 1

Investigating the Effects of Non-Linear Loads on Generator Sets 研究非线性负荷对发电机组的影响

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733138

José Rodríguez, F. Salcedo, S. Bayne

{"title":"Investigating the Effects of Non-Linear Loads on Generator Sets","authors":"José Rodríguez, F. Salcedo, S. Bayne","doi":"10.1109/PPC40517.2021.9733138","DOIUrl":"https://doi.org/10.1109/PPC40517.2021.9733138","url":null,"abstract":"Non-linear loads have become more prevalent due to the increasing use of power electronics for power conditioning and regulation. The current harmonics generated from non-linear loads can cause long-term effects on generator sets, such as the degradation of their lifetime due to higher operating temperatures and component failures due to high current transients. A testbed was developed to run a 3-kW military tactical generator set under non-linear loads. The 3-kW generator set includes a permanent magnet alternator (PMA) and a power electronic converter to deliver a 120VAC/240VAC output at 60 Hz. A range of non-linear loads was developed to create several load profiles for the generator set. The generator set was tested in four-hour and two-hour intervals for several weeks under different load profiles to stress its alternator and internal power electronics. In addition, several measurements were taken during testing, such as the output power, output voltage and current, and stator winding temperature. The collected data and testing suggest that the power electronics converter is more susceptible to the current harmonics than the PMA. These issues can result in premature failures and overall degradation of the lifetime of the generator set.","PeriodicalId":307571,"journal":{"name":"2021 IEEE Pulsed Power Conference (PPC)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126443641","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

An IGCT Electrical-thermal Unified Model Suitable for Simulation Software 适用于仿真软件的IGCT电热统一模型

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733119

Tao Chen, P. Fu, Liansheng Huang, Xiaojiao Chen, Shiying He, Zhengshang Wang

{"title":"An IGCT Electrical-thermal Unified Model Suitable for Simulation Software","authors":"Tao Chen, P. Fu, Liansheng Huang, Xiaojiao Chen, Shiying He, Zhengshang Wang","doi":"10.1109/PPC40517.2021.9733119","DOIUrl":"https://doi.org/10.1109/PPC40517.2021.9733119","url":null,"abstract":"Integrated Gate Commutated Thyristor (IGCT) is the core device of a new magnetic fusion power supply for CRAFT, which is very important to establish an accurate, suitable, and effective device model. In order to establish an electric-thermal unified model (ETUM) suitable for the simulation system, this paper analyzes the process of carrier motion in the process of IGCT turning on and off through the semiconductor mechanism of IGCT. The structure of the electrical model and the calculation method of related parameters are obtained by fitting the mathematical equations. Using standard passive components such as resistance, capacitance, inductance, and an accurate Bipolar Junction Transistor (BJT) model, converting the physical model to the electrical model can be realized. At the same time, because the physical model contains temperature parameters, compared with the traditional IGCT model, this model combines the thermal model with the electrical model, which makes the model unified. In this paper, the 4000A/4500V IGCT power device in ABB is taken as an example to verify the rationality of the electric-thermal model under different current and different temperatures through MATLAB/SIMULINK simulation and experimental test.","PeriodicalId":307571,"journal":{"name":"2021 IEEE Pulsed Power Conference (PPC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129756625","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

Operation Study of a Bench Compact Gyromagnetic NLTL 台式紧凑型陀螺磁NLTL的运行研究

2021 IEEE Pulsed Power Conference (PPC) Pub Date : 2021-12-12 DOI: 10.1109/PPC40517.2021.9733142

J. O. Rossi, F. S. Yamasaki, A. F. Teixeira, E. Rangel, A. Greco, J. Barroso, L. Neto, E. Schamiloglu

引用次数: 1