2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)最新文献_第2页

Gas evolution of nickel, stainless steel 316 and titanium anodes in vacuum sealed tubes 真空密封管中镍、不锈钢、316和钛阳极的气体演化

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518724

J. Parson, J. Dickens, J. Walter, A. Neuber, M. Kristiansen

引用次数: 13

Real-time insulation status assessment based on standard deviation for underground cable joints 基于标准差的地下电缆接头绝缘状态实时评估

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518817

R. Wu, Chien-Kuo Chang

{"title":"Real-time insulation status assessment based on standard deviation for underground cable joints","authors":"R. Wu, Chien-Kuo Chang","doi":"10.1109/IPMHVC.2012.6518817","DOIUrl":"https://doi.org/10.1109/IPMHVC.2012.6518817","url":null,"abstract":"The purpose of this paper is to analyze the relationship between the partial discharge and insulation status of underground cable joint. The insulation diagnosis mechanism is established by the characteristics of the probability distribution of discharge parameters. The data process of partial discharge consists of filtering and reduction, parameter extraction and parameter estimation of probability model. Four probability models were utilized, such as, Normal distribution, Log-Normal distribution, Weibull distribution and Gamma distribution. The failure of the goodness-of-fit test accompanied with huge variation of discharge parameters and striking distribution parameters. These outliers might imply that a structural variation might happen and could be used to analyze the insulation mechanism. Finally, the Normal distribution parameter for the weight of discharge region is chosen to be a feature. The threshold of insulation status is the upper limit of confidence level calculated by three standard deviations. The result shows that the outliers appeared at two sites which divide deterioration of the insulation into tree partitions, such as initial term, midterm, and final term.","PeriodicalId":228441,"journal":{"name":"2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)","volume":"238 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114087884","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: 4

Method of current transformer metrological properties estimation for transformation of distorted currents 畸变电流变换的电流互感器计量特性估计方法

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518847

M. Kaczmarek

引用次数: 6

Solid state fast transition kickers for accelerator applications 用于加速器应用的固态快速过渡踢脚器

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518747

H. Sanders, S. Glidden, D. Warnow, C. Dunham

引用次数: 0

X-ray backlighting of the initial stage of single-wire and multi-wire Z-pinch x射线背光初期的单线和多线z夹紧

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518809

Xinlei Zhu, Ran Zhang, Haiyun Luo, Shen Zhao, X. Zou, Xinxin Wang

引用次数: 3

Design of an automated test bed for experimental Si and SiC SGTO devices 实验用Si和SiC SGTO器件自动化试验台的设计

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518751

K. Lawson, S. Lacouture, S. Bayne, M. Giesselmann, T. Vollmer, H. O’Brien, C. Scozzie, A. Ogunniyi

{"title":"Design of an automated test bed for experimental Si and SiC SGTO devices","authors":"K. Lawson, S. Lacouture, S. Bayne, M. Giesselmann, T. Vollmer, H. O’Brien, C. Scozzie, A. Ogunniyi","doi":"10.1109/IPMHVC.2012.6518751","DOIUrl":"https://doi.org/10.1109/IPMHVC.2012.6518751","url":null,"abstract":"In a collaborative effort between Army Research Lab (ARL) and Texas Tech University's center for Pulsed Power and Power Electronics (P3E) lab, a high power, high energy test bed meant to characterize experimental Si and SiC Super Gate Turn Off (SGTO) devices was designed and built. The system was engineered to run the devices through an arbitrary number of test cycles while recording all pertinent data automatically. Test parameters are set through a windows GUI which communicates with a microprocessor - based control system that orchestrates timing and settings of each subsystem as well as acquiring voltage and current waveforms with high speed ADCs operating simultaneously in parallel. The test waveform itself is generated by a Pulse Forming Network (PFN) which accurately controls rise time, fall time and pulse width. The PFN is charged by a Rapid Capacitor Charger (RCC) system designed at the P3E lab that is capable of 10 kW and allows precise charge voltage levels to be set. Waveforms are acquired through isolated probes specifically designed to capture desired signals even in the presence of a large bias voltages.","PeriodicalId":228441,"journal":{"name":"2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131781418","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

Characteristic of cavitation bubbles and shock waves generated by pulsed electric discharges with different voltages 不同电压脉冲放电产生的空化气泡和激波特性

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518690

D. Oshita, S. Hosseini, Y. Okuka, Y. Miyamoto, H. Akiyama

{"title":"Characteristic of cavitation bubbles and shock waves generated by pulsed electric discharges with different voltages","authors":"D. Oshita, S. Hosseini, Y. Okuka, Y. Miyamoto, H. Akiyama","doi":"10.1109/IPMHVC.2012.6518690","DOIUrl":"https://doi.org/10.1109/IPMHVC.2012.6518690","url":null,"abstract":"In the cases that underwater pulsed electric discharges should be applied with high repetition rates, such as medical applications, characteristic of the generated cavitation bubble and shock waves should be considered. In our previous research, underwater shock waves focusing by pulsed discharges using a magnetic pulse compression unit (MPC) were studied. In this paper, effects of pulsed electric discharge parameters, like voltage amplitude and pulse duration, on the characteristic of cavitation bubbles and shock waves were visualized and analyzed. Pulsed discharge shock waves and cavitations were produced by using a MPC unit. The water was degassed by a vacuum pump in order to eliminate the influence of dissolved air. In order to prevent electrical discharge oscillation and to increase the electrode life time, degassed saline electrolyte was used. The whole sequences of shock wave generation by discharge plasma, bubble growth, bubble collapse, and secondary shock wave generation near the electrode were visualized by time-resolved high speed shadowgraph method. Using the visualization results and image analysis, radius and collapse time of cavitation bubbles and their shock waves pressures were evaluated.","PeriodicalId":228441,"journal":{"name":"2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129378883","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

Design and test of induction voltage adder driven by 3 Blumlein PFLs 由3个Blumlein PFLs驱动的感应电压加法器的设计与测试

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518830

H. Heo, O. Choi, S. Nam, J. W. Yang, J. So, H. Ryu, J. Won

引用次数: 5

Test stand for shock compression of gas-impregnated solids 气体浸渍固体的冲击压缩试验台

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518850

D. A. Rice, S. Kovaleski, J. Gahl

引用次数: 0

A novel GSSA method for modeling of controllers in the multi-converter system of an Advanced Aircraft Electric Power System (AAEPS) 先进飞机电力系统多变换器控制器建模的GSSA新方法

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC) Pub Date : 2012-06-03 DOI: 10.1109/IPMHVC.2012.6518865

H. E. Darkhaneh, J. Gatabi, H. El-kishky

{"title":"A novel GSSA method for modeling of controllers in the multi-converter system of an Advanced Aircraft Electric Power System (AAEPS)","authors":"H. E. Darkhaneh, J. Gatabi, H. El-kishky","doi":"10.1109/IPMHVC.2012.6518865","DOIUrl":"https://doi.org/10.1109/IPMHVC.2012.6518865","url":null,"abstract":"This article presents a comprehensive set of Generalized State Space Averaging (GSSA) models for the generation of non-linear control signals in the multi-converter system of an Advanced Aircraft Electric Power System (AAEPS). Due to the switching nature and variation in loading configuration in the aircraft system under study, the pulse-width modulation (PWM) control signals demonstrate inherent time-varying behaviors to keep the system's operation within IEEE/military standard limits. Therefore, the proposed technique can be employed to derive the key features of the non-linear switching signals under investigation, hence, can be treated as an effective method of the feedback control signals approximation. Finally, the GSSA approximated signals corresponding to the PWM switching function of the constant power (CP), constant voltage (CV) and constant current (CC) buck-converters in the DC power electronics system of Boeing 767 aircraft are derived, and the simulation results are obtained from a study model developed in PSIM9 environment. Also, the accuracy of obtained results from GSSA model is verified by developing a study model in PSIM9 environment.","PeriodicalId":228441,"journal":{"name":"2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133457812","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: 14