Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242)最新文献_第2页

Characterization of capacitors for power circuit decoupling applications 电力电路去耦电容器的特性

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.730291

G. Venkataramanan

引用次数: 6

Design of a neuro-classifier/detector for Amtrak rail-road track operations 美铁铁路轨道运行的神经分类器/检测器设计

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.729801

A. Rubaai, R. Kotaru, R.H. Branch, A. Hussein

引用次数: 1

Successive imaging technique for field distribution around conductors above a two-layer earth 两层大地上导体周围场分布的连续成像技术

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.729886

Mazen Abdel-Salam, S. Abdel-Sattar, A. Ibrahim, M. Niel

引用次数: 2

Characteristics of a doubly salient-pole homopolar machine in a constant-power speed range 双凸极同极电机在恒功率转速范围内的特性

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.732399

N. Sugitani, A. Chiba, T. Fukao

引用次数: 5

Discrete time direct torque control of induction motors using back-EMF measurement 采用反电动势测量的异步电动机离散时间直接转矩控制

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.732335

J. Maes, J. Melkebeek

{"title":"Discrete time direct torque control of induction motors using back-EMF measurement","authors":"J. Maes, J. Melkebeek","doi":"10.1109/IAS.1998.732335","DOIUrl":"https://doi.org/10.1109/IAS.1998.732335","url":null,"abstract":"The authors present a fixed switching frequency pulse width modulated (PWM) inverter based induction motor direct torque control. The proposed method controls motor torque and stator flux amplitude and is developed in discrete time to allow implementation on microcontrollers or digital signal processors (DSP). The proposed control requires knowledge of a small number of induction motor parameters, viz only stator resistance and leakage inductance. The discrete time direct torque control (DTDTC) requires voltage and current measurements to calculate the back-EMF. Using the DTDTC dead beat control of motor torque and stator flux amplitude is approximated. The control method is not limited to a specific PWM voltage inverter; triangular wave or space vector modulation can be used. The effect of calculation delay is studied and a modified control method is proposed to take into account this calculation delay. A method to take into account the inverter current and voltage limits is proposed. The authors demonstrate the validity of the proposed method using simulation and experimental results.","PeriodicalId":321042,"journal":{"name":"Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129739419","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: 27

Experimental verification of dominant harmonic active filter (DHAF) for high power applications 大功率主谐波有源滤波器的实验验证

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.730326

Po-tai Cheng, Subhashish Bhattacharya, D. M. Divan

{"title":"Experimental verification of dominant harmonic active filter (DHAF) for high power applications","authors":"Po-tai Cheng, Subhashish Bhattacharya, D. M. Divan","doi":"10.1109/IAS.1998.730326","DOIUrl":"https://doi.org/10.1109/IAS.1998.730326","url":null,"abstract":"A synchronous reference frame (SRF) based controller for a dominant harmonic active filter (DHAF) system has been proposed previously by the authors (1996, 1998). The SRF controller is designed to achieve harmonic isolation at the dominant harmonic frequencies (such as the 5/sup th/ or the 7/sup th/) between supply and load. Such design allows implementation of the DHAF system by square-wave inverters switching at the 5/sup th/ and 7/sup th/ harmonic frequencies. Compared to the conventional active filter systems which require high switching frequency PWM inverters for implementation, the square-wave inverter based DHAF system is more viable and cost-effective for high power nonlinear load (10 MW and above) or cluster of nonlinear loads to meet the IEEE 519 harmonic standard. In this paper, a new feedforward command of the SRF controller is proposed to provide better dynamic performance. If the resonance of source impedance and passive filter bank occurs near the dominant 5/sup th/ or 7/sup th/ harmonic frequency, the amplification effect at the harmonic frequencies will cause severe distortion in the supply current. The improved feedforward command of the SRF controller is able to suppress the resonance and meet the requirement of IEEE 519 harmonic standard. Experimental results are also presented in this paper to validate the effectiveness of the SRF controller and the square-wave inverter based DHAF system.","PeriodicalId":321042,"journal":{"name":"Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242)","volume":" 43","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113947828","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: 80

Impact of tuned harmonic filters and power factor correction capacitors on long-duration arcing fault current 调谐谐波滤波器和功率因数校正电容器对长时间电弧故障电流的影响

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.730298

N. Medora, A. Kusko

{"title":"Impact of tuned harmonic filters and power factor correction capacitors on long-duration arcing fault current","authors":"N. Medora, A. Kusko","doi":"10.1109/IAS.1998.730298","DOIUrl":"https://doi.org/10.1109/IAS.1998.730298","url":null,"abstract":"Arcing fault current calculations typically use models and curves to estimate the ratio of arc current to bolted fault current. These conventional modeling techniques disregard external elements connected to the bus, such as connected loads, and storage elements such as power factor correction capacitors and tuned harmonic filters. Consequently, the calculated are current is significantly different from the actual value. Two methods are described here to calculate the magnitude of the long duration arcing fault current. The first method utilizes the per unit arcing current factors developed by Kaufmann and Page. The second method utilizes a computer model for the arc in a typical electric power system with power factor capacitors or tuned harmonic filters. The results are computed for two values of source impedance for four different test conditions. The magnitude of the arcing fault current computed using the Kaufmann and Page model agrees with the value from the computer model, for no load operating conditions establishing the accuracy of the model. The results of the computer model further show the impact of power factor capacitors and tuned harmonic filters on long duration arcing fault current.","PeriodicalId":321042,"journal":{"name":"Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126426773","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: 2

Electrolytic or film capacitors? 电解电容器还是薄膜电容器?

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.730290

M. Bramoulle

引用次数: 28

Zero voltage and zero current switched PWM DC-DC converters using active snubber technique 零电压零电流开关PWM DC-DC变换器采用有源缓冲技术

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.730350

Julian Y Zhu, D. Ding

引用次数: 7

A new harmonic reducing diode rectifier of capacitor input type for industrial high-voltage and high-power applications 一种用于工业高压大功率的新型电容输入型降谐波二极管整流器

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242) Pub Date : 1998-10-12 DOI: 10.1109/IAS.1998.730310

Y. Nishida, M. Nakaoka

引用次数: 6