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Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting最新文献

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Design criteria of high performance synchronous reluctance motors 高性能同步磁阻电动机的设计准则
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244463
A. Vagati, Giovanni Franceschini, I. Marongiu, G. P. Troglia
{"title":"Design criteria of high performance synchronous reluctance motors","authors":"A. Vagati, Giovanni Franceschini, I. Marongiu, G. P. Troglia","doi":"10.1109/IAS.1992.244463","DOIUrl":"https://doi.org/10.1109/IAS.1992.244463","url":null,"abstract":"The main problems related to the design of a synchronous reluctance servomotor are examined. The most suitable rotor structure is identified among different alternatives. A simplified but general algorithm is found for calculating the internal optimized anisotropy ratio. Optimization algorithms are given regarding minimization of the q-axis magnetic flux and maximization of torque for given outside diameter and power dissipation capability. A maximum torque design is illustrated in the general case, practical involvements of this design are pointed out and discussed.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"10 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115512390","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: 166
Verification of vibration data in electromachine systems using neural-network software 用神经网络软件验证电机系统振动数据
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244464
M. Evans, A. Trzynadlowski
{"title":"Verification of vibration data in electromachine systems using neural-network software","authors":"M. Evans, A. Trzynadlowski","doi":"10.1109/IAS.1992.244464","DOIUrl":"https://doi.org/10.1109/IAS.1992.244464","url":null,"abstract":"Verification of vibration data in electromachine systems using neural network software is described. Due to a number of factors, the data are often corrupted and therefore it has been usually verified by a visual inspection. The developed neural networks were trained to screen out glitched and clipped waveforms. Satisfactory results were obtained, indicating the feasibility of neural networks for vibrational diagnostics.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114498776","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
Dynamics of sessile droplets deformation under electric fields in microgravity 微重力电场作用下固滴变形动力学
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244251
I. Inculet, J. M. Floryan
{"title":"Dynamics of sessile droplets deformation under electric fields in microgravity","authors":"I. Inculet, J. M. Floryan","doi":"10.1109/IAS.1992.244251","DOIUrl":"https://doi.org/10.1109/IAS.1992.244251","url":null,"abstract":"An experimental study of the dynamics of the deformation and breakup of a sessile droplet placed on a plane electrode made out of polished brass or aluminum is described. The breakup was filmed with a high-speed camera at 2000 frames per second. Film frames are presented, showing, at definite intervals, the apex and resting angles of the Taylor cone formation, the gradual deformation of the Taylor cone leading to breakup, the oscillation of the sessile droplet after the breakup of the Taylor cone tip, and some unusual deformations of the Taylor cone tip. Most of the experiments were carried out with tap water. The authors also present a series of photographs showing the dynamics of droplet breakup in the case of a highly viscous, dielectric liquid. Mathematical modeling exhibited the breakup and the oscillation frequency of the sessile droplet under electric fields below the intensity required for breakup.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121888362","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
Use of dielectrophoretic collection spectra for characterizing differences between normal and cancerous cells 使用介电收集光谱来表征正常细胞和癌细胞之间的差异
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244396
P. Gascoyne, J. Noshari, Frederick F. Becker, R. Pethig
{"title":"Use of dielectrophoretic collection spectra for characterizing differences between normal and cancerous cells","authors":"P. Gascoyne, J. Noshari, Frederick F. Becker, R. Pethig","doi":"10.1109/IAS.1992.244396","DOIUrl":"https://doi.org/10.1109/IAS.1992.244396","url":null,"abstract":"An automated analysis system for the rapid measurement of dielectrophoretic collection spectra of mammalian cells is described. Cells are injected onto an electrode configuration having regions with different electric field gradients, and cell movement to or from these regions is determined by computerized image analysis as a function of the applied electric field frequency. Data are presented to show that cultured murine erythroleukemia cells undergo a significant alteration in their dielectrophoretic collection spectrum following treatment with hexamethylene bisacetamide or dimethylsulfoxide, agents that induce terminal differentiation in these otherwise malignant cells. These changes appear to arise from characteristic alterations in membrane capacitance and conductance as the cells differentiate.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125808034","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: 76
Models for induction machines with magnetic saturation of the main flux path 主磁通路径磁饱和的感应电机模型
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244455
C. Sullivan, S. Sanders
{"title":"Models for induction machines with magnetic saturation of the main flux path","authors":"C. Sullivan, S. Sanders","doi":"10.1109/IAS.1992.244455","DOIUrl":"https://doi.org/10.1109/IAS.1992.244455","url":null,"abstract":"A novel nonlinear pi -model for an induction machine operating in magnetic saturation has been developed. It is based on a magnetic circuit model of a rotor-stator tooth pair, with nonlinear elements representing the saturation in the rotor and in the stator. The model of a tooth pair is extended to a model of the machine by assuming an infinite number of infinitesimal teeth. The model is compatible with the Blondel-Park transformation. Experimental measurements on a wound rotor machine confirm the model. Operating conditions for optimal efficiency at high torque levels requiring operation in saturation are computed with the model.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129757361","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: 103
Temperature effect on the performance characteristics of beta rays open air corona streamer counter 温度对β射线露天电晕流光计数器性能特性的影响
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244375
L. Fouad, S. El-Hazek
{"title":"Temperature effect on the performance characteristics of beta rays open air corona streamer counter","authors":"L. Fouad, S. El-Hazek","doi":"10.1109/IAS.1992.244375","DOIUrl":"https://doi.org/10.1109/IAS.1992.244375","url":null,"abstract":"An open-air, three-electrode corona streamer counter with a preamplification gap has been utilized for detecting weakly ionizing beta rays. The effect of temperature on the beta particle corona counter performance is studied. A theoretical model is used to study the effect of temperature on counter operating voltage and beta-particle-triggered corona pulse characteristics. The effects on the counter energy response are explained. A compensation method for the errors due to temperature effects is suggested. All the theoretical findings were confirmed by experiments.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131058110","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
A new magnetic flux pattern to improve the efficiency of the switched reluctance motor 一种提高开关磁阻电机效率的新型磁通模式
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244290
A. Michaelides, C. Pollock
{"title":"A new magnetic flux pattern to improve the efficiency of the switched reluctance motor","authors":"A. Michaelides, C. Pollock","doi":"10.1109/IAS.1992.244290","DOIUrl":"https://doi.org/10.1109/IAS.1992.244290","url":null,"abstract":"A novel configuration of the switched reluctance motor is proposed in which the windings are arranged to provide short flux paths within the motor. This decreases the current required to establish the flux in the airgap. The motor has an odd number of phase windings with five or seven predicted to be the optimum. A novel power converter has also been developed which makes the control of these motors possible without excessive numbers of power switches. Finite-element analysis was used to model the effects of the short flux loops. A prototype seven-phase motor was designed and built. Test results are presented which indicate the improvements in performance offered by the new design.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132404547","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: 8
Expert system for analysis of power system harmonics 电力系统谐波分析专家系统
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244266
D. Shipp, W. Vilcheck, M. Swartz, N. Woodley
{"title":"Expert system for analysis of power system harmonics","authors":"D. Shipp, W. Vilcheck, M. Swartz, N. Woodley","doi":"10.1109/IAS.1992.244266","DOIUrl":"https://doi.org/10.1109/IAS.1992.244266","url":null,"abstract":"The authors report on one effort to employ artificial intelligence (AI) in the form of a harmonics analysis expert system. The resulting PC-based software program has captured the knowledge of expert power system engineers in a rule base which can use information about the topology, power signature, operating practices, symptoms, equipment type and ratings, and chronology of system development to diagnose harmonics-caused problems. The goal is to accomplish the analysis with a less experienced engineer, thereby multiplying the available nationwide pool of expertise. Additionally, repeated use of the system imparts knowledge to the user. The process of applying this AI approach involves training the user, measurements (optional), diagnosis, and reducing the power system harmonics to achieve acceptable power supply quality. The emphasis is on the diagnostic module. An example of its use is presented.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127983475","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
Vibration aspects of the design of a new generation of DC motors for the propulsion of submarines 在振动方面设计了新一代用于潜艇推进的直流电机
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244461
R. Belmans, W. Geysen, E. Tuinman, J. Gordens
{"title":"Vibration aspects of the design of a new generation of DC motors for the propulsion of submarines","authors":"R. Belmans, W. Geysen, E. Tuinman, J. Gordens","doi":"10.1109/IAS.1992.244461","DOIUrl":"https://doi.org/10.1109/IAS.1992.244461","url":null,"abstract":"The authors discuss vibration and audible noise aspects of a new series of DC motors for the propulsion of submarines. A number of sources of vibrations and audible noise exists: external mechanical; external electrical; internal electrical; and electromagnetic forces. All these sources are discussed individually. Measurements show that an adapted motor construction combined with independent choppers for field and armature winding yields acceptable results. Except for the influence of the brushes, the internal mechanical sources are negligible. For predicting the vibrations and the audible noise originating from electromagnetic forces, the concept of Maxwell stress can be adapted. The forces may be split into symmetrical and asymmetrical components, and a fourier analysis may be used. An optimized main pole shape can be obtained using the finite element technique.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"20 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129036806","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
A simple limit cycle suppression scheme for hysteresis current controlled PWM VSI with consideration of switching delay time 一种简单的考虑开关延迟时间的迟滞电流控制PWM VSI极限环抑制方案
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244433
K. Tungpimolrut, M. Matsui, T. Fukao
{"title":"A simple limit cycle suppression scheme for hysteresis current controlled PWM VSI with consideration of switching delay time","authors":"K. Tungpimolrut, M. Matsui, T. Fukao","doi":"10.1109/IAS.1992.244433","DOIUrl":"https://doi.org/10.1109/IAS.1992.244433","url":null,"abstract":"A novel suppression scheme for switching known as the limit cycle in a hysteresis current controller is presented. The proposed method is based on the concept of superimposing a common offset signal, which has both proper amplitude and pattern, on three-phase current references, and does not need any additional circuit. It is verified that the switching interference occurs more easily and directly depends on the period of the delay time. Moreover, the switching delay time also significantly influences the effect of limit cycle suppressions. It is seen that with the proposed method the switching interference is greatly suppressed even if the switching delay time exists. Simulations and experiments are performed to verify the effectiveness of the proposed method, and some results are presented.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125345055","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: 18
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