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IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting最新文献

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Computer integrated monitoring, fault identification and control for a bottling line 灌装生产线的计算机集成监控、故障识别和控制
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530488
D. Troupis, S. Manesis, N. Koussoulas, T. Chronopoulos
{"title":"Computer integrated monitoring, fault identification and control for a bottling line","authors":"D. Troupis, S. Manesis, N. Koussoulas, T. Chronopoulos","doi":"10.1109/IAS.1995.530488","DOIUrl":"https://doi.org/10.1109/IAS.1995.530488","url":null,"abstract":"Today's bottling lines are complex production systems encountered in many kinds of food industries. Without an efficient monitoring system, such lines can prove to be inflexible and hard to manage. This paper presents the main issues which emerged during the conversion of a typical bottling line to a flexible and reconfigurable system, capable of implementing on-line decisions. Real-time monitoring, computer integrated structure, industrial networking, fault identification and modeling of fault propagation are the major themes covered.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"315 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116360928","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: 6
Defining standard performance levels for power semiconductor devices 定义功率半导体器件的标准性能等级
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530423
I. Budihardjo, P. Lauritzen, K. Wong, R. Darling, H. Mantooth
{"title":"Defining standard performance levels for power semiconductor devices","authors":"I. Budihardjo, P. Lauritzen, K. Wong, R. Darling, H. Mantooth","doi":"10.1109/IAS.1995.530423","DOIUrl":"https://doi.org/10.1109/IAS.1995.530423","url":null,"abstract":"Model validation for power semiconductor devices is classified into five levels with model performance features and applications defined for each level. The five levels for each device correspond to: basic, accurate, thermal, failure and degradation models. Whenever they exist, examples of device models are identified for each power semiconductor device.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116397710","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: 22
Charging of insulating spheres in contact with an electrode affected by a mono-ionized field 与受单电离场影响的电极接触的绝缘球的充电
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530441
L. Dascalescu, D. Rafiroiu, A. Samuila, R. Tobazéon
{"title":"Charging of insulating spheres in contact with an electrode affected by a mono-ionized field","authors":"L. Dascalescu, D. Rafiroiu, A. Samuila, R. Tobazéon","doi":"10.1109/IAS.1995.530441","DOIUrl":"https://doi.org/10.1109/IAS.1995.530441","url":null,"abstract":"The charge acquired by an insulating sphere in an uniform mono-ionized electric field has been accurately evaluated by Pauthenier. In certain electrostatic applications, such as the electroseparation of mixed granular solids, the particles to be charged are in contact with an electrode. Under these circumstances, Pauthenier's formula is no longer valid, because the field is nonuniform. The present paper addresses this problem from both a computational and an experimental point of view. A numerical method of electrostatic field analysis was employed for the evaluation of the charge acquired by spheres of various dielectric constants, in contact with plate electrode. The experiments were carried out on a laboratory equipment provided with various types of corona electrodes. An electrometer was used to measure the charge acquired by calibrated spheres of polyamide (diameter: 3 mm) when subjected to the positive or negative corona discharge generated between these electrodes and a metallic rotating roll electrode (diameter: 150 mm) connected to the ground. The experimental data were in good agreement with the theoretical predictions. The charge of the particles was found to be maximum for a model of electrode, which was then proposed as the standard for the industrial corona-electrostatic separators.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"306 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116448858","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: 9
Short flux paths optimise the efficiency of a 5-phase switched reluctance drive 短磁通路径优化了5相开关磁阻驱动的效率
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530313
A. Michaelides, C. Pollock
{"title":"Short flux paths optimise the efficiency of a 5-phase switched reluctance drive","authors":"A. Michaelides, C. Pollock","doi":"10.1109/IAS.1995.530313","DOIUrl":"https://doi.org/10.1109/IAS.1995.530313","url":null,"abstract":"A new configuration of switched reluctance drive is proposed in which the windings of a five-phase motor are configured to encourage short flux paths within the motor. The five-phase prototype motor can be fed from a new power converter which uses only six switching devices in a shared switch configuration. Experimental results demonstrate that the five-phase prototype achieves higher efficiency than prior art switched reluctance and induction drives constructed in the same frame size, and with the benefit of the new electronic circuit it is very cost effective.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116452972","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
Nature and assessments of torque ripples of permanent-magnet adjustable-speed motors 永磁调速电机转矩脉动的性质及评价
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530646
J. S. Hsu, B. Scoggins, M. Scudiere, L.D. Marlino, D. Adams, P. Pillay
{"title":"Nature and assessments of torque ripples of permanent-magnet adjustable-speed motors","authors":"J. S. Hsu, B. Scoggins, M. Scudiere, L.D. Marlino, D. Adams, P. Pillay","doi":"10.1109/IAS.1995.530646","DOIUrl":"https://doi.org/10.1109/IAS.1995.530646","url":null,"abstract":"Torque ripple of permanent magnet motors can be classified into four types depending on the nature of their origin. The four types are pulsating torque, fluctuating torque, reluctance cogging torque, and inertia and mechanical system torque. Pulsating torques are inherently produced by the trapezoidal back-EMFs and trapezoidal currents used in certain permanent magnet adjustable-speed motors. The torque ripples caused by pulsating torques may be reduced by purposely produced fluctuating counter torques. Air-gap torque assessments are conducted on a sample motor. Experimental results agree with theoretical expectations.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123464259","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: 12
Class-E current-driven center-tapped low dv/dt rectifier e类电流驱动中心抽头低dv/dt整流器
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530390
M. Bartoli, A. Reatti, H.K. Kazimierczuk
{"title":"Class-E current-driven center-tapped low dv/dt rectifier","authors":"M. Bartoli, A. Reatti, H.K. Kazimierczuk","doi":"10.1109/IAS.1995.530390","DOIUrl":"https://doi.org/10.1109/IAS.1995.530390","url":null,"abstract":"An analysis for a Class E current-driven center-tapped low dv/dt rectifier taking into account the transformer leakage inductances is given along with experimental verifications. The rectifier diodes turn on and off at low dv/dt. This results in low switching noise and low switching losses. Diode parasitic capacitances do not adversely affect the circuit operation. The absolute value of di/dt is limited at diode turn-off, reducing the reverse recovery current. The circuit is operated at a low output voltage ripple and, therefore, at a low power loss in the equivalent series resistance (ESR) of the filter capacitor. Experimental tests were performed for a rectifier circuit operated at an output power of P/sub O/=60 W, a minimum frequency of f=500 kHz, and an output voltage of V/sub O/=3.3 V. The theoretical and the experimental results are in good agreement. Experimental measurements demonstrate that the rectifier is suitable for high-power density, high-frequency applications that requires low-output voltages and high-currents.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123483082","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
Armature current locus based estimation method of rotor position of permanent magnet synchronous motor without mechanical sensor 基于电枢电流轨迹的无机械传感器永磁同步电机转子位置估计方法
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530283
S. Kondo, A. Takahashi, T. Nishida
{"title":"Armature current locus based estimation method of rotor position of permanent magnet synchronous motor without mechanical sensor","authors":"S. Kondo, A. Takahashi, T. Nishida","doi":"10.1109/IAS.1995.530283","DOIUrl":"https://doi.org/10.1109/IAS.1995.530283","url":null,"abstract":"This paper describes a new method of estimating the initial rotor position of a permanent magnet (PM) motor without turning the rotor. At the stand still, the saliency of the PM motor makes the locus of the armature current-vector an oval when the armature voltage is a 3-phase balanced sine wave applied by a PWM inverter. The major diameter direction of the current-vector locus gives information on the rotor direction. The shift of the current-vector locus caused by magnetic saturation makes it possible to identify the direction of the rotor magnet N-pole. The proposed method to estimate the rotor position was verified by experimental results of a 100 W PM motor.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"431 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122138068","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: 55
Analysis of winding losses in high frequency foil wound inductors 高频箔绕式电感绕组损耗分析
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530388
Nasser H. Kutkut, Donald W. Novotny, D. M. Divan, E. Yeow
{"title":"Analysis of winding losses in high frequency foil wound inductors","authors":"Nasser H. Kutkut, Donald W. Novotny, D. M. Divan, E. Yeow","doi":"10.1109/IAS.1995.530388","DOIUrl":"https://doi.org/10.1109/IAS.1995.530388","url":null,"abstract":"The design of high power and high frequency foil wound inductors is not a straightforward task. At high frequencies, additional losses occur within the foil windings due to the eddy currents induced by skin, proximity, fringing and other AC effects. In addition, the winding structure greatly affects the distribution of losses within the windings. In this paper, the various loss mechanisms of a foil winding are analyzed and quantified. Both analytical and finite element analysis tools are utilized to investigate and understand the different loss mechanisms. The results show a strong correlation between the current and field distributions within the windings where the current is always attracted to the high field regions. By shaping and controlling the field distribution in a given design, the current distribution can be improved which results in an improvement in the winding losses.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125877111","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: 28
A comparative analysis of torque production in Halbach and conventional surface-mounted permanent-magnet synchronous motors Halbach与传统表面贴装永磁同步电机转矩产生的比较分析
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530362
J. Ofori-Tenkorrang, J. Lang
{"title":"A comparative analysis of torque production in Halbach and conventional surface-mounted permanent-magnet synchronous motors","authors":"J. Ofori-Tenkorrang, J. Lang","doi":"10.1109/IAS.1995.530362","DOIUrl":"https://doi.org/10.1109/IAS.1995.530362","url":null,"abstract":"The general question of when and why one should use a Halbach rotor in the design of surface-mounted permanent-magnet synchronous motors is addressed. The torque production capabilities of Halbach and conventional magnet arrays under the constraints of fixed magnet volume, and fixed power dissipation in slotless armature windings, are compared and the results presented in a graphical manner along with intuitive models that qualitatively explain these results. The authors conclude that, for permanent-magnet synchronous motors where the application precludes the use of a magnetic back-iron, the Halbach array always produces higher torque than the conventional array, for the same volume of magnets. The use of a magnetic back-iron in both designs increases the achievable torque. However for magnetically-backed rotors, the conventional array, with an optimized pole-arc to pole-pitch ratio, produces higher torque than the Halbach array up to a certain thickness of magnets. Above this thickness, the Halbach array produces a higher torque.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126192093","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: 78
Investigating the influence of material properties on the efficiency of an induction heating load transformer using FEM simulations 采用有限元模拟方法研究了材料性能对感应加热负载变压器效率的影响
IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting Pub Date : 1995-10-08 DOI: 10.1109/IAS.1995.530389
H.W. Koertzen, J. V. van Wyk, J. Ferreira
{"title":"Investigating the influence of material properties on the efficiency of an induction heating load transformer using FEM simulations","authors":"H.W. Koertzen, J. V. van Wyk, J. Ferreira","doi":"10.1109/IAS.1995.530389","DOIUrl":"https://doi.org/10.1109/IAS.1995.530389","url":null,"abstract":"The heating-coil and workpiece combination of an induction heating circuit can be seen as a transformer, i.e. the load transformer. It is common practice to neglect the influence of the magnetizing inductance, and therefore represent the load transformer with a series resistance and inductance. The efficiency will increase if the resistance of the workpiece increases according to this assumption. The validity of this assumption is investigated using finite element method simulations. The results showed that for materials with a high resistivity and relative permeability, e.g. the commonly used carbon steels, the magnetizing inductance should not be neglected. Experimental results are not presented due to the complexity of the problem.","PeriodicalId":117576,"journal":{"name":"IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124609810","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: 15
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