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

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Axial flux permanent magnet servo motor with sixteen poles 十六极轴向磁通永磁伺服电机
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244282
S. Geetha, D. Platt
{"title":"Axial flux permanent magnet servo motor with sixteen poles","authors":"S. Geetha, D. Platt","doi":"10.1109/IAS.1992.244282","DOIUrl":"https://doi.org/10.1109/IAS.1992.244282","url":null,"abstract":"A disk-type servo motor which is novel in several aspects is presented. It has a high pole number (16) and a two-phase winding. The disk-type design has two stators and each stator carries only one phase winding. Two mathematical models are introduced, one linear model which succeeds in predicting the behaviour of the machine when the currents are relatively low, and another which accounts for the saturation in the stator iron at high current levels. The machine is highly discrete in structure, having only one slot per pole in each stator. The models take this into account. Laboratory test results are presented which demonstrate that the machine is capable of twice the acceleration claimed by the commercial manufacturer of a similarly rated high-performance servo motor.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"30 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":"126358003","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: 7
Access time minimization of a moving coil actuator with volumetric, magnetic and current constraints 具有体积、磁性和电流限制的动圈驱动器的访问时间最小化
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244451
J. Wagner
{"title":"Access time minimization of a moving coil actuator with volumetric, magnetic and current constraints","authors":"J. Wagner","doi":"10.1109/IAS.1992.244451","DOIUrl":"https://doi.org/10.1109/IAS.1992.244451","url":null,"abstract":"The existence of global optima for access time and dissipated power is demonstrated by analysis and numerical example for a volume constrained, magnetically constrained, and electrically constrained moving coil actuator. A simple iterative procedure for access time and power is given. The optima are illustrated by numerically obtained plots for a typical disk drive with 5.25 in diameter disks and a split magnetics linear actuator. The usefulness of the assumptions made for the analysis is discussed.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"93 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":"126213086","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
A study of nozzle extraction geometry of a liquid metal atomizer using computer simulation of electric fields 利用电场的计算机模拟研究了液态金属雾化器的喷嘴抽取几何形状
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244385
S. Cvetkovic, W. Balachandran, B. Kleveland, P. Arnold, G. Wilson
{"title":"A study of nozzle extraction geometry of a liquid metal atomizer using computer simulation of electric fields","authors":"S. Cvetkovic, W. Balachandran, B. Kleveland, P. Arnold, G. Wilson","doi":"10.1109/IAS.1992.244385","DOIUrl":"https://doi.org/10.1109/IAS.1992.244385","url":null,"abstract":"The authors compare experimental measurements with results obtained using a dedicated computer program for finite-element modeling of fields in the vicinity of a liquid metal atomizer nozzle/tip. A good agreement between the experiment and the computer model has been achieved for two different nozzle geometries, with particular attention being paid to accuracy of the numerical solution near the tip for equipotentials as well as derived values of field strength. In addition, the potential distribution has been calculated for several different positions of the extractor electrode and the effects of negative extractor voltage observed for each case. The suitability of the computer technique for qualitative consideration of the atomization process itself is assessed.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"PP 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":"126444183","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
Effects of electronic ballasts on utility voltage stability 电子镇流器对电力系统电压稳定性的影响
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244221
J. Barrett
{"title":"Effects of electronic ballasts on utility voltage stability","authors":"J. Barrett","doi":"10.1109/IAS.1992.244221","DOIUrl":"https://doi.org/10.1109/IAS.1992.244221","url":null,"abstract":"Some of the newer electronic ballasts have been designed to maintain constant light output and power demand during voltage fluctuations. Recent work has addressed the adverse effect that constant power electronic ballasts can have on demand curtailments during utility-controlled voltage reductions. The author builds on this previous work and explores a mechanism by which these constant power electronic ballasts tend to degrade utility voltage stability. Experimental findings comparing the electrical characteristics of magnetic and electronic ballasts are presented. Load models representing fluorescent lighting loads are developed on the basis of these findings. Conclusions are drawn concerning the potential for electronic ballasts to erode operational safety margins used to avoid voltage instability. Areas requiring further research are suggested.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"25 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":"125468743","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
Use of neural networks to identify and compensate for friction in precision, position controlled mechanisms 利用神经网络在精密、位置控制机构中识别和补偿摩擦
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244215
D.R. Seidl, T.L. Reineking, R. Lorenz
{"title":"Use of neural networks to identify and compensate for friction in precision, position controlled mechanisms","authors":"D.R. Seidl, T.L. Reineking, R. Lorenz","doi":"10.1109/IAS.1992.244215","DOIUrl":"https://doi.org/10.1109/IAS.1992.244215","url":null,"abstract":"A special neural network topology has been developed that compensates for friction in precision, position controlled mechanisms. A major contribution is that knowledge of the friction's form is used to determine the neural network's structure. This unique approach solves network sizing and weight initializing problems. The friction model is used for feedforward decoupling of friction-induced torque. The neural network also explicitly incorporates inertia compensation and linear feedback control. Another contribution is a demonstration of the trajectory dependence of static friction compensation with a discrete time controller. The authors include both the theoretical formulation and practical implementation results for the control of a commercial DC motor having a significant amount of static friction.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"51 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":"127933010","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: 26
Charge transfer between a polymer particle and a metal plate due to impact 由于撞击在聚合物颗粒和金属板之间的电荷转移
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244394
T. Matsuyama, H. Yamamoto
{"title":"Charge transfer between a polymer particle and a metal plate due to impact","authors":"T. Matsuyama, H. Yamamoto","doi":"10.1109/IAS.1992.244394","DOIUrl":"https://doi.org/10.1109/IAS.1992.244394","url":null,"abstract":"The dependence of impact charge on impact angle is investigated. The impact-contact process is studied by measuring impact force, contact time, and contact area when a particle impacts a metal plate. To give a general description of the contact-impact electrification of the particle, a model called the contact points covering model is proposed. It is based on the contact points covering factor, which is the ratio of the real contact area to the apparent contact area. Its correctness is shown.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"14 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131804939","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: 26
Countermeasure for instability in voltage source inverter fed field oriented synchronous machines without using a position sensor 不使用位置传感器的电压源逆变电源励磁同步电机不稳定对策
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244355
Z. Shihe, F. Blaschke, A. Vandenput, W. Geysen
{"title":"Countermeasure for instability in voltage source inverter fed field oriented synchronous machines without using a position sensor","authors":"Z. Shihe, F. Blaschke, A. Vandenput, W. Geysen","doi":"10.1109/IAS.1992.244355","DOIUrl":"https://doi.org/10.1109/IAS.1992.244355","url":null,"abstract":"A particular instability phenomenon as well as the countermeasure in a voltage source inverter-fed synchronous machine with a field orientation control circuit without using a position sensor. A superposed control circuit generates the reference values of the rotor current and the field-oriented stator voltage vector. The necessary signals for the generation of these reference values are calculated using a current model which is fed by the reference values of the currents. Due to the utilization of the load angle signal calculated in this way, the torque component of the stator current is strongly coupled with the flux, which results in an operation range where, under normal excitation, the machine is not able to work stably at the desired operation point. This instability is independent of the parameter tuning and the orientation correctness. The required decoupling is realized by feeding back of the actual flux signal to the control unit, and the unstable operation range will be eliminated.<<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":"131135391","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
Modeling and simulation of an electronically commutated permanent-magnet drive system using SPICE 基于SPICE的电子换向永磁驱动系统建模与仿真
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244362
A. Fardoun, E. Fuchs, H. Huang
{"title":"Modeling and simulation of an electronically commutated permanent-magnet drive system using SPICE","authors":"A. Fardoun, E. Fuchs, H. Huang","doi":"10.1109/IAS.1992.244362","DOIUrl":"https://doi.org/10.1109/IAS.1992.244362","url":null,"abstract":"The design of high-efficiency, electronically commutated, permanent magnet machine (ECPM) drives based on the finite element/difference method, and the solution of the ensuing differential equations with SPICE. The permanent magnet motor model includes the computation of load-dependent components of the motor equivalent circuit (e.g. induced voltages and inductances). A novel SPICE MOSFET model reflecting the reverse-recovery current phenomenon-which is very important for the design of variable speed drives operating in pulse-width-modulated (PWM) mode-is introduced. Results of this model are compared with measurements. Since ECPMs lend themselves well to vehicle propulsion due to their inherent high efficiencies at light weight, it is desirable to have a very high output-power-to-weight ratio for such applications.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"11 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":"133519958","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
Performance of PWM-controlled thyristor rectifier operating at unity fundamental power factor in PWM current source GTO inverter system for induction motor drive PWM电流源GTO异步电机驱动逆变系统中PWM控制晶闸管整流器在单位基频功率因数下的性能
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244273
K. Matsuse, H. Kubota
{"title":"Performance of PWM-controlled thyristor rectifier operating at unity fundamental power factor in PWM current source GTO inverter system for induction motor drive","authors":"K. Matsuse, H. Kubota","doi":"10.1109/IAS.1992.244273","DOIUrl":"https://doi.org/10.1109/IAS.1992.244273","url":null,"abstract":"The performance of a pulse-width-modulated (PWM)-controlled thyristor rectifier operating at unity fundamental input power factor in a PWM current source gate turn-off (GTO) thyristor invertor system for high-speed high-horsepower induction motor drive is analyzed and determined. With the application of an energy rebound circuit in the DC link of the inverter for PWM control of the thyristor rectifier, a PWM controlled current source GTO inverter has been proposed. A prototype unit is used to drive an eight-pole, 400 Hz, 5.5-kW three-phase induction motor. The performance of the DC voltage control of the PWM-controlled thyristor rectifier is investigated for various values of the number of pulses for a half-period of the supply frequency.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"375 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":"131934833","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
Maximum likelihood estimation of synchronous machine parameters from flux decay data 基于磁链衰减数据的同步电机参数的最大似然估计
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244295
A. Tumageanian, A. Keyhani, S. Moon, T. Leksan, L. Xu
{"title":"Maximum likelihood estimation of synchronous machine parameters from flux decay data","authors":"A. Tumageanian, A. Keyhani, S. Moon, T. Leksan, L. Xu","doi":"10.1109/IAS.1992.244295","DOIUrl":"https://doi.org/10.1109/IAS.1992.244295","url":null,"abstract":"A time-domain system identification procedure for estimating the parameters of a 5-kVA salient pole machine from standstill test measurements is proposed. The test consists of a DC flux decay signal applied to the d-axis and q-axis of the machine. From the recorded responses to this signal, the admittance transfer function models and the standstill frequency response (SSFR) equivalent circuit models are identified. The maximum-likelihood algorithm is used to estimate the model parameter values, and the Akaike criterion is used to select the best-fit model. The performance of the standstill models in the dynamic environment is studied through simulation of an online small-disturbance test. The results are compared with measured data.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"69 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":"131896275","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: 17
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