Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268788
E. Ejiogu, Y. Tanno
The capacitor excitation/magnetic braking of the induction motor offers, among other attractive features fail safe braking. However, this braking method may induce severe mechanical, voltage and current transients in the motor which itself operates under heavy magnetic saturation. In this analysis, the authors have included leakage flux saturation, and their result shows a better simulation-experimental correlation than if the leakage flux saturation is neglected.<>
{"title":"Transient and saturation modelling of the capacitor-excitation and magnetic braking of the induction motor","authors":"E. Ejiogu, Y. Tanno","doi":"10.1109/ISIE.1993.268788","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268788","url":null,"abstract":"The capacitor excitation/magnetic braking of the induction motor offers, among other attractive features fail safe braking. However, this braking method may induce severe mechanical, voltage and current transients in the motor which itself operates under heavy magnetic saturation. In this analysis, the authors have included leakage flux saturation, and their result shows a better simulation-experimental correlation than if the leakage flux saturation is neglected.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133888483","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268805
S. H. Hosseini, A. Servatian, A. Seifi
The authors propose a suitable reference wave for pulse width modulation (PWM) AC Drives. Staircase reference waves whose levels are calculated to eliminate certain harmonics, are studied. A certain staircase reference waveform with L levels is constructed; when L is made very large, in limit, this staircase waveform approaches a continuous one which is called Quasine (Quasi+Sine). This approach compared to the classical harmonic elimination method has the advantage that the magnitude of nontriplen harmonics is reduced. The authors developed a computer program by TURBO PASCAL 6 to have a comparison between the harmonic contents of output voltage for various reference waveforms.<>
{"title":"A nonsinusoidal reference wave for PWM AC drives","authors":"S. H. Hosseini, A. Servatian, A. Seifi","doi":"10.1109/ISIE.1993.268805","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268805","url":null,"abstract":"The authors propose a suitable reference wave for pulse width modulation (PWM) AC Drives. Staircase reference waves whose levels are calculated to eliminate certain harmonics, are studied. A certain staircase reference waveform with L levels is constructed; when L is made very large, in limit, this staircase waveform approaches a continuous one which is called Quasine (Quasi+Sine). This approach compared to the classical harmonic elimination method has the advantage that the magnitude of nontriplen harmonics is reduced. The authors developed a computer program by TURBO PASCAL 6 to have a comparison between the harmonic contents of output voltage for various reference waveforms.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115320466","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268806
S. Halász
The investigation of pulsewidth modulation methods of two and three level inverter fed induction motors is the focus of the paper. The goal is to use natural modulating techniques and compare these methods with the harmonic loss-minimization methods.<>
{"title":"Analysis of pulsewidth modulation techniques for induction motor drives","authors":"S. Halász","doi":"10.1109/ISIE.1993.268806","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268806","url":null,"abstract":"The investigation of pulsewidth modulation methods of two and three level inverter fed induction motors is the focus of the paper. The goal is to use natural modulating techniques and compare these methods with the harmonic loss-minimization methods.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125051370","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268728
A. Consoli, A. Raciti, B. Dobrucký, V. Hrabovcová
Disk synchronous motors (DSM) are the preferred actuators in the robotic field due to their high specific torque, low inertia, and short length of the shaft. In this paper, static and dynamic stability during operation of permanent magnet (PM) disk synchronous motors are analyzed. The equivalent circuits of the DSM are reported and the determination of the relative parameters are discussed. Simulation and experimental validation of dynamic behaviour of the complete drive DSM with vector control is given.<>
{"title":"Static and dynamic behaviour of disk synchronous motors","authors":"A. Consoli, A. Raciti, B. Dobrucký, V. Hrabovcová","doi":"10.1109/ISIE.1993.268728","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268728","url":null,"abstract":"Disk synchronous motors (DSM) are the preferred actuators in the robotic field due to their high specific torque, low inertia, and short length of the shaft. In this paper, static and dynamic stability during operation of permanent magnet (PM) disk synchronous motors are analyzed. The equivalent circuits of the DSM are reported and the determination of the relative parameters are discussed. Simulation and experimental validation of dynamic behaviour of the complete drive DSM with vector control is given.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121609370","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268830
Søndergård, Lars Møller
It is often required that a three-phased asynchronous motor can run at variable speed, which makes it necessary to use a three-phase inverter driven from a DC-source. Today, most inverters are driven from the network using a simple diode bridge and an electrolytic capacitor. The problem with the simple diode bridge and the electrolytic capacitor is that current is only drawn for short periods, which gives rise to harmonic currents in the network. For small drive systems (motor+inverter), i.e. less than 1.5 kW, a single phase network outlet is often used. The author describes a method whereby the problem with harmonic currents, when using a single phase network connection, can be solved.<>
{"title":"A control strategy for induction motors fed from single phase supply","authors":"Søndergård, Lars Møller","doi":"10.1109/ISIE.1993.268830","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268830","url":null,"abstract":"It is often required that a three-phased asynchronous motor can run at variable speed, which makes it necessary to use a three-phase inverter driven from a DC-source. Today, most inverters are driven from the network using a simple diode bridge and an electrolytic capacitor. The problem with the simple diode bridge and the electrolytic capacitor is that current is only drawn for short periods, which gives rise to harmonic currents in the network. For small drive systems (motor+inverter), i.e. less than 1.5 kW, a single phase network outlet is often used. The author describes a method whereby the problem with harmonic currents, when using a single phase network connection, can be solved.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125404727","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268741
Z. Mammeri
In integrated manufacturing systems, quality of cooperation between men and machines, maintenance and evolutivity of command installations depend partly on quality of communications inside enterprise. Given the automation complexity of today's factories, one needs powerful methods and tools enabling one to have a global and complete communication view at the different stages of communication life cycle. This global and common view may be obtained by using a database containing all needed information concerning communications. This paper presents a model for the description of factory communications and shows how the attributes introduced by this model may be used at various stages of the communication life cycle.<>
{"title":"A database for description and handling of factory communications","authors":"Z. Mammeri","doi":"10.1109/ISIE.1993.268741","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268741","url":null,"abstract":"In integrated manufacturing systems, quality of cooperation between men and machines, maintenance and evolutivity of command installations depend partly on quality of communications inside enterprise. Given the automation complexity of today's factories, one needs powerful methods and tools enabling one to have a global and complete communication view at the different stages of communication life cycle. This global and common view may be obtained by using a database containing all needed information concerning communications. This paper presents a model for the description of factory communications and shows how the attributes introduced by this model may be used at various stages of the communication life cycle.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125899149","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268787
T.-T. Lee, Jin-Tsong Jeng
To overcome the shortcomings of the backpropagation (Bp) algorithm, namely, slow convergence, local minimum, and paralysis problems, a combined backpropagation/Cauchy (Bp/Cauchy) machine has been proposed by Wasserman (1990). In this paper, a switching condition is introduced to improve the backpropagation/Cauchy machine network. To illustrate the effectiveness of the proposed method, examples of xor and the learning of a unknown function are included. Results show that the improved Bp/Cauchy machine is more effective in learning than the original Bp/Cauchy machine.<>
{"title":"An improved back-propagation/Cauchy machine network","authors":"T.-T. Lee, Jin-Tsong Jeng","doi":"10.1109/ISIE.1993.268787","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268787","url":null,"abstract":"To overcome the shortcomings of the backpropagation (Bp) algorithm, namely, slow convergence, local minimum, and paralysis problems, a combined backpropagation/Cauchy (Bp/Cauchy) machine has been proposed by Wasserman (1990). In this paper, a switching condition is introduced to improve the backpropagation/Cauchy machine network. To illustrate the effectiveness of the proposed method, examples of xor and the learning of a unknown function are included. Results show that the improved Bp/Cauchy machine is more effective in learning than the original Bp/Cauchy machine.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129419446","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268833
J. Palma, J. Dente, F. J. Carvalhal
Following previous studies on stator and rotor field orientation for low power drives, the simplification of air gap field oriented control methods was investigated for induction motor drives with voltage-source inverters. Firstly, a general control law for voltage input is established using input-output linearization. This sophisticated procedure is then the subject of simplification steps, leading to control algorithms of decreasing complexity. Such solutions were especially devised for economy in low power drives. The steady state performance is analytically studied as well as the sensitivity to the variation of parameters. Dynamic behaviour is also analysed. The results obtained for stator, rotor and air-gap flux reference frames are globally compared with other known methods eligible for the same purpose, and show an attractive compromise between performance and complexity. Experimental results are reported from a prototype implemented with a single eight-bit microcontroller.<>
{"title":"A comparison of simplified field oriented control methods for voltage-source induction motor drives","authors":"J. Palma, J. Dente, F. J. Carvalhal","doi":"10.1109/ISIE.1993.268833","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268833","url":null,"abstract":"Following previous studies on stator and rotor field orientation for low power drives, the simplification of air gap field oriented control methods was investigated for induction motor drives with voltage-source inverters. Firstly, a general control law for voltage input is established using input-output linearization. This sophisticated procedure is then the subject of simplification steps, leading to control algorithms of decreasing complexity. Such solutions were especially devised for economy in low power drives. The steady state performance is analytically studied as well as the sensitivity to the variation of parameters. Dynamic behaviour is also analysed. The results obtained for stator, rotor and air-gap flux reference frames are globally compared with other known methods eligible for the same purpose, and show an attractive compromise between performance and complexity. Experimental results are reported from a prototype implemented with a single eight-bit microcontroller.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126247846","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268793
Y. Fu, B. Robyns, F. Labrique
The authors deal with the fully digital control of synchronous reluctance motors. A control algorithm based on the strategy consisting of keeping constant the d axis component of the stator currents, and controlling the torque by the q axis component of these currents is investigated. The effects of the sampling period, the delay due to computation time and the parameter uncertainties, on the stability and the robustness of the current control, are analysed. It is found that, with the proposed control algorithm, values of the sampling period which are compatible with the use of low cost microcontrollers may be chosen. Digital simulations confirm the theoretical study.<>
{"title":"Investigation on a fully digital control system for synchronous reluctance machines","authors":"Y. Fu, B. Robyns, F. Labrique","doi":"10.1109/ISIE.1993.268793","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268793","url":null,"abstract":"The authors deal with the fully digital control of synchronous reluctance motors. A control algorithm based on the strategy consisting of keeping constant the d axis component of the stator currents, and controlling the torque by the q axis component of these currents is investigated. The effects of the sampling period, the delay due to computation time and the parameter uncertainties, on the stability and the robustness of the current control, are analysed. It is found that, with the proposed control algorithm, values of the sampling period which are compatible with the use of low cost microcontrollers may be chosen. Digital simulations confirm the theoretical study.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122244446","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}
Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268712
M. Strefezza, Y. Dote
Neuro controllers have recently been applied to practical systems. The commonest network in these applications has been the multilayer perceptron trained by backpropagation. The objective of this paper is to present a new neuro control scheme for servomotors. An important feature of the proposed control scheme is that the radial basis function network, instead of normal backpropagation neural net, is used to tune a conventional controller. Another goal is to introduce a two layer radial basis network structure to be trained with the novel algorithm. Simulations are performed with both radial basis function networks showing that the proposed neuro controller can be trained in a short period of time and is robust.<>
{"title":"Radial basis neural network adaptive controller for servomotor","authors":"M. Strefezza, Y. Dote","doi":"10.1109/ISIE.1993.268712","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268712","url":null,"abstract":"Neuro controllers have recently been applied to practical systems. The commonest network in these applications has been the multilayer perceptron trained by backpropagation. The objective of this paper is to present a new neuro control scheme for servomotors. An important feature of the proposed control scheme is that the radial basis function network, instead of normal backpropagation neural net, is used to tune a conventional controller. Another goal is to introduce a two layer radial basis network structure to be trained with the novel algorithm. Simulations are performed with both radial basis function networks showing that the proposed neuro controller can be trained in a short period of time and is robust.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116629842","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}
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