Pub Date : 1993-06-01DOI: 10.1109/ISIE.1993.268765
L. Ribickis, M. Liepiņš, L. Rutmanis, J. Stabulnieks
A new approach to real approximation of an ideal sinusoidal frequency conversion process is put forward. This enables the output frequency range of line-commutated direct frequency converters to be expanded up to the value of input frequency. This is achieved by the application of a low frequency value sinusoidal modulating function and the replacement of input voltage and modulating function product with approaching input voltage level intervals. An example of this frequency conversion in terms of the simplest six thyristor circuit is considered for a fan drive.<>
{"title":"Alternative solution of direct frequency conversion for AC drives","authors":"L. Ribickis, M. Liepiņš, L. Rutmanis, J. Stabulnieks","doi":"10.1109/ISIE.1993.268765","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268765","url":null,"abstract":"A new approach to real approximation of an ideal sinusoidal frequency conversion process is put forward. This enables the output frequency range of line-commutated direct frequency converters to be expanded up to the value of input frequency. This is achieved by the application of a low frequency value sinusoidal modulating function and the replacement of input voltage and modulating function product with approaching input voltage level intervals. An example of this frequency conversion in terms of the simplest six thyristor circuit is considered for a fan drive.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"14 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":"127026596","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.1993.268731
S. Milanesi, A. Rovetta, R. Sala, A. Togno, X. Wen
Force feedback is a basic element in realizations for telemanipulation and virtual reality. In telemanipulation, tactile but especially force information permits the remote operator to carry out efficiently operations which would otherwise be difficult to perform; nevertheless it permits a better simulation and interaction of virtual environment in the case of virtual reality. A system for grasping objects was projected and realized in a robotics laboratory. The operator wearing a glove drives a mechanical hand, having a force sensor on his own hand. This increases the performance of the telemanipulation system. The whole project is explained with particular attention to the control system of stepping motors used for force feedback.<>
{"title":"Utilization of stepping motors in the realization of a prototype of perceptive glove with feedback force for telerobotics","authors":"S. Milanesi, A. Rovetta, R. Sala, A. Togno, X. Wen","doi":"10.1109/ISIE.1993.268731","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268731","url":null,"abstract":"Force feedback is a basic element in realizations for telemanipulation and virtual reality. In telemanipulation, tactile but especially force information permits the remote operator to carry out efficiently operations which would otherwise be difficult to perform; nevertheless it permits a better simulation and interaction of virtual environment in the case of virtual reality. A system for grasping objects was projected and realized in a robotics laboratory. The operator wearing a glove drives a mechanical hand, having a force sensor on his own hand. This increases the performance of the telemanipulation system. The whole project is explained with particular attention to the control system of stepping motors used for force feedback.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"5 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":"127181437","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.1993.268726
K. Huh, Hankyung Bae
A design method of a brushless DC type AC servomotor drive system is presented. The servomotor drive system is designed to be applied to factory automation. The AC servomotor used is a trapezoidal type designed and made by Daewoo Heavy Industries Ltd. The drive system consists of a velocity controller, current controller and inverter. In the drive system a power transistor is used as the switching device and a 16 bit, one chip microprocessor is applied for the implementation of digital control. The velocity control algorithm is basically PI control with appropriate filtering. The current controller is also based on PI control, which is implemented in analog circuits to reduce the time delay effect. The designed servomotor drive shows good performance up to a velocity of 4500 RPM, which is sufficient for most factory automation applications.<>
{"title":"A design of AC servo motor drive system-BLDC type","authors":"K. Huh, Hankyung Bae","doi":"10.1109/ISIE.1993.268726","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268726","url":null,"abstract":"A design method of a brushless DC type AC servomotor drive system is presented. The servomotor drive system is designed to be applied to factory automation. The AC servomotor used is a trapezoidal type designed and made by Daewoo Heavy Industries Ltd. The drive system consists of a velocity controller, current controller and inverter. In the drive system a power transistor is used as the switching device and a 16 bit, one chip microprocessor is applied for the implementation of digital control. The velocity control algorithm is basically PI control with appropriate filtering. The current controller is also based on PI control, which is implemented in analog circuits to reduce the time delay effect. The designed servomotor drive shows good performance up to a velocity of 4500 RPM, which is sufficient for most factory automation applications.<<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":"131014678","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.1993.268747
A. Abdulaziz, M. Farsi
The paper describes a new neural network Controller using an IMC structure (NIMC). The structure is suitable for control of discrete-time SISO systems containing nonlinearities. Two design steps are assumed: (1) the controller is designed for optimal set-point tracking and disturbance rejection or model uncertainty and (2) the controller is detuned for robust performance. Comparative studies between NIMC and a conventional nonlinear adaptive controller is made.<>
{"title":"Dynamic modelling and control for a class of non-linear systems using neural nets","authors":"A. Abdulaziz, M. Farsi","doi":"10.1109/ISIE.1993.268747","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268747","url":null,"abstract":"The paper describes a new neural network Controller using an IMC structure (NIMC). The structure is suitable for control of discrete-time SISO systems containing nonlinearities. Two design steps are assumed: (1) the controller is designed for optimal set-point tracking and disturbance rejection or model uncertainty and (2) the controller is detuned for robust performance. Comparative studies between NIMC and a conventional nonlinear adaptive controller is made.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"56 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":"131228872","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.1993.268801
Y. Dote, M. Strefezza, A. Suyitno
The authors describe and approximate zeroing with an equivalent disturbance observer and predictive controller for drive systems. Then this linear controller structure is changed by fuzzy logic such that the controller makes the system respond quickly if the error is large and vice versa in order to obtain a robust controller which is insensitive to both the plant noise and the observation noise. Next, a variable structure PI controller by fuzzy logic for the drive systems is introduced. Then, this control scheme is implemented with neural networks. These controllers are realized with digital signal processors. The experimental results are given. Lastly, the applications of neuro fuzzy methods to inverters, converters, motion controls and sensors are explained.<>
{"title":"Neuro fuzzy robust controllers for drive systems","authors":"Y. Dote, M. Strefezza, A. Suyitno","doi":"10.1109/ISIE.1993.268801","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268801","url":null,"abstract":"The authors describe and approximate zeroing with an equivalent disturbance observer and predictive controller for drive systems. Then this linear controller structure is changed by fuzzy logic such that the controller makes the system respond quickly if the error is large and vice versa in order to obtain a robust controller which is insensitive to both the plant noise and the observation noise. Next, a variable structure PI controller by fuzzy logic for the drive systems is introduced. Then, this control scheme is implemented with neural networks. These controllers are realized with digital signal processors. The experimental results are given. Lastly, the applications of neuro fuzzy methods to inverters, converters, motion controls and sensors are explained.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"65 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":"131259414","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.1993.268773
M. Ikeda, H. Hashimoto, F. Harashima
The authors have developed a wire-driven system with a linear actuator. After parameter identification as a 2-mass model, three robust control methods are tested: observer-based control, sliding mode control and H/sub infinity / control. The H/sub infinity / controller shows the best performance. Further this paper shows details of the design method of the H/sub infinity / controller.<>
{"title":"Robust control of linear DC motor using DSP","authors":"M. Ikeda, H. Hashimoto, F. Harashima","doi":"10.1109/ISIE.1993.268773","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268773","url":null,"abstract":"The authors have developed a wire-driven system with a linear actuator. After parameter identification as a 2-mass model, three robust control methods are tested: observer-based control, sliding mode control and H/sub infinity / control. The H/sub infinity / controller shows the best performance. Further this paper shows details of the design method of the H/sub infinity / controller.<<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":"132483800","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.1993.268819
A. Wallace, R. Spée, G. C. Alexander
The paper describes a project to replace the drive of a pump in a waste water treatment facility. The existing drive has a peak output of 45 kW and is required to operate between 600 and 850 r/min which is obtained from a slip-ring wound-rotor induction motor using rotor resistive control. Of several possible electronically controlled drive configurations, the brushless doubly-fed machine has been selected for trial installation because of the advantages it appears to offer in this application.<>
{"title":"The brushless doubly-fed motor as a limited-speed-range pump drive","authors":"A. Wallace, R. Spée, G. C. Alexander","doi":"10.1109/ISIE.1993.268819","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268819","url":null,"abstract":"The paper describes a project to replace the drive of a pump in a waste water treatment facility. The existing drive has a peak output of 45 kW and is required to operate between 600 and 850 r/min which is obtained from a slip-ring wound-rotor induction motor using rotor resistive control. Of several possible electronically controlled drive configurations, the brushless doubly-fed machine has been selected for trial installation because of the advantages it appears to offer in this application.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"2 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":"134342907","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.1993.268715
M. Terbuc, K. Jezernik, A. Zimšek
A highly sophisticated robot controller with enhanced performance is very efficacious for laboratory use. The programming of the task in the robot task space and integration of external sensors becomes more important to the user. Available commercial robot controllers are 'black boxes' and they are unable to be modified. The authors' multiprocessor laboratory robot controller is an open system and with transputers as central processors, they achieved great processing power and very fast communication. In this way, parallel computing became possible and execution times were reduced to 1 ms. An open system of this kind allows the use of various control algorithms, the described joint acceleration controller in Cartesian space being one of them, as well as the integration of external sensors.<>
{"title":"Transputer based multiprocessor robot controller","authors":"M. Terbuc, K. Jezernik, A. Zimšek","doi":"10.1109/ISIE.1993.268715","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268715","url":null,"abstract":"A highly sophisticated robot controller with enhanced performance is very efficacious for laboratory use. The programming of the task in the robot task space and integration of external sensors becomes more important to the user. Available commercial robot controllers are 'black boxes' and they are unable to be modified. The authors' multiprocessor laboratory robot controller is an open system and with transputers as central processors, they achieved great processing power and very fast communication. In this way, parallel computing became possible and execution times were reduced to 1 ms. An open system of this kind allows the use of various control algorithms, the described joint acceleration controller in Cartesian space being one of them, as well as the integration of external sensors.<<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":"134201485","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.1993.268722
M. Horváth, J. Borka
Inert gas welding technology with wolfram electrodes requires AC current for welding aluminium. The technology process gives special requirements to the power converter of type AC/AWI welding units suitable for welding aluminium. Namely, this requires the fast changing of the polarity of some hundred ampere DC current. The paper deals with the theoretical and experimental analysis of a circuit arrangement of a special power converter suitable for the described task. The project has been financed by the National Committee for Technical Development of Hungary.<>
{"title":"Forming some hundred ampere AC current with high rate of rise applying high frequency energy converter","authors":"M. Horváth, J. Borka","doi":"10.1109/ISIE.1993.268722","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268722","url":null,"abstract":"Inert gas welding technology with wolfram electrodes requires AC current for welding aluminium. The technology process gives special requirements to the power converter of type AC/AWI welding units suitable for welding aluminium. Namely, this requires the fast changing of the polarity of some hundred ampere DC current. The paper deals with the theoretical and experimental analysis of a circuit arrangement of a special power converter suitable for the described task. The project has been financed by the National Committee for Technical Development of Hungary.<<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":"126393262","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.1993.268708
M. Akherraz
This paper presents the analysis and design of a series DC to DC resonant converter for railroad applications. The proposed power converter is based on IGBT modules for the AC-DC link and fast power diodes for the AC-DC conversion. The application sought is a SMPS for start-up verification of mechanical, electrical and electronic systems of train locomotives. A special feature of this converter is the use of a variable air-gap transformer in the AC link. Twelve possible operating sequences, during resonant commutation, are detailed in an analytical investigation. Experimental results are presented and commented upon.<>
{"title":"Analysis and design of a DC to DC resonant converter for railroad applications","authors":"M. Akherraz","doi":"10.1109/ISIE.1993.268708","DOIUrl":"https://doi.org/10.1109/ISIE.1993.268708","url":null,"abstract":"This paper presents the analysis and design of a series DC to DC resonant converter for railroad applications. The proposed power converter is based on IGBT modules for the AC-DC link and fast power diodes for the AC-DC conversion. The application sought is a SMPS for start-up verification of mechanical, electrical and electronic systems of train locomotives. A special feature of this converter is the use of a variable air-gap transformer in the AC link. Twelve possible operating sequences, during resonant commutation, are detailed in an analytical investigation. Experimental results are presented and commented upon.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"150 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":"127027215","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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