Pub Date : 2002-08-06DOI: 10.1109/IECON.1998.724181
T. Ching, K. Chau, C. Chan
A novel two-quadrant (2Q) zero-current-transition (ZCT) converter with the capabilities of 2Q power flow, and ZCT switching profile for DC motor drives is presented. It possesses the advantages that both the main and auxiliary switches can operate with zero-current switching (ZCS), reduced switching losses and stresses, minimum voltage and current stresses as well as minimum circulating energy during both the motoring and regenerating modes. This converter is particularly useful for DC traction systems in which both motoring and regenerative braking are desired to have high efficiency.
{"title":"A novel two-quadrant zero-current-transition converter for DC motor drives","authors":"T. Ching, K. Chau, C. Chan","doi":"10.1109/IECON.1998.724181","DOIUrl":"https://doi.org/10.1109/IECON.1998.724181","url":null,"abstract":"A novel two-quadrant (2Q) zero-current-transition (ZCT) converter with the capabilities of 2Q power flow, and ZCT switching profile for DC motor drives is presented. It possesses the advantages that both the main and auxiliary switches can operate with zero-current switching (ZCS), reduced switching losses and stresses, minimum voltage and current stresses as well as minimum circulating energy during both the motoring and regenerating modes. This converter is particularly useful for DC traction systems in which both motoring and regenerative braking are desired to have high efficiency.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131871581","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 : 2002-08-06DOI: 10.1109/IECON.1998.724213
T. Ching, K. Chau, C. Chan
A new zero-voltage-transition (ZVT) converter for switched reluctance motor drives is presented. The proposed ZVT converter possesses the definite advantages that both main transistors and diodes can operate with zero-voltage switching (ZVS), unity device voltage and current stresses. It is a very desirable feature for high frequency switching power conversion where power MOSFETs are used. This converter is especially advantageous for switched reluctance motor drives demanding efficient regenerative braking, such as electric vehicle application.
{"title":"A novel zero-voltage soft-switching converter for switched reluctance motor drives","authors":"T. Ching, K. Chau, C. Chan","doi":"10.1109/IECON.1998.724213","DOIUrl":"https://doi.org/10.1109/IECON.1998.724213","url":null,"abstract":"A new zero-voltage-transition (ZVT) converter for switched reluctance motor drives is presented. The proposed ZVT converter possesses the definite advantages that both main transistors and diodes can operate with zero-voltage switching (ZVS), unity device voltage and current stresses. It is a very desirable feature for high frequency switching power conversion where power MOSFETs are used. This converter is especially advantageous for switched reluctance motor drives demanding efficient regenerative braking, such as electric vehicle application.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124128602","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 : 2002-08-06DOI: 10.1109/IECON.1998.723983
T. Sano, H. Nagahata, Hideki Yamamoto
The Japanese kimono has the same shape and the basic size, regardless of the wearer's form. This simplicity of form makes its textile pattern most important to represent the wearer's personality and beauty. As it is difficult for beginners to imagine the look of wearing the kimono, it makes designs hard. So, we developed a design support system for the Japanese kimono. The authors describe the CAD system, design of the striped kimono, and detecting the edge of the stripe.
{"title":"Design support system for Japanese kimono","authors":"T. Sano, H. Nagahata, Hideki Yamamoto","doi":"10.1109/IECON.1998.723983","DOIUrl":"https://doi.org/10.1109/IECON.1998.723983","url":null,"abstract":"The Japanese kimono has the same shape and the basic size, regardless of the wearer's form. This simplicity of form makes its textile pattern most important to represent the wearer's personality and beauty. As it is difficult for beginners to imagine the look of wearing the kimono, it makes designs hard. So, we developed a design support system for the Japanese kimono. The authors describe the CAD system, design of the striped kimono, and detecting the edge of the stripe.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133447892","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 : 2000-10-01DOI: 10.1109/IECON.1998.723027
Dominik Füssel, R. Isermann
Fault diagnosis requires a classification system that can distinguish between different faults based on observed symptoms of the process under investigation. Since the fault symptom relationships are not always known beforehand, a system is needed which can be learned from experimental or simulated data. A fuzzy logic based diagnosis is advantageous. It allows an easy incorporation of a-priori known rules and also enables the user to understand the inference of the system. In this contribution, a new diagnosis scheme is presented and applied to a DC motor. The approach is based on a combination of structural a-priori knowledge and measured data in order to create a hierarchical diagnosis system that can be adapted to different motors. Advantages of the system are its high degree of transparency and an increased robustness.
{"title":"Hierarchical motor diagnosis utilizing structural knowledge and a self-learning neuro-fuzzy scheme","authors":"Dominik Füssel, R. Isermann","doi":"10.1109/IECON.1998.723027","DOIUrl":"https://doi.org/10.1109/IECON.1998.723027","url":null,"abstract":"Fault diagnosis requires a classification system that can distinguish between different faults based on observed symptoms of the process under investigation. Since the fault symptom relationships are not always known beforehand, a system is needed which can be learned from experimental or simulated data. A fuzzy logic based diagnosis is advantageous. It allows an easy incorporation of a-priori known rules and also enables the user to understand the inference of the system. In this contribution, a new diagnosis scheme is presented and applied to a DC motor. The approach is based on a combination of structural a-priori knowledge and measured data in order to create a hierarchical diagnosis system that can be adapted to different motors. Advantages of the system are its high degree of transparency and an increased robustness.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116624177","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 : 1998-12-01DOI: 10.1109/IECON.1998.723004
I. Godler, M. Hashimoto
Force control is an important segment of intelligent motion control systems. To provide a high quality force control, it is necessary to make a bandwidth of the system as high as possible. Force or torque sensing therefore should be built into the existing components of a system. We study a possibility to build torque sensing into a harmonic drive gear reducer. Positioning of the strain gages to cancel the signal modulation is proposed. High linearity of sensing is achieved. Torque control by using a torque disturbance observer is implemented to improve static and dynamic characteristics of a control system with harmonic drive gear reducer. Experimental results of torque control are shown.
{"title":"Torque control of harmonic drive gears with built-in sensing","authors":"I. Godler, M. Hashimoto","doi":"10.1109/IECON.1998.723004","DOIUrl":"https://doi.org/10.1109/IECON.1998.723004","url":null,"abstract":"Force control is an important segment of intelligent motion control systems. To provide a high quality force control, it is necessary to make a bandwidth of the system as high as possible. Force or torque sensing therefore should be built into the existing components of a system. We study a possibility to build torque sensing into a harmonic drive gear reducer. Positioning of the strain gages to cancel the signal modulation is proposed. High linearity of sensing is achieved. Torque control by using a torque disturbance observer is implemented to improve static and dynamic characteristics of a control system with harmonic drive gear reducer. Experimental results of torque control are shown.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128239906","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 : 1998-08-31DOI: 10.1109/IECON.1998.723031
N. Arthur, J. Penman, A. McLean, A. Parsons
This paper is the second of a two part submission investigating the use of higher order spectra (HOS) as an induction machine condition monitoring tool. Part I investigated the fundamental aspects of this technique and examined fault detection with a sinusoidal supply to the induction machine. Part II goes on to extend the techniques introduced previously to include the condition monitoring of variable speed induction machine operation. The fault conditions investigated in Part I are re-examined for a variable speed, inverter-fed induction machine. It is shown that the previously introduced techniques are entirely general and extend to nonsinusoidal, variable speed induction machine operation without modification. The second part of this paper then goes on to describe the automation of the HOS based predictive frequency method of induction machine condition monitoring. The design, development and testing of a software based induction machine condition monitoring tool is described. The tool removes the need for experienced operator judgment and automatically diagnoses common fault conditions regardless of the machine load, speed or supply type. In addition, the software is constructed from inexpensive, readily available components and is based on the previous work of parts I and II of this paper.
{"title":"Induction machine condition monitoring with higher order spectra. II. Variable frequency operation and automated diagnosis","authors":"N. Arthur, J. Penman, A. McLean, A. Parsons","doi":"10.1109/IECON.1998.723031","DOIUrl":"https://doi.org/10.1109/IECON.1998.723031","url":null,"abstract":"This paper is the second of a two part submission investigating the use of higher order spectra (HOS) as an induction machine condition monitoring tool. Part I investigated the fundamental aspects of this technique and examined fault detection with a sinusoidal supply to the induction machine. Part II goes on to extend the techniques introduced previously to include the condition monitoring of variable speed induction machine operation. The fault conditions investigated in Part I are re-examined for a variable speed, inverter-fed induction machine. It is shown that the previously introduced techniques are entirely general and extend to nonsinusoidal, variable speed induction machine operation without modification. The second part of this paper then goes on to describe the automation of the HOS based predictive frequency method of induction machine condition monitoring. The design, development and testing of a software based induction machine condition monitoring tool is described. The tool removes the need for experienced operator judgment and automatically diagnoses common fault conditions regardless of the machine load, speed or supply type. In addition, the software is constructed from inexpensive, readily available components and is based on the previous work of parts I and II of this paper.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115676729","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 : 1998-08-31DOI: 10.1109/IECON.1998.723874
V. Lopota
An application of the new physical principles for a construction of the measuring and executing devices in robotic and industrial systems together with a development of intelligent control means create a basis for the appearance of new cybernetic systems. However, a synergy effect of such developments will be achieved only in the case when developed devices form a united system via a multipurpose network infrastructure to ensure information interaction with control components, with operators or other network devices. Such an infrastructure has to be designed on the basis of an adaptive model of the network interaction that takes into consideration the changes of the data transmission medium states to provide required parameters of the network service: transmission time, capacity, etc. Such expansion of the functional possibilities permits to expand the information and control means of the developed devices essentially and to consider them as components of the united cyberspace. From the point of view of the control methods, the metrics of such space has the dimension of time and describes the dynamics of the processes of information transmission between its components. The examples of the development of new measuring and executing devices equipped with network interaction means are considered in this paper. The various aspects of the information infrastructure design with the goal of intelligent robotics development are also analyzed.
{"title":"Synergy in cyberspace: intelligent control of software and hardware components in robotic systems","authors":"V. Lopota","doi":"10.1109/IECON.1998.723874","DOIUrl":"https://doi.org/10.1109/IECON.1998.723874","url":null,"abstract":"An application of the new physical principles for a construction of the measuring and executing devices in robotic and industrial systems together with a development of intelligent control means create a basis for the appearance of new cybernetic systems. However, a synergy effect of such developments will be achieved only in the case when developed devices form a united system via a multipurpose network infrastructure to ensure information interaction with control components, with operators or other network devices. Such an infrastructure has to be designed on the basis of an adaptive model of the network interaction that takes into consideration the changes of the data transmission medium states to provide required parameters of the network service: transmission time, capacity, etc. Such expansion of the functional possibilities permits to expand the information and control means of the developed devices essentially and to consider them as components of the united cyberspace. From the point of view of the control methods, the metrics of such space has the dimension of time and describes the dynamics of the processes of information transmission between its components. The examples of the development of new measuring and executing devices equipped with network interaction means are considered in this paper. The various aspects of the information infrastructure design with the goal of intelligent robotics development are also analyzed.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116717615","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 : 1998-08-31DOI: 10.1109/IECON.1998.724198
H. Ogiwara, M. Nakaoka
This paper presents the soft switching mode DC-DC converter using bipolar mode static induction transistor (B-SIT). The proposed DC-DC converter is obtained by soft-switching mode voltage-clamped phase-shifting output voltage controlled half bridge resonant inverter with bridge rectifier. This converter efficiently operates at zero-current soft switching mode in order to minimize switching losses and electrical stresses of the switching device over a wide voltage regulation range. Experimental results of the proposed converter show the conversion efficiency of 94% at a switching frequency of 100 kHz.
{"title":"Phasor shifting voltage control soft switching mode resonant DC-DC converter using SI device","authors":"H. Ogiwara, M. Nakaoka","doi":"10.1109/IECON.1998.724198","DOIUrl":"https://doi.org/10.1109/IECON.1998.724198","url":null,"abstract":"This paper presents the soft switching mode DC-DC converter using bipolar mode static induction transistor (B-SIT). The proposed DC-DC converter is obtained by soft-switching mode voltage-clamped phase-shifting output voltage controlled half bridge resonant inverter with bridge rectifier. This converter efficiently operates at zero-current soft switching mode in order to minimize switching losses and electrical stresses of the switching device over a wide voltage regulation range. Experimental results of the proposed converter show the conversion efficiency of 94% at a switching frequency of 100 kHz.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116889952","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 : 1998-08-31DOI: 10.1109/IECON.1998.723022
C. Jacobina, Antonio M. N. Lima, A.C. Oliveira, E. D. da Silva
This paper presents the design of the controller for the stator current of an induction motor. In the design of the controller the use of synchronous and stationary reference frames is considered. It is also investigated how the controller design is influenced by the selection of the sampling period. Besides that, it is discussed how to exploit the capability of modern power converters to operate at high switching frequencies to improve the performance of the drive system. Simulation and experimental results are presented.
{"title":"PWM current controllers in the synchronous and stationary reference frame with different sampling and converter switching frequencies","authors":"C. Jacobina, Antonio M. N. Lima, A.C. Oliveira, E. D. da Silva","doi":"10.1109/IECON.1998.723022","DOIUrl":"https://doi.org/10.1109/IECON.1998.723022","url":null,"abstract":"This paper presents the design of the controller for the stator current of an induction motor. In the design of the controller the use of synchronous and stationary reference frames is considered. It is also investigated how the controller design is influenced by the selection of the sampling period. Besides that, it is discussed how to exploit the capability of modern power converters to operate at high switching frequencies to improve the performance of the drive system. Simulation and experimental results are presented.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116954234","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 : 1998-08-31DOI: 10.1109/IECON.1998.724199
F. Monterde, J. Burdío, P. Hernandez, J.R. Garcia
Generally, power inverters for induction cooking appliances are controlled by varying frequency to control current through the inductor coil. When more than one power converter is operated at different frequencies greater than audible noise upper threshold, low frequency interharmonics are generated in common impedance due to nonlinear effects. Suppression of audible noise in multiple-coils induction cookers leads to high-performance fixed-frequency control. This paper presents a new unipolar voltage-cancellation control for series resonant inverters. This control strategy is used in full-bridge topologies for induction cookers, allowing fixed frequency control with ZVS operation over a wide power range. Performance of current-mode and voltage-cancellation is improved. This control is implemented in a series-resonant full-bridge inverter for induction cookers using IGBTs and digital control implemented in a PLD which can be easily implemented in an ASIC for mass production.
{"title":"Unipolar voltage-cancellation control of resonant inverters for induction cooking appliances","authors":"F. Monterde, J. Burdío, P. Hernandez, J.R. Garcia","doi":"10.1109/IECON.1998.724199","DOIUrl":"https://doi.org/10.1109/IECON.1998.724199","url":null,"abstract":"Generally, power inverters for induction cooking appliances are controlled by varying frequency to control current through the inductor coil. When more than one power converter is operated at different frequencies greater than audible noise upper threshold, low frequency interharmonics are generated in common impedance due to nonlinear effects. Suppression of audible noise in multiple-coils induction cookers leads to high-performance fixed-frequency control. This paper presents a new unipolar voltage-cancellation control for series resonant inverters. This control strategy is used in full-bridge topologies for induction cookers, allowing fixed frequency control with ZVS operation over a wide power range. Performance of current-mode and voltage-cancellation is improved. This control is implemented in a series-resonant full-bridge inverter for induction cookers using IGBTs and digital control implemented in a PLD which can be easily implemented in an ASIC for mass production.","PeriodicalId":377136,"journal":{"name":"IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)","volume":"3 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120976086","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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