Pub Date : 2001-11-29DOI: 10.1109/IECON.2001.975859
T. Furukawa, M. Ashikawa, Y. Ueda, M. Ohchi
The authors have proposed the voltage-current sensor embedded in a ceramic insulator for the real time observation of the power factor in three-phase power distribution systems and carried out the finite element analysis of it to investigate its characteristics and verify its feasibility. However, the sensor will have problems with production costs and manufacturing process. In the paper, the authors propose a new resin molded type of voltage-current sensor with a compensation winding for the current sensor part and discuss its electromagnetic behavior and the constitution of four kinds of electrodes theoretically.
{"title":"Resin molded type of voltage-current sensor for real-time measurement of power factor in power distribution systems","authors":"T. Furukawa, M. Ashikawa, Y. Ueda, M. Ohchi","doi":"10.1109/IECON.2001.975859","DOIUrl":"https://doi.org/10.1109/IECON.2001.975859","url":null,"abstract":"The authors have proposed the voltage-current sensor embedded in a ceramic insulator for the real time observation of the power factor in three-phase power distribution systems and carried out the finite element analysis of it to investigate its characteristics and verify its feasibility. However, the sensor will have problems with production costs and manufacturing process. In the paper, the authors propose a new resin molded type of voltage-current sensor with a compensation winding for the current sensor part and discuss its electromagnetic behavior and the constitution of four kinds of electrodes theoretically.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121209339","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 : 2001-11-29DOI: 10.1109/IECON.2001.976445
M. Efe, O. Kaynak, B. Wilamowski, Xinghuo Yu
Biochemical processes often display a complicated dynamic behavior, the detailed understanding of which frequently constitutes a barrier between the theoretical foundations and practical implementations. One way of handling the complexity is to use intelligent approaches in the design of controllers. The paper presents an analytic approach to design controllers based on radial basis function neural networks (RBFNN) with particular emphasis on the extraction of the error measure to be used in parameter tuning. The simulation studies stipulate that the control system exhibits a highly robust behavior against disturbances and sharp changes in the command signal. The most important contribution of the paper is that the method presented does not require the analytical details describing the plant dynamics available.
{"title":"Radial basis function neural networks in variable structure control of a class of biochemical processes","authors":"M. Efe, O. Kaynak, B. Wilamowski, Xinghuo Yu","doi":"10.1109/IECON.2001.976445","DOIUrl":"https://doi.org/10.1109/IECON.2001.976445","url":null,"abstract":"Biochemical processes often display a complicated dynamic behavior, the detailed understanding of which frequently constitutes a barrier between the theoretical foundations and practical implementations. One way of handling the complexity is to use intelligent approaches in the design of controllers. The paper presents an analytic approach to design controllers based on radial basis function neural networks (RBFNN) with particular emphasis on the extraction of the error measure to be used in parameter tuning. The simulation studies stipulate that the control system exhibits a highly robust behavior against disturbances and sharp changes in the command signal. The most important contribution of the paper is that the method presented does not require the analytical details describing the plant dynamics available.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114945064","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 : 2001-11-29DOI: 10.1109/IECON.2001.975571
N. Almutairi, M. Chow, Y. Tipsuwan
This paper introduces a fuzzy logic compensation approach for the network-based controlled DC motor. The approach is based on modulating the control signal provided by the central controller in the network-based system with a single parameter. The inputs to the fuzzy compensator are the error signal between the reference and the actual output of the DC motor, and the output signal from the PI controller. The output from the fuzzy compensator is the modulator parameter. This parameter modulates the output of the PI controller in order to reduce the effect of the network delays and different available bandwidth. The results show that using fuzzy compensation can be an effective approach to improve the performance of the DC motor controlled through the network.
{"title":"Network-based controlled DC motor with fuzzy compensation","authors":"N. Almutairi, M. Chow, Y. Tipsuwan","doi":"10.1109/IECON.2001.975571","DOIUrl":"https://doi.org/10.1109/IECON.2001.975571","url":null,"abstract":"This paper introduces a fuzzy logic compensation approach for the network-based controlled DC motor. The approach is based on modulating the control signal provided by the central controller in the network-based system with a single parameter. The inputs to the fuzzy compensator are the error signal between the reference and the actual output of the DC motor, and the output signal from the PI controller. The output from the fuzzy compensator is the modulator parameter. This parameter modulates the output of the PI controller in order to reduce the effect of the network delays and different available bandwidth. The results show that using fuzzy compensation can be an effective approach to improve the performance of the DC motor controlled through the network.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115457512","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 : 2001-11-29DOI: 10.1109/IECON.2001.976519
K. Kato, K. Inoue, T. Arai, Y. Mae
A cooperative control method for multiple robots for transporting single object is proposed, which is effective in unknown environment. All robots are controlled by the same algorithm, and they can have different objective. tasks simultaneously. Hence the method can deal with the situation where one robot has "trajectory tracking task" and another robot which detects an obstacle has "obstacle avoidance task". A task is expressed as the desired position of the object and the associated weight matrix, and each robot can set its own desired position and weight matrix independently of the other robots' tasks. This method requires no real-time communication among the robots. The robots can cooperatively transport the object to the composite desired position which is the weighted mid point of all desired positions. The forces between the robots and the object are controlled as equally as possible during transportation, and exceeding forces can be suppressed. The effectiveness and usefulness of the method are ascertained by computer simulation.
{"title":"Cooperative control and force limitation for multiple robots in single object transportation","authors":"K. Kato, K. Inoue, T. Arai, Y. Mae","doi":"10.1109/IECON.2001.976519","DOIUrl":"https://doi.org/10.1109/IECON.2001.976519","url":null,"abstract":"A cooperative control method for multiple robots for transporting single object is proposed, which is effective in unknown environment. All robots are controlled by the same algorithm, and they can have different objective. tasks simultaneously. Hence the method can deal with the situation where one robot has \"trajectory tracking task\" and another robot which detects an obstacle has \"obstacle avoidance task\". A task is expressed as the desired position of the object and the associated weight matrix, and each robot can set its own desired position and weight matrix independently of the other robots' tasks. This method requires no real-time communication among the robots. The robots can cooperatively transport the object to the composite desired position which is the weighted mid point of all desired positions. The forces between the robots and the object are controlled as equally as possible during transportation, and exceeding forces can be suppressed. The effectiveness and usefulness of the method are ascertained by computer simulation.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116226584","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 : 2001-11-29DOI: 10.1109/IECON.2001.975889
M. Benghanem, A. Draou, A. Tahri
This paper presents a study of the dynamic performance analysis of an advanced static VAr compensator (ASVC) using a three-level voltage source inverter. The analysis is based on the modelling of the system in the d-q axis. The dynamic behaviour of the system is analysed using Simulink with PLECS toolbox through a set of simulation tests.
{"title":"Reactive power control in distribution system using an NPC inverter topology","authors":"M. Benghanem, A. Draou, A. Tahri","doi":"10.1109/IECON.2001.975889","DOIUrl":"https://doi.org/10.1109/IECON.2001.975889","url":null,"abstract":"This paper presents a study of the dynamic performance analysis of an advanced static VAr compensator (ASVC) using a three-level voltage source inverter. The analysis is based on the modelling of the system in the d-q axis. The dynamic behaviour of the system is analysed using Simulink with PLECS toolbox through a set of simulation tests.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122390429","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 : 2001-11-29DOI: 10.1109/IECON.2001.976493
L. Horváth, I. Rudas
Description of product information in conventional computer models includes simple facts appropriate as input information for creation of derived model entities as additional product objects, finite elements and manufacturing processes. The related procedures are controlled by humans interactively. In order to do this effectively, humans need information about original decisions resulted the model information, especially when an original design should be modified in order to its development or fit it to changed environmental conditions. As preliminaries of the work reported in this paper, the authors proposed a method for description of design intent information in product models that assists engineers at application and modification of earlier defined model entities. As a contribution to bring this method into application, this paper has two purposes. The first is to introduce role of intent model and the problematic of its integration in product model. The second one is a discussion of characteristics of intent model as composition, elements and relations. The paper is organized accordingly. An additional discussion highlights some implementation issues for modeling intent in the industrial practice.
{"title":"Modeling of the background of human activities in engineering modeling","authors":"L. Horváth, I. Rudas","doi":"10.1109/IECON.2001.976493","DOIUrl":"https://doi.org/10.1109/IECON.2001.976493","url":null,"abstract":"Description of product information in conventional computer models includes simple facts appropriate as input information for creation of derived model entities as additional product objects, finite elements and manufacturing processes. The related procedures are controlled by humans interactively. In order to do this effectively, humans need information about original decisions resulted the model information, especially when an original design should be modified in order to its development or fit it to changed environmental conditions. As preliminaries of the work reported in this paper, the authors proposed a method for description of design intent information in product models that assists engineers at application and modification of earlier defined model entities. As a contribution to bring this method into application, this paper has two purposes. The first is to introduce role of intent model and the problematic of its integration in product model. The second one is a discussion of characteristics of intent model as composition, elements and relations. The paper is organized accordingly. An additional discussion highlights some implementation issues for modeling intent in the industrial practice.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122481074","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 : 2001-11-29DOI: 10.1109/IECON.2001.976556
G. Suh, D. Hyun, Jung-il Park, Ki Dong Lee, S. Lee
In a two-inertia motor system with flexible shaft, a torsional vibration is often generated, as a quick speed response close to the primary resonant frequency is required. This vibration makes it difficult to achieve a quick response of speed and disturbance rejection. The objective of this paper is to provide a systematic analysis and a design of a pole placement controller by using the weighted ITAE performance index for a two-inertia motor system. Three kinds of speed controllers (I-P, I-PD, and state feedback) are used. The simulation results show that the full state feedback controller has the best performance compared to other controllers in terms of oscillation and settling time. The proposed controller is expected to be the standard for controlling a two-inertia motor system with flexible shaft.
{"title":"Design of a pole placement controller for reducing oscillation and settling time in a two-inertia motor system","authors":"G. Suh, D. Hyun, Jung-il Park, Ki Dong Lee, S. Lee","doi":"10.1109/IECON.2001.976556","DOIUrl":"https://doi.org/10.1109/IECON.2001.976556","url":null,"abstract":"In a two-inertia motor system with flexible shaft, a torsional vibration is often generated, as a quick speed response close to the primary resonant frequency is required. This vibration makes it difficult to achieve a quick response of speed and disturbance rejection. The objective of this paper is to provide a systematic analysis and a design of a pole placement controller by using the weighted ITAE performance index for a two-inertia motor system. Three kinds of speed controllers (I-P, I-PD, and state feedback) are used. The simulation results show that the full state feedback controller has the best performance compared to other controllers in terms of oscillation and settling time. The proposed controller is expected to be the standard for controlling a two-inertia motor system with flexible shaft.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128723352","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 : 2001-11-29DOI: 10.1109/IECON.2001.976491
F. Cheng, Shang-Lun Wu, Chih-Feng Chang
The manufacturing industry needs highly flexible manufacturing systems to cope with the complicated manufacturing environment. To meet the above requirements, we adopt the concepts that were derived from a study of social organizations and living organisms, and translate them into a set of appropriate concepts, such as holon and holarchy, for manufacturing industries. Holon and holarchy possess the properties of intelligence, autonomy, cooperation, reconfigurability, and extensibility. Advanced manufacturing systems also possess the capabilities of security certification and error recovery. Based on these properties, a systematic approach is proposed to develop a Holonic Manufacturing Execution System (HMES) for the semiconductor industry. This systematic approach is started with systems analysis by collecting domain requirements and analyzing domain knowledge. Then the HMES Holarchy is designed by: constructing an abstract object model based on domain knowledge; partitioning application domain into functional holons; identifying generic parts among functional holons; developing the Generic Holon; defining holarchy messages and holarchy framework of HMES; and finally designing functional holons based on the Generic Holon. This proposed systematic approach provides a novel and efficient way to design HMES.
{"title":"Systematic approach for developing Holonic Manufacturing Execution Systems","authors":"F. Cheng, Shang-Lun Wu, Chih-Feng Chang","doi":"10.1109/IECON.2001.976491","DOIUrl":"https://doi.org/10.1109/IECON.2001.976491","url":null,"abstract":"The manufacturing industry needs highly flexible manufacturing systems to cope with the complicated manufacturing environment. To meet the above requirements, we adopt the concepts that were derived from a study of social organizations and living organisms, and translate them into a set of appropriate concepts, such as holon and holarchy, for manufacturing industries. Holon and holarchy possess the properties of intelligence, autonomy, cooperation, reconfigurability, and extensibility. Advanced manufacturing systems also possess the capabilities of security certification and error recovery. Based on these properties, a systematic approach is proposed to develop a Holonic Manufacturing Execution System (HMES) for the semiconductor industry. This systematic approach is started with systems analysis by collecting domain requirements and analyzing domain knowledge. Then the HMES Holarchy is designed by: constructing an abstract object model based on domain knowledge; partitioning application domain into functional holons; identifying generic parts among functional holons; developing the Generic Holon; defining holarchy messages and holarchy framework of HMES; and finally designing functional holons based on the Generic Holon. This proposed systematic approach provides a novel and efficient way to design HMES.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128279375","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 : 2001-11-29DOI: 10.1109/IECON.2001.975625
L. L. Lo Bello, O. Mirabella
The Profibus is a token-based communication protocol widely used in distributed process control systems to support time-critical communication between field devices (sensors, actuators, controllers). At the field level the transmission dynamics of the stations may differ quite significantly according to the dynamics of the processes supported, but the Profibus protocol, even if it distinguishes between high-priority and low-priority traffic, cannot take the transmission dynamics of the stations into account. Thus, if the stations featuring high-priority traffic have greatly differing transmission dynamics, the token rotation speed is set according to the station with the fastest dynamic, and all the stations receive the token with the maximum frequency. Thus, at each rotation the token will be passed to a station even if it does not have high-priority traffic to transmit, and this causes drawbacks. To avoid them, the token should be passed to a station when it really has data to transmit, and more frequently to stations with faster dynamics. To this aim, this paper presents a strategy to modify the token passing policy, called the Rotating Ring, and compares its performance with that of the Profibus standard.
{"title":"A multi-ring scheduling strategy for Profibus networks","authors":"L. L. Lo Bello, O. Mirabella","doi":"10.1109/IECON.2001.975625","DOIUrl":"https://doi.org/10.1109/IECON.2001.975625","url":null,"abstract":"The Profibus is a token-based communication protocol widely used in distributed process control systems to support time-critical communication between field devices (sensors, actuators, controllers). At the field level the transmission dynamics of the stations may differ quite significantly according to the dynamics of the processes supported, but the Profibus protocol, even if it distinguishes between high-priority and low-priority traffic, cannot take the transmission dynamics of the stations into account. Thus, if the stations featuring high-priority traffic have greatly differing transmission dynamics, the token rotation speed is set according to the station with the fastest dynamic, and all the stations receive the token with the maximum frequency. Thus, at each rotation the token will be passed to a station even if it does not have high-priority traffic to transmit, and this causes drawbacks. To avoid them, the token should be passed to a station when it really has data to transmit, and more frequently to stations with faster dynamics. To this aim, this paper presents a strategy to modify the token passing policy, called the Rotating Ring, and compares its performance with that of the Profibus standard.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129069555","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 : 2001-11-29DOI: 10.1109/IECON.2001.975890
Hag-Wone Kim, G. Moon, Kwan-Youl Cho, M. Youn
A new single stage power factor corrected AC/DC converter for universal input is proposed, which is unified with a buck topology. The DC link voltage of the proposed converter is always lower than the peak input voltage at any load condition. Using this distinction, the problem of high DC link voltage under light load conditions of the single stage converter can be solved, especially when the application of universal input is required. The design example of the proposed converter for 5 V 12 A application is presented. The design considerations and experimental results for the proposed converter are also shown. The experimental results show that the line current harmonics can meet IEC 1000-3-2 Class D requirements for the line voltage from 90 Vrms to 260 Vrms.
{"title":"Single-stage high power factor converter with single-switch for universal input","authors":"Hag-Wone Kim, G. Moon, Kwan-Youl Cho, M. Youn","doi":"10.1109/IECON.2001.975890","DOIUrl":"https://doi.org/10.1109/IECON.2001.975890","url":null,"abstract":"A new single stage power factor corrected AC/DC converter for universal input is proposed, which is unified with a buck topology. The DC link voltage of the proposed converter is always lower than the peak input voltage at any load condition. Using this distinction, the problem of high DC link voltage under light load conditions of the single stage converter can be solved, especially when the application of universal input is required. The design example of the proposed converter for 5 V 12 A application is presented. The design considerations and experimental results for the proposed converter are also shown. The experimental results show that the line current harmonics can meet IEC 1000-3-2 Class D requirements for the line voltage from 90 Vrms to 260 Vrms.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116368745","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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