Pub Date : 1999-11-29DOI: 10.1109/IECON.1999.822175
U. Stelbe, M. Dobermann
Web based training systems offer enhanced functionality for co-operative learning. Nevertheless, these system approaches are mostly dedicated to distributed information presentation, exploring the potentials of current Internet/WWW technologies (e.g. Java, HTML, VRML). This article describes a research project at the Computer Graphics Center (ZGDV) in collaboration with small and medium enterprises in the maritime application area with the objective to enhance the interaction and demonstration quality of training by integrating a distributed simulation environment into the training scenario. This training scenario is based on HLA/RTI while clients are developed using Visual C++ as well as the Java development kit.
{"title":"Distance training and learning in a distributed simulation environment","authors":"U. Stelbe, M. Dobermann","doi":"10.1109/IECON.1999.822175","DOIUrl":"https://doi.org/10.1109/IECON.1999.822175","url":null,"abstract":"Web based training systems offer enhanced functionality for co-operative learning. Nevertheless, these system approaches are mostly dedicated to distributed information presentation, exploring the potentials of current Internet/WWW technologies (e.g. Java, HTML, VRML). This article describes a research project at the Computer Graphics Center (ZGDV) in collaboration with small and medium enterprises in the maritime application area with the objective to enhance the interaction and demonstration quality of training by integrating a distributed simulation environment into the training scenario. This training scenario is based on HLA/RTI while clients are developed using Visual C++ as well as the Java development kit.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"226 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134053760","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 : 1999-11-29DOI: 10.1109/IECON.1999.816477
J. de Lucas, M. Quintana, T. Riesgo, Y. Torroja, J. Uceda
This paper presents the experience of the development of a CAN interface to be integrated in custom circuits (ASICs, FPGAs). The CAN controller has been designed in VHDL, so it can be targeted to different implementation technologies. The design method of the block is also presented in the paper as an experience of how to easily design digital systems to be reused in different applications, assuring its quality and reliability.
{"title":"Design of a CAN interface for custom circuits","authors":"J. de Lucas, M. Quintana, T. Riesgo, Y. Torroja, J. Uceda","doi":"10.1109/IECON.1999.816477","DOIUrl":"https://doi.org/10.1109/IECON.1999.816477","url":null,"abstract":"This paper presents the experience of the development of a CAN interface to be integrated in custom circuits (ASICs, FPGAs). The CAN controller has been designed in VHDL, so it can be targeted to different implementation technologies. The design method of the block is also presented in the paper as an experience of how to easily design digital systems to be reused in different applications, assuring its quality and reliability.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131792355","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 : 1999-11-29DOI: 10.1109/IECON.1999.816544
Y. Itoh, I. Miyazawa, J.H. Liu, T. Sekiguchi
Petri nets (PNs) are a useful graphical and mathematical tool to model and analyze discrete event systems. In this paper, the authors provide a new concept to analyze PN properties based on graph theory. First, they show the method to convert PNs into directed graphs, and then introduce the transitive matrices of PNs. Second, structural properties are examined using the characteristic polynomial and equation of the transitive matrices, and applying the Mason's theorem derived from signal-flow-graphs. Furthermore, behavioral properties concerning the transition firing orders are discussed using the power of the transitive matrices.
{"title":"On analysis of Petri net properties based on transitive matrix","authors":"Y. Itoh, I. Miyazawa, J.H. Liu, T. Sekiguchi","doi":"10.1109/IECON.1999.816544","DOIUrl":"https://doi.org/10.1109/IECON.1999.816544","url":null,"abstract":"Petri nets (PNs) are a useful graphical and mathematical tool to model and analyze discrete event systems. In this paper, the authors provide a new concept to analyze PN properties based on graph theory. First, they show the method to convert PNs into directed graphs, and then introduce the transitive matrices of PNs. Second, structural properties are examined using the characteristic polynomial and equation of the transitive matrices, and applying the Mason's theorem derived from signal-flow-graphs. Furthermore, behavioral properties concerning the transition firing orders are discussed using the power of the transitive matrices.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134602288","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 : 1999-11-29DOI: 10.1109/IECON.1999.816457
M. Perales, J. Pérez, F. Barrero, J. Mora, E. Galván, J. Carrasco, L. Franquelo, D. De La Cruz, L. Fernández, A. Zazo
In this paper a system to evaluate a variable speed and pitch angle wind turbine by fuzzy logic techniques is described. A fuzzy logic control has been proposed based on the wind speed estimation in order to get maximum power and stability of the system. An 11 kW prototype system using two inverters connected by a DC-link capacitor has been used: the first one works as a controlled rectifier implementing vector control and the second one handles the power injected into the utility grid. Experimental result of an 11 kW generator are shown.
{"title":"Fuzzy logic control of a variable speed, variable pitch wind turbine","authors":"M. Perales, J. Pérez, F. Barrero, J. Mora, E. Galván, J. Carrasco, L. Franquelo, D. De La Cruz, L. Fernández, A. Zazo","doi":"10.1109/IECON.1999.816457","DOIUrl":"https://doi.org/10.1109/IECON.1999.816457","url":null,"abstract":"In this paper a system to evaluate a variable speed and pitch angle wind turbine by fuzzy logic techniques is described. A fuzzy logic control has been proposed based on the wind speed estimation in order to get maximum power and stability of the system. An 11 kW prototype system using two inverters connected by a DC-link capacitor has been used: the first one works as a controlled rectifier implementing vector control and the second one handles the power injected into the utility grid. Experimental result of an 11 kW generator are shown.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133808654","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 : 1999-11-29DOI: 10.1109/IECON.1999.816467
H. Rehman, Xingyi Xu, N. Liu, G. S. Kahlon, R. Mohan
The drive system for the Visteon Integrated Starter-Alternator (VISA), which uses ultracapacitors as the main power source, is developed and demonstrated. VISA system controller integration with the engine and induction motor controllers is presented. The controller parameters are identified and tuned for both the motoring and generation mode of operation. The high performance advanced controller for electric machines (ACE), designed and developed at the Ford Research Laboratory is used to implement and execute the control strategy. Experimental results show that the drive system meets the torque/power specification for starting the engine and functions as an alternator once the engine has started.
{"title":"Induction motor drive system for the Visteon Integrated Starter-Alternator","authors":"H. Rehman, Xingyi Xu, N. Liu, G. S. Kahlon, R. Mohan","doi":"10.1109/IECON.1999.816467","DOIUrl":"https://doi.org/10.1109/IECON.1999.816467","url":null,"abstract":"The drive system for the Visteon Integrated Starter-Alternator (VISA), which uses ultracapacitors as the main power source, is developed and demonstrated. VISA system controller integration with the engine and induction motor controllers is presented. The controller parameters are identified and tuned for both the motoring and generation mode of operation. The high performance advanced controller for electric machines (ACE), designed and developed at the Ford Research Laboratory is used to implement and execute the control strategy. Experimental results show that the drive system meets the torque/power specification for starting the engine and functions as an alternator once the engine has started.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133823904","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 : 1999-11-29DOI: 10.1109/IECON.1999.819435
O. Haedrich, M. Schulze
Power electronic and other nonlinear loads connected to a power grid cause severe higher harmonic line distortions. This requires additional filtering expenditure to suppress voltage and current harmonics in the feeding lines. So far, this filtering is mostly implemented by passive filters connected between line and load. Active filtering schemes have been used for current harmonics suppression. This paper focuses on a solution where the power line voltages are conditioned such that higher voltage harmonics are suppressed by an active power electronic filter. The control strategy has been designed to instantaneously balance voltage overshoot with deficiency. The scheme presented here allows for reshaping of the AC-line voltage to any desired shape. It is shown that this scheme is capable of suppressing line voltage harmonics for an example power electronic load. The simulations were performed using SIMPLORER/sup (R)/.
{"title":"A novel active three phase AC-voltage conditioning scheme for suppressing power line distortions","authors":"O. Haedrich, M. Schulze","doi":"10.1109/IECON.1999.819435","DOIUrl":"https://doi.org/10.1109/IECON.1999.819435","url":null,"abstract":"Power electronic and other nonlinear loads connected to a power grid cause severe higher harmonic line distortions. This requires additional filtering expenditure to suppress voltage and current harmonics in the feeding lines. So far, this filtering is mostly implemented by passive filters connected between line and load. Active filtering schemes have been used for current harmonics suppression. This paper focuses on a solution where the power line voltages are conditioned such that higher voltage harmonics are suppressed by an active power electronic filter. The control strategy has been designed to instantaneously balance voltage overshoot with deficiency. The scheme presented here allows for reshaping of the AC-line voltage to any desired shape. It is shown that this scheme is capable of suppressing line voltage harmonics for an example power electronic load. The simulations were performed using SIMPLORER/sup (R)/.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115777673","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 : 1999-11-29DOI: 10.1109/IECON.1999.819370
A. Weaver, J. Luo, X. Zhang
Manufacturers have long wished for a tool that would permit remote monitoring and control of manufacturing operations. The combination of the Java programming language with the worldwide reach of the Internet now promises a solution to this problem. Java's scalability, portability, and platform independence allow remote monitoring and control applications ("applets") to run on any web browser. Java applets eliminate the need to build custom hardware/software when implementing remote monitoring and control systems. Any browser can be configured to display graphical representations of the plant or process and to annotate the image with real time data; thus, any Internet-enabled computer is a potential control station (assuming security concerns are satisfied). This gives rise to the concept of "virtual engineers" or "remote engineers" who, armed with real-time plant information, can optimize machine setting or process control parameters, and troubleshoot problems before they escalate.
{"title":"Monitoring and control using the Internet and Java","authors":"A. Weaver, J. Luo, X. Zhang","doi":"10.1109/IECON.1999.819370","DOIUrl":"https://doi.org/10.1109/IECON.1999.819370","url":null,"abstract":"Manufacturers have long wished for a tool that would permit remote monitoring and control of manufacturing operations. The combination of the Java programming language with the worldwide reach of the Internet now promises a solution to this problem. Java's scalability, portability, and platform independence allow remote monitoring and control applications (\"applets\") to run on any web browser. Java applets eliminate the need to build custom hardware/software when implementing remote monitoring and control systems. Any browser can be configured to display graphical representations of the plant or process and to annotate the image with real time data; thus, any Internet-enabled computer is a potential control station (assuming security concerns are satisfied). This gives rise to the concept of \"virtual engineers\" or \"remote engineers\" who, armed with real-time plant information, can optimize machine setting or process control parameters, and troubleshoot problems before they escalate.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133582843","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 : 1999-11-29DOI: 10.1109/IECON.1999.819369
M. Furuya, T. Fukumoto, T. Sekozawa
In this paper, the authors describe a WWW browser-based monitoring system (WBMS) for industrial plants. The WBMS is an integrated system connected with control LANs and an intranet. The authors show a system architecture based on an organizational security policy, and show some typical system requirements. They then describe two implementation approaches using Java technology, one is a graphical user interface (GUI) development and the other is about data acquisition and management at the client site. The authors also evaluate the performance of Java remote method invocation (RMI) and verify the efficiency of the technique which they propose. They also show how the WBMS can be extended to include a GIS and a simulator.
{"title":"WWW-browser-based monitoring system for industrial plants","authors":"M. Furuya, T. Fukumoto, T. Sekozawa","doi":"10.1109/IECON.1999.819369","DOIUrl":"https://doi.org/10.1109/IECON.1999.819369","url":null,"abstract":"In this paper, the authors describe a WWW browser-based monitoring system (WBMS) for industrial plants. The WBMS is an integrated system connected with control LANs and an intranet. The authors show a system architecture based on an organizational security policy, and show some typical system requirements. They then describe two implementation approaches using Java technology, one is a graphical user interface (GUI) development and the other is about data acquisition and management at the client site. The authors also evaluate the performance of Java remote method invocation (RMI) and verify the efficiency of the technique which they propose. They also show how the WBMS can be extended to include a GIS and a simulator.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121804662","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 : 1999-11-29DOI: 10.1109/IECON.1999.816530
N. Frohleke, R. Pieper, H. Mundinger, H. Grotstollen
Welding power supplies for the MIG/MAG-process are usually operated at power levels up to 20 kW. To achieve high efficiency over a wide load range at reasonable costs resonant switching techniques are crucial. One topology suitable for both high power applications and wide load range is the auxiliary resonant commutated pole converter. Though this topology has been analyzed before, effects occuring in converter applications at lower power have not been addressed. Usage of a computer algebra system allows the inclusion of these effects. This paper presents results of an extended analysis, verified by simulations and measurements on a prototype converter.
{"title":"Computer aided investigation of the auxiliary resonant commutated pole converter for wide range applications such as welding power supplies","authors":"N. Frohleke, R. Pieper, H. Mundinger, H. Grotstollen","doi":"10.1109/IECON.1999.816530","DOIUrl":"https://doi.org/10.1109/IECON.1999.816530","url":null,"abstract":"Welding power supplies for the MIG/MAG-process are usually operated at power levels up to 20 kW. To achieve high efficiency over a wide load range at reasonable costs resonant switching techniques are crucial. One topology suitable for both high power applications and wide load range is the auxiliary resonant commutated pole converter. Though this topology has been analyzed before, effects occuring in converter applications at lower power have not been addressed. Usage of a computer algebra system allows the inclusion of these effects. This paper presents results of an extended analysis, verified by simulations and measurements on a prototype converter.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116467332","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 : 1999-11-29DOI: 10.1109/IECON.1999.822194
N. Kasa, T. Iida, H. Iwamoto
This paper presents a newly developed transformer-less single phase inverter for a photovoltaic (PV) power system. The proposed system consists of two sets of a PV array and buck-boost type chopper circuit. However, it is afraid that the system has lower "using rate" of PV energy than that of the ordinary PV system, as each PV array is only operated in the half duration of the AC power frequency. In this paper, it is also discussed how to increase this "using rate" by varying the connected capacitor between PV array terminals. The perturbation and observation method is adapted to the maximum power tracking in our PV systems. We adopt the wavelet transform to detect a power outage. The experimental data shows that this new inverter can supply AC power to the utility grid line with the power factor nearly unity.
{"title":"An inverter using buck-boost type chopper circuits for popular small-scale photovoltaic power system","authors":"N. Kasa, T. Iida, H. Iwamoto","doi":"10.1109/IECON.1999.822194","DOIUrl":"https://doi.org/10.1109/IECON.1999.822194","url":null,"abstract":"This paper presents a newly developed transformer-less single phase inverter for a photovoltaic (PV) power system. The proposed system consists of two sets of a PV array and buck-boost type chopper circuit. However, it is afraid that the system has lower \"using rate\" of PV energy than that of the ordinary PV system, as each PV array is only operated in the half duration of the AC power frequency. In this paper, it is also discussed how to increase this \"using rate\" by varying the connected capacitor between PV array terminals. The perturbation and observation method is adapted to the maximum power tracking in our PV systems. We adopt the wavelet transform to detect a power outage. The experimental data shows that this new inverter can supply AC power to the utility grid line with the power factor nearly unity.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115217024","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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