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.1999.822194
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}
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.1999.822206
F.P. Ridao, J. Carrasco, L. Franquelo
This paper presents a study of high frequency interference (EMI) caused by an AC/DC PWM converter in a linear power system. A complete system has been designed and mounted in order to measure the interference in different working conditions. In this work, new circuit designs techniques, filters and special shielding have been proposed.
{"title":"Electromagnetic interference suppression in a double AC/DC PWM converter with PFC to be used in a linear power system","authors":"F.P. Ridao, J. Carrasco, L. Franquelo","doi":"10.1109/IECON.1999.822206","DOIUrl":"https://doi.org/10.1109/IECON.1999.822206","url":null,"abstract":"This paper presents a study of high frequency interference (EMI) caused by an AC/DC PWM converter in a linear power system. A complete system has been designed and mounted in order to measure the interference in different working conditions. In this work, new circuit designs techniques, filters and special shielding have been proposed.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"312 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":"122113365","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.1999.816552
T. Shindoi, T. Hirai, K. Takashima, T. Usami
This paper describes abnormal sound detection in plant equipment. Their target was to detect steam leakages, which is one of the most important indications of power plant failure in its early stages. Fourier analysis, which is a conventional method for the sound processing, cannot detect small abnormal sounds mixed with large normal sounds. The authors focus on the characteristics of adaptive digital filters (ADF), which enhance a small signal in a large background noise, and propose an abnormal sound detection method by comparing the properties between normal and abnormal filters produced by the ADF process. Finally, they show the efficiency of this method by applying it to sounds recorded in a power plant. The results of its application to sound source detection are also reported.
{"title":"Plant equipment diagnosis by sound processing","authors":"T. Shindoi, T. Hirai, K. Takashima, T. Usami","doi":"10.1109/IECON.1999.816552","DOIUrl":"https://doi.org/10.1109/IECON.1999.816552","url":null,"abstract":"This paper describes abnormal sound detection in plant equipment. Their target was to detect steam leakages, which is one of the most important indications of power plant failure in its early stages. Fourier analysis, which is a conventional method for the sound processing, cannot detect small abnormal sounds mixed with large normal sounds. The authors focus on the characteristics of adaptive digital filters (ADF), which enhance a small signal in a large background noise, and propose an abnormal sound detection method by comparing the properties between normal and abnormal filters produced by the ADF process. Finally, they show the efficiency of this method by applying it to sounds recorded in a power plant. The results of its application to sound source detection are also reported.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"23 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":"123844660","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.1999.822216
Yaow-Ming Chen, Yuan-Ming Cheng
The proposed analog-based modified PWM control scheme for the DC-AC inverter can eliminate the low order harmonic components caused by the nonconstant DC voltage source. A simple high-power factor full-bridge rectifier with the valley-fill filter is selected to realize the nonconstant DC voltage source. The development of a modified triangular signal for the PWM control is introduced in this paper. The performance of the proposed modified PWM control scheme is verified by using computer simulation and experimental results.
{"title":"PWM control using a modified triangular signal","authors":"Yaow-Ming Chen, Yuan-Ming Cheng","doi":"10.1109/IECON.1999.822216","DOIUrl":"https://doi.org/10.1109/IECON.1999.822216","url":null,"abstract":"The proposed analog-based modified PWM control scheme for the DC-AC inverter can eliminate the low order harmonic components caused by the nonconstant DC voltage source. A simple high-power factor full-bridge rectifier with the valley-fill filter is selected to realize the nonconstant DC voltage source. The development of a modified triangular signal for the PWM control is introduced in this paper. The performance of the proposed modified PWM control scheme is verified by using computer simulation and experimental results.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"1 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":"130022884","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：