Pub Date : 1999-11-29DOI: 10.1109/IECON.1999.819429
S. Daher, R. Pontes, F. Antunes
This paper presents an excitation system for an induction generator. The induction generation used in a small power wind energy system operates with variable frequency, making possible to operate with maximum efficiency for variable wind speed. In order to make the system robust and cheap, the rotor is direct coupled to the generator that is operated at low speed. The inverter switches operate with a sinusoidal PWM strategy which reduces the number of switching by one-third when compared to the conventional PWM method.
{"title":"A stand-alone three-phase induction generator based wind energy storage system","authors":"S. Daher, R. Pontes, F. Antunes","doi":"10.1109/IECON.1999.819429","DOIUrl":"https://doi.org/10.1109/IECON.1999.819429","url":null,"abstract":"This paper presents an excitation system for an induction generator. The induction generation used in a small power wind energy system operates with variable frequency, making possible to operate with maximum efficiency for variable wind speed. In order to make the system robust and cheap, the rotor is direct coupled to the generator that is operated at low speed. The inverter switches operate with a sinusoidal PWM strategy which reduces the number of switching by one-third when compared to the conventional PWM method.","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":"130037194","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.1999.816429
T.H. Lee, F. Leung, P. Tam
This paper describes the design and development of a fuzzy logic controller for the position control of wheeled mobile robots (WMRs). The WMRs are of the type applied in Micro Robot Soccer Tournament (MIROSOT). To meet the control objective, conventional methods rely on an accurate dynamic model of the open-loop plant, as well as a well-calibrated image system. To alleviate these limitations, we propose the use of fuzzy logic controllers that incorporate expert knowledge in terms of linguistic rules. Simulations and experiments have shown that such a fuzzy controlled WMR can have a better performance than a fine-turned PD-controlled WMR.
{"title":"Position control for wheeled mobile robots using a fuzzy logic controller","authors":"T.H. Lee, F. Leung, P. Tam","doi":"10.1109/IECON.1999.816429","DOIUrl":"https://doi.org/10.1109/IECON.1999.816429","url":null,"abstract":"This paper describes the design and development of a fuzzy logic controller for the position control of wheeled mobile robots (WMRs). The WMRs are of the type applied in Micro Robot Soccer Tournament (MIROSOT). To meet the control objective, conventional methods rely on an accurate dynamic model of the open-loop plant, as well as a well-calibrated image system. To alleviate these limitations, we propose the use of fuzzy logic controllers that incorporate expert knowledge in terms of linguistic rules. Simulations and experiments have shown that such a fuzzy controlled WMR can have a better performance than a fine-turned PD-controlled WMR.","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":"128435149","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.1999.819444
R. C. Ko, M. Good
To reduce resonance effects in contouring machine tools, feedback regulation has been the conventional approach. Although feedback control might effectively increase the bandwidth or suppress the vibration, it often accompanied by increased actuator efforts and reduced stability margins. In this paper, an integrated approach of command interpolating, notch filtering and feedforward control to compensate for resonance effects is explored. Since the feedback loop of the original system is left unchanged, the proposed scheme poses no threat to the system stability, and excessive control signals can be avoided. Design issues are discussed and simulation results are shown with a comprehensive model of a laser profiling machine.
{"title":"Reducing resonances in profiling machine tools by generating smooth commands","authors":"R. C. Ko, M. Good","doi":"10.1109/IECON.1999.819444","DOIUrl":"https://doi.org/10.1109/IECON.1999.819444","url":null,"abstract":"To reduce resonance effects in contouring machine tools, feedback regulation has been the conventional approach. Although feedback control might effectively increase the bandwidth or suppress the vibration, it often accompanied by increased actuator efforts and reduced stability margins. In this paper, an integrated approach of command interpolating, notch filtering and feedforward control to compensate for resonance effects is explored. Since the feedback loop of the original system is left unchanged, the proposed scheme poses no threat to the system stability, and excessive control signals can be avoided. Design issues are discussed and simulation results are shown with a comprehensive model of a laser profiling machine.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"36 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":"124585318","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.1999.819389
Jun-Yan Deng, F. Cheng, K. Nguyen
SEMATECH developed the CIM framework specification to facilitate the creation of an integrated, common, flexible, modular object model leading to an open, multi-supplier CIM system environment in the semiconductor industry. However: all the equipment must comply with the SEMI SECS/GEM standards to interface with the CIM framework's machine management components. SEMI is developing an object-based equipment model (OBEM) standard to tab full advantage of the CIM framework. With OBEM, the equipment can communicate with the CIM framework directly by method invocation. This work develops OBEM-compliant object-based equipment (OBE) in the MES framework environment, such that this equipment can directly communicate with the a MES framework, without using the SECS/GEM protocol. Therefore, a systematic approach for developing this object-based system using object technology is proposed. The unified modeling language (UML) is adopted as the major tool for analyzing and developing the target system. A SECS/GEM adapter is also added on the OBE to enable the OBE to be integrated with a legacy factory which can only use SECS/GEM standards. A die bonder is used as example equipment for development demonstrations.
{"title":"Development of an object-based equipment controller for semiconductor equipment communications","authors":"Jun-Yan Deng, F. Cheng, K. Nguyen","doi":"10.1109/IECON.1999.819389","DOIUrl":"https://doi.org/10.1109/IECON.1999.819389","url":null,"abstract":"SEMATECH developed the CIM framework specification to facilitate the creation of an integrated, common, flexible, modular object model leading to an open, multi-supplier CIM system environment in the semiconductor industry. However: all the equipment must comply with the SEMI SECS/GEM standards to interface with the CIM framework's machine management components. SEMI is developing an object-based equipment model (OBEM) standard to tab full advantage of the CIM framework. With OBEM, the equipment can communicate with the CIM framework directly by method invocation. This work develops OBEM-compliant object-based equipment (OBE) in the MES framework environment, such that this equipment can directly communicate with the a MES framework, without using the SECS/GEM protocol. Therefore, a systematic approach for developing this object-based system using object technology is proposed. The unified modeling language (UML) is adopted as the major tool for analyzing and developing the target system. A SECS/GEM adapter is also added on the OBE to enable the OBE to be integrated with a legacy factory which can only use SECS/GEM standards. A die bonder is used as example equipment for development demonstrations.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"18 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":"126787050","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.1999.822245
Keliang Zhou, Danwei W. Wang
This paper proposes an improved repetitive controller for a three-phase PWM inverter to overcome the parameter variations and the periodic load disturbances. The system has the advantages of low total harmonics distortion (THD), low steady-state error, fast response, robustness against load current shock and uses fewer sensors.
{"title":"Repetitive controlled 3-phase CVCF PWM inverter","authors":"Keliang Zhou, Danwei W. Wang","doi":"10.1109/IECON.1999.822245","DOIUrl":"https://doi.org/10.1109/IECON.1999.822245","url":null,"abstract":"This paper proposes an improved repetitive controller for a three-phase PWM inverter to overcome the parameter variations and the periodic load disturbances. The system has the advantages of low total harmonics distortion (THD), low steady-state error, fast response, robustness against load current shock and uses fewer sensors.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"20 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":"126433305","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.1999.822159
C. Schaper, T. Kailath, K. El-Awady, A. Tay
An overview is given describing applications of multivariable control, signal processing, optimization, modeling and computation to the lithography sequence. We discuss areas in the patterning process where mathematical methods can play a significant role including optical proximity correction, phase shifting mask design, alignment, and stage control for nanopositioning. A novel patterning method, based on using polymer conformable membranes possessing and 1:1 binary spatial permeability to vapor phase reactants for chemical modification of the substrate surface, is presented. A section on systems applications in the general area of photoresist processing for lithography with emphasis on the thermal process is also presented. We also discuss the research now underway for both the nanofabrication technique and the thermal system used for photoresist processing.
{"title":"Applications of control and signal processing to the microlithographic process","authors":"C. Schaper, T. Kailath, K. El-Awady, A. Tay","doi":"10.1109/IECON.1999.822159","DOIUrl":"https://doi.org/10.1109/IECON.1999.822159","url":null,"abstract":"An overview is given describing applications of multivariable control, signal processing, optimization, modeling and computation to the lithography sequence. We discuss areas in the patterning process where mathematical methods can play a significant role including optical proximity correction, phase shifting mask design, alignment, and stage control for nanopositioning. A novel patterning method, based on using polymer conformable membranes possessing and 1:1 binary spatial permeability to vapor phase reactants for chemical modification of the substrate surface, is presented. A section on systems applications in the general area of photoresist processing for lithography with emphasis on the thermal process is also presented. We also discuss the research now underway for both the nanofabrication technique and the thermal system used for photoresist processing.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"21 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":"126517475","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.1999.822209
C. Qiao, K. Smedley, Z. Lai, Mehmet Nabant
This paper proposes an improved integration method to realize single phase power factor correction in continuous conduction mode by adding a ripple compensation network comprised of two resistors to the basic integration control circuitry. This method effectively reduces the total harmonic distortion (THD) in the input current. The proposed method is easy to implement. Theoretical analysis is given in detail. Experimental results demonstrate the validity of the approach. This method is very suitable for IC fabrication.
{"title":"An improved integration-reset controlled single phase unity-power-factor boost rectifier with lower distortion","authors":"C. Qiao, K. Smedley, Z. Lai, Mehmet Nabant","doi":"10.1109/IECON.1999.822209","DOIUrl":"https://doi.org/10.1109/IECON.1999.822209","url":null,"abstract":"This paper proposes an improved integration method to realize single phase power factor correction in continuous conduction mode by adding a ripple compensation network comprised of two resistors to the basic integration control circuitry. This method effectively reduces the total harmonic distortion (THD) in the input current. The proposed method is easy to implement. Theoretical analysis is given in detail. Experimental results demonstrate the validity of the approach. This method is very suitable for IC fabrication.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"6 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":"130824685","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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