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}
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.1999.819361
D. Yousfi, M. Azizi, A. Saad
In this paper a combined position and speed estimation algorithm for synchronous motor is presented. The aim is to improve the ability to cancel initial position error as well as the robustness towards DC disturbance affecting the back-EMF. Emphasis is placed on the DC drift and initial value problems due to the implementation of an integrator for motor flux estimation. Some existing algorithms together with a new improved integrator are presented and analyzed for showing their efficiency in terms of solving the problem associated with a pure integrator and achieving the combination objectives in both steady-state and dynamic operation. Experimental results are presented to substantiate the digital simulation.
{"title":"Position and speed estimation with improved integrator for synchronous motor","authors":"D. Yousfi, M. Azizi, A. Saad","doi":"10.1109/IECON.1999.819361","DOIUrl":"https://doi.org/10.1109/IECON.1999.819361","url":null,"abstract":"In this paper a combined position and speed estimation algorithm for synchronous motor is presented. The aim is to improve the ability to cancel initial position error as well as the robustness towards DC disturbance affecting the back-EMF. Emphasis is placed on the DC drift and initial value problems due to the implementation of an integrator for motor flux estimation. Some existing algorithms together with a new improved integrator are presented and analyzed for showing their efficiency in terms of solving the problem associated with a pure integrator and achieving the combination objectives in both steady-state and dynamic operation. Experimental results are presented to substantiate the digital simulation.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"9 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":"124012460","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.1999.816486
K. Ramkumar, M. Druckenmuller, Y. Xi, P. Philips, H. Presig, W.K. Ho, K. Lim
This paper addresses the problem of fault-detection and diagnosis using finite-state automaton (FSA) models. These models partition the state-space into finite regions and contain information on system trajectory across these regions. A framework for modeling faults using FSA models is discussed. A fault-detection shell which dynamically generates automaton tables is developed. The algorithm is illustrated with a case study.
{"title":"A fault-detection and diagnosis scheme by dynamic computation of finite-state automaton tables","authors":"K. Ramkumar, M. Druckenmuller, Y. Xi, P. Philips, H. Presig, W.K. Ho, K. Lim","doi":"10.1109/IECON.1999.816486","DOIUrl":"https://doi.org/10.1109/IECON.1999.816486","url":null,"abstract":"This paper addresses the problem of fault-detection and diagnosis using finite-state automaton (FSA) models. These models partition the state-space into finite regions and contain information on system trajectory across these regions. A framework for modeling faults using FSA models is discussed. A fault-detection shell which dynamically generates automaton tables is developed. The algorithm is illustrated with a case study.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"67 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":"127858559","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.1999.819433
B. Busco, A. Lo Schiavo, P. Marino, F. Vasca
The line-side DC/DC converter used for ETR500P traction train by ANSALDO Trasporti SpA (Italy) is considered. A new active filtering technique is proposed in order to compensate for undesired input current harmonics. The compensation technique does not require any additional power converter and it is based on an on-line detection of the undesired harmonic to be eliminated. The controller is designed by using an equivalent circuit of the DC/DC converter, obtained by means of a proper transformation of its state space model. Simulation results show the effectiveness of the proposed technique.
{"title":"Active filtering of low frequency harmonics in DC/DC converters for traction applications","authors":"B. Busco, A. Lo Schiavo, P. Marino, F. Vasca","doi":"10.1109/IECON.1999.819433","DOIUrl":"https://doi.org/10.1109/IECON.1999.819433","url":null,"abstract":"The line-side DC/DC converter used for ETR500P traction train by ANSALDO Trasporti SpA (Italy) is considered. A new active filtering technique is proposed in order to compensate for undesired input current harmonics. The compensation technique does not require any additional power converter and it is based on an on-line detection of the undesired harmonic to be eliminated. The controller is designed by using an equivalent circuit of the DC/DC converter, obtained by means of a proper transformation of its state space model. Simulation results show the effectiveness of the proposed technique.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"104 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":"116361622","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.1999.816508
A. Malinowski, T. Konetski, B. Davis, D. Schertz
This paper describes the work-in-progress of a client-server system to control a moving robot over the World Wide Web. Robotic manipulators are interfaced to the computer using simple microprocessor circuits. The engineering objective is to perform robust real time manual control over the Internet connection characterized by varying bandwidth and latency. A Web server is used to provide the client application to the operator. The client uses a custom TCP/IP protocol to connect to the server, which provides an interface to the specific robotic manipulators. Sensors and a video camera provide the feedback to the client. Since the decision was made that Java2 would be the only target implementation language both client and server are platform independent. The current system prototype "Bradley WebBot" utilizes an Intel based computer system with a Personal Web Server controlling remote controlled car models. It can be inspected by visiting the Web site at http://sant.bradley.edu/~olekmali/projects/tb-front/ http://sant.bradley.edu//spl sim/olekmali/projects/tb-front/.
{"title":"Web-controlled robotic manipulator using Java and client-server architecture","authors":"A. Malinowski, T. Konetski, B. Davis, D. Schertz","doi":"10.1109/IECON.1999.816508","DOIUrl":"https://doi.org/10.1109/IECON.1999.816508","url":null,"abstract":"This paper describes the work-in-progress of a client-server system to control a moving robot over the World Wide Web. Robotic manipulators are interfaced to the computer using simple microprocessor circuits. The engineering objective is to perform robust real time manual control over the Internet connection characterized by varying bandwidth and latency. A Web server is used to provide the client application to the operator. The client uses a custom TCP/IP protocol to connect to the server, which provides an interface to the specific robotic manipulators. Sensors and a video camera provide the feedback to the client. Since the decision was made that Java2 would be the only target implementation language both client and server are platform independent. The current system prototype \"Bradley WebBot\" utilizes an Intel based computer system with a Personal Web Server controlling remote controlled car models. It can be inspected by visiting the Web site at http://sant.bradley.edu/~olekmali/projects/tb-front/ http://sant.bradley.edu//spl sim/olekmali/projects/tb-front/.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"25 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":"116720528","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.1999.822241
C. Yeh, C. J. Kuo
Watermarking is an important protection and identification technique that allows an invisible mark to be hidden in the multimedia information such as audio, image, video, or text and has been developed to protect digital signals against illegal reproduction and modifications. In this paper, we propose a novel method about how to embed a digital signature. This method is based on bit plane manipulation of the LSB and the decoding is easy due to the property of the signature (quasi m-array) that we used. The proposed technique for digital image watermarking is also compatible with JPEG processing and can be survived after JPEG encoding.
{"title":"Digital watermarking through quasi m-arrays","authors":"C. Yeh, C. J. Kuo","doi":"10.1109/IECON.1999.822241","DOIUrl":"https://doi.org/10.1109/IECON.1999.822241","url":null,"abstract":"Watermarking is an important protection and identification technique that allows an invisible mark to be hidden in the multimedia information such as audio, image, video, or text and has been developed to protect digital signals against illegal reproduction and modifications. In this paper, we propose a novel method about how to embed a digital signature. This method is based on bit plane manipulation of the LSB and the decoding is easy due to the property of the signature (quasi m-array) that we used. The proposed technique for digital image watermarking is also compatible with JPEG processing and can be survived after JPEG encoding.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"3 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":"115334153","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.1999.822213
Y. Jin, C. F. Foo, W. Zhu
An analysis method of piezoelectric transformers (PT) for switching power supplies is presented based on three-dimensional (3D) simulation. In order to illustrate the 3D nature of the factual PT, a 3D model is developed. A simulation method is presented to link the converse piezoelectric effect and direct piezoelectric effect of PT. The simulation is implemented by using a finite element analysis (FEA) software, ANSYS. The properties of the PT are calculated and analyzed. The results show that the simulation study in 3D environment reveals the physical properties of PT satisfactorily. Moreover the simulation tool is a convenient and easily accessible simulation software package.
{"title":"Three-dimensional simulation of piezoelectric transformer for the switching power supply","authors":"Y. Jin, C. F. Foo, W. Zhu","doi":"10.1109/IECON.1999.822213","DOIUrl":"https://doi.org/10.1109/IECON.1999.822213","url":null,"abstract":"An analysis method of piezoelectric transformers (PT) for switching power supplies is presented based on three-dimensional (3D) simulation. In order to illustrate the 3D nature of the factual PT, a 3D model is developed. A simulation method is presented to link the converse piezoelectric effect and direct piezoelectric effect of PT. The simulation is implemented by using a finite element analysis (FEA) software, ANSYS. The properties of the PT are calculated and analyzed. The results show that the simulation study in 3D environment reveals the physical properties of PT satisfactorily. Moreover the simulation tool is a convenient and easily accessible simulation software package.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"222 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":"114560843","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.1999.819353
T. Miyazaki, K. Ohishi
This paper proposes a new robust speed control suppressing vibration caused by angular transmission error of planetary gear. For this purpose, first, this paper constructs a new numerical simulation model of angular transmission error of planetary gear, which is confirmed by the experimental data of the tested robot arm. Next, the proposed robust speed control system is designed by the two-degrees-of-freedom control system based on disturbance observer and coprime factorization. The numerical simulation results show that the proposed system regulates the motor velocity and suppresses the vibration.
{"title":"Robust speed control suppressing vibration caused by angular transmission error of planetary gear","authors":"T. Miyazaki, K. Ohishi","doi":"10.1109/IECON.1999.819353","DOIUrl":"https://doi.org/10.1109/IECON.1999.819353","url":null,"abstract":"This paper proposes a new robust speed control suppressing vibration caused by angular transmission error of planetary gear. For this purpose, first, this paper constructs a new numerical simulation model of angular transmission error of planetary gear, which is confirmed by the experimental data of the tested robot arm. Next, the proposed robust speed control system is designed by the two-degrees-of-freedom control system based on disturbance observer and coprime factorization. The numerical simulation results show that the proposed system regulates the motor velocity and suppresses the vibration.","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":"114439152","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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