Pub Date : 1900-01-01DOI: 10.1109/ISIE.2002.1025846
P. Bolognesi, L. Taponecco
In apparatus requiring articulated movements involving multiple freedom degrees, usually each one is managed by means of a conventional actuator charged to control the corresponding elementary motion, and the required comprehensive motion is obtained with the aid of suitable mechanisms. Nevertheless, weight, space and cost savings, besides structural simplifications, could be achieved by employing actuators able to simultaneously manage more freedom degrees. This paper proposes a novel rotary-linear 4-phase permanent magnets brushless motor. The machine structure and its basic principles are first described, obtaining then an approximated analytical model by means of a simplified electromagnetic anal based on the equivalent magnetic circuit approach. The machine regulation is then examined, demonstrating the ideal possibility to achieve a fully decoupled control of the electromagnetic force and torque, joined to the suppression of the potentially correlated ripple phenomena, by adopting a suitable yet simple supply logic. Several theoretical waveforms are finally reported.
{"title":"A novel 2-freedom-degrees brushless motor","authors":"P. Bolognesi, L. Taponecco","doi":"10.1109/ISIE.2002.1025846","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025846","url":null,"abstract":"In apparatus requiring articulated movements involving multiple freedom degrees, usually each one is managed by means of a conventional actuator charged to control the corresponding elementary motion, and the required comprehensive motion is obtained with the aid of suitable mechanisms. Nevertheless, weight, space and cost savings, besides structural simplifications, could be achieved by employing actuators able to simultaneously manage more freedom degrees. This paper proposes a novel rotary-linear 4-phase permanent magnets brushless motor. The machine structure and its basic principles are first described, obtaining then an approximated analytical model by means of a simplified electromagnetic anal based on the equivalent magnetic circuit approach. The machine regulation is then examined, demonstrating the ideal possibility to achieve a fully decoupled control of the electromagnetic force and torque, joined to the suppression of the potentially correlated ripple phenomena, by adopting a suitable yet simple supply logic. Several theoretical waveforms are finally reported.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"573 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134273219","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026351
L. Angrisani, M. D’Arco, C. De Capua
The paper deals with measurement procedures to be adopted in the analysis of electromagnetic emissions by power electronic apparatus. Attention is focused on the characterization of the nonstationary magnetic induction field that can be revealed in the neighboring of adjustable speed motor drives. The inadequacy of the classical procedure usually adopted is first highlighted. Then, an alternative measurement technique capable of granting a deep insight in the characterization of the magnetic induction Field, B, is presented. Finally, the results of experimental tests that validate the proposed technique are shown.
{"title":"A measurement technique for the analysis of magnetic field emissions by power electronic equipment","authors":"L. Angrisani, M. D’Arco, C. De Capua","doi":"10.1109/ISIE.2002.1026351","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026351","url":null,"abstract":"The paper deals with measurement procedures to be adopted in the analysis of electromagnetic emissions by power electronic apparatus. Attention is focused on the characterization of the nonstationary magnetic induction field that can be revealed in the neighboring of adjustable speed motor drives. The inadequacy of the classical procedure usually adopted is first highlighted. Then, an alternative measurement technique capable of granting a deep insight in the characterization of the magnetic induction Field, B, is presented. Finally, the results of experimental tests that validate the proposed technique are shown.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133107671","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025962
S. Kalaschnikow
A novel control method for power active filters is presented, which makes it possible to control the individual harmonics of the supply current with a closed loop without any mains voltage sensors. This method makes it possible to reduce the rating of active filters, and as a result, to reduce the cost of them, compared to the conventional control methods.
{"title":"Control method for active filters","authors":"S. Kalaschnikow","doi":"10.1109/ISIE.2002.1025962","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025962","url":null,"abstract":"A novel control method for power active filters is presented, which makes it possible to control the individual harmonics of the supply current with a closed loop without any mains voltage sensors. This method makes it possible to reduce the rating of active filters, and as a result, to reduce the cost of them, compared to the conventional control methods.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"398 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133030228","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025949
P. Acamley, E. Makin
This paper addresses the issue of speed holding capability for a casting drum drive used in a high-quality film production process. The quality of the product is reduced by film profile variations, which are caused by changes in the casting drum speed, resulting from: forces transmitted through the film, mechanical imbalance of the drum, backlash in gearboxes, and torque ripple from the electric drives. Techniques for counteracting film-transmitted forces are described and tested using a laboratory facility, which replicates the behaviour of a production plant. It is shown that system modelling must include the effects of creep and slip between the drive belt and pulleys. Using the system model in speed and load torque observers allows the development of new controllers, which improve speed holding capability by a factor of 10.
{"title":"Improved speed control for a casting drum drive","authors":"P. Acamley, E. Makin","doi":"10.1109/ISIE.2002.1025949","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025949","url":null,"abstract":"This paper addresses the issue of speed holding capability for a casting drum drive used in a high-quality film production process. The quality of the product is reduced by film profile variations, which are caused by changes in the casting drum speed, resulting from: forces transmitted through the film, mechanical imbalance of the drum, backlash in gearboxes, and torque ripple from the electric drives. Techniques for counteracting film-transmitted forces are described and tested using a laboratory facility, which replicates the behaviour of a production plant. It is shown that system modelling must include the effects of creep and slip between the drive belt and pulleys. Using the system model in speed and load torque observers allows the development of new controllers, which improve speed holding capability by a factor of 10.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133566377","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026347
R. Araújo, A. V. Leite, D. Freitas
In this paper a new method of estimation of the induction motor electric parameters is presented and discussed. The proposed method uses the indirect approach that consists in estimating the continuous-time parameters by first fitting a discrete-time model to the data and then converting this model to a continuous-time version. The main contribution is that by using a polynomial pre-filter it is possible to compute the induction motor equivalent circuit parameters via an inverse transformation between the discrete-time and the continuous-time models. The procedure is potentially useful for the design of self-commissioning drives and may provide initial estimates to extended Kalman filtering type of procedures. The effectiveness of the proposed method is verified by simulated tests and results of the method are discussed.
{"title":"Estimation of physical parameters of an induction motor using an indirect method","authors":"R. Araújo, A. V. Leite, D. Freitas","doi":"10.1109/ISIE.2002.1026347","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026347","url":null,"abstract":"In this paper a new method of estimation of the induction motor electric parameters is presented and discussed. The proposed method uses the indirect approach that consists in estimating the continuous-time parameters by first fitting a discrete-time model to the data and then converting this model to a continuous-time version. The main contribution is that by using a polynomial pre-filter it is possible to compute the induction motor equivalent circuit parameters via an inverse transformation between the discrete-time and the continuous-time models. The procedure is potentially useful for the design of self-commissioning drives and may provide initial estimates to extended Kalman filtering type of procedures. The effectiveness of the proposed method is verified by simulated tests and results of the method are discussed.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114603255","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026321
T. Jin, J.M. Lee
This paper proposes a sensor-fusion technique where the data sets for the previous moments are properly transformed and fused into the current data sets to enable accurate measurement, such as, distance to an obstacle and location of the service robot itself. In the conventional fusion schemes, the measurement is dependent on the current data sets. As the results, more sensors are required to measure a certain physical parameter or to improve the accuracy of the measurement. However, in this approach, instead of adding more sensors to the system, the temporal sequence of the data sets are stored and utilized for the measurement improvement. The theoretical basis is illustrated by examples and the effectiveness is proved through the simulations. Finally, the new space and time sensor fusion (STSF) scheme is applied to the control of a mobile robot in an unstructured environment as well as a structured environment.
{"title":"Space and time sensor fusion for mobile robot navigation","authors":"T. Jin, J.M. Lee","doi":"10.1109/ISIE.2002.1026321","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026321","url":null,"abstract":"This paper proposes a sensor-fusion technique where the data sets for the previous moments are properly transformed and fused into the current data sets to enable accurate measurement, such as, distance to an obstacle and location of the service robot itself. In the conventional fusion schemes, the measurement is dependent on the current data sets. As the results, more sensors are required to measure a certain physical parameter or to improve the accuracy of the measurement. However, in this approach, instead of adding more sensors to the system, the temporal sequence of the data sets are stored and utilized for the measurement improvement. The theoretical basis is illustrated by examples and the effectiveness is proved through the simulations. Finally, the new space and time sensor fusion (STSF) scheme is applied to the control of a mobile robot in an unstructured environment as well as a structured environment.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121419647","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025979
H. Awad, J. Svensson
The energy-storage of the static series compensator (SSC) dictates its capability to mitigate voltage dips. Capacitors are considered the most feasible energy storage for the SSC, particularly in high power applications. However, charging techniques of such energy-storage capacitors (ESC) have not been reported in literature. This paper proposes and describes the self-charging, technique that uses the voltage source converter of the SSC to charge its ESC. The active power, used in charging, is taken at the expense of the load active power. Thus two different cases are considered. One case considers that the phase angle of the load voltage is not allowed to jump during the charging process but the magnitude of the load voltage is reduced to 95-99% of its rated value. The other case assumes that the phase angle of the load voltage is allowed to jump. In this case, the VSC of the SSC extracts active power from the grid and injects reactive power into the grid. In both cases, a proper control algorithm is presented. PSCAD/EMTDC simulation verifies the validity of the proposed technique.
{"title":"Self-startup of static series compensator","authors":"H. Awad, J. Svensson","doi":"10.1109/ISIE.2002.1025979","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025979","url":null,"abstract":"The energy-storage of the static series compensator (SSC) dictates its capability to mitigate voltage dips. Capacitors are considered the most feasible energy storage for the SSC, particularly in high power applications. However, charging techniques of such energy-storage capacitors (ESC) have not been reported in literature. This paper proposes and describes the self-charging, technique that uses the voltage source converter of the SSC to charge its ESC. The active power, used in charging, is taken at the expense of the load active power. Thus two different cases are considered. One case considers that the phase angle of the load voltage is not allowed to jump during the charging process but the magnitude of the load voltage is reduced to 95-99% of its rated value. The other case assumes that the phase angle of the load voltage is allowed to jump. In this case, the VSC of the SSC extracts active power from the grid and injects reactive power into the grid. In both cases, a proper control algorithm is presented. PSCAD/EMTDC simulation verifies the validity of the proposed technique.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115892326","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026318
S. Hata, A. Nagatomo, K. Tsukamoto, Y. Mihara
To maintain a healthy and safe life in the ordinary living environment of elderly people, it is proposed to develop proper monitoring systems of their health conditions and accidents. Also, there should be many life assist systems. Here, a project to develop the human support network system has been introduced. One of the sensors in the system is the emergency monitoring system under the special environment such as bathrooms, wash rooms and bedrooms where the privacy should be kept at the highest level. The sensor should detect the many emergency occasions, but it cannot handle the raw images from the visual sensors. To meet with these requirements, a 3-D coarse data detection sensor with patterned light projection has been introduced. Using the sensor, the human breathing monitoring system has been developed. The system can be used in the bedroom without violating the human privacy. Here, first, the idea of the bed monitoring system is introduced. Then, the performance is introduced.
{"title":"Wide range 3-D vision sensor for bed monitoring system","authors":"S. Hata, A. Nagatomo, K. Tsukamoto, Y. Mihara","doi":"10.1109/ISIE.2002.1026318","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026318","url":null,"abstract":"To maintain a healthy and safe life in the ordinary living environment of elderly people, it is proposed to develop proper monitoring systems of their health conditions and accidents. Also, there should be many life assist systems. Here, a project to develop the human support network system has been introduced. One of the sensors in the system is the emergency monitoring system under the special environment such as bathrooms, wash rooms and bedrooms where the privacy should be kept at the highest level. The sensor should detect the many emergency occasions, but it cannot handle the raw images from the visual sensors. To meet with these requirements, a 3-D coarse data detection sensor with patterned light projection has been introduced. Using the sensor, the human breathing monitoring system has been developed. The system can be used in the bedroom without violating the human privacy. Here, first, the idea of the bed monitoring system is introduced. Then, the performance is introduced.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115236799","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026073
O. López-Ortega
This paper describes the design of manufacturing objects done with the EXPRESS modeling language, and its implementation in a suite of Java classes. The Java suite constitutes an open manufacturing information system and a set of services, which are used to modify it. The rationale behind the objects model of the manufacturing information system is the fact that computer applications (CAD, CAM, CAPP or PAC) require static data from manufacturing objects like machine-tools, robots, ASRSs or AGVs but they use proprietary formats to store it. The proprietary formats lead to incompatibilities and interoperability problems among the applications. The proposed manufacturing objects and their implementation constitute a solution to facilitate data sharing and exchanging of flexible manufacturing resources.
{"title":"Design and implementation of an open manufacturing information system to enhance data sharing and exchanging among applications","authors":"O. López-Ortega","doi":"10.1109/ISIE.2002.1026073","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026073","url":null,"abstract":"This paper describes the design of manufacturing objects done with the EXPRESS modeling language, and its implementation in a suite of Java classes. The Java suite constitutes an open manufacturing information system and a set of services, which are used to modify it. The rationale behind the objects model of the manufacturing information system is the fact that computer applications (CAD, CAM, CAPP or PAC) require static data from manufacturing objects like machine-tools, robots, ASRSs or AGVs but they use proprietary formats to store it. The proprietary formats lead to incompatibilities and interoperability problems among the applications. The proposed manufacturing objects and their implementation constitute a solution to facilitate data sharing and exchanging of flexible manufacturing resources.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115927298","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025956
G. Spagnuolo, M. Vitelli
An evolutionary approach to worst-case circuit tolerance design is presented in this paper. Thanks to an appropriate choice of the fitness function and of the reproduction operators, the algorithm is able to explore a wide sub-region of the space of parameters without any prior knowledge about position and size of the region of acceptability. Vertex analysis has been used to check the feasibility of any candidate tolerance region. For this reason, if, as for a large part of cases, the region of acceptability is convex and simply connected, the algorithm ensures an optimal design with 100% yield. The search for a "central" design in the feasible region,. namely for a set of parameters' central values and tolerances that make the circuit the most tolerant to uncertainties, is driven by the optimization of the objective function of interest for the designer as, for example, the per-unit circuit cost. Features and limitations of the approach are discussed by means of two examples.
{"title":"Worst-case tolerance design by genetic algorithms","authors":"G. Spagnuolo, M. Vitelli","doi":"10.1109/ISIE.2002.1025956","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025956","url":null,"abstract":"An evolutionary approach to worst-case circuit tolerance design is presented in this paper. Thanks to an appropriate choice of the fitness function and of the reproduction operators, the algorithm is able to explore a wide sub-region of the space of parameters without any prior knowledge about position and size of the region of acceptability. Vertex analysis has been used to check the feasibility of any candidate tolerance region. For this reason, if, as for a large part of cases, the region of acceptability is convex and simply connected, the algorithm ensures an optimal design with 100% yield. The search for a \"central\" design in the feasible region,. namely for a set of parameters' central values and tolerances that make the circuit the most tolerant to uncertainties, is driven by the optimization of the objective function of interest for the designer as, for example, the per-unit circuit cost. Features and limitations of the approach are discussed by means of two examples.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121184801","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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