Pub Date : 1999-11-29DOI: 10.1109/IECON.1999.822217
J. Espinoza, G. Joós, J. Guzmán, L. Morán, R. Burgos
This paper presents a unified approach for generating pulse-width-modulated (PWM) patterns for current source rectifiers and inverters (CSR/Is) that provide (a) unconstrained selective harmonic elimination (SHE), and (b) fundamental current control. The approach uses the chopping angles or gating patterns developed for voltage source rectifiers and inverters (VSR/Is) in combination with a logic circuit to generate the gating patterns for CSR/Is. The circuit also includes naturally and symmetrically distributed shorting pulses. Thus, the approach avoids the hassle of (a) positioning the shorting pulses, and (b) defining and solving a set of nonlinear equations dedicated to CSR/Is. Moreover, the approach can eliminate an even or odd arbitrary number of harmonics (e.g., fundamental current control and elimination of the 5th, 7th, and 11th harmonics). This is an improvement on existing techniques and a new approach to pattern generation. Simulated and experimental results are presented to validate the effectiveness of the approach.
{"title":"Selective harmonic elimination and current/voltage control in current/voltage source topologies: a unified approach","authors":"J. Espinoza, G. Joós, J. Guzmán, L. Morán, R. Burgos","doi":"10.1109/IECON.1999.822217","DOIUrl":"https://doi.org/10.1109/IECON.1999.822217","url":null,"abstract":"This paper presents a unified approach for generating pulse-width-modulated (PWM) patterns for current source rectifiers and inverters (CSR/Is) that provide (a) unconstrained selective harmonic elimination (SHE), and (b) fundamental current control. The approach uses the chopping angles or gating patterns developed for voltage source rectifiers and inverters (VSR/Is) in combination with a logic circuit to generate the gating patterns for CSR/Is. The circuit also includes naturally and symmetrically distributed shorting pulses. Thus, the approach avoids the hassle of (a) positioning the shorting pulses, and (b) defining and solving a set of nonlinear equations dedicated to CSR/Is. Moreover, the approach can eliminate an even or odd arbitrary number of harmonics (e.g., fundamental current control and elimination of the 5th, 7th, and 11th harmonics). This is an improvement on existing techniques and a new approach to pattern generation. Simulated and experimental results are presented to validate the effectiveness of the approach.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"108 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":"122567494","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.1999.819405
T. Chen, R. Luo, Tsu Hung Hsiao
Color provides a useful cue for image analysis and object recognition in robotics and automation applications. In most color based target recognition systems, the color models are invariant in a-priori and are never adjusted while the illumination condition changed. In this case, the system recognition is prone to error due to the change of surrounding illumination. To solve this problem, we have proposed a modeling method with high-tolerance based on probability distribution. The model is adaptive based on the change of illumination condition through on-line adjustment of the model parameters. We called this vision system an adaptive color vision system (ACVS). In this paper, we describe this ACVS system in detail and demonstrate it through the application of the histogram backprojection algorithm. We have conducted experiments which demonstrate the color object tracking by ACVS in a natural environment is an adaptive robustness and flexible system.
{"title":"Visual tracking using adaptive color histogram model","authors":"T. Chen, R. Luo, Tsu Hung Hsiao","doi":"10.1109/IECON.1999.819405","DOIUrl":"https://doi.org/10.1109/IECON.1999.819405","url":null,"abstract":"Color provides a useful cue for image analysis and object recognition in robotics and automation applications. In most color based target recognition systems, the color models are invariant in a-priori and are never adjusted while the illumination condition changed. In this case, the system recognition is prone to error due to the change of surrounding illumination. To solve this problem, we have proposed a modeling method with high-tolerance based on probability distribution. The model is adaptive based on the change of illumination condition through on-line adjustment of the model parameters. We called this vision system an adaptive color vision system (ACVS). In this paper, we describe this ACVS system in detail and demonstrate it through the application of the histogram backprojection algorithm. We have conducted experiments which demonstrate the color object tracking by ACVS in a natural environment is an adaptive robustness and flexible system.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"276 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":"114484729","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.1999.816452
Li Li, D. Czarkowski, Yaguang Liu, P. Pillay
A concept of optimal surplus harmonics distribution in the selective harmonic elimination PWM technique for multilevel inverters is introduced in this paper. There are several performance indexes that can be optimized in PWM inverters, e.g., distortion factor, current or voltage total harmonic distortion or efficiency. Minimization of magnetic noise is selected as an example here. Several methods of alleviating the magnetic noise problems in PWM inverters, like harmonic decentralization and random PWM modulation, have been given in literature but only for three-level (single-cell) inverters. Numerical difficulties associated with a solution of PWM harmonic elimination equations for multilevel systems are overcome by using a nonconstrained optimization. Simulation and experimental results are presented for a double-cell series-connected voltage source PWM inverter. The theoretical and experimental results are in a very good agreement.
{"title":"Optimal surplus harmonic distribution in selected harmonic elimination PWM technique for multilevel inverters","authors":"Li Li, D. Czarkowski, Yaguang Liu, P. Pillay","doi":"10.1109/IECON.1999.816452","DOIUrl":"https://doi.org/10.1109/IECON.1999.816452","url":null,"abstract":"A concept of optimal surplus harmonics distribution in the selective harmonic elimination PWM technique for multilevel inverters is introduced in this paper. There are several performance indexes that can be optimized in PWM inverters, e.g., distortion factor, current or voltage total harmonic distortion or efficiency. Minimization of magnetic noise is selected as an example here. Several methods of alleviating the magnetic noise problems in PWM inverters, like harmonic decentralization and random PWM modulation, have been given in literature but only for three-level (single-cell) inverters. Numerical difficulties associated with a solution of PWM harmonic elimination equations for multilevel systems are overcome by using a nonconstrained optimization. Simulation and experimental results are presented for a double-cell series-connected voltage source PWM inverter. The theoretical and experimental results are in a very good agreement.","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":"128993308","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.1999.816533
C. Cruz, I. Barbi
This paper presents a version for three-phase three-level unidirectional rectifier employing a passive lossless snubber. The proposed rectifier operates with soft commutation without the employment of auxiliaries switches. As a consequence, its efficiency is high and its cost is low. Circuit operation, theoretical analysis, design procedure and experimental results are presented.
{"title":"A passive lossless snubber for the high power factor unidirectional three-phase three-level rectifier","authors":"C. Cruz, I. Barbi","doi":"10.1109/IECON.1999.816533","DOIUrl":"https://doi.org/10.1109/IECON.1999.816533","url":null,"abstract":"This paper presents a version for three-phase three-level unidirectional rectifier employing a passive lossless snubber. The proposed rectifier operates with soft commutation without the employment of auxiliaries switches. As a consequence, its efficiency is high and its cost is low. Circuit operation, theoretical analysis, design procedure and experimental results are presented.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"74 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":"124658687","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.1999.816431
H. Lamela, M.A. Ferreras, A. J. Varo
In this paper, the authors present the development of an autonomous mobile platform designed to test the performance of optical and electronic sensors that will be installed in an autonomous unmanned aerial vehicle. This system allows the analysis of the necessary sensors and communications between the base station and the mobile vehicle without the risks involved in a real flying helicopter. The authors describe all the sensors and navigation systems that are needed in an autonomous helicopter, the way in which they have been implemented in the platform, the acquisition through a control architecture based on a microcontroller that sends all information to a remote station on the ground and the results obtained in the performed tests.
{"title":"Sensor and navigation system integration for autonomous unmanned aerial vehicle applications","authors":"H. Lamela, M.A. Ferreras, A. J. Varo","doi":"10.1109/IECON.1999.816431","DOIUrl":"https://doi.org/10.1109/IECON.1999.816431","url":null,"abstract":"In this paper, the authors present the development of an autonomous mobile platform designed to test the performance of optical and electronic sensors that will be installed in an autonomous unmanned aerial vehicle. This system allows the analysis of the necessary sensors and communications between the base station and the mobile vehicle without the risks involved in a real flying helicopter. The authors describe all the sensors and navigation systems that are needed in an autonomous helicopter, the way in which they have been implemented in the platform, the acquisition through a control architecture based on a microcontroller that sends all information to a remote station on the ground and the results obtained in the performed tests.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"53 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":"129931852","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.1999.822210
Y. Nishimura, T. Shimizu, G. Kimura, S. Igarashi
In order to reduce EMI noise, a novel common-mode current reduction circuit connected in series with the main circuit is proposed. The circuit consists of only passive components, such as the asymmetrical-snubber, a common-mode transformer, and some R, L, and C components. Hence, the circuit is expected to reduce EMI noise, especially in the high-frequency region. The optimum parameter conditions at which the circuit most effectively reduces EMI noise are investigated. Based on the root locus method, the optimum parameter conditions at which the leakage current has minimum amplitude with no oscillatory component is discussed. The experimental results agree well with the theoretical calculations and prove that the proposed method is useful for reducing EMI noise especially conducted EMI noise.
{"title":"Series connection type common-mode current reduction circuit","authors":"Y. Nishimura, T. Shimizu, G. Kimura, S. Igarashi","doi":"10.1109/IECON.1999.822210","DOIUrl":"https://doi.org/10.1109/IECON.1999.822210","url":null,"abstract":"In order to reduce EMI noise, a novel common-mode current reduction circuit connected in series with the main circuit is proposed. The circuit consists of only passive components, such as the asymmetrical-snubber, a common-mode transformer, and some R, L, and C components. Hence, the circuit is expected to reduce EMI noise, especially in the high-frequency region. The optimum parameter conditions at which the circuit most effectively reduces EMI noise are investigated. Based on the root locus method, the optimum parameter conditions at which the leakage current has minimum amplitude with no oscillatory component is discussed. The experimental results agree well with the theoretical calculations and prove that the proposed method is useful for reducing EMI noise especially conducted EMI noise.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"5 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":"114319160","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.1999.822170
J.A. Weima, A. Zaitsev, R. Job, G.C. Kosaca, F. Blum, G. Grabosch, W.R. Fahmer, J. Knopp
We have polished some CVD polycrystalline diamond films of diameter 15 mm using the vibrational thermochemical polishing technique. The surface morphology of the films were measured by optical microscopy and scanning electron microscopy before and after polishing. The initial roughness of the as-grown films as determined by stylus profilometry was in the neighborhood of 25 /spl mu/m for the growth side and 7 /spl mu/m for the substrate side. Polishing for several hours at temperatures between 900/spl deg/C and 750/spl deg/C thinned the surface roughness down to 2.2 nm. Confocal Raman spectroscopy was used to optically characterize the films at various stages of polishing. Non-diamond carbon bands were located at 1205 cm and a split band at 1353 cm/sup -1/ and 1453 cm/sup -1/ after initial polishing. The microcrystalline graphite band at 1580 cm/sup -1/ appeared at intermediate stages of polishing, These bands vanished with persistent polishing, leaving the surface entirely diamond-like after the final fine polishing at 750/spl deg/C. Photoluminescence of defect centers revealed that the only detectable impurities in the samples were nitrogen with zero-phonon lines at 2.156 eV and 1.945 eV and silicon with a zero-phonon line at 1.681. eV, accompanied by their respective phonon replicas. The defect centers are virtually uniformly distributed throughout the films.
{"title":"Nano-polishing and subsequent optical characterization of CVD polycrystalline diamond films","authors":"J.A. Weima, A. Zaitsev, R. Job, G.C. Kosaca, F. Blum, G. Grabosch, W.R. Fahmer, J. Knopp","doi":"10.1109/IECON.1999.822170","DOIUrl":"https://doi.org/10.1109/IECON.1999.822170","url":null,"abstract":"We have polished some CVD polycrystalline diamond films of diameter 15 mm using the vibrational thermochemical polishing technique. The surface morphology of the films were measured by optical microscopy and scanning electron microscopy before and after polishing. The initial roughness of the as-grown films as determined by stylus profilometry was in the neighborhood of 25 /spl mu/m for the growth side and 7 /spl mu/m for the substrate side. Polishing for several hours at temperatures between 900/spl deg/C and 750/spl deg/C thinned the surface roughness down to 2.2 nm. Confocal Raman spectroscopy was used to optically characterize the films at various stages of polishing. Non-diamond carbon bands were located at 1205 cm and a split band at 1353 cm/sup -1/ and 1453 cm/sup -1/ after initial polishing. The microcrystalline graphite band at 1580 cm/sup -1/ appeared at intermediate stages of polishing, These bands vanished with persistent polishing, leaving the surface entirely diamond-like after the final fine polishing at 750/spl deg/C. Photoluminescence of defect centers revealed that the only detectable impurities in the samples were nitrogen with zero-phonon lines at 2.156 eV and 1.945 eV and silicon with a zero-phonon line at 1.681. eV, accompanied by their respective phonon replicas. The defect centers are virtually uniformly distributed throughout the films.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"52 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":"116299843","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.1999.819375
K. Furuta, Y. Xu, R. Gabasov
Time optimal control under bounded input has been studied. This paper presents a computational strategy to obtain the time optimal control for nonlinear systems, and discrete time control under input bound is considered. The swing up control of a single pendulum from pendant stable equilibrium to upright unstable equilibrium is used to illustrate our approaches. For a simplified model of the single pendulum, which is a second-order system, an approach based on the linear programming method is introduced, while for the actual single pendulum, an approach based on nonlinear optimization is introduced. Simulation results show that our computational approaches are feasible.
{"title":"Computation of time optimal swing up control of single pendulum","authors":"K. Furuta, Y. Xu, R. Gabasov","doi":"10.1109/IECON.1999.819375","DOIUrl":"https://doi.org/10.1109/IECON.1999.819375","url":null,"abstract":"Time optimal control under bounded input has been studied. This paper presents a computational strategy to obtain the time optimal control for nonlinear systems, and discrete time control under input bound is considered. The swing up control of a single pendulum from pendant stable equilibrium to upright unstable equilibrium is used to illustrate our approaches. For a simplified model of the single pendulum, which is a second-order system, an approach based on the linear programming method is introduced, while for the actual single pendulum, an approach based on nonlinear optimization is introduced. Simulation results show that our computational approaches are feasible.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"550 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":"116506604","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.1999.819391
Toru Idoue, C.-C. Hsu, S. Yamada, H. Fujikawa
This paper proposes a new control method for time delay plant. Some systems have an unavoidable time delay. It is difficult to solve a plant with a time delay which makes the current signal shift and the controlled system become unstable when the time delay varies. Therefore, the authors applied fuzzy reasoning to a model reference adaptive control system. But the fuzzy rule set needs to be tuned by a trial and error type method. In this paper, the fuzzy rule sets are constructed by multi-operator self-tuning genetic algorithms.
{"title":"Comparisons of MRAFCS with the Smith predictor method and a PID controller for a time delay plant","authors":"Toru Idoue, C.-C. Hsu, S. Yamada, H. Fujikawa","doi":"10.1109/IECON.1999.819391","DOIUrl":"https://doi.org/10.1109/IECON.1999.819391","url":null,"abstract":"This paper proposes a new control method for time delay plant. Some systems have an unavoidable time delay. It is difficult to solve a plant with a time delay which makes the current signal shift and the controlled system become unstable when the time delay varies. Therefore, the authors applied fuzzy reasoning to a model reference adaptive control system. But the fuzzy rule set needs to be tuned by a trial and error type method. In this paper, the fuzzy rule sets are constructed by multi-operator self-tuning genetic algorithms.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"249 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":"121437039","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.1999.816521
B.N. Singh, B. Shigh, A. Chandra, K. Al-haddad
A TMS320C31 DSP based new and simple control algorithm of a three-phase shunt active filter to regulate load terminal voltage, harmonics elimination, power factor correction and balancing of the nonlinear unbalanced loads is proposed in this paper. A three-phase IGBT based voltage source inverter (VSI) with indirect current control (ICC) is considered as an active filter (AF). In indirect current control of the VSI, a carrier-based PWM control strategy is employed to generate the gating signals for devices used in the inverter. Two sliding mode controllers (SMCs) based closed-loop control scheme of the proposed AF uses the three-phase supply voltages and DC link voltage of the AF as the feedback signals and generates the three-phase reference supply currents which are inputs to the PWM current controller. A prototype laboratory model of the AF is developed and its performance is examined for voltage regulation and compensation of harmonics, power factor and unbalance. The experimental results are given and discussed in detail.
{"title":"DSP based implementation of sliding mode control on an active filter for voltage regulation and compensation of harmonics, power factor and unbalance of nonlinear loads","authors":"B.N. Singh, B. Shigh, A. Chandra, K. Al-haddad","doi":"10.1109/IECON.1999.816521","DOIUrl":"https://doi.org/10.1109/IECON.1999.816521","url":null,"abstract":"A TMS320C31 DSP based new and simple control algorithm of a three-phase shunt active filter to regulate load terminal voltage, harmonics elimination, power factor correction and balancing of the nonlinear unbalanced loads is proposed in this paper. A three-phase IGBT based voltage source inverter (VSI) with indirect current control (ICC) is considered as an active filter (AF). In indirect current control of the VSI, a carrier-based PWM control strategy is employed to generate the gating signals for devices used in the inverter. Two sliding mode controllers (SMCs) based closed-loop control scheme of the proposed AF uses the three-phase supply voltages and DC link voltage of the AF as the feedback signals and generates the three-phase reference supply currents which are inputs to the PWM current controller. A prototype laboratory model of the AF is developed and its performance is examined for voltage regulation and compensation of harmonics, power factor and unbalance. The experimental results are given and discussed in detail.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"4 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":"121624233","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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