Pub Date : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581200
M. Benhaddadi, G. Olivier
This paper illustrates the induced enormous energy saving potential, permitted by using adjustable speed drives and high-efficiency motors. Furthermore, the most important barriers to larger high-efficiency motors & adjustable speed drives utilization are identified, and some incentives recommendations are given to overcome identified impediments. The authors consider that there is a strong case not only for putting in place obligatory level standards for the energy efficiency of electric motors and drives, but enhance incentives policies for larger market penetration.
{"title":"Barriers and incentives policies to high-efficiency motors and drives market penetration","authors":"M. Benhaddadi, G. Olivier","doi":"10.1109/SPEEDHAM.2008.4581200","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581200","url":null,"abstract":"This paper illustrates the induced enormous energy saving potential, permitted by using adjustable speed drives and high-efficiency motors. Furthermore, the most important barriers to larger high-efficiency motors & adjustable speed drives utilization are identified, and some incentives recommendations are given to overcome identified impediments. The authors consider that there is a strong case not only for putting in place obligatory level standards for the energy efficiency of electric motors and drives, but enhance incentives policies for larger market penetration.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125196953","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581256
T. Komrska, Z. Peroutka
This contribution deals with a new configuration of main traction converter for locomotives containing a medium-frequency transformer. The main emphasis is given on the proposed control of the converters around the medium-frequency transformer which transmits power using 400-Hz square-wave voltage. This paper describes designed control algorithms and presents theoretical conclusions, which are verified by experiments performed on designed laboratory prototype of rated power of 12 kW.
{"title":"Main traction converter with medium-frequency transformer: Control of converters around MF transformer","authors":"T. Komrska, Z. Peroutka","doi":"10.1109/SPEEDHAM.2008.4581256","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581256","url":null,"abstract":"This contribution deals with a new configuration of main traction converter for locomotives containing a medium-frequency transformer. The main emphasis is given on the proposed control of the converters around the medium-frequency transformer which transmits power using 400-Hz square-wave voltage. This paper describes designed control algorithms and presents theoretical conclusions, which are verified by experiments performed on designed laboratory prototype of rated power of 12 kW.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131854131","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581103
T. Weidinger, B. Piepenbreier
This paper presents an analysis of common-mode oscillations in electrical drive systems. The analysed oscillations occur particularly in electrical drive systems with active front end, common DC-link and long shielded motor cables. Because of resonant frequencies at 10 to 40 kHz low damping occurs. In the concerned frequency range switching operations generate a significant excitation. As the focus of this paper the common mode system of an electrical drive system is analysed and modelled. The damping behaviour of the choke and the switching of active front end and inverters have to be analysed very carefully. Simulations and measurements show apparent voltage stressing of motors, common mode losses and currents that disturb the drive system.
{"title":"Analysis and modelling of common-mode oscillations of electrical drive systems with active front end and long motor cables","authors":"T. Weidinger, B. Piepenbreier","doi":"10.1109/SPEEDHAM.2008.4581103","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581103","url":null,"abstract":"This paper presents an analysis of common-mode oscillations in electrical drive systems. The analysed oscillations occur particularly in electrical drive systems with active front end, common DC-link and long shielded motor cables. Because of resonant frequencies at 10 to 40 kHz low damping occurs. In the concerned frequency range switching operations generate a significant excitation. As the focus of this paper the common mode system of an electrical drive system is analysed and modelled. The damping behaviour of the choke and the switching of active front end and inverters have to be analysed very carefully. Simulations and measurements show apparent voltage stressing of motors, common mode losses and currents that disturb the drive system.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133833407","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581234
J. Szczepanik
A matrix NxM multi phase converter is a very simple structure incorporating NxM bi-directional switches, able to convert input voltages into output voltages of any shape and frequency. However, commutation problems and complicated control algorithms keep it from being utilized on a large scale. This paper shows a new field of application of the matrix converter, witch is working as a connection device between high speed, multiphase generator and power grid or as an interconnection device within power system. The task performed by this connection is a control of power flow and power flow oscillations dumping. The device can be viewed as a new FACTS device, based on straight forward energy conversion.
{"title":"Multiphase matrix converter for power systems application","authors":"J. Szczepanik","doi":"10.1109/SPEEDHAM.2008.4581234","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581234","url":null,"abstract":"A matrix NxM multi phase converter is a very simple structure incorporating NxM bi-directional switches, able to convert input voltages into output voltages of any shape and frequency. However, commutation problems and complicated control algorithms keep it from being utilized on a large scale. This paper shows a new field of application of the matrix converter, witch is working as a connection device between high speed, multiphase generator and power grid or as an interconnection device within power system. The task performed by this connection is a control of power flow and power flow oscillations dumping. The device can be viewed as a new FACTS device, based on straight forward energy conversion.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132239472","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581333
M. Silva, J. Trovão, P. Pereirinha, L. Marques
Electric vehicles (EVs) are fundamental components for a sustainable mobility. Unless a major technological breakthrough is achieved in energy storage and battery technology, EVs future will pass by multiple energy sources hybridisation, to benefit from the best characteristics of the energy sources available. In this paper, the energy and the mobility problems are introduced as well as the relevance of EVs in advanced and sustainable transportation. The EVs energy management issue is addressed together with the need for multiple energy sources hybridisation. Finally, a detailed description of the multiple energy sources monitoring system, particularly of its sensor data acquisition network, developed by the authors for their EV prototype, is presented along with collected data drawn from tests to one of the EV battery banks.
{"title":"Multiple energy sources monitoring system for electric vehicle","authors":"M. Silva, J. Trovão, P. Pereirinha, L. Marques","doi":"10.1109/SPEEDHAM.2008.4581333","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581333","url":null,"abstract":"Electric vehicles (EVs) are fundamental components for a sustainable mobility. Unless a major technological breakthrough is achieved in energy storage and battery technology, EVs future will pass by multiple energy sources hybridisation, to benefit from the best characteristics of the energy sources available. In this paper, the energy and the mobility problems are introduced as well as the relevance of EVs in advanced and sustainable transportation. The EVs energy management issue is addressed together with the need for multiple energy sources hybridisation. Finally, a detailed description of the multiple energy sources monitoring system, particularly of its sensor data acquisition network, developed by the authors for their EV prototype, is presented along with collected data drawn from tests to one of the EV battery banks.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133197945","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581180
C. Bruzzese, A. Giordani, E. Santini
In this paper a study about the different effects of static and dynamic rotor eccentricities on the external electric variables of a salient-pole synchronous generator is presented. Air-gap irregularities and related monitoring techniques have been studied in the past mainly about large hydro-generators (with practical applications), but similar problems have been recognized for on-board ship synchronous generators. These latter require a different approach, i.e. non-invasive monitoring. Static and dynamic rotor eccentricities were simulated in this work, for a ship-application sized generator, by using a dynamic model including inductances computed by parametric 3D FEM analysis of the faulty machine. Current, voltage, and no-load e.m.f. steady-state waveforms were analyzed by FFT and space-vector approach. No-load e.m.f. space vector is a sensitive fault indicator since its amplitude largely increases with the level of absolute eccentricity; furthermore, it is possible to discriminate the static eccentricity from the dynamic eccentricity utilizing the space vector loci ovality.
{"title":"Static and dynamic rotor eccentricity on-line detection and discrimination in synchronous generators By No-Load E.M.F. space vector loci analysis","authors":"C. Bruzzese, A. Giordani, E. Santini","doi":"10.1109/SPEEDHAM.2008.4581180","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581180","url":null,"abstract":"In this paper a study about the different effects of static and dynamic rotor eccentricities on the external electric variables of a salient-pole synchronous generator is presented. Air-gap irregularities and related monitoring techniques have been studied in the past mainly about large hydro-generators (with practical applications), but similar problems have been recognized for on-board ship synchronous generators. These latter require a different approach, i.e. non-invasive monitoring. Static and dynamic rotor eccentricities were simulated in this work, for a ship-application sized generator, by using a dynamic model including inductances computed by parametric 3D FEM analysis of the faulty machine. Current, voltage, and no-load e.m.f. steady-state waveforms were analyzed by FFT and space-vector approach. No-load e.m.f. space vector is a sensitive fault indicator since its amplitude largely increases with the level of absolute eccentricity; furthermore, it is possible to discriminate the static eccentricity from the dynamic eccentricity utilizing the space vector loci ovality.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"53 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116579834","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581292
R. Robinett, D. Wilson
This paper1 applies a novel nonlinear power flow control design to power engineering. The methodology [1], [2], [3] uniquely combines: concepts from thermodynamic exergy and entropy; Hamiltonian systems; Lyapunovpsilas direct method; Lyapunov optimal analysis; electric AC power concepts; and power flow analysis. Power engineering terminology is derived from the classical linear mass-spring-damper and an RLC electrical network. The methodology is then used to design both a Proportional-Integral-Derivative (PID) and PID with adaptive control architectures for both linear and nonlinear RLC dynamic network systems. The main contribution of this paper is to present a new nonlinear power flow control design as it applies to power engineering and how it is enhanced through adaptive control.
{"title":"Nonlinear power flow control applied to power engineering","authors":"R. Robinett, D. Wilson","doi":"10.1109/SPEEDHAM.2008.4581292","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581292","url":null,"abstract":"This paper1 applies a novel nonlinear power flow control design to power engineering. The methodology [1], [2], [3] uniquely combines: concepts from thermodynamic exergy and entropy; Hamiltonian systems; Lyapunovpsilas direct method; Lyapunov optimal analysis; electric AC power concepts; and power flow analysis. Power engineering terminology is derived from the classical linear mass-spring-damper and an RLC electrical network. The methodology is then used to design both a Proportional-Integral-Derivative (PID) and PID with adaptive control architectures for both linear and nonlinear RLC dynamic network systems. The main contribution of this paper is to present a new nonlinear power flow control design as it applies to power engineering and how it is enhanced through adaptive control.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117010692","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581136
J. Zarebski, J. Dąbrowski
In the paper the problem of modelling DC characteristics of SiC power Schottky diodes with thermal effects taken into account is considered. The electrothermal model of the investigated devices was formulated for SPICE and experimentally verified. The evaluation of accuracy of the elaborated model has been performed by comparison of measured and calculated characteristics of a selected SiC power Schottky diode.
{"title":"Non-isothermal characteristics of SiC power Schottky diodes","authors":"J. Zarebski, J. Dąbrowski","doi":"10.1109/SPEEDHAM.2008.4581136","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581136","url":null,"abstract":"In the paper the problem of modelling DC characteristics of SiC power Schottky diodes with thermal effects taken into account is considered. The electrothermal model of the investigated devices was formulated for SPICE and experimentally verified. The evaluation of accuracy of the elaborated model has been performed by comparison of measured and calculated characteristics of a selected SiC power Schottky diode.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115548523","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581105
A. Kheldoun, B. Chetate
In vector controlled induction motor drives, the instantaneous rotor speed is measured using whether sensors or estimators. Since the basic Kalman filter is a state observer, its use in vector controlled schemes has received much attention. However, these schemes are based on the assumption that the existence of iron loss in an induction motor may be neglected. The paper shows the effect of iron loss on the extended Kalman filter performance that is designed on the basis if the ironless induction machine model. Simulation results are carried out to demonstrate this effect as well as the effectiveness of the suggested approach to minimise the speed estimation error without modifying the observer algorithm.
{"title":"Compensation for the iron loss effect in EKF-based speed estimation of vector controlled induction motors","authors":"A. Kheldoun, B. Chetate","doi":"10.1109/SPEEDHAM.2008.4581105","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581105","url":null,"abstract":"In vector controlled induction motor drives, the instantaneous rotor speed is measured using whether sensors or estimators. Since the basic Kalman filter is a state observer, its use in vector controlled schemes has received much attention. However, these schemes are based on the assumption that the existence of iron loss in an induction motor may be neglected. The paper shows the effect of iron loss on the extended Kalman filter performance that is designed on the basis if the ironless induction machine model. Simulation results are carried out to demonstrate this effect as well as the effectiveness of the suggested approach to minimise the speed estimation error without modifying the observer algorithm.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121566802","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581287
A. Bitoleanu, M. Popescu, M. Dobriceanu
The paper is focused on the analysis of the power quality at the common connection point of the electrical grid that supplies the trams in the city of Craiova, Romania. For one week there has been performed the measuring of the current and voltage harmonics and of the harmonic distortion factors (HDF). There has been noticed the distortion of the current far beyond the admitted limits and the broad variation of the total harmonic distortion factor of the current. The causes have been determined and solutions for reducing the extent of current distortion have been recommended. The problem of the active filtering of the current is also discussed.
{"title":"Power quality in local transportation network - the case study","authors":"A. Bitoleanu, M. Popescu, M. Dobriceanu","doi":"10.1109/SPEEDHAM.2008.4581287","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581287","url":null,"abstract":"The paper is focused on the analysis of the power quality at the common connection point of the electrical grid that supplies the trams in the city of Craiova, Romania. For one week there has been performed the measuring of the current and voltage harmonics and of the harmonic distortion factors (HDF). There has been noticed the distortion of the current far beyond the admitted limits and the broad variation of the total harmonic distortion factor of the current. The causes have been determined and solutions for reducing the extent of current distortion have been recommended. The problem of the active filtering of the current is also discussed.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"237 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123748489","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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