Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778590
A. Bitoleanu, M. Popescu, M. Dobriceanu
This paper focuses on the harmonic at the network of the driving systems with DC motors and controlled rectifier. Notably, the total harmonic distortion factor (THD) is influenced by the rectifier commutation and by the load current filtering. We found these influences (thyristors commutation and filtering inductivity) concerning the waves of the currents in the secondary of the transformer and in the network and the waves of the voltage in the secondary of the transformer, as well as the correspondent harmonics spectra. The achieved MATLAB-STMULINK model corresponds to a driving system supplied from a three-phase controlled rectifier. The numerical results are accompanied by experimental verifications, which validate the Simulink models and we done a comparison by IEC 1000-2-1 relation. The active harmonics filtering in dynamic state is discussed.
{"title":"Power Quality at the Input of DC Motor and Controlled Rectifier Driving Systems","authors":"A. Bitoleanu, M. Popescu, M. Dobriceanu","doi":"10.1109/EPEPEMC.2006.4778590","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778590","url":null,"abstract":"This paper focuses on the harmonic at the network of the driving systems with DC motors and controlled rectifier. Notably, the total harmonic distortion factor (THD) is influenced by the rectifier commutation and by the load current filtering. We found these influences (thyristors commutation and filtering inductivity) concerning the waves of the currents in the secondary of the transformer and in the network and the waves of the voltage in the secondary of the transformer, as well as the correspondent harmonics spectra. The achieved MATLAB-STMULINK model corresponds to a driving system supplied from a three-phase controlled rectifier. The numerical results are accompanied by experimental verifications, which validate the Simulink models and we done a comparison by IEC 1000-2-1 relation. The active harmonics filtering in dynamic state is discussed.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130153388","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778685
B. Polajžer, G. Štumberger, D. Dolinar
The dynamic behavior of the discussed radial active magnetic bearings is analyzed using a finite element-based parametrization coupling model. Numerical calculations of the open-loop controlled and the closed-loop controlled system are performed. The results presented show that the magnetic nonlinearities and cross-coupling effects deteriorate the overall system performances.
{"title":"Numerical Analysis of Radial Active Magnetic Bearings","authors":"B. Polajžer, G. Štumberger, D. Dolinar","doi":"10.1109/EPEPEMC.2006.4778685","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778685","url":null,"abstract":"The dynamic behavior of the discussed radial active magnetic bearings is analyzed using a finite element-based parametrization coupling model. Numerical calculations of the open-loop controlled and the closed-loop controlled system are performed. The results presented show that the magnetic nonlinearities and cross-coupling effects deteriorate the overall system performances.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134029842","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778563
K. Ishikawa, T. Ohmae
In this paper, a reliable control method is proposed for a position servo system using multiple loops. The position servo system has two minor-loops which are a speed loop and a current loop. If one minor feedback loop fails, such as a case of the speed sensor break down, the position servo system becomes unstable. To cope with this problem, the proposed method uses an equivalent transfer function (ETF) as an active redundancy compensation after the loop failure. The ETF is designed so that it does not change the transfer function of the whole system before and after the loop failure. Therefore, the stability of the position control system using this proposed method is guaranteed even if the speed feedback loop fails or the current feedback loop fails. The effectiveness of this proposed method is confirmed by the experimental results
{"title":"Reliable Control Using Equivalent Transfer Function for Position Servo System","authors":"K. Ishikawa, T. Ohmae","doi":"10.1109/EPEPEMC.2006.4778563","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778563","url":null,"abstract":"In this paper, a reliable control method is proposed for a position servo system using multiple loops. The position servo system has two minor-loops which are a speed loop and a current loop. If one minor feedback loop fails, such as a case of the speed sensor break down, the position servo system becomes unstable. To cope with this problem, the proposed method uses an equivalent transfer function (ETF) as an active redundancy compensation after the loop failure. The ETF is designed so that it does not change the transfer function of the whole system before and after the loop failure. Therefore, the stability of the position control system using this proposed method is guaranteed even if the speed feedback loop fails or the current feedback loop fails. The effectiveness of this proposed method is confirmed by the experimental results","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130857904","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778429
G. Klančar, I. Škrjanc
A model predictive trajectory tracking control applied to a mobile robot is presented in this paper. Prediction model derived from linearized tracking error dynamics is used to predict future system behavior. A control law is derived from quadratic cost function consisting of system tracking error and control effort. Experimental results on a real mobile are presented and a comparison of the obtained control to a time-varying state feedback controller is given. The proposed controller includes velocity and acceleration constraints to prevent mobile robot from slipping and a Smith predictor is used to compensate for vision system dead-time. Some future work ideas are discussed as well.
{"title":"Predictive Trajectory Tracking Control for Mobile Robots","authors":"G. Klančar, I. Škrjanc","doi":"10.1109/EPEPEMC.2006.4778429","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778429","url":null,"abstract":"A model predictive trajectory tracking control applied to a mobile robot is presented in this paper. Prediction model derived from linearized tracking error dynamics is used to predict future system behavior. A control law is derived from quadratic cost function consisting of system tracking error and control effort. Experimental results on a real mobile are presented and a comparison of the obtained control to a time-varying state feedback controller is given. The proposed controller includes velocity and acceleration constraints to prevent mobile robot from slipping and a Smith predictor is used to compensate for vision system dead-time. Some future work ideas are discussed as well.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133291556","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778670
M. Cirrincione, M. Pucci, G. Cirrincione, G. Capolino
This paper summarizes the research activity of the authors in the field of sensorless control of induction machine drives based on new linear neural techniques. In particular it describes and compares three speed observers: the MCA EXIN + MRAS Observer, the MCA EXIN + Reduced Order Observer and the TLS Full-order Luenberger Adaptive Observer. Common to all of three observers is the on-line estimation of the speed by a new linear neural technique, which solves in a recursive way a Total Least-Squares problem: one of them employs the TLS EXIN neuron and the other two the MCA EXIN + neuron, which is an improvement of the former. The speed observers have been verified in numerical simulations and experimentally on a test setup and have been also compared experimentally with one another.
{"title":"Sensorless Control of Induction Motor Drives by New Linear Neural Techniques","authors":"M. Cirrincione, M. Pucci, G. Cirrincione, G. Capolino","doi":"10.1109/EPEPEMC.2006.4778670","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778670","url":null,"abstract":"This paper summarizes the research activity of the authors in the field of sensorless control of induction machine drives based on new linear neural techniques. In particular it describes and compares three speed observers: the MCA EXIN + MRAS Observer, the MCA EXIN + Reduced Order Observer and the TLS Full-order Luenberger Adaptive Observer. Common to all of three observers is the on-line estimation of the speed by a new linear neural technique, which solves in a recursive way a Total Least-Squares problem: one of them employs the TLS EXIN neuron and the other two the MCA EXIN + neuron, which is an improvement of the former. The speed observers have been verified in numerical simulations and experimentally on a test setup and have been also compared experimentally with one another.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131873070","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778573
S. Dodds, K. Szabat
The general theory of forced dynamic control is first given. Its application to electric drives with significant vibration modes in the mechanical load is then considered. Simulation and experimental results are compared for a two-mass system comprising a DC motor driving a balanced mass via a thin shaft.
{"title":"Forced Dynamic Control of Electric Drives with Vibration Modes in the Mechanical Load","authors":"S. Dodds, K. Szabat","doi":"10.1109/EPEPEMC.2006.4778573","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778573","url":null,"abstract":"The general theory of forced dynamic control is first given. Its application to electric drives with significant vibration modes in the mechanical load is then considered. Simulation and experimental results are compared for a two-mass system comprising a DC motor driving a balanced mass via a thin shaft.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127898908","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778661
A. Emadi, S. Williamson
The recent trend in the automotive industry is to create a new fleet of advanced vehicular technologies. The most popularly targeted automotive technology is the hybrid electric vehicle (HEV) powered by the existing internal combustion engine (ICE) technology as well as a suitable electric traction motor system. In addition, the auto industry has shown an increased interest in fuel cell vehicles (FCV) as well as battery electric vehicles (BEV), which probably might become the solutions to the inevitable oil shortage scenario that will face the world in about 50 years' time. This paper aims at providing a detailed technological overview of proposed HEV, FCV, and BEV automotive technologies. Furthermore, this paper will present a brief comparative analysis of the above-mentioned advanced vehicular systems from the point of view of the overall cost, fuel economy, and well-to-wheels (WTW) efficiency. A brief summary of commercially available HEVs and developed FCV prototypes will be presented as well.
{"title":"Modern Automotive Power Systems: Advancements into the Future","authors":"A. Emadi, S. Williamson","doi":"10.1109/EPEPEMC.2006.4778661","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778661","url":null,"abstract":"The recent trend in the automotive industry is to create a new fleet of advanced vehicular technologies. The most popularly targeted automotive technology is the hybrid electric vehicle (HEV) powered by the existing internal combustion engine (ICE) technology as well as a suitable electric traction motor system. In addition, the auto industry has shown an increased interest in fuel cell vehicles (FCV) as well as battery electric vehicles (BEV), which probably might become the solutions to the inevitable oil shortage scenario that will face the world in about 50 years' time. This paper aims at providing a detailed technological overview of proposed HEV, FCV, and BEV automotive technologies. Furthermore, this paper will present a brief comparative analysis of the above-mentioned advanced vehicular systems from the point of view of the overall cost, fuel economy, and well-to-wheels (WTW) efficiency. A brief summary of commercially available HEVs and developed FCV prototypes will be presented as well.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124155981","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 : 2006-08-01DOI: 10.1080/09398368.2008.11463662
A. Rufer, S. Lemofouet
This paper presents a study and experimentation of a hybrid energy storage system prototype, based on Compressed Air, where the charging and discharging is done within maximum efficiency conditions of the volumetric machine. As the maximum efficiency conditions impose the level of the converted power, an intermittent time-modulated operation mode is applied to the thermodynamic converter to obtain a variable converted power. A smoothly variable output power is achieved with the help of a supercapacitive auxiliary storage device used as a filter. The paper describes the concept of the system, and reports on the calculated energetic efficiency performance, as well as measured on a first prototype system.
{"title":"Efficiency Considerations and Measurements of a Hybrid Energy Storage System based on Compressed Air and Super Capacitors","authors":"A. Rufer, S. Lemofouet","doi":"10.1080/09398368.2008.11463662","DOIUrl":"https://doi.org/10.1080/09398368.2008.11463662","url":null,"abstract":"This paper presents a study and experimentation of a hybrid energy storage system prototype, based on Compressed Air, where the charging and discharging is done within maximum efficiency conditions of the volumetric machine. As the maximum efficiency conditions impose the level of the converted power, an intermittent time-modulated operation mode is applied to the thermodynamic converter to obtain a variable converted power. A smoothly variable output power is achieved with the help of a supercapacitive auxiliary storage device used as a filter. The paper describes the concept of the system, and reports on the calculated energetic efficiency performance, as well as measured on a first prototype system.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114359188","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778687
S. Kanerva, J. Kaukonen, Á. Szűcs, Terttu Hautamaki
Coupled simulation environment is presented, where electrical machines are modeled by the finite element method (FEM) with circuit equations and coupled to converter models in a system simulator. The method is based on weak coupling, providing possibility for multiple time step levels in the system model. Examples concerning the analysis of current and voltage harmonics, additional losses and tooth forces, are presented for 2 MW cage induction motor, 9 MW and 12.5 MW synchronous motors and 1.5 MW permanent magnet synchronous motor supplied by frequency converters. Also the future outlook of coupled FEM-system simulation is discussed in terms of the actual need for coupled models and the research interests on the coupling method development.
{"title":"Coupled FEM-Control Simulation in the Analysis of Electrical Machines and Converters","authors":"S. Kanerva, J. Kaukonen, Á. Szűcs, Terttu Hautamaki","doi":"10.1109/EPEPEMC.2006.4778687","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778687","url":null,"abstract":"Coupled simulation environment is presented, where electrical machines are modeled by the finite element method (FEM) with circuit equations and coupled to converter models in a system simulator. The method is based on weak coupling, providing possibility for multiple time step levels in the system model. Examples concerning the analysis of current and voltage harmonics, additional losses and tooth forces, are presented for 2 MW cage induction motor, 9 MW and 12.5 MW synchronous motors and 1.5 MW permanent magnet synchronous motor supplied by frequency converters. Also the future outlook of coupled FEM-system simulation is discussed in terms of the actual need for coupled models and the research interests on the coupling method development.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114813900","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 : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778600
H. Valean, L. Miclea, S. Enyedi
The paper presents a software agents society, which implements a more efficient control and monitoring system for a complex heterogeneous system-multiple hydroelectric power plants connected in a chain on Somes river. The agent society can be superimposed over the existing SCADA control and monitoring network and aims to increase performance, efficiency and stability in the existing control and monitoring system
{"title":"Software Agents Society for the Surveillance and Control of a Hydroelectric Power Plant Chain","authors":"H. Valean, L. Miclea, S. Enyedi","doi":"10.1109/EPEPEMC.2006.4778600","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778600","url":null,"abstract":"The paper presents a software agents society, which implements a more efficient control and monitoring system for a complex heterogeneous system-multiple hydroelectric power plants connected in a chain on Somes river. The agent society can be superimposed over the existing SCADA control and monitoring network and aims to increase performance, efficiency and stability in the existing control and monitoring system","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114523382","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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