Pub Date : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581174
D. Khodja, B. Chetate
In this work the strategy of the artificial intelligence (neural networks) is used to detect and localize the defects of the double stator asynchronous machine. In fact, several neural networks have been applied to the detection of defects. Then, we used a selector which allows activating only one network at a time. In this case, the selected network detects only defects corresponding to the torque developed by asynchronous machine. Finally, the simulation results were presented to show the effectiveness of artificial neural networks for automatic fault diagnosis.
{"title":"ANN based double stator asynchronous machine diagnosis taking torque change into account","authors":"D. Khodja, B. Chetate","doi":"10.1109/SPEEDHAM.2008.4581174","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581174","url":null,"abstract":"In this work the strategy of the artificial intelligence (neural networks) is used to detect and localize the defects of the double stator asynchronous machine. In fact, several neural networks have been applied to the detection of defects. Then, we used a selector which allows activating only one network at a time. In this case, the selected network detects only defects corresponding to the torque developed by asynchronous machine. Finally, the simulation results were presented to show the effectiveness of artificial neural networks for automatic fault diagnosis.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"67 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":"117071934","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.2008.4581182
T. Komma, H. Gueldner
The development of power supply technology has always been associated with the need for further miniaturization. One aspect of this trend is a design based on mathematical and physical principles and the implementation of magnetic components. The use of planar inductors and transformers offers the best preconditions for realizing this objective as they allow the windings to be integrated directly in the circuit board. Even when only a single series of planar cores is used, exactly identical winding configurations may have different air-gap positions. Different winding losses then result as a function of this position. The following paper presents a procedure for determining the effect of the air-gap position on the winding losses in planar inductors and its practical applicability on the basis of real examples.
{"title":"The effect of different air-gap positions on the winding losses of modern planar ferrite cores in switch mode power supplies","authors":"T. Komma, H. Gueldner","doi":"10.1109/SPEEDHAM.2008.4581182","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581182","url":null,"abstract":"The development of power supply technology has always been associated with the need for further miniaturization. One aspect of this trend is a design based on mathematical and physical principles and the implementation of magnetic components. The use of planar inductors and transformers offers the best preconditions for realizing this objective as they allow the windings to be integrated directly in the circuit board. Even when only a single series of planar cores is used, exactly identical winding configurations may have different air-gap positions. Different winding losses then result as a function of this position. The following paper presents a procedure for determining the effect of the air-gap position on the winding losses in planar inductors and its practical applicability on the basis of real examples.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"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":"125869667","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.2008.4581121
M. Tsuji, Shuo Chen, S. Hamasaki, Xiao-Dan Zhao, E. Yamada
The V/f control method is one of speed control methods for induction motors. We have proposed an auto-boost voltage method to compensate the voltage drop of stator impedance and a slip frequency compensation method to decrease the speed error caused by the change of load. Stability of the proposed V/f control system is analyzed by root locus. Steady-state torque-speed characteristics and transient responses of proposed system are presented by experimental system. Compared with the constant V/f control method, speed accuracy of proposed method is improved in various speeds and loads.
{"title":"A novel V/f control of induction motors for wide and precise speed operation","authors":"M. Tsuji, Shuo Chen, S. Hamasaki, Xiao-Dan Zhao, E. Yamada","doi":"10.1109/SPEEDHAM.2008.4581121","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581121","url":null,"abstract":"The V/f control method is one of speed control methods for induction motors. We have proposed an auto-boost voltage method to compensate the voltage drop of stator impedance and a slip frequency compensation method to decrease the speed error caused by the change of load. Stability of the proposed V/f control system is analyzed by root locus. Steady-state torque-speed characteristics and transient responses of proposed system are presented by experimental system. Compared with the constant V/f control method, speed accuracy of proposed method is improved in various speeds and loads.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"99 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":"124705500","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.2008.4581300
M. Carmeli, F. Dezza, R. Faranda, G. Marchegiani, M. Mauri
The use of distributed generating systems based on renewable energy sources has experienced a significant development in the last years. This paper focuses its attention on those based on photovoltaic systems. The intrinsic intermittent nature of this kind of renewable source implies the use of storage to accommodate fluctuations. The present paper proposes an hybrid solution in which photovoltaic source and gas engine are both present without storage device. With this configuration a new control technique can be used to maximizes system efficiency in both grid connection and stand alone operation mode.
{"title":"Advanced control strategy for PQ improvement in PV systems without energy storage device","authors":"M. Carmeli, F. Dezza, R. Faranda, G. Marchegiani, M. Mauri","doi":"10.1109/SPEEDHAM.2008.4581300","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581300","url":null,"abstract":"The use of distributed generating systems based on renewable energy sources has experienced a significant development in the last years. This paper focuses its attention on those based on photovoltaic systems. The intrinsic intermittent nature of this kind of renewable source implies the use of storage to accommodate fluctuations. The present paper proposes an hybrid solution in which photovoltaic source and gas engine are both present without storage device. With this configuration a new control technique can be used to maximizes system efficiency in both grid connection and stand alone operation mode.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"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":"129883062","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.2008.4581220
R. Hepburn
This paper examines why an electric ship is so desirable to a naval architect. A naval architect appreciates arrangeable volume, arrangeable equipment, large cargo capacity, large endurance, low thermal management, lots of bulkheads, few hull penetrations, equipment that is flexible and has multi-uses. Naval architects also need equipment that is reliable, available, and maintainable to reduce impacts to required ship accesses and personnel required to do maintenance. The fundamental characteristic of electric propulsion is an enabling topology that matches well to the needs of the naval architect.
{"title":"“Why a naval architect likes an electric ship” for SPEEDAM 2008 Ischia, Italy June 11th – 13th, 2008","authors":"R. Hepburn","doi":"10.1109/SPEEDHAM.2008.4581220","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581220","url":null,"abstract":"This paper examines why an electric ship is so desirable to a naval architect. A naval architect appreciates arrangeable volume, arrangeable equipment, large cargo capacity, large endurance, low thermal management, lots of bulkheads, few hull penetrations, equipment that is flexible and has multi-uses. Naval architects also need equipment that is reliable, available, and maintainable to reduce impacts to required ship accesses and personnel required to do maintenance. The fundamental characteristic of electric propulsion is an enabling topology that matches well to the needs of the naval architect.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"2014 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":"128231146","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.2008.4581064
D. Iannuzzi, D. Lauria, M. Pagano
In this paper a control strategy for an induction generator based stand-alone power system is examined. The tested system consists of a prime motor, an induction generator, a Voltage Source Inverter STATCOM and a variable load. The paper focus on dynamics performance and stability margin of the system under alternative control strategies. The regulation strategy is based on the control of dc and ac voltage profiles in order to contain the ac voltage droop on load. The control acts on prime mover torque and delay angle between inverter and induction generator voltages. The results of numerical simulation evidence the feasibility of control strategy.
{"title":"Advanced statcom control for stand alone induction generator power sources","authors":"D. Iannuzzi, D. Lauria, M. Pagano","doi":"10.1109/SPEEDHAM.2008.4581064","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581064","url":null,"abstract":"In this paper a control strategy for an induction generator based stand-alone power system is examined. The tested system consists of a prime motor, an induction generator, a Voltage Source Inverter STATCOM and a variable load. The paper focus on dynamics performance and stability margin of the system under alternative control strategies. The regulation strategy is based on the control of dc and ac voltage profiles in order to contain the ac voltage droop on load. The control acts on prime mover torque and delay angle between inverter and induction generator voltages. The results of numerical simulation evidence the feasibility of control strategy.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"34 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":"127258826","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.2008.4581071
N. Ishiduka, K. Yoshizaki, A. Komatsuzaki, I. Miki
The initial rotor position estimation is one of some serious problems about sensorless control of permanent magnet synchronous motors. This paper describes an estimation method of the initial rotor position for a slotless permanent magnet motor. The method is based on the variation of the current response when the voltage vector is applied to the motor. To estimate the polarity of the rotor magnetic pole, the rotor is slightly moved. As a result, the average of the estimation error is 3.42 electrical degrees.
{"title":"Estimation of initial rotor position for slotless PM motor","authors":"N. Ishiduka, K. Yoshizaki, A. Komatsuzaki, I. Miki","doi":"10.1109/SPEEDHAM.2008.4581071","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581071","url":null,"abstract":"The initial rotor position estimation is one of some serious problems about sensorless control of permanent magnet synchronous motors. This paper describes an estimation method of the initial rotor position for a slotless permanent magnet motor. The method is based on the variation of the current response when the voltage vector is applied to the motor. To estimate the polarity of the rotor magnetic pole, the rotor is slightly moved. As a result, the average of the estimation error is 3.42 electrical degrees.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"s3-47 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":"130214800","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.2008.4581236
Zhou Jinghua, Li Zhengxi
Based on the research on several multilevel basic topologies, this paper presents a general type of multilevel hybrid topology and introduces several selectable degrees of freedom. No matter what change in the hybrid topology it can be resulted in the combination and selection of the degrees of freedom, which expands the topology collection of the multilevel inverter. According to the degrees of freedom, all the cascaded topologies have been unified and several new types of hybrid topologies have been constructed. Based on the research on the hybrid topologies and multi-carrier SPWM (Sinusoidal Pulse Width Modulation) used for the multilevel inverter, this paper presents the hybrid modulation strategies for hybrid topologies. Simulation results prove that hybrid topologies and corresponding modulation strategies are effective, which lay the foundation for practical application of hybrid multilevel inverter topologies.
{"title":"Research on hybrid modulation strategies based on general hybrid topology of multilevel inverter","authors":"Zhou Jinghua, Li Zhengxi","doi":"10.1109/SPEEDHAM.2008.4581236","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581236","url":null,"abstract":"Based on the research on several multilevel basic topologies, this paper presents a general type of multilevel hybrid topology and introduces several selectable degrees of freedom. No matter what change in the hybrid topology it can be resulted in the combination and selection of the degrees of freedom, which expands the topology collection of the multilevel inverter. According to the degrees of freedom, all the cascaded topologies have been unified and several new types of hybrid topologies have been constructed. Based on the research on the hybrid topologies and multi-carrier SPWM (Sinusoidal Pulse Width Modulation) used for the multilevel inverter, this paper presents the hybrid modulation strategies for hybrid topologies. Simulation results prove that hybrid topologies and corresponding modulation strategies are effective, which lay the foundation for practical application of hybrid multilevel inverter topologies.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"29 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":"125490446","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.2008.4581194
K. Bhan, O. Kozorez, V. Kozoriz
Three concepts of maglev transport (electromagnetic controlled suspension, super conductive electrodynamic repulsion, and levitation based on the magnetic potential well (MPW) phenomenon) are considered as forms of technology addressing the challenges posed by global climate change. The MPW, free-body dynamics stability and main characteristics of MPW-levitation are presented in greater detail.
{"title":"A new superconductive levitation and its applications to reducing global climate change","authors":"K. Bhan, O. Kozorez, V. Kozoriz","doi":"10.1109/SPEEDHAM.2008.4581194","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581194","url":null,"abstract":"Three concepts of maglev transport (electromagnetic controlled suspension, super conductive electrodynamic repulsion, and levitation based on the magnetic potential well (MPW) phenomenon) are considered as forms of technology addressing the challenges posed by global climate change. The MPW, free-body dynamics stability and main characteristics of MPW-levitation are presented in greater detail.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"8 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":"125530631","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.2008.4581316
R. Manigrasso, F. Mapelli, M. Mauri, D. Tarsitano
Plug-in hybrid electric vehicle can be very useful to improve fuel economy and reduce the level of pollution especially in the urban area. This kind of vehicle needs a large battery stack to assure a good autonomy distance range in pure electric (zero emission) operating mode. To make this possible the dimension and the efficiency of the whole power train have to be optimized. The inverter in the electrical traction drive is one of the key component in the power train. In this paper a method for evaluating and reducing the inverter losses has been presented.
{"title":"Inverter loss minimization for a plug-in hybrid veihcle traction drive using DSC control","authors":"R. Manigrasso, F. Mapelli, M. Mauri, D. Tarsitano","doi":"10.1109/SPEEDHAM.2008.4581316","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581316","url":null,"abstract":"Plug-in hybrid electric vehicle can be very useful to improve fuel economy and reduce the level of pollution especially in the urban area. This kind of vehicle needs a large battery stack to assure a good autonomy distance range in pure electric (zero emission) operating mode. To make this possible the dimension and the efficiency of the whole power train have to be optimized. The inverter in the electrical traction drive is one of the key component in the power train. In this paper a method for evaluating and reducing the inverter losses has been presented.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"4 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":"126872716","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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