Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872062
E. Jamshidpour, Maryam Shahbazi, S. Saadate, P. Poure, E. Gholipour
Single-ended non-isolated DC-DC converters are used in embedded and safety critical applications. In more applications like airplanes, trains, electric vehicles, ships and distributed power systems fast fault detection is a mandatory step in order to make a suitable response to a switch fault. On the other hand, a fault tolerant topology is necessary to prevent further damage and to guaranty continuity of service. This paper proposes a very fast and efficient open circuit switch fault detection method associated to fault tolerant converter topology. Fault detection method is based on the shape of the inductor current. To perform very fast switch fault detection a Field Programmable Gate Array (FPGA) digital target is used for the implementation of the proposed method and control. No additional sensors, which increase system cost and reduce reliability, are required for this detection method. Results show that the proposed method is fast, robust, and can be done in a few microseconds.
{"title":"FPGA based fault detection and fault tolerance operation in DC-DC converters","authors":"E. Jamshidpour, Maryam Shahbazi, S. Saadate, P. Poure, E. Gholipour","doi":"10.1109/SPEEDAM.2014.6872062","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872062","url":null,"abstract":"Single-ended non-isolated DC-DC converters are used in embedded and safety critical applications. In more applications like airplanes, trains, electric vehicles, ships and distributed power systems fast fault detection is a mandatory step in order to make a suitable response to a switch fault. On the other hand, a fault tolerant topology is necessary to prevent further damage and to guaranty continuity of service. This paper proposes a very fast and efficient open circuit switch fault detection method associated to fault tolerant converter topology. Fault detection method is based on the shape of the inductor current. To perform very fast switch fault detection a Field Programmable Gate Array (FPGA) digital target is used for the implementation of the proposed method and control. No additional sensors, which increase system cost and reduce reliability, are required for this detection method. Results show that the proposed method is fast, robust, and can be done in a few microseconds.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114364992","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871925
Masahiro Aoyama, T. Noguchi
This paper describes estimation of the rotor winding current based on a mathematical model of a self-excited wound-field synchronous motor where the space harmonics power is utilized for the field magnetization instead of the permanent magnets. The operation principle of the proposed motor is explicated by a voltage equation on the synchronous rotating reference frame. Furthermore, the rotor winding current is compared between the FEM based simulation and the mathematical calculation. Consequently, it has been confirmed that both operation characteristics in the steady state agree very well and indicate similar tendency.
{"title":"Estimation of rotor current based on mathematical model of wound-field synchronous motor self-excited by space harmonics","authors":"Masahiro Aoyama, T. Noguchi","doi":"10.1109/SPEEDAM.2014.6871925","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871925","url":null,"abstract":"This paper describes estimation of the rotor winding current based on a mathematical model of a self-excited wound-field synchronous motor where the space harmonics power is utilized for the field magnetization instead of the permanent magnets. The operation principle of the proposed motor is explicated by a voltage equation on the synchronous rotating reference frame. Furthermore, the rotor winding current is compared between the FEM based simulation and the mathematical calculation. Consequently, it has been confirmed that both operation characteristics in the steady state agree very well and indicate similar tendency.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116263847","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871909
A. Gofuku, Yuta Okido, T. Yano
The authors have developed a spherical motor called as 14-12 spherical motor. The 14-12 spherical motor is composed of spherical rotor with permanent magnets, stator of spherical shell with electro-magnets, excitation electric circuit of electro-magnets, and power supply. The motor has two kinds of rotation axes and totally six rotation axes. The previous studies presented its structure, working principle of rotation by five-phase alternative current (AC), and experimental evaluation of rotation torque and cogging torque around one of rotation axes. This study evaluates the rotation torque around another rotation axis and cogging torque in detail to grasp the basic rotation performances of the 14-12 spherical motor.
{"title":"Evaluation of basic performances of a 14-12 spherical motor","authors":"A. Gofuku, Yuta Okido, T. Yano","doi":"10.1109/SPEEDAM.2014.6871909","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871909","url":null,"abstract":"The authors have developed a spherical motor called as 14-12 spherical motor. The 14-12 spherical motor is composed of spherical rotor with permanent magnets, stator of spherical shell with electro-magnets, excitation electric circuit of electro-magnets, and power supply. The motor has two kinds of rotation axes and totally six rotation axes. The previous studies presented its structure, working principle of rotation by five-phase alternative current (AC), and experimental evaluation of rotation torque and cogging torque around one of rotation axes. This study evaluates the rotation torque around another rotation axis and cogging torque in detail to grasp the basic rotation performances of the 14-12 spherical motor.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124749631","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872078
V. Leite, J. Batista, F. Chenlo, J. Afonso
This paper presents new developments of a robust and low-cost instrument - less than 600 € - for monitoring and processing I-V and P-V characteristics of photovoltaic (PV) modules and high voltage strings. The characteristics can be traced on an oscilloscope or using a developed a LabVIEW application. It is a simple instrument because only fundamental electronic circuits are used. The equipment consists of a flexible configuration, developed from a previous work, based on a fast varying load based on a power MOSFET. The MOSFET was controlled by means of suitable gate-source voltage control signal in order to improve the tracing of I-V and P-V characteristics on an oscilloscope. The contribution of this work includes new developments of a previous I-V tracer in order to be use with high voltage strings and a low-cost DAQ monitoring system based on two applications developed in LabVIEW - one for PV modules and the other for PV strings. On the other hand, the robustness for high voltage strings was strongly improved in view of field tests for fault diagnosis analysis. Experimental results obtained with the new instrument are presented with modules and different strings available with voltages up to 1000 volt.
{"title":"Low-cost I-V tracer for photovoltaic modules and strings","authors":"V. Leite, J. Batista, F. Chenlo, J. Afonso","doi":"10.1109/SPEEDAM.2014.6872078","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872078","url":null,"abstract":"This paper presents new developments of a robust and low-cost instrument - less than 600 € - for monitoring and processing I-V and P-V characteristics of photovoltaic (PV) modules and high voltage strings. The characteristics can be traced on an oscilloscope or using a developed a LabVIEW application. It is a simple instrument because only fundamental electronic circuits are used. The equipment consists of a flexible configuration, developed from a previous work, based on a fast varying load based on a power MOSFET. The MOSFET was controlled by means of suitable gate-source voltage control signal in order to improve the tracing of I-V and P-V characteristics on an oscilloscope. The contribution of this work includes new developments of a previous I-V tracer in order to be use with high voltage strings and a low-cost DAQ monitoring system based on two applications developed in LabVIEW - one for PV modules and the other for PV strings. On the other hand, the robustness for high voltage strings was strongly improved in view of field tests for fault diagnosis analysis. Experimental results obtained with the new instrument are presented with modules and different strings available with voltages up to 1000 volt.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123601957","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871972
L. Castellini, M. Carmignano, M. D'Andrea
This paper represents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-cutting applications, for the dynamic focus adjustment. The motor is directly integrated with the mechanical components in a rotating-ballscrew architecture in order to minimize the total inertia and the actuator's size. The dynamic motion trajectory imposes a high acceleration-torque at high speeds. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent dimensional limits, the proposed motor has the PMs directly glued on the surface of the steel nut that represents the “rotor”. Test results confirm the performance of the system and the goodness of the prototype.
{"title":"Design of a 10p-12s SMPM synchronous machine for a dynamic focus adjustment of a laser beam","authors":"L. Castellini, M. Carmignano, M. D'Andrea","doi":"10.1109/SPEEDAM.2014.6871972","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871972","url":null,"abstract":"This paper represents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-cutting applications, for the dynamic focus adjustment. The motor is directly integrated with the mechanical components in a rotating-ballscrew architecture in order to minimize the total inertia and the actuator's size. The dynamic motion trajectory imposes a high acceleration-torque at high speeds. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent dimensional limits, the proposed motor has the PMs directly glued on the surface of the steel nut that represents the “rotor”. Test results confirm the performance of the system and the goodness of the prototype.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122652778","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872083
F. Bizzozero, M. Giassi, G. Gruosso, S. Bozzi, G. Passoni
This paper presents a comparison among two types of linear generators for wave energy conversion: an inner-permanent-magnet-slotted-tubular-linear-generator (IPM-STLG) and an outer-permanent-magnet-slotless-tubular-linear-generator (OPM-STLG). The magnetic and electric quantities are extracted and evaluated using Finite Element Method Magnetics (FEMM) software and Matlab. These quantities include magnetic flux, cogging forces and end effects, inductances, currents, e.m.f., and power. In addition, a comparison of the two topologies and the different parameters has been performed. The aim of this work is to show a methodology to design Tubular linear generators for Sea Wave energy production, together with a comparison among different architectures.
{"title":"Dynamic model, parameter extraction, and analysis of two topologies of a tubular linear generator for seawave energy production","authors":"F. Bizzozero, M. Giassi, G. Gruosso, S. Bozzi, G. Passoni","doi":"10.1109/SPEEDAM.2014.6872083","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872083","url":null,"abstract":"This paper presents a comparison among two types of linear generators for wave energy conversion: an inner-permanent-magnet-slotted-tubular-linear-generator (IPM-STLG) and an outer-permanent-magnet-slotless-tubular-linear-generator (OPM-STLG). The magnetic and electric quantities are extracted and evaluated using Finite Element Method Magnetics (FEMM) software and Matlab. These quantities include magnetic flux, cogging forces and end effects, inductances, currents, e.m.f., and power. In addition, a comparison of the two topologies and the different parameters has been performed. The aim of this work is to show a methodology to design Tubular linear generators for Sea Wave energy production, together with a comparison among different architectures.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124146314","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872109
A. Brazhnikov, N. Dovzhenko, A. Minkin, O. Pomolotova, A. Litvinenko, Viktoriya A. Shilova
The prospects for the use of multiphase (i.e. having the number of phases more than four) asynchronous linear and non-linear drives in the field of vehicles were presented and described in a number of papers. However the increase of the phase number of asynchronous electric drive system allows not only to improve a number of its technical-and-economic characteristics, but also to create the hybrid traction drives according to scheme “AC Diesel-generator - Commutator - AC induction motor(s)” which will differ fundamentally from the existing ones, and have more simple design and less energy losses (in comparison with analogous existing hybrid drives). These AC hybrid traction drives of novel type are based on the use of the multiphase Diesel generators and non-traditional controlled multiphase induction motors.
{"title":"Multiphase hybrid traction drives for electrical vehicles","authors":"A. Brazhnikov, N. Dovzhenko, A. Minkin, O. Pomolotova, A. Litvinenko, Viktoriya A. Shilova","doi":"10.1109/SPEEDAM.2014.6872109","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872109","url":null,"abstract":"The prospects for the use of multiphase (i.e. having the number of phases more than four) asynchronous linear and non-linear drives in the field of vehicles were presented and described in a number of papers. However the increase of the phase number of asynchronous electric drive system allows not only to improve a number of its technical-and-economic characteristics, but also to create the hybrid traction drives according to scheme “AC Diesel-generator - Commutator - AC induction motor(s)” which will differ fundamentally from the existing ones, and have more simple design and less energy losses (in comparison with analogous existing hybrid drives). These AC hybrid traction drives of novel type are based on the use of the multiphase Diesel generators and non-traditional controlled multiphase induction motors.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124208114","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871973
L. Castellini, M. Carmignano, M. D'Andrea
This paper presents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-welding machine for the dynamic wobble of the beam. The motor is directly integrated with the mechanical component in a rotating architecture in order to minimize the total inertia and the actuator's size. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent envelope requirements, the proposed motor has the PMs directly glued on the surface of the rotor steel made in one piece. Test results confirm the performance of the system and prototype.
{"title":"Design of 18 krpm rated speed SMPM synchronous machine for “wobble” laser welding","authors":"L. Castellini, M. Carmignano, M. D'Andrea","doi":"10.1109/SPEEDAM.2014.6871973","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871973","url":null,"abstract":"This paper presents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-welding machine for the dynamic wobble of the beam. The motor is directly integrated with the mechanical component in a rotating architecture in order to minimize the total inertia and the actuator's size. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent envelope requirements, the proposed motor has the PMs directly glued on the surface of the rotor steel made in one piece. Test results confirm the performance of the system and prototype.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126147920","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871929
A. Lindner, I. Hahn
A small size permanent magnet flux-switching machine is designed with the aim to reduce the undesired leakage flux outside the stator. Different design alternatives are considered using a C-core type permanent magnet flux-switching machine. The leakage flux outside the stator of a permanent magnet flux-switching machine can effectively be reduced by altering the stator structure. To preserve the high torque capability of the flux-switching machine different design modifications of the stator structure have to be applied.
{"title":"Simulation of a permanent magnet flux-switching machine with reduced outer stator leakage flux","authors":"A. Lindner, I. Hahn","doi":"10.1109/SPEEDAM.2014.6871929","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871929","url":null,"abstract":"A small size permanent magnet flux-switching machine is designed with the aim to reduce the undesired leakage flux outside the stator. Different design alternatives are considered using a C-core type permanent magnet flux-switching machine. The leakage flux outside the stator of a permanent magnet flux-switching machine can effectively be reduced by altering the stator structure. To preserve the high torque capability of the flux-switching machine different design modifications of the stator structure have to be applied.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130117429","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872050
D. Baimel, R. Rabinovici, S. Tapuchi
The paper presents novel Phase Shifted PWM method for multi-level inverters operated in the over-modulation range. The proposed method is based on combination of Generic Phase Shifted PWM method with third harmonic injection method. The first significant advantage of the proposed method over the conventional Phase Disposition (PD) PWM is equal power flow between the H-bridges and almost equal distribution of the switching operations number between them. Furthermore, it provides improved linearity in the over-modulation range. The proposed method is analyzed by extensive simulation results. Several aspects as Total Harmonic Distortion Factor of the inverter output currents, and voltages, harmonic content, frequency spectrum distribution and switchings number are studied.
{"title":"Phase shifted PWM with third harmonic injection for over-modulation range operation","authors":"D. Baimel, R. Rabinovici, S. Tapuchi","doi":"10.1109/SPEEDAM.2014.6872050","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872050","url":null,"abstract":"The paper presents novel Phase Shifted PWM method for multi-level inverters operated in the over-modulation range. The proposed method is based on combination of Generic Phase Shifted PWM method with third harmonic injection method. The first significant advantage of the proposed method over the conventional Phase Disposition (PD) PWM is equal power flow between the H-bridges and almost equal distribution of the switching operations number between them. Furthermore, it provides improved linearity in the over-modulation range. The proposed method is analyzed by extensive simulation results. Several aspects as Total Harmonic Distortion Factor of the inverter output currents, and voltages, harmonic content, frequency spectrum distribution and switchings number are studied.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129640799","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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