Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778552
A. Leon, J. Solsona
This work deals with speed estimation in electric drives that include a Permanent Magnet Stepper Motor. On the one hand a nonlinear observer is designed, whereas on the other hand the rotor speed is estimated by using the dirty derivative from the measured position. By assuming model uncertainty and noisy measurements a comparison from the robustness point of view is presented. Advantages and disadvantages of both techniques are commented.
{"title":"Speed Estimation of PM Stepper Motors. Robustness Aspects","authors":"A. Leon, J. Solsona","doi":"10.1109/EPEPEMC.2006.4778552","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778552","url":null,"abstract":"This work deals with speed estimation in electric drives that include a Permanent Magnet Stepper Motor. On the one hand a nonlinear observer is designed, whereas on the other hand the rotor speed is estimated by using the dirty derivative from the measured position. By assuming model uncertainty and noisy measurements a comparison from the robustness point of view is presented. Advantages and disadvantages of both techniques are commented.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"134 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":"127695055","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.2006.4778531
V. Chrisanov, P. Szymczak, Włodzimierz Kamiński
In the paper the radial and axial permanent magnet synchronous machines (RPMSM, APMSM) are classified in accordance with the types of design topologies and degree of active electromagnetic materials utilization. To realize an express comparison analysis of these machines the generalized geometric method is presented. Unlike the other methods this approach is distinguished by very small time for calculation of the ratio of radial and axial machines volumes as well as the similar ratio of mechatronic modules based on these machines. Derived a simple analytical expression enables to draw 3D plot of the volume ratio of compared machines at different number of poles and various geometrical sizes. The comparative study shows, that at the increased number of poles and at certain stator and rotor configuration the APMSM confidently exceed the RPMSM in term of torque/power density.
{"title":"The Generalized Geometric Approach to Comparative Study of Permanent Magnet Synchronous Machines and Mechatronic Modules","authors":"V. Chrisanov, P. Szymczak, Włodzimierz Kamiński","doi":"10.1109/EPEPEMC.2006.4778531","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778531","url":null,"abstract":"In the paper the radial and axial permanent magnet synchronous machines (RPMSM, APMSM) are classified in accordance with the types of design topologies and degree of active electromagnetic materials utilization. To realize an express comparison analysis of these machines the generalized geometric method is presented. Unlike the other methods this approach is distinguished by very small time for calculation of the ratio of radial and axial machines volumes as well as the similar ratio of mechatronic modules based on these machines. Derived a simple analytical expression enables to draw 3D plot of the volume ratio of compared machines at different number of poles and various geometrical sizes. The comparative study shows, that at the increased number of poles and at certain stator and rotor configuration the APMSM confidently exceed the RPMSM in term of torque/power density.","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":"127924636","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.2006.4778431
V. Stoian, M. Ivanescu, Elena Stoian, Cristina Floriana Pană
This paper presents a new control method for mobile robots moving in its work field which is based on fuzzy logic and artificial potential field. First, the artificial potential field method is presented. The paper treats unconstrained movement based on attractive artificial potential field and after that discuss the constrained movement based on attractive and repulsive artificial potential field. A fuzzy controller is designed. Finally, some applications are presented.
{"title":"Using Artificial Potential Field Methods and Fuzzy Logic for Mobile Robot Control","authors":"V. Stoian, M. Ivanescu, Elena Stoian, Cristina Floriana Pană","doi":"10.1109/EPEPEMC.2006.4778431","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778431","url":null,"abstract":"This paper presents a new control method for mobile robots moving in its work field which is based on fuzzy logic and artificial potential field. First, the artificial potential field method is presented. The paper treats unconstrained movement based on attractive artificial potential field and after that discuss the constrained movement based on attractive and repulsive artificial potential field. A fuzzy controller is designed. Finally, some applications are presented.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"36 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":"132596132","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.2006.283149
D. Polenov, H. Mehlich, J. Lutz
Fuel cell power conditioning systems consist of one or several voltage converters as well as energy storage devices. For generation of required voltages and controlled energy transfer appropriate converter topologies are necessary. Low-voltage power MOSFETs often can be used as switching devices for such converters. Possible ways of utilisation of low-voltage MOSFETs in different topologies and the resulting requirements are discussed.
{"title":"Requirements for MOSFETs in Fuel Cell Power Conditioning Applications","authors":"D. Polenov, H. Mehlich, J. Lutz","doi":"10.1109/EPEPEMC.2006.283149","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.283149","url":null,"abstract":"Fuel cell power conditioning systems consist of one or several voltage converters as well as energy storage devices. For generation of required voltages and controlled energy transfer appropriate converter topologies are necessary. Low-voltage power MOSFETs often can be used as switching devices for such converters. Possible ways of utilisation of low-voltage MOSFETs in different topologies and the resulting requirements are discussed.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"170 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":"132931415","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.2006.4778472
S. Abe, M. Hirokawa, T. Zaitsu, T. Ninomiya
The bus architecture consisting of bus converter and Point of Load (POL) is generally used as distributed power supply system for IT infrastructure equipments. The most important factor is the system stability in bus architecture design. The overlap between the output impedance of bus converter and input impedance of POL causes system instability, and it has been an actual problem. Increasing the bus capacitor, system stability can be reduced easily. However, due to the limited space on the system board, increasing of bus capacitors is impractical. The urgent solution of the issue is desired strongly. This paper presents the stability design for on-board distributed power system consisting of full-regulated bus converter and POLs. The output impedance of the bus converter and the input impedance of the POL are analyzed, and it is conformed by experimentally for stability criterion. As a result, the standard of the discrimination of stability on a frequency response of input and output impedance is clarified. Furthermore, the design process for system stability is proposed.
{"title":"Study of Stabilization Design for On-Board Distributed Power Architecture","authors":"S. Abe, M. Hirokawa, T. Zaitsu, T. Ninomiya","doi":"10.1109/EPEPEMC.2006.4778472","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778472","url":null,"abstract":"The bus architecture consisting of bus converter and Point of Load (POL) is generally used as distributed power supply system for IT infrastructure equipments. The most important factor is the system stability in bus architecture design. The overlap between the output impedance of bus converter and input impedance of POL causes system instability, and it has been an actual problem. Increasing the bus capacitor, system stability can be reduced easily. However, due to the limited space on the system board, increasing of bus capacitors is impractical. The urgent solution of the issue is desired strongly. This paper presents the stability design for on-board distributed power system consisting of full-regulated bus converter and POLs. The output impedance of the bus converter and the input impedance of the POL are analyzed, and it is conformed by experimentally for stability criterion. As a result, the standard of the discrimination of stability on a frequency response of input and output impedance is clarified. Furthermore, the design process for system stability is proposed.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"14 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":"133290715","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.2006.4778557
M. Hasegawa, Y. Nitta, K. Matsui
This paper proposes a new current regulator for IPMSM sensorless drives under high speed region. It has been pointed out that the conventional current control system for IPMSM becomes unstable under high speed region, which caused by position estimation error. First, this paper shows that this phenomenon is caused by position estimation error, and this instability is especially emphasized under high speed region. To overcome this instability, two degrees of freedom (2 DOF) controller is proposed in this paper. Stability using the proposed current regulator is then analyzed theoretically, and the proposed controller can enlarge stable region of position sensorless control for IPMSM drives, which can conclude that the proposed controller is superior to that using conventional one
{"title":"Robust Current Regulator with 2 DOF Structure and Stability Analysis for IPMSM Drives under High Speed Region","authors":"M. Hasegawa, Y. Nitta, K. Matsui","doi":"10.1109/EPEPEMC.2006.4778557","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778557","url":null,"abstract":"This paper proposes a new current regulator for IPMSM sensorless drives under high speed region. It has been pointed out that the conventional current control system for IPMSM becomes unstable under high speed region, which caused by position estimation error. First, this paper shows that this phenomenon is caused by position estimation error, and this instability is especially emphasized under high speed region. To overcome this instability, two degrees of freedom (2 DOF) controller is proposed in this paper. Stability using the proposed current regulator is then analyzed theoretically, and the proposed controller can enlarge stable region of position sensorless control for IPMSM drives, which can conclude that the proposed controller is superior to that using conventional one","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":"132240609","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.2006.4778506
M. Gwóźdź, R. Porada
The paper considers Generator of the Spatial Magnetic Field for medicine purposes. One of essential blocks there is three-channel power electronics current source, powering set of space oriented induction coils (electromagnets) ¿ sources of magnetic field. The control module utilizes DSP based microcomputer for power electronics applications. The microcomputer is integrated with industrial PC in form of PCI card. The execution block utilizes three power electronics inverters, utilizing PWM strategy. The paper describes fundamentals of current source control algorithms and test results of laboratory model of generator.
{"title":"Utilization of Low Distortion Power Electronics Current Sources in Generator of Spatial Magnetic Field","authors":"M. Gwóźdź, R. Porada","doi":"10.1109/EPEPEMC.2006.4778506","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778506","url":null,"abstract":"The paper considers Generator of the Spatial Magnetic Field for medicine purposes. One of essential blocks there is three-channel power electronics current source, powering set of space oriented induction coils (electromagnets) ¿ sources of magnetic field. The control module utilizes DSP based microcomputer for power electronics applications. The microcomputer is integrated with industrial PC in form of PCI card. The execution block utilizes three power electronics inverters, utilizing PWM strategy. The paper describes fundamentals of current source control algorithms and test results of laboratory model of generator.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"200 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":"134072473","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.2006.4778485
T. Sun, Xueqin Zhu, Hongpeng Liu, Lian Liang, Peng Gao
In conventional converter phase-shifted zero-voltage-switching DC/DC converter, lagging leg losses ZVS capability at light load conditions, and output rectifier diodes operate with hard switching. A novel soft-switching bi-directional converter employing auxiliary resonant net is proposed to solve these problems. The proposed converter can not only achieve soft switching but also eliminate the circulating current by adding an active clamp circuit in the secondary side and using saturable inductor in the primary side. In result, soft-switching operation range is extended. And all switches satisfy ZVS conditions. Synchronous rectifier technique is adopted in the converter, so the conduction loss is eliminated. In this paper TMS320F240 DSP is used as control chip, and the digital control system of the converter is designed. The experimental results show the feasibility of the proposed converter.
{"title":"A Novel ZVS PWM FB DC/DC Converter Using Auxiliary Resonant Net","authors":"T. Sun, Xueqin Zhu, Hongpeng Liu, Lian Liang, Peng Gao","doi":"10.1109/EPEPEMC.2006.4778485","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778485","url":null,"abstract":"In conventional converter phase-shifted zero-voltage-switching DC/DC converter, lagging leg losses ZVS capability at light load conditions, and output rectifier diodes operate with hard switching. A novel soft-switching bi-directional converter employing auxiliary resonant net is proposed to solve these problems. The proposed converter can not only achieve soft switching but also eliminate the circulating current by adding an active clamp circuit in the secondary side and using saturable inductor in the primary side. In result, soft-switching operation range is extended. And all switches satisfy ZVS conditions. Synchronous rectifier technique is adopted in the converter, so the conduction loss is eliminated. In this paper TMS320F240 DSP is used as control chip, and the digital control system of the converter is designed. The experimental results show the feasibility of the proposed converter.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"17 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":"114795800","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.2006.4778458
G. Iwański, W. Koczara
A stand alone power generation system with doubly fed induction generator and its control method is presented in the paper. A slip-ring induction generator is equipped with the stator connected capacitances for filtering the switching frequency harmonics produced by the rotor connected power electronics converter. The proposed direct voltage control method, based on the stator voltage vector reference, provides fixed frequency and amplitude of the generated stator voltage operation. Different types of load (linear nonlinear) can be supplied keeping high quality voltage. A star connected stator provides the four wires system, supplying a single phase or unbalanced load. However the high load asymmetry produces the unbalanced stator voltage and in this case the additional part of the voltage control method is necessary for voltage asymmetry correction. As the main part of the control method bases of the positive sequence component of the stator voltage vector, the asymmetry correction algorithm bases on the negative sequence components. To extract both positive and negative sequence components of the stator voltage vector, two independent rotating frames are used. The coordinates systems rotates in opposite directions with synchronous and counter to synchronous angular speed. A PSIM software is used for control method design and prototyping. A proposed stand alone power generation system was build and tested. The developed stator voltage control with voltage asymmetry algorithm is proved by simulations and by oscillograms from laboratory tests
{"title":"Positive and Negative Sequence based Sensorless Control for Stand-Alone Slip-Ring Generator","authors":"G. Iwański, W. Koczara","doi":"10.1109/EPEPEMC.2006.4778458","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778458","url":null,"abstract":"A stand alone power generation system with doubly fed induction generator and its control method is presented in the paper. A slip-ring induction generator is equipped with the stator connected capacitances for filtering the switching frequency harmonics produced by the rotor connected power electronics converter. The proposed direct voltage control method, based on the stator voltage vector reference, provides fixed frequency and amplitude of the generated stator voltage operation. Different types of load (linear nonlinear) can be supplied keeping high quality voltage. A star connected stator provides the four wires system, supplying a single phase or unbalanced load. However the high load asymmetry produces the unbalanced stator voltage and in this case the additional part of the voltage control method is necessary for voltage asymmetry correction. As the main part of the control method bases of the positive sequence component of the stator voltage vector, the asymmetry correction algorithm bases on the negative sequence components. To extract both positive and negative sequence components of the stator voltage vector, two independent rotating frames are used. The coordinates systems rotates in opposite directions with synchronous and counter to synchronous angular speed. A PSIM software is used for control method design and prototyping. A proposed stand alone power generation system was build and tested. The developed stator voltage control with voltage asymmetry algorithm is proved by simulations and by oscillograms from laboratory tests","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"49 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":"117114568","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.2006.4778694
L. Gorgens, R. Siemieniec, Juan Sanchez
The rapidly increasing computation-capability, data-density and functionality of electronic systems are the driving forces for high-efficiency high power-density converters. Electronic systems are continuously increasing the demand for power, while simultaneously available space and cooling capability stays constant. This requires smaller form factors of the individual converter, higher efficiencies and higher output powers. To meet these demands, new power architectures, new converter-topologies and new MOSFET technologies are developed. In this paper we will review the basic operational modes for low-voltage semiconductors and mirror the resulting requirements with the capabilities of recent MOSFET technology developments.
{"title":"MOSFET Technology as a Key for High Power Density Converters","authors":"L. Gorgens, R. Siemieniec, Juan Sanchez","doi":"10.1109/EPEPEMC.2006.4778694","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778694","url":null,"abstract":"The rapidly increasing computation-capability, data-density and functionality of electronic systems are the driving forces for high-efficiency high power-density converters. Electronic systems are continuously increasing the demand for power, while simultaneously available space and cooling capability stays constant. This requires smaller form factors of the individual converter, higher efficiencies and higher output powers. To meet these demands, new power architectures, new converter-topologies and new MOSFET technologies are developed. In this paper we will review the basic operational modes for low-voltage semiconductors and mirror the resulting requirements with the capabilities of recent MOSFET technology developments.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"151 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":"123385815","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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