Pub Date : 2011-11-21DOI: 10.1109/EDPC.2011.6085536
A. Lelkes
This paper describes an automatic test system for small power electric motors with integrated intelligent control unit. The testing concept utilizes the sensors integrated in the motor and the communication capabilities of the drive. Therefore, the motors can be tested quickly, yet thoroughly during manufacturing without the need for cost intensive test stands.
{"title":"Test system for electric motors with integrated control unit","authors":"A. Lelkes","doi":"10.1109/EDPC.2011.6085536","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085536","url":null,"abstract":"This paper describes an automatic test system for small power electric motors with integrated intelligent control unit. The testing concept utilizes the sensors integrated in the motor and the communication capabilities of the drive. Therefore, the motors can be tested quickly, yet thoroughly during manufacturing without the need for cost intensive test stands.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127501864","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085568
O. Drubel, Jörg Waschek
Motor-driven pumps or compressors are required to transport fluids or gas. The efficiency of these converter driven motors can be optimized. A solution involving an optimized converter-asynchronous motor system to operate pumps and compressors with a stiff shaft has been developed and successfully tested up to 13 MW and 3000 rpm. The motor has 4 poles and is supplied with up to 100 Hz. In addition to an extensive speed range in operation, 4-pole motors have advantages in terms of reliability, efficiency and costs, which are essential features for pipeline applications and thermal power plants.
{"title":"Alternative stiff asynchronous motor design for efficient pipeline operation","authors":"O. Drubel, Jörg Waschek","doi":"10.1109/EDPC.2011.6085568","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085568","url":null,"abstract":"Motor-driven pumps or compressors are required to transport fluids or gas. The efficiency of these converter driven motors can be optimized. A solution involving an optimized converter-asynchronous motor system to operate pumps and compressors with a stiff shaft has been developed and successfully tested up to 13 MW and 3000 rpm. The motor has 4 poles and is supplied with up to 100 Hz. In addition to an extensive speed range in operation, 4-pole motors have advantages in terms of reliability, efficiency and costs, which are essential features for pipeline applications and thermal power plants.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130670834","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085531
L. Kostetzer, F. Hetemi, D. Gerling
The present paper presents a methodology to include noise prediction into virtual prototyping of an electric drive using numerical simulation tools. Field based solutions using FEM and IFEM methods are used in order to simulate electromagnetic induced vibrations and radiated sound in a permanent magnetic motor. The key feature is on the work-flow methodology and the coupling mechanism between the three computational models: electromagnetics, structural dynamics and acoustics. Transient force density signals are integrated over geometric sectors and transformed to frequency domain to be used in the vibration analysis. The complete displacement filed at the machine housing in then used to calculate the radiated sound pressure in the environment and microphone locations.
{"title":"Scalable system simulation for electric drives","authors":"L. Kostetzer, F. Hetemi, D. Gerling","doi":"10.1109/EDPC.2011.6085531","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085531","url":null,"abstract":"The present paper presents a methodology to include noise prediction into virtual prototyping of an electric drive using numerical simulation tools. Field based solutions using FEM and IFEM methods are used in order to simulate electromagnetic induced vibrations and radiated sound in a permanent magnetic motor. The key feature is on the work-flow methodology and the coupling mechanism between the three computational models: electromagnetics, structural dynamics and acoustics. Transient force density signals are integrated over geometric sectors and transformed to frequency domain to be used in the vibration analysis. The complete displacement filed at the machine housing in then used to calculate the radiated sound pressure in the environment and microphone locations.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121392249","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085543
O. Vitek, P. Procházka, I. Pazdera, V. Hajek
Brushless DC motor is currently well known and widely used in industry. However, electrical drives are usually assembled using several separate components like motor, control and power system. In contrary to this approach, the article describes developed compact electrical drive comprising all of them in one casing. Moreover, each part is designed and optimized for this application. It is intended to offer compact electronically commutated drive as a rival to common DC motor and therefore the low manufacturing expenses are required. Presented compact BLDC drive has been developed in cooperation with motor producer.
{"title":"Design of compact BLDC drive","authors":"O. Vitek, P. Procházka, I. Pazdera, V. Hajek","doi":"10.1109/EDPC.2011.6085543","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085543","url":null,"abstract":"Brushless DC motor is currently well known and widely used in industry. However, electrical drives are usually assembled using several separate components like motor, control and power system. In contrary to this approach, the article describes developed compact electrical drive comprising all of them in one casing. Moreover, each part is designed and optimized for this application. It is intended to offer compact electronically commutated drive as a rival to common DC motor and therefore the low manufacturing expenses are required. Presented compact BLDC drive has been developed in cooperation with motor producer.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114810258","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085565
G. Uygur, S. Sattler
A digital system exhibits a specific circuit structure and behavior. There are diverse methods of modeling structure and behavior, while manifold related to each other. In this paper we present a formalism to achieve an Automata Based theory for Composition (ABC) to model circuit structures in a unique manner. This means that the modeling automaton itself is unique for a given circuit structure (up to isomorphisms, e.g. alternative naming, symmetry). We get success on this approach by using a novel automata based parallel composition for discrete event systems named simultaneously-parallel composition. This composition establishes to automatically synthesize basic circuit entities to an overall circuit model, by preserving two axioms, synchronicity and asynchronicity. It is very suited to model and abstract complex hybrid systems with high safety and security issues. In addition, we show a novel representation of the behavior of the composed automata, embedding the states and transitions into open (2D) and closed (3D) diamonds, and discuss several theoretical and practical aspects.
{"title":"Parallel Composition - A practical solution","authors":"G. Uygur, S. Sattler","doi":"10.1109/EDPC.2011.6085565","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085565","url":null,"abstract":"A digital system exhibits a specific circuit structure and behavior. There are diverse methods of modeling structure and behavior, while manifold related to each other. In this paper we present a formalism to achieve an Automata Based theory for Composition (ABC) to model circuit structures in a unique manner. This means that the modeling automaton itself is unique for a given circuit structure (up to isomorphisms, e.g. alternative naming, symmetry). We get success on this approach by using a novel automata based parallel composition for discrete event systems named simultaneously-parallel composition. This composition establishes to automatically synthesize basic circuit entities to an overall circuit model, by preserving two axioms, synchronicity and asynchronicity. It is very suited to model and abstract complex hybrid systems with high safety and security issues. In addition, we show a novel representation of the behavior of the composed automata, embedding the states and transitions into open (2D) and closed (3D) diamonds, and discuss several theoretical and practical aspects.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125611041","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085539
K. Noguchi, C. Mishima, M. Yamazaki, H. Matsuoka, H. Mitarai, Y. Honkura
The authors have successfully developed a low-cost anisotropic NdFeB magnet powder with high coercivity value of 18kOe without any Dy additives by diffusion processing of Nd-Cu-Al element to anisotropic magnet powder produced by the d-HDDR method. This enhancement mechanism is to isolate the magnetic couple between grain of Nd2Fe14B phase by creation of non-magnetic grain boundaries of Nd and Cu. By surface coating on this anisotropic magnet powder, the long-term aging loss behavior under air at 150deg.C has been improved by 6% after 1,000hr compared to current MAGFINE material without powder surface coating. By using this new anisotropic bonded magnet (New-MAGFINE), small automotive motors with excellent thermal stability and low cost characteristics have become possible.
{"title":"Development of dy-free NdFeB anisotropic bonded magnet (New MAGFINE)","authors":"K. Noguchi, C. Mishima, M. Yamazaki, H. Matsuoka, H. Mitarai, Y. Honkura","doi":"10.1109/EDPC.2011.6085539","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085539","url":null,"abstract":"The authors have successfully developed a low-cost anisotropic NdFeB magnet powder with high coercivity value of 18kOe without any Dy additives by diffusion processing of Nd-Cu-Al element to anisotropic magnet powder produced by the d-HDDR method. This enhancement mechanism is to isolate the magnetic couple between grain of Nd2Fe14B phase by creation of non-magnetic grain boundaries of Nd and Cu. By surface coating on this anisotropic magnet powder, the long-term aging loss behavior under air at 150deg.C has been improved by 6% after 1,000hr compared to current MAGFINE material without powder surface coating. By using this new anisotropic bonded magnet (New-MAGFINE), small automotive motors with excellent thermal stability and low cost characteristics have become possible.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132030848","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085534
M. Groninger, F. Horch, A. Kock, H. Pleteit, B. Ponick, D. Schmidt, F. Wostmann
The presented method for casting production of coils for electrical machines offers significant advantages over conventional production methods in terms of achievable performance, torque density, and the production costs of electrical machines. Below, the outline of the procedure is presented in accordance with electrical and constructive conditions. Based on initial casting experiments, the principle feasibility of the method is demonstrated.
{"title":"Casting production of coils for electrical machines","authors":"M. Groninger, F. Horch, A. Kock, H. Pleteit, B. Ponick, D. Schmidt, F. Wostmann","doi":"10.1109/EDPC.2011.6085534","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085534","url":null,"abstract":"The presented method for casting production of coils for electrical machines offers significant advantages over conventional production methods in terms of achievable performance, torque density, and the production costs of electrical machines. Below, the outline of the procedure is presented in accordance with electrical and constructive conditions. Based on initial casting experiments, the principle feasibility of the method is demonstrated.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131486659","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085571
K. Iyer, Xiaomin Lu, K. Mukherjee, N. Kar
The usage of niche copper-rotor induction motor (CRIM) in the Tesla Roadster electric vehicle has bolstered the technology of using copper-rotor induction motor for electrified transportation. Understanding the merits, demerits and state of art technology of induction motor and its drive in EV/HEV application, this research manuscript proposes an online stator and rotor resistance estimation scheme using particle swarm optimization (PSO) technique for efficient and accurate control of induction motors in the same application. Firstly, an insight is provided on the state or art CRIM technology in EV/HEV and the need for reliable online rotor and stator resistance estimation scheme. Secondly, a PSO based scheme for resistance estimation is developed through a mathematical model. The developed model is validated and tested on a 10hp CRIM thorough a computer programme. Thereafter, the calculated results obtained from numerical investigations are analyzed.
{"title":"Online stator and rotor resistance estimation scheme using swarm intelligence for induction motor drive in EV/HEV","authors":"K. Iyer, Xiaomin Lu, K. Mukherjee, N. Kar","doi":"10.1109/EDPC.2011.6085571","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085571","url":null,"abstract":"The usage of niche copper-rotor induction motor (CRIM) in the Tesla Roadster electric vehicle has bolstered the technology of using copper-rotor induction motor for electrified transportation. Understanding the merits, demerits and state of art technology of induction motor and its drive in EV/HEV application, this research manuscript proposes an online stator and rotor resistance estimation scheme using particle swarm optimization (PSO) technique for efficient and accurate control of induction motors in the same application. Firstly, an insight is provided on the state or art CRIM technology in EV/HEV and the need for reliable online rotor and stator resistance estimation scheme. Secondly, a PSO based scheme for resistance estimation is developed through a mathematical model. The developed model is validated and tested on a 10hp CRIM thorough a computer programme. Thereafter, the calculated results obtained from numerical investigations are analyzed.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133717558","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085557
A. Dietz, A. Groeger, C. Klingler
The Climate change, the growing shortage of fossil raw materials and the requirements for CO2 emission reduction forces the thrust to design energy-efficient powertrain topologies for power generation. The share of renewable energies to 2030 will be increased to 20% of the total energy demand in Europe. This includes not only wind energy, solar energy and biomass, but also the hydroelectric power. Not only in Europe in general but also in Bavaria in particular, the use of hydropower is to be further developed. The Bavarian state government has decided in a framework paper to maintain and enhance the use of hydropower. To achieve the energy improvement a permanentmagnet synchronous generator has to be developed especially for small hydropower. The use of permanent-magnet low-speed synchronous generators for small hydropower stations is to be made economically by new manufacturing methods even in small quantities.
{"title":"Efficiency improvement of small hydroelectric power stations with a permanent-magnet synchronous generator","authors":"A. Dietz, A. Groeger, C. Klingler","doi":"10.1109/EDPC.2011.6085557","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085557","url":null,"abstract":"The Climate change, the growing shortage of fossil raw materials and the requirements for CO2 emission reduction forces the thrust to design energy-efficient powertrain topologies for power generation. The share of renewable energies to 2030 will be increased to 20% of the total energy demand in Europe. This includes not only wind energy, solar energy and biomass, but also the hydroelectric power. Not only in Europe in general but also in Bavaria in particular, the use of hydropower is to be further developed. The Bavarian state government has decided in a framework paper to maintain and enhance the use of hydropower. To achieve the energy improvement a permanentmagnet synchronous generator has to be developed especially for small hydropower. The use of permanent-magnet low-speed synchronous generators for small hydropower stations is to be made economically by new manufacturing methods even in small quantities.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129610497","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 : 2011-11-21DOI: 10.1109/EDPC.2011.6085535
A. Gardocki
Polymer Bonded Magnets can be cost effectively produced by injection molding of polymers with magnetic fillers. Rare-Earth-fillers (RE) like NdFeB or SmCo in comparison with other permanent magnetic fillers have remarkably higher magnetic properties. Nevertheless they are very reactive and oxygen susceptible which leads to polymer degradation and filler oxidation during the processing. This paper deals with two different methods of resolution to improve the thermal and thermo-oxidative stability of rare earth filled polymers during processing: powder coating and processing under inert atmosphere.
{"title":"Investigation of the thermo-oxidative degradation of plastic Bonded Rare-Earth-Magnets during the injection molding process","authors":"A. Gardocki","doi":"10.1109/EDPC.2011.6085535","DOIUrl":"https://doi.org/10.1109/EDPC.2011.6085535","url":null,"abstract":"Polymer Bonded Magnets can be cost effectively produced by injection molding of polymers with magnetic fillers. Rare-Earth-fillers (RE) like NdFeB or SmCo in comparison with other permanent magnetic fillers have remarkably higher magnetic properties. Nevertheless they are very reactive and oxygen susceptible which leads to polymer degradation and filler oxidation during the processing. This paper deals with two different methods of resolution to improve the thermal and thermo-oxidative stability of rare earth filled polymers during processing: powder coating and processing under inert atmosphere.","PeriodicalId":333533,"journal":{"name":"2011 1st International Electric Drives Production Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131007695","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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