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Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)最新文献

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A step-sine motor controller for electric vehicle applications 用于电动汽车的步进正弦电机控制器
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965742
M. C. Patterson, M. Baxter
{"title":"A step-sine motor controller for electric vehicle applications","authors":"M. C. Patterson, M. Baxter","doi":"10.1109/EEIC.2001.965742","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965742","url":null,"abstract":"A proposal for a new motor controller that utilizes batteries in groups instead of the total in series. By creating a step-sine voltage waveform it may be possible to reduce the waste heat in the controller and provide more power to the load. This could provide a useful method of turning DC from a battery into AC for motors in electric vehicle applications.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123887131","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}
引用次数: 0
Material selection of permanent magnets, considering thermal properties correctly 永磁体材料的选择，正确考虑热性能
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965683
S. Trout
{"title":"Material selection of permanent magnets, considering thermal properties correctly","authors":"S. Trout","doi":"10.1109/EEIC.2001.965683","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965683","url":null,"abstract":"Permanent magnets are used in a wide variety of applications: sensors, motors, actuators, alternators, hard drives, and speakers. While ceramic magnets (hard ferrite) were the material of choice for the last three decades, neodymium iron boron magnets, bonded and sintered, have surpassed ceramic magnets as the benchmark material for new designs. Three factors are key to the preference for rare earth magnets: superior room temperature magnetic properties, declining material cost, and improved corrosion resistance. With a bewildering array of data available, designers occasionally associate the wrong magnetic property with an important design parameter, leading to disappointing performance. This is particularly true for thermal characteristics. We review the thermal properties of the common permanent magnet materials, with emphasis on neodymium iron boron, and relate the characteristics to material selection.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121192253","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}
引用次数: 27
Interrogation system for passive solid-state sensors embedded in composites 嵌入复合材料的无源固态传感器探测系统
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965751
K. A. Lavere, L. Thompson
{"title":"Interrogation system for passive solid-state sensors embedded in composites","authors":"K. A. Lavere, L. Thompson","doi":"10.1109/EEIC.2001.965751","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965751","url":null,"abstract":"Development of passive solid-state ferromagnetic sensors suitable for assessing damage accumulation in composite materials requires an accurate, reproducible detection technique. The solid state sensors gradually transform from a paramagnetic phase to a ferromagnetic phase as a function of applied strain. The irreversible and strain dependent formation of ferromagnetic material passively provides a magnetic signature useful in nondestructively assessing peak strain exposure. This peak strain signature can be used to identify and quantitatively estimate the degree or extent of accumulated composite material damage. Embedded sensors were continuous 254-/spl mu/m diameter wires positioned beneath the first or second surface ply along the longitudinal axes of tensile specimens. Single embedded wire sensor configurations were evaluated. This paper discusses the development and results obtained for a giant magneto-resistive (GMR) sensor detection system for measuring the ferromagnetic response of the sensor wires after strain-controlled tensile testing. Tensile testing was done at levels ranging from 0-4% total strain.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123406928","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}
引用次数: 0
Component performance advantages realized through thermoplastic encapsulation 通过热塑性封装实现组件性能优势
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965632
J. Hanrahan, G. Neal
{"title":"Component performance advantages realized through thermoplastic encapsulation","authors":"J. Hanrahan, G. Neal","doi":"10.1109/EEIC.2001.965632","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965632","url":null,"abstract":"Thermoplastic encapsulation of electrical and electromechanical devices continues to yield improvements in cost, performance, and environmental sealing. The use of an injection molding process enables traditional advantages of part consolidation and cost reduction via integration of mounting components, termination features, and total cycle times of 20 to 60 seconds. With the use of thermally conductive thermoplastics, advances are being realized in thermal dissipation, particulate emissions, the reduction of both structural and audible vibration, and electrical circuit encapsulation. This paper reviews these developments.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123427863","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}
引用次数: 4
Response of ramp test to delamination in stator groundwall insulation 斜坡试验对定子地壁绝缘分层的响应
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965646
W. McDermid, J. Bromley
{"title":"Response of ramp test to delamination in stator groundwall insulation","authors":"W. McDermid, J. Bromley","doi":"10.1109/EEIC.2001.965646","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965646","url":null,"abstract":"High direct voltage ramp tests incorporating a continuous record of current versus voltage are known to be a sensitive indicator of groundwall cracks and fissures. Such defects often result in an obvious avalanche in the leakage current. Recently a different current versus voltage pattern has been associated with internal delamination. This paper reviews the evidence of this condition using ramp tests and partial discharge measurements on stator coils that are known to be delaminated between the groundwall and the turns to a greater or lesser extent.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128556812","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}
引用次数: 9
Study of electroinsulation materials composed of mica paper and polymer film for application in HV rotating electrical machines 高压旋转电机用云母纸和聚合物薄膜电绝缘材料的研究
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965606
A. Andreyev, N. Vakser, V. Starovoitenkov, V. Pak, I. Kuimov, M. Lavrentieva
{"title":"Study of electroinsulation materials composed of mica paper and polymer film for application in HV rotating electrical machines","authors":"A. Andreyev, N. Vakser, V. Starovoitenkov, V. Pak, I. Kuimov, M. Lavrentieva","doi":"10.1109/EEIC.2001.965606","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965606","url":null,"abstract":"The results of studying materials based on mica paper and polyester film are presented. Short-term and long-term electrical strength of films and composites are determined. It is found out that addition of polymer film increases the endurance of the composite. The existence of correlation between the durability and PD characteristics was demonstrated.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128743739","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}
引用次数: 0
Commutator design and manufacturing techniques 换向器设计与制造技术
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965616
L. Pletcher
{"title":"Commutator design and manufacturing techniques","authors":"L. Pletcher","doi":"10.1109/EEIC.2001.965616","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965616","url":null,"abstract":"A commutator is an arrangement of insulated copper bars that are connected to coils of an electric motor to provide a reversal of current into the coils of the motor. Commutation is the reversing of current direction. The purpose of this paper is to provide basic information on the different styles of commutators and the various internal locking designs. There are barrel shaped commutators and flat face commutators. Barrel commutators are cylinder shaped with the copper bars parallel to the bore. There are three basic styles of barrel commutators-steel and mica, mica molded, and molded shell. The flat face commutator looks like a pie with copper bars shaped in pie sections perpendicular to the bore. We review these basic designs to better understand their differences. The manufacturing process is also outlined, along with comparative cost factors. This information is useful in deciding which commutator style to select for a particular application.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126115149","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}
引用次数: 0
Assessed condition trending system (ACTS) a tool for generator on-line diagnostics 评估状态趋势系统(ACTS)是发电机在线诊断的一种工具
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965719
M. Hoof, T. Laird
{"title":"Assessed condition trending system (ACTS) a tool for generator on-line diagnostics","authors":"M. Hoof, T. Laird","doi":"10.1109/EEIC.2001.965719","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965719","url":null,"abstract":"A powerful tool for unit diagnostic monitoring has been developed which provides a reliable assessment of stator winding insulation condition by using analysis results from on-line partial discharge (PD) measurements. The main features and advantages of this permanently installed continuous PD monitoring system that includes real time assessed condition trending and alarm initiation capability will be presented. The objective is to identify and evaluate condition changes of the stator winding insulation system and thus to improve condition-based and predictive maintenance strategies. This effectively reduces the overall total lifecycle cost of the unit. Examples are given where based on the assessment of on-line PD measurements on turbogenerators machines were shut down in order to avoid premature failure and to allow for corrective maintenance work to be performed.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128478724","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}
引用次数: 4
Design for manufacturing of multi-phase transformers 多相变压器的制造设计
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965623
M. Stack
{"title":"Design for manufacturing of multi-phase transformers","authors":"M. Stack","doi":"10.1109/EEIC.2001.965623","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965623","url":null,"abstract":"Accurate and detailed design of multi-phase power transformers for multi-pulse rectification loads must be performed to ensure that manufactured product meets specification requirements. This paper discusses issues directly relevant to power transformers rated to 500 kVA; however it conceptually bears relevance to all multi-phase transformers used for high power AC to DC conversion.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127824588","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}
引用次数: 0
Laboratory study of slot discharge characteristic PRPD patterns 槽状放电特征PRPD模式的实验室研究
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965756
M. Bélec, C. Hudon, C. Guddemi
{"title":"Laboratory study of slot discharge characteristic PRPD patterns","authors":"M. Bélec, C. Hudon, C. Guddemi","doi":"10.1109/EEIC.2001.965756","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965756","url":null,"abstract":"In order to reproduce typical slot discharge activity, a full height section of a stator core was assembled in the authors' laboratory. Six stator bars were installed in three of the 14 slots section. Three levels of side packing were used: tight, intermediate and loose. The radial wedging was constant with ripple springs compressed at 80%. The six bars were initially characterized without any defect of their semi-conductive coating. The bars were then removed, and defects were made by abrasion in specific areas of the coating. The bars were fitted back into the same slots, with the same tightness as before and discharge tests were performed once again. The presence of slot discharges was observed visually with an ultra-violet camera, before radial wedges were installed. Some features of the phase resolved partial discharge (PRPD) features associated with slot discharge activity were identified. For instance, some asymmetry was observed with regard to the ratio of positive and negative discharges.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124583899","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}
引用次数: 16
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