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Verifying Strand Transposition in Stator Windings via X-ray Computed Tomography derived Three-Dimensional Models 通过x射线计算机断层扫描导出的三维模型验证定子绕组中的链转位
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110906
J. Hoole, D. North, N. Simpson, P. Mellor
{"title":"Verifying Strand Transposition in Stator Windings via X-ray Computed Tomography derived Three-Dimensional Models","authors":"J. Hoole, D. North, N. Simpson, P. Mellor","doi":"10.1109/WEMDCD55819.2023.10110906","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110906","url":null,"abstract":"To minimise AC losses in power dense electrical machines, multistrand stator windings are routinely employed. However, the magnitude of AC losses can be highly sensitive to the strand transposition achieved in the as-manufactured winding, which can differ significantly from that assumed during design. This paper employs X-ray Computed Tomography (XCT) to verify the twisted strand transposition in a compressed aluminium coil, through the construction of 3D models for each of the strands within the coil. These models enable the strand transposition to be verified by qualitative and quantitative means, providing initial insight into the actual strand transposition achieved at the mid-point of the coil active length.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123498954","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
Advances in Frequency Response Techniques for Diagnosing Inter-Turn Faults in Salient Poles 凸极匝间故障诊断的频率响应技术研究进展
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110950
A. Mugarra, C. Platero
{"title":"Advances in Frequency Response Techniques for Diagnosing Inter-Turn Faults in Salient Poles","authors":"A. Mugarra, C. Platero","doi":"10.1109/WEMDCD55819.2023.10110950","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110950","url":null,"abstract":"Frequency Response Analysis (FRA) technique has been widely used for many years to diagnose winding transformers. However, more recently, there has been a concerted effort to apply this technique to other types of windings, including large salient poles. This paper presents two new FRA diagnostic techniques that have been specifically developed and proven to work effectively on large salient poles. These two techniques - the FRA ungrounded test and the fault diagram method - are combined to provide a novel approach for predictive and corrective diagnosis of inter-turn faults on large salient poles. The fault diagram is constructed using the ungrounded technique test results, and an analysis is carried out to identify new properties and enhance the diagnostic sensitivity. The laboratory tests are described in detail, and a comparison with on-site tests is provided to validate the effectiveness of the new techniques.This paper presents a new and innovative approach to diagnose inter-turn faults on large salient poles using FRA techniques. The FRA ungrounded test and the fault diagram method have been specifically developed for this purpose and provide a reliable and cost-effective diagnosis compared to traditional methods. The comprehensive laboratory tests and comparison with on-site tests demonstrate the effectiveness and practicality of the proposed techniques.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128510812","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
Statistical Assessment of Core Loss Measurement Techniques for Laminated Steel 层压钢铁芯损耗测量技术的统计评价
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110947
Leonardo Colombo, Sima Soltanipour, A. Tokat, A. Reinap, T. Thiringer, Francisco Marquéz Fernandez, J. Lindström, M. Alaküla
{"title":"Statistical Assessment of Core Loss Measurement Techniques for Laminated Steel","authors":"Leonardo Colombo, Sima Soltanipour, A. Tokat, A. Reinap, T. Thiringer, Francisco Marquéz Fernandez, J. Lindström, M. Alaküla","doi":"10.1109/WEMDCD55819.2023.10110947","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110947","url":null,"abstract":"In this paper, a comparative study of core losses in laminated steel samples by means of inferential statistics is presented. In particular, core loss measurements taken upon Epstein Frame, Single-Strip tester, and Ring Core specimens at several frequencies and induction levels are compared via Analysis of Variance and two-sample t-tests. The hypothesis of a statistically significant difference among the testing procedures is sustained and ring cores showed a lower magnetic performance when compared to Epstein Frame and Single-Strip tester.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124471793","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: 1
Lifetime estimation of corona-resistance wire for electrical machines operating under the partial discharge regime 部分放电状态下电机用电晕电阻线的寿命估计
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110897
Yatai Ji, P. Giangrande, Weiduo Zhao, V. Madonna, He Zhang, M. Galea
{"title":"Lifetime estimation of corona-resistance wire for electrical machines operating under the partial discharge regime","authors":"Yatai Ji, P. Giangrande, Weiduo Zhao, V. Madonna, He Zhang, M. Galea","doi":"10.1109/WEMDCD55819.2023.10110897","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110897","url":null,"abstract":"The trend towards higher onboard DC link voltage keeps increasing the partial discharge (PD) risk of electrical machines (EMs) for more electric aircraft (MEA) applications. Compared to the traditional Type I insulation, the corona-resistant (CR) wire with an additional inorganic layer boosts the lifetime of EMs under the PD regime and enables the design of EMs capable of safely operating at higher DC bus voltage. In this paper, the lifetime of CR wires operating under the PD regime is estimated. A starter/generator meant for more electric aircraft applications is selected as the study case, whose windings employ CR wire. The partial discharge inception voltage and electrical endurance are experimentally determined, and the lifetime model is built based on the collected results. Then, the starter/generator lifetime is estimated by considering both operating conditions and electric drive parameters.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128996887","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
Determination of an Asymmetrical Nine Phase Induction Machine Stator and Rotor Inductances Using Winding Function Approach 用绕组函数法确定非对称九相感应电机定子和转子电感
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110904
Taiwo Samuel Ajayi, G. Adam, D. Gaona, O. Anaya‐Lara
{"title":"Determination of an Asymmetrical Nine Phase Induction Machine Stator and Rotor Inductances Using Winding Function Approach","authors":"Taiwo Samuel Ajayi, G. Adam, D. Gaona, O. Anaya‐Lara","doi":"10.1109/WEMDCD55819.2023.10110904","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110904","url":null,"abstract":"It is an established fact that the simplest means of parameter extraction of an induction machine (e.g resistances and inductances) can be determined from no load (also known as synchronous) test and locked rotor (short circuit ) test. To find the resistance of an electric machine for single or multiple phase induction machine pose no problem, because it is a straight forward approach. However, in multiphase induction machine, with phase number greater than three, such approaches are not utterly sufficient to determine the inductances of the machine. An efficient and easily applicable, analytical approach for calculating the inductance of an asymmetrical multiple phase induction machine based on machine geometric information is presented. An algorithm translated to a Matlab script is developed to numerically evaluate the inductances of any multiphase induction machine using turn function and winding function approach is thoroughly established. Important conclusions regarding the processes to obtain the inductance are presented.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117062545","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
Comparison of Different Sampled PWM Strategies Applied to High-Speed Drives: A Predictive Time-Frequency Analysis 应用于高速驱动器的不同采样PWM策略的比较:一种预测时频分析
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110938
André De Andrade, L. Sadi-Haddad, R. Lateb, Joaquim Da Silva
{"title":"Comparison of Different Sampled PWM Strategies Applied to High-Speed Drives: A Predictive Time-Frequency Analysis","authors":"André De Andrade, L. Sadi-Haddad, R. Lateb, Joaquim Da Silva","doi":"10.1109/WEMDCD55819.2023.10110938","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110938","url":null,"abstract":"Using the Predictive Time-Frequency Analysis, several different pulse width modulation (PWM) techniques are studied with naturally and regular sampled PWM. This study observes a dynamic trajectory modelling an electric drive chain with a constant acceleration of the machine to its nominal speed. This global method allows to observe different phenomena at the same time (resonance, sub-harmonics, and harmonic distortion) specific to the trajectory. The Predictive Time-Frequency Analysis applied to Electric Drive Systems (PreTiFEDS) highlights the reasons why a naturally sampled PWM is not necessarily the most appropriate when it comes to using other PWM strategies for high-speed applications.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115744468","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: 1
On the Effect of Position Signal Error on the Performance of Single-Phase BLDC Drives 位置信号误差对单相无刷直流驱动器性能的影响
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110902
Nejat Saed, S. Asgari, A. Muetze
{"title":"On the Effect of Position Signal Error on the Performance of Single-Phase BLDC Drives","authors":"Nejat Saed, S. Asgari, A. Muetze","doi":"10.1109/WEMDCD55819.2023.10110902","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110902","url":null,"abstract":"Single-phase brushless DC machines are widely used for automotive auxiliary drives for pump and fan applications due to their low cost. These drives typically utilize a Hall-effect sensor for providing position information for motor control. However, due to inherent manufacturing imperfections, the position signal may be misaligned from the zero-crossing points of the back-EMF, which can affect the switching angles and overall performance of the machine. In this paper, experimental analyses are conducted on 56 single-phase BLDC fan drives to assess the error of the position signal and its impact on efficiency and structure-borne noise. The results indicate that although the position signal error slightly reduces the drive’s efficiency, it significantly increases vibration at the critical frequency.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129251973","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
A Tutorial on Double Pulse Test of Silicon and Silicon Carbide MOSFETs 硅和碳化硅mosfet双脉冲测试教程
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110895
M. Masoud, W. Issa, Wilfred Yates
{"title":"A Tutorial on Double Pulse Test of Silicon and Silicon Carbide MOSFETs","authors":"M. Masoud, W. Issa, Wilfred Yates","doi":"10.1109/WEMDCD55819.2023.10110895","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110895","url":null,"abstract":"In the power electronics and machine drives area, recent advancements in power electronics devices are paving a more sustainable future. The importance of improved power devices is beneficial within the growing industry, for example, Electric Vehicles. New power devices are continuously researched to combat drawbacks like loss and switching time. The electrical engineering curriculum should be supported by market-oriented knowledge and industry skills based on the market leaders' vision and recruiting plans. Our ultimate objective is to modify the power electronics modules' curriculum and reskill our graduates to satisfy the industry's needs. This paper introduces one of the topics in power electronics which was identified as an industry requirement: the Double Pulse Test (DPT), to be highlighted in future curriculums. This test will be used as a comparison tool for two power electronic devices: Silicon MOSFET (Si-MOSFET) and Silicon Carbide MOSFET (SiC-MOSFET).","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"9 5-6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114013647","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: 1
Analysis of Advanced Passive Heatsinks For Electrical Machines Enabled by Additive Manufacturing 采用增材制造技术的电机先进无源散热器分析
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110940
M. Sarap, A. Kallaste, P. S. Ghahfarokhi, T. Vaimann
{"title":"Analysis of Advanced Passive Heatsinks For Electrical Machines Enabled by Additive Manufacturing","authors":"M. Sarap, A. Kallaste, P. S. Ghahfarokhi, T. Vaimann","doi":"10.1109/WEMDCD55819.2023.10110940","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110940","url":null,"abstract":"This paper presents numerical models of several different natural convection based heatsink designs for an additively manufactured switched reluctance machine. The proposed heatsink designs incorporate geometries that have improved thermal performance but are difficult to produce with conventional methods, making them ideal options for additive manufacturing. The heatsinks are compared to a traditional longitudinal plate fin heatsink model with a heat transfer coefficient of 0.159 W/K. The highest performing proposed heatsink model achieves a heat transfer coefficient of 0.184 W/K, showing that additively manufactured passive heatsinks can provide significantly improved cooling for totally enclosed non-ventilated machines.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121272797","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
High-speed IPM Motors with Rotor Sleeve: Structural Design and Performance Evaluation 带转子套筒的高速IPM电机:结构设计与性能评价
2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) Pub Date : 2023-04-13 DOI: 10.1109/WEMDCD55819.2023.10110939
Josef Binder, Mario Silvagni, S. Ferrari, B. Deusinger, A. Tonoli, G. Pellegrino
{"title":"High-speed IPM Motors with Rotor Sleeve: Structural Design and Performance Evaluation","authors":"Josef Binder, Mario Silvagni, S. Ferrari, B. Deusinger, A. Tonoli, G. Pellegrino","doi":"10.1109/WEMDCD55819.2023.10110939","DOIUrl":"https://doi.org/10.1109/WEMDCD55819.2023.10110939","url":null,"abstract":"This paper deals with the structural design of sleeves for high-speed interior permanent magnet (IPM) synchronous machines. Wrapped IPM (WIPM) motors are a new player in the field of high-speed e-machines for traction, where a retaining sleeve is used to hold the magnetic poles in place against centrifugal forces, replacing the role of conventional iron bridges. The wrapping technique, originating from surface-mounted permanent magnet rotors, is believed to push speed limitations to new heights, as demanded by the increasing requirements of the automotive industry. By developing an equivalent rotor geometry of the WIPM rotor, an analytical model is formulated to evaluate the stress in the rotor and to provide a quick and intuitive tool for the sleeve design. The results are successfully validated by structural finite element analysis. Also, the output figures of a WIPM machine are compared to those of an equivalent IPM machine with iron bridges.","PeriodicalId":192269,"journal":{"name":"2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130686622","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
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