CES Transactions on Electrical Machines and Systems最新文献_第7页

Design and Optimization of Interior Permanent Magnet (IPM) Motor for Electric Vehicle Applications 电动汽车用内部永磁电机的设计与优化

CES Transactions on Electrical Machines and Systems Pub Date : 2023-06-06 DOI: 10.30941/CESTEMS.2023.00021

Lavanya Balasubramanian;Nurul Azim Bhuiyan;Asad Javied;Ashraf A. Fahmy;Fawzi Belblidia;Johann Sienz

引用次数: 1

Winding Function Theory Based Thrust Calculation on Nested-loop Secondary Linear Machine Adapted to Linear Metro 基于缠绕函数理论的适用于直线地铁的嵌套二次直线电机推力计算

CES Transactions on Electrical Machines and Systems Pub Date : 2023-06-01 DOI: 10.30941/CESTEMS.2023.00042

Yaping Zhang;Jian Ge;Wei Xu;Hao Tang;Yang Gao;Xiaoliang Chen;Shihu Su;Zhen Bao

引用次数: 0

Content 内容

CES Transactions on Electrical Machines and Systems Pub Date : 2023-06-01

引用次数: 0

Analysis of an Axial-Flux Slotted Limited-Angle Torque Motor with Quasi-Halbach Array for Torque Performance Improvement 改进准Halbach阵列轴向磁通槽限角转矩电机转矩性能的分析

CES Transactions on Electrical Machines and Systems Pub Date : 2023-04-21 DOI: 10.30941/CESTEMS.2023.00029

Mingjie Wang;Dawei Li;Ronghai Qu

{"title":"Analysis of an Axial-Flux Slotted Limited-Angle Torque Motor with Quasi-Halbach Array for Torque Performance Improvement","authors":"Mingjie Wang;Dawei Li;Ronghai Qu","doi":"10.30941/CESTEMS.2023.00029","DOIUrl":"https://doi.org/10.30941/CESTEMS.2023.00029","url":null,"abstract":"Better torque performance and higher reliability have long been the focus of research for slotted limited-angle torque motors (LATMs), which are primarily used to position first-stage valves in electrohydraulic servosystems. This paper presents a high reliability axial-flux slotted LATM with quasi-Halbach array for torque performance improvement including constant torque range (CTR) and output torque. Firstly, the structure with two sets of windings and the operation principle of the proposed slotted LATM is analyzed. Secondly, a brief design procedure is presented, the structure selections of open slot and double-stator single-rotor (DSSR) interior rotor with surface mounted quasi-Halbach permanent magnet (PM) array are illustrated, and the geometric parameters are optimized to obtain the optimal design of the proposed slotted LATM. Then, 3-D finite-element method (FEM) is employed to compare the proposed slotted LATM with the conventional surface mounted PM slotted LATM in terms of cogging torque, no-load back EMF, and output torque, and the results show that the proposed LATM with quasi-Halbach array has a 10% improvement in output torque and a 25% improvement in CTR. Meanwhile, the flux linkages and torque performance of the two sets of windings under various conditions verify good magnetic isolation. Finally, prototypes of two different rotor types are manufactured and a series of experiments are performed to validate the analysis.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873789/10272303/10106622.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68150005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of the Foucault Current and its Vibration Noise Reduction on Bracket Features for AMDT 傅科电流及其减振对AMDT支架特性的影响

CES Transactions on Electrical Machines and Systems Pub Date : 2023-04-21 DOI: 10.30941/CESTEMS.2023.00028

Kammeugue Noubissi Romaric;Daosheng Liu;Boxue Du

{"title":"Impact of the Foucault Current and its Vibration Noise Reduction on Bracket Features for AMDT","authors":"Kammeugue Noubissi Romaric;Daosheng Liu;Boxue Du","doi":"10.30941/CESTEMS.2023.00028","DOIUrl":"https://doi.org/10.30941/CESTEMS.2023.00028","url":null,"abstract":"This manuscript explores the influences of the Foucault current on bracket vibration. Noise measurements are obtained in conditions that the coils are enclosed by the bracket, and exposed to the air for confirming the impact of Foucault current on bracket vibration. The outcomes illustrate that the bracket increases the primary noise to 21 dB. Throughout investigational modal computation, ordinary frequencies of the coils stay afar from the exciting frequency of 100 Hz but the ordinary frequency 72.924 Hz of the bracket stands near to 100 Hz, which similarly explicates the upsurge of the noise level. To do the computations on bracket vibrations instigated by the Foucault current, a finite-element method (FEM) has been utilized for evaluating the eddy current density, electromagnetic forces (EMF), coupled with bracket response in frequency domain. The calculations displayed a proper approval by mean of theoretic investigations, and the simulations analyzed effectively the bracket vibration produced by Eddy current, and the electromagnetic force (EMF). Referring to the simulation, the primary vibration characteristics, and noise level, the method by applying weights (stress) on the top bracket of transformer is proposed to lessen the vibration amplitude, and noise level. To indorse the utility, and application of the suggested technique, the experiment results are obtained, analyzed, and compared with those of simulations, primary vibration characteristics, and noise level.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873789/10272303/10106621.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68150003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Rotor Magnetic Barrier Structure of Built-in Permanent Magnet Motor Based on Taguchi Method 基于田口法的内置永磁电机转子磁屏障结构设计

CES Transactions on Electrical Machines and Systems Pub Date : 2023-03-24 DOI: 10.30941/CESTEMS.2023.00018

Shengnan Wu;Xianwen Pang;Wenming Tong;Yingcong Yao

{"title":"Design of Rotor Magnetic Barrier Structure of Built-in Permanent Magnet Motor Based on Taguchi Method","authors":"Shengnan Wu;Xianwen Pang;Wenming Tong;Yingcong Yao","doi":"10.30941/CESTEMS.2023.00018","DOIUrl":"https://doi.org/10.30941/CESTEMS.2023.00018","url":null,"abstract":"In this paper, a 20kW vehicle built-in permanent magnet synchronous motor is taken as an example, and a magnetic barrier structure is added to the rotor of the motor to solve the uneven saturation problem of the rotor side magnetic bridge. This structure improves the air-gap flux density waveform of the motor by influencing the internal magnetic flux path of the motor rotor, thus improving the sine of the no-load back EMF waveform of the motor and reducing the torque ripple of the motor. At the same time, Taguchi method is used to optimize the structural parameters of the added magnetic barrier. In order to facilitate the analysis of its uneven saturation phenomenon and improve the optimization effect, a simple equivalent magnetic network (EMN) model considering the uneven saturation of rotor magnetic bridge is established in this paper, and the initial values of optimization factors are selected based on this model. Finally, the no-load back EMF waveform distortion rate, torque ripple and output torque of the optimized motor are compared and analyzed, and the influence of magnetic barrier structure parameters on the electromagnetic performance of the motor is also analyzed. The results show that the optimized motor can not change the output torque of the motor as much as possible on the basis of reducing the waveform distortion rate of no-load back EMF and torque ripple.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873789/10172142/10134524.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68147988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Topologies of High Torque Density Machine Based on Magnetic Field Modulation Principle 基于磁场调制原理的高转矩密度电机新拓扑

CES Transactions on Electrical Machines and Systems Pub Date : 2023-03-16 DOI: 10.30941/CESTEMS.2023.00026

Yan Yue;Shaofeng Jia;Deliang Liang

引用次数: 0

Design and Performance Analysis of Permanent Magnet Claw Pole Machine with Hybrid Cores 混合铁心永磁爪极电机的设计与性能分析

CES Transactions on Electrical Machines and Systems Pub Date : 2023-03-16 DOI: 10.30941/CESTEMS.2023.00027

Chengcheng Liu;Zheng Chao;Shaopeng Wang;Youhua Wang

{"title":"Design and Performance Analysis of Permanent Magnet Claw Pole Machine with Hybrid Cores","authors":"Chengcheng Liu;Zheng Chao;Shaopeng Wang;Youhua Wang","doi":"10.30941/CESTEMS.2023.00027","DOIUrl":"https://doi.org/10.30941/CESTEMS.2023.00027","url":null,"abstract":"Permanent magnet claw pole machine (PMCPM) is a special kind of transverse flux permanent magnet machine. Compared with other electrical machines, it has the advantages of high torque density and high efficiency for high speed operation. However, because of its complex irregular structure, the manufacturing process using silicon sheets is complicated. Soft magnetic composite material (SMC) is manufactured by powder metallurgy technology, which can produce various shapes of stator core structures, so it is easier to produce various irregular shapes of the stator core. However, the raw SMC material is relatively expensive, and the mechanical strength of SMC is weak. In this paper, a PMCPM with hybrid cores is proposed. With the adoption of hybrid silicon sheet - SMC cores and amorphous alloy - SMC cores, the torque ability of PMCPM can be improved greatly and it can have higher efficiency for more wide operation frequency. Meanwhile, its mechanical strength has been improved and it can be designed for high torque direct drive applications as it is a modular machine. Furthermore, three methods are proposed to reduce the additional eddy current loss which resulted from the employment of hybrid cores in PMCPM.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873789/10272303/10075353.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68150006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Magnetically Coupled Resonant Detection Method for Breakpoint of Four Mesh Grounding Grid 四网接地网断点磁耦合谐振检测方法研究

CES Transactions on Electrical Machines and Systems Pub Date : 2023-03-10 DOI: 10.30941/CESTEMS.2023.00019

Weihua Chen;Shuai Wang;Xiaoheng Yan;Zhiquan Ye

{"title":"Research on Magnetically Coupled Resonant Detection Method for Breakpoint of Four Mesh Grounding Grid","authors":"Weihua Chen;Shuai Wang;Xiaoheng Yan;Zhiquan Ye","doi":"10.30941/CESTEMS.2023.00019","DOIUrl":"https://doi.org/10.30941/CESTEMS.2023.00019","url":null,"abstract":"Magnetically coupled resonant technology is a novel method for solving the breakpoint locating of power grounding grid. But the method can only detect breakpoints of a single mesh grounding grid at present. In this paper, a magnetically coupled resonant detection method for four-hole grounding grid breakpoint is proposed. Firstly, the equivalent circuit model of the four mesh grounding grid with two types of breakpoints, namely edge branch and intermediate branch, is established. The input impedance and phase angle of the system are obtained by analyzing the equivalent capacitance and equivalent resistance in the model. Secondly, the magnetically coupled resonant physical process of grounding grid faults is solved via HFSS software. The magnetic field intensity and phase frequency characteristic curves of four mesh holes with different branches and positions of breakpoints and different corrosion degrees are studied, and an experimental system is built to verify the feasibility. The results show that under the condition of grounding grid buried depth of 0.5 m and input frequency of 1∼15MHz, and there is an inverse relationship between equivalent capacitance and distortion frequency, the phase angle is positively correlated with the degree of corrosion of grounding grid, and the error of signal distortion frequency can be positioned at 5%. This paper provides some ideas for the application of magnetic coupling grounding grid detection technology.","PeriodicalId":100229,"journal":{"name":"CES Transactions on Electrical Machines and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873789/10172142/10122807.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68148002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Overview of High-efficiency Synchronous Reluctance Machines 高效同步磁阻电机综述

CES Transactions on Electrical Machines and Systems Pub Date : 2023-03-01 DOI: 10.30941/CESTEMS.2023.00030

Xuan Li;Yawei Wang;Yuhang Cheng;Dawei Li;Ronghai Qu

引用次数: 1