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2022 25th International Conference on Electrical Machines and Systems (ICEMS)最新文献

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Self-Optimizing Control of Commutation Angle for DSEM Based on Three-phase Nine-state Control 基于三相九态控制的dssem换相角自优化控制
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983261
Jingcheng Huang, Bo Zhou, L. Xiong, Minghui Zhang
{"title":"Self-Optimizing Control of Commutation Angle for DSEM Based on Three-phase Nine-state Control","authors":"Jingcheng Huang, Bo Zhou, L. Xiong, Minghui Zhang","doi":"10.1109/ICEMS56177.2022.9983261","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983261","url":null,"abstract":"The current closed loop of three-phase nine-state control is an effective method to suppress torque ripple of doubly salient electromagnetic motor. In this paper, the commutation process in “three-phase nine-state” conduction mode is analyzed in detail, and the influence of different commutation angles on torque ripple is compared. On this basis, a self-optimizing control of commutation angle for DSEM is proposed, in which the initial commutation angle is set first. Then, according to the feedback of each phase current, the angle is continuously adjusted by iterative control, so that at the end of commutation, the current of conduction phase just reaches the reference current value, and the optimal commutation angle is reached at this time to reduce torque ripple. Finally, the experiment was carried out based on 18/12-pole DSEM, and the experimental results verify the effectiveness of the method. With no requirement for system parameters, this method can obtain the commutation angle required to suppress the torque ripple under different working conditions online.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115664156","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
Optimization of the flow boiling heat transfer structure for power electronics 电力电子设备流动沸腾传热结构优化
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9982846
Li Zhi, Zhao Sheng, Yu Wang, Song Quan-Gang, Yao Yan-Fang
{"title":"Optimization of the flow boiling heat transfer structure for power electronics","authors":"Li Zhi, Zhao Sheng, Yu Wang, Song Quan-Gang, Yao Yan-Fang","doi":"10.1109/ICEMS56177.2022.9982846","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9982846","url":null,"abstract":"Self-circulating evaporative cooling technology can solve the bottleneck problem of high heat flux heat dissipation of the power electronic devices. The liquid box in the system topology is in direct contact with the heating device. The evaporative cooling medium flows through the box and boils on the internal surface. So, the inner surface structure is very important for the heat dissipation. This paper in view of the heat flux density of 140 kW/ m2 and core temperature below 70^${circ}$C heat demand, compares the enhanced array structures of pin-fins and ribs with different rib heights and rib spacing by simulation. As comprehensive consideration in thermal efficiency, flow resistance, processing, material consumption, the optimal structure for enhanced heat dissipation is determined. The correctness of the selection results is verified by experiments. The reliable design process for optimal selection of enhanced structure is given.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"112 31","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120826302","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 Study on Axial Type Servo Motor for Current Density and Torque Ripple Reduction through Magnet Shape 利用磁体形状减小轴向伺服电机电流密度和转矩脉动的研究
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9982837
Junho Kang, Hyunwoo Kim, D. Jung, Chang-Sung Jin, S. Won, Ju Lee
{"title":"A Study on Axial Type Servo Motor for Current Density and Torque Ripple Reduction through Magnet Shape","authors":"Junho Kang, Hyunwoo Kim, D. Jung, Chang-Sung Jin, S. Won, Ju Lee","doi":"10.1109/ICEMS56177.2022.9982837","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9982837","url":null,"abstract":"PMSM is used in various fields such as industry, military, and precision control like medical. Axial type motors driven through axial magnetic flux have high power density and geometrical advantages differentiated from radial type motors. However, the axial type motor has the disadvantage of having a large torque ripple. Therefore, the axial type motor may be disadvantageous in a field requiring high precision, such as a servo motor. This paper is about the improved design of the axial type servo motor. In general, since the current density is proportional to the heat loss, it is necessary to reduce it. Selecting a high magnetic load by increasing the motor diameter, the current density can be lowered. However, the torque ripple tends to increase cause to diameter. Therefore, to reduce torque ripple, a methods of giving a pole ratio to a permanent magnet and applying halbach structure are presented. And by comparing the output characteristic according to the two methods, the design was carried out through a structure with better performance.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121074808","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
Thermal Modeling and Analysis of Axial Flux Permanent Magnet Machine with PCB Stator 带有PCB定子的轴向磁通永磁电机的热建模与分析
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9982878
Xiao-yuan Wang, Chunxia Yin, T. Li
{"title":"Thermal Modeling and Analysis of Axial Flux Permanent Magnet Machine with PCB Stator","authors":"Xiao-yuan Wang, Chunxia Yin, T. Li","doi":"10.1109/ICEMS56177.2022.9982878","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9982878","url":null,"abstract":"It is necessary to consider temperature rise when an axial flux permanent magnet machine (AFPMM) is designed since the excessive rise in temperature damages the machine’s performance. An AFPMM with a coreless printed circuit board (PCB) stator is designed and studied in this paper. The studies mainly focus on the thermal modeling and analysis of windings for the incomplete heat dissipation conditions of the PCB stator inside the machine. Firstly, the three-dimensional (3D) electromagnetic field model of the AFPMM is established by the finite element method (FEM). Then the bidirectional coupled simulation between the electromagnetic field model and the thermal model is realized. Finally, the temperature rise of the PCB stator is reduced by increasing the linewidth of the effective conductors to optimize the design of the AFPMM. Measured performances of the manufactured prototype verify the validity of the proposed bidirectional coupled thermal model.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127105702","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 Five-Level Inverter Based On Reference Vector Decomposition 基于参考矢量分解的五电平逆变器
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983092
Guotao Shi, Yanlin Liu, Jingli Li
{"title":"A Five-Level Inverter Based On Reference Vector Decomposition","authors":"Guotao Shi, Yanlin Liu, Jingli Li","doi":"10.1109/ICEMS56177.2022.9983092","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983092","url":null,"abstract":"Compared with the three-level converter, five-level converter has the advantages of low harmonic content of output current, good waveform quality of voltage and current, and low switching loss. However, the space vector modulation technology of five-level converter has the problems of many vectors and complex control. To solve this problem, this paper proposes a five-level simplification algorithm based on reference vector translation. This algorithm makes full use of the mature space vector modulation technology of a two-level converter. First, the five-level space vector is simplified to three-level SVPWM modulation, and then the three-level SVPWM modulation is simplified to the two-level SVPWM modulation. And based on MATLAB/Simulink simulation platform and dSPACE hardware in the loop simulation platform, the five-level simplification algorithm is deeply studied. Simulation and experimental results verify the effectiveness of the strategy proposed in this paper.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127185337","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
Design and Analysis of High Torque Density Permanent Magnet Synchronous Motor Based on Heat Pipe 基于热管的高转矩密度永磁同步电机设计与分析
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9982948
F. Chai, Yongqi Cao, Y. Pei
{"title":"Design and Analysis of High Torque Density Permanent Magnet Synchronous Motor Based on Heat Pipe","authors":"F. Chai, Yongqi Cao, Y. Pei","doi":"10.1109/ICEMS56177.2022.9982948","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9982948","url":null,"abstract":"High torque density permanent magnet synchronous motors (PMSM) are widely used in aerospace and vehicles. Nevertheless, due to high torque density, high heat generation increases the temperature of the motor, which may damage the motor in severe cases. Therefore, the heat dissipation problem is important research topic of high torque density motor. In this paper, a high torque density PMSM is designed. The cooling form of PMSM that heat pipe inserted into the stator slot is first determined. Based on this, the electromagnetic design scheme of the motor is designed. In addition, the high heat dissipation capacity of the heat pipe is verified according to comparing the cooling effects of two methods: natural cooling and heat pipe cooling.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127459789","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
The Development of DC-Nano Grid with Wide-Range Wireless Power Transfer for EVs 电动汽车大范围无线输电直流纳米电网的研制
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983177
Worapong Pairindra, S. Khomfoi, N. Takorabet, P. Thounthong
{"title":"The Development of DC-Nano Grid with Wide-Range Wireless Power Transfer for EVs","authors":"Worapong Pairindra, S. Khomfoi, N. Takorabet, P. Thounthong","doi":"10.1109/ICEMS56177.2022.9983177","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983177","url":null,"abstract":"This research paper presents a wireless power supply for electronic or electrical devices such as LED taillights or headlight bulbs on the electric vehicle (EVs). The main objectives of using wireless power transfer (WPT) are cost savings and the prevention of fires caused by the insulation burning due to overheating in the conventional cable. According to commercial necessity, the primary goal of the research is to simplify the power converter and transmission coils. Therefore, a high-frequency half-bridge inverter connected with a resonant tank compensator is selected for this task. The power transfer rate is set at 24V, 24W via the high-frequency inverter with 4SV DC input voltage. Apparently, the wireless power at the point load can be controlled at the desired value by using both MATLAB/Simulink and hardware implementations with different ranges of evaluation.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124888301","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
Influence of Oil Film Structure on Thrust Bearing Temperature 油膜结构对推力轴承温度的影响
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9982812
Zhao Sheng, Hou Zhe, Xiang Chunde
{"title":"Influence of Oil Film Structure on Thrust Bearing Temperature","authors":"Zhao Sheng, Hou Zhe, Xiang Chunde","doi":"10.1109/ICEMS56177.2022.9982812","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9982812","url":null,"abstract":"The thrust bearing of the hydro-generator bears a large axial load, and a large amount of heat is generated when the oil film is rubbed. In order to reduce the temperature of the thrust bearing and improve the uniformity of the temperature distribution, it is an effective method to use the three-dimensional fluid field simulation analysis method to carry out fluid-solid coupling heat transfer research. In this paper, the actual operation of the thrust bearing model in the project is used as the analysis object, and the temperature characteristics of the thrust bearing under different oil film structure conditions are analyzed by CFD software. The simulation results are in good agreement with the actual measurement results, indicating that the simulation method can be used to guide the design and optimization of the cooling scheme of the thrust bearing model.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125900369","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
The Influence of Oriented Silicon Steel on Permanent Magnet Synchronous Motor 取向硅钢对永磁同步电机的影响
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983329
Ji Pang, Zhan Jin, Kehao Jin, Feihang Zhou, Yanjing Hu
{"title":"The Influence of Oriented Silicon Steel on Permanent Magnet Synchronous Motor","authors":"Ji Pang, Zhan Jin, Kehao Jin, Feihang Zhou, Yanjing Hu","doi":"10.1109/ICEMS56177.2022.9983329","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983329","url":null,"abstract":"Oriented silicon steel is employed as the stator to improve the electromagnetic performance of out-rotor fractional-slot permanent magnet synchronous motor. The easy magnetic direction is s radial, difficult magnetic direction is tangential. By the characteristics of high magnetic conductivity at the easy magnetic direction in oriented silicon steel, the magnetic field of motor teeth is improved. Based on the special structure of fractional-slot and short magnetic circuit, the negative influence caused by difficult magnetic direction in stator yoke is minimized. When the positive effect of the tooth is greater than the negative effect of the yoke, the overall performance of the motor increases, and then the power density of the permanent magnet motor can be increased. The models of oriented silicon steel and non-oriented silicon steel are established by finite element simulation software, then the above conclusions are verified by simulations.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126048964","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
DC bus regulation of modular converter by a cascaded controller 用级联控制器对模块化变换器进行直流母线调节
2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI: 10.1109/ICEMS56177.2022.9983097
Mohammad Afkar, Parham Karimi, R. Gavagsaz-Ghoachani, M. Phattanasak, S. Pierfederici
{"title":"DC bus regulation of modular converter by a cascaded controller","authors":"Mohammad Afkar, Parham Karimi, R. Gavagsaz-Ghoachani, M. Phattanasak, S. Pierfederici","doi":"10.1109/ICEMS56177.2022.9983097","DOIUrl":"https://doi.org/10.1109/ICEMS56177.2022.9983097","url":null,"abstract":"Ground connection is one of the important areas in the power circuit. Based on the previous studies, there are three scenarios for ground connection between two inputs and outputs. This article investigates the ground connection of the circuit with a modular converter and a cascade controller. The outer loop controller controls the DC bus voltage while the inner loop control ensures that the input currents track their references, and balances the capacitor voltages and calculates the duty cycles. The performance of the system is investigated using Simulation results.","PeriodicalId":373972,"journal":{"name":"2022 25th International Conference on Electrical Machines and Systems (ICEMS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125492323","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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