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2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)最新文献

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Multi-parameter identification of permanent magnet synchronous motor based on improved grey wolf optimization algorithm 基于改进灰狼优化算法的永磁同步电机多参数辨识
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646085
Jianing Jiang, Zhu Zhang
{"title":"Multi-parameter identification of permanent magnet synchronous motor based on improved grey wolf optimization algorithm","authors":"Jianing Jiang, Zhu Zhang","doi":"10.1109/SCEMS52239.2021.9646085","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646085","url":null,"abstract":"Considering the deficiency of the parameter identification algorithm of permanent magnet synchronous motor(PMSM), such as low identification accuracy and difficulty in identifying multiple parameters at the same time, an improved hybrid grey wolf optimization algorithm (IHGWO) is proposed. Firstly, Cat mapping and reverse learning strategy are used to generate the initial population, which can ensure the diversity of population and improve the convergence. Secondly, an improved sine cosine algorithm (SCA) is used to update the position of the leading wolf, so as to balance the global search and local development ability of IHGWO. Finally, Levy flight strategy is applied to update the optimal predation position of grey wolf group. It can improve the convergence accuracy and the ability to avoid trapping in local optimum. The full rank discrete model of PMSM is established on the d-q frame and the fitness function for parameter identification is given. The corresponding fitness value is obtained by comparing the output value of actual model with that of identification model. The IHGWO algorithm is compared with GWO and other two variants. The simulation and experimental results show that the IHGWO algorithm has the best accuracy, convergence speed and stability for parameter identification of PMSM.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122338363","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: 3
High quality Open-circuit Fault Tolerant Control of a Bi-harmonic Seven-Phase Permanent Magnet Synchronous Machine 双谐波七相永磁同步电机的高质量开路容错控制
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646157
Y. Zhu, J. Gong, J. Huang, F. Tan, W. Tian, N. Nguyen, É. Semail
{"title":"High quality Open-circuit Fault Tolerant Control of a Bi-harmonic Seven-Phase Permanent Magnet Synchronous Machine","authors":"Y. Zhu, J. Gong, J. Huang, F. Tan, W. Tian, N. Nguyen, É. Semail","doi":"10.1109/SCEMS52239.2021.9646157","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646157","url":null,"abstract":"in this paper, an optimal open-circuit fault-tolerant control (FTC) strategy in stator nature reference is proposed for a bi-harmonic seven-phase permanent magnet synchronous machines (PMSM). For single phase open-circuited fault, the reference currents in stator natural coordinate system can be generated by using the principle of mirror symmetry. Not only the high quality of torque with low torque ripple is achieved, but also the stator copper consumption is minimized. This paper will give the detail derivation of the reference currents and verification of the results by simulation.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115756513","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
Influence of Virtual Pole on Electromagnetic Characteristics and Equivalent Pole Pitch of Modular-secondary PMSLM 虚极对模块化二次PMSLM电磁特性和等效极距的影响
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646131
Jing Li, X. Huang, Bo Zhou
{"title":"Influence of Virtual Pole on Electromagnetic Characteristics and Equivalent Pole Pitch of Modular-secondary PMSLM","authors":"Jing Li, X. Huang, Bo Zhou","doi":"10.1109/SCEMS52239.2021.9646131","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646131","url":null,"abstract":"The unit-secondary of the modular-secondary permanent magnet synchronous linear motor (PMSLM) forms a continuous magnetic circuit with its adjacent spacing, which has the effect of virtual pole. According to the relationship between the pole pitch of virtual poles ($tau_{mathrm{v}}$) and the pole pitch of unit-secondary ($tau_{mathrm{r}}$), the two kinds of combinations of modular-secondary PMLSM can be defined. $tau_{mathrm{v}}$ affects the electromagnetic characteristics, which is an important parameter to be resolved and optimized. The difference between $tau_{mathrm{v}}$ and $tau_{mathrm{r}}$ leads to an equivalent pole pitch ($tau_{mathrm{e}}$) for the whole motor. The solution method of $tau_{mathrm{e}}$ has influence on the average value and ripple of thrust and normal force. Finally, a modular-secondary PMLSM prototype conforming to the first kind of combination is developed and verified by experiments.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127304362","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
Comparation of Different Rotor Sleeves of Highspeed Permanent Magnet Synchronous Motors Based on Multi-physics 基于多物理场的高速永磁同步电动机转子套的比较
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646164
Lu Wang, Guanghui Du, J. Tong, Na Huang, Chengshuai Hu, Wei Xu
{"title":"Comparation of Different Rotor Sleeves of Highspeed Permanent Magnet Synchronous Motors Based on Multi-physics","authors":"Lu Wang, Guanghui Du, J. Tong, Na Huang, Chengshuai Hu, Wei Xu","doi":"10.1109/SCEMS52239.2021.9646164","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646164","url":null,"abstract":"For high-speed permanent magnet synchronous motors (PMSMs), since the permanent magnets (PM) cannot withstand the huge centrifugal force during high-speed rotation, alloy or carbon fiber (CF) sleeve is usually used to protect the PM. However, due to the different physical properties of CF and alloy, the sleeve will greatly affect the multi-physics performance of high-speed motors. Therefore, in order to obtain more reasonable sleeve parameters, this paper focuses on the comparative of different sleeve schemes based on multi-physics, including rotor eddy current loss, rotor stress, temperature.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116642565","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: 3
MPPT Control Strategy of Variable Speed Hydropower System Based on Improved Fuzzy Control 基于改进模糊控制的变速水电系统MPPT控制策略
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646103
Qiang Zhou, Derong Luo, Litao Dai, Bi Wu, Hongjun Luo
{"title":"MPPT Control Strategy of Variable Speed Hydropower System Based on Improved Fuzzy Control","authors":"Qiang Zhou, Derong Luo, Litao Dai, Bi Wu, Hongjun Luo","doi":"10.1109/SCEMS52239.2021.9646103","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646103","url":null,"abstract":"Variable speed constant frequency (VSCF) hydropower system tracks the maximum power of hydraulic turbine through variable speed operation to improve the power generation efficiency of hydraulic turbine. It has attracted extensive attention in the field of renewable energy. This paper presents a new fuzzy maximum power point tracking (MPPT) control strategy based on starting speed. Through the analysis of hydraulic turbine speed efficiency model, the starting speed fuzzy controller and fuzzy control MPPT are adopted in the tracking process, which improves the tracking speed and steady-state accuracy of VSCF system. The simulation to verify the effectiveness of the improved algorithm. Compared with the traditional perturb and observe method (P & O), the improved control strategy can track the maximum power of VSCF hydropower system faster when the water flow changes. The results show that it can reduce power oscillation and improve the power generation of the system.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121887288","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
Generalized Analysis of Armature Windings MMF Harmonics 电枢绕组毫米波谐波的广义分析
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646119
Ze-Zheng Wu, Jian-Xin Shen
{"title":"Generalized Analysis of Armature Windings MMF Harmonics","authors":"Ze-Zheng Wu, Jian-Xin Shen","doi":"10.1109/SCEMS52239.2021.9646119","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646119","url":null,"abstract":"Harmonics in magnetomotive force (MMF) composed by armature windings play an important role in reflecting the performance of an AC electric machine. With the emerging of various novel configurations of multi-layer fractional-slot and polyphase windings, whilst limited by the time-consuming calculation and lack of universality in finite element analysis (FEA), an analytical method to depict the MMF harmonics which applies to all kinds of feasible windings is in need. In this paper, a generalized MMF harmonic analysis approach, which is applicable to symmetric and asymmetric, fractional-slot and integer-slot windings, accounting for odd and even space or time harmonic orders, is proposed and expressed as closed form equations.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134040064","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
Comparison of Rotor Strength of Various Rotor Structures for Ultra-high-speed Permanent Magnet Synchronous Motor 超高速永磁同步电动机不同转子结构转子强度比较
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646110
Tao Pu, Guanghui Du, J. Tong, Na Huang, Niumei Li, Wei Xu
{"title":"Comparison of Rotor Strength of Various Rotor Structures for Ultra-high-speed Permanent Magnet Synchronous Motor","authors":"Tao Pu, Guanghui Du, J. Tong, Na Huang, Niumei Li, Wei Xu","doi":"10.1109/SCEMS52239.2021.9646110","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646110","url":null,"abstract":"The mechanical reliability of the rotor is the premise of the stable operation of high-speed motors, and for ultra-high-speed permanent magnet synchronous motors (PMSMs), sterner requirements are placed on the mechanical reliability of the rotor. In this paper, the rotor strength of four rotor structures of ultra-high-speed PMSMs are compared. Combining the rotor sleeve materials and the PM mechanical structures, the rotor stresses of the four rotor structures under different influencing factors are compared by 3D finite element method, and the influence of temperature, interference fit and sleeve thickness on the stresses of different rotor structures are summarized. Then, the stresses of the four rotor structures are analyzed under different operating states. Finally, based on the above analysis, some important conclusions are obtained.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133472173","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
A Novel Stator Resistance Online Identification method based on ADRC 一种新的基于自抗扰控制器的定子电阻在线辨识方法
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646154
Shuai Wang, Min-Song Lin
{"title":"A Novel Stator Resistance Online Identification method based on ADRC","authors":"Shuai Wang, Min-Song Lin","doi":"10.1109/SCEMS52239.2021.9646154","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646154","url":null,"abstract":"The strong coupling and nonlinear characteristic of PMSM make the traditional PID control cannot meet the demand of the precise control. Therefore, auto disturbance rejection control (ADRC) is proposed to deal with the nonlinearity, which is based on the PMSM mathematical model, and requires precise motor parameters. In this paper, a novel stator resistance online identification algorithm for PMSMs based on auto disturbance rejection control (ADRC) is proposed. By means of the characteristic of observing disturbance, the extended state observer (ESO) is used to identify the real-time stator resistance, in which the change of resistance can be taken as the disturbance. The simulation is accomplished based on Matlab/Simulink and the effectiveness is verified compared with other online identification methods.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127381070","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
A New System for Calibrating a Pulsed Field Magnetometer 一种新的脉冲场磁强计标定系统
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646089
Heng Hu, Jinqiao Chen, Shan Jiang, T. Peng
{"title":"A New System for Calibrating a Pulsed Field Magnetometer","authors":"Heng Hu, Jinqiao Chen, Shan Jiang, T. Peng","doi":"10.1109/SCEMS52239.2021.9646089","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646089","url":null,"abstract":"To obtain the accurate magnetic properties of the rare earth permanent magnet with high coercivity, a new system for calibrating a pulsed field magnetometer (PFM) is developed. A set of calibration methods is proposed to calibrate the field and magnetization of the PFM. The field is calibrated by using a Rogowski coil and a calibrated pick-up coil. A measurement system is designed and used to measure the magnetization. The signal of the measurement system is calibrated by using the pure nickel sample and the pure copper sample. The samples of iron, nickel, ferrite and NdFeB are measured, and the experimental results show the PFM calibrated by this system has good measurement performance.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"44 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129827108","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
Thermal Management of Open Air-cooled Induction Motor for Drilling 开式钻孔风冷式感应电动机的热管理
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646115
Ziyi Xu, Yongming Xu, Mengmeng Ai, Wenhui Liu, Yaodong Wang
{"title":"Thermal Management of Open Air-cooled Induction Motor for Drilling","authors":"Ziyi Xu, Yongming Xu, Mengmeng Ai, Wenhui Liu, Yaodong Wang","doi":"10.1109/SCEMS52239.2021.9646115","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646115","url":null,"abstract":"This paper deals with the thermal management of an open air-cooled induction motor for drilling. Firstly, the electromagnetic parameters and cooling structure of the motor are introduced. And a cooling improvement structure is proposed and described in detail. Secondly, the three-dimensional geometric model of the entire motor is established according to the basic geometric parameters and cooling arrangement. Then, the multi-physics field bidirectional coupling analysis is used to determine the distribution of fluid and temperature in the motor. The simulation results are discussed and analyzed in depth, and the effectiveness of the proposed structure is verified through simulation. Finally, an experiment is conducted to verify the accuracy of the simulation results.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123076052","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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