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

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Research on the Observation of the Rotor Flux Linkage Considering the Distribution of Rotor Current for Vector Control of Solid Rotor Induction Motors 固体转子感应电动机矢量控制中考虑转子电流分布的转子磁链观测研究
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646107
Dongkai Jiang, Z. Deng
{"title":"Research on the Observation of the Rotor Flux Linkage Considering the Distribution of Rotor Current for Vector Control of Solid Rotor Induction Motors","authors":"Dongkai Jiang, Z. Deng","doi":"10.1109/SCEMS52239.2021.9646107","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646107","url":null,"abstract":"The vector control technology is rarely applied to solid-rotor induction motors (SRIMs) because of the parameter variations caused by the distribution of rotor current, which prevent the accurate observation of the rotor flux linkage. In this paper, the dynamic model of the SRIM considering the distribution of rotor current is established and transformed into a form which can be seen as a combination of a normal squirrel-cage induction motor model and a disturbance. Based on the transformed model, a model reference adaptive system (MRAS) based approach to observe the equivalent rotor flux linkage precisely is proposed. Simulation results are provided to show the proposed approach works on the SRIM with better accuracy than the traditional flux linkage observer.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"85 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":"126917700","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
Analysis of Flux Leakage in Slot and Circulating Current Loss of PMSM with Concentrated Winding 集中绕组永磁同步电机槽漏磁及循环电流损耗分析
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646124
Jing Wang, Dong Liu, Qiang Li, Weiwei Geng, Lei Li, Zhuoran Zhang
{"title":"Analysis of Flux Leakage in Slot and Circulating Current Loss of PMSM with Concentrated Winding","authors":"Jing Wang, Dong Liu, Qiang Li, Weiwei Geng, Lei Li, Zhuoran Zhang","doi":"10.1109/SCEMS52239.2021.9646124","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646124","url":null,"abstract":"In this paper, the distribution of flux leakage in the slot of concentrated winding permanent magnet synchronous motor (PMSM) under different conditions is analyze. And the circulating current loss of PMSM is investigated, whose armature windings consist of parallel wires. First, for a 12-slot 10-pole motor with concentrated winding, the distribution of flux leakage in the slot is studied. Then, the impact of the loss caused by the circulating currents in the parallel armature wires is estimated by finite element analysis (FEA). Additionally, the circulating current loss is reduced by transposing and reducing the number of parallel conductors. Finally, the temperature rise experiment of a 12-slot/ 10-pole motor proves the effectiveness of the FEA.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"23 5 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":"126031252","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
Design of Synchronous Reluctance Motors with Asymmetrical Flux Barriers for Torque Ripple Reduction 具有非对称磁链屏障的同步磁阻电机的转矩脉动抑制设计
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646121
Xuan Li, Yawei Wang, R. Qu
{"title":"Design of Synchronous Reluctance Motors with Asymmetrical Flux Barriers for Torque Ripple Reduction","authors":"Xuan Li, Yawei Wang, R. Qu","doi":"10.1109/SCEMS52239.2021.9646121","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646121","url":null,"abstract":"Synchronous reluctance (REL) motors have attracted increasing attention for high performance applications. However, REL motors can be vulnerable to high toque ripple if they are not properly designed. In this paper, a solution for reducing torque ripple of REL motors is presented. The rotors with one flux-barrier per pole is taken into consideration and the flux-barrier end angles are carefully selected. Formulas of the torque are derived and the optimal flux-barrier angle set for minimizing the torque ripple is obtained using the proposed analytical model. In addition, the slot effects are considered in the analytical model. Finally, the influence of the flux-barriers end angles on torque ripple is examined by using Finite Element Analysis (FEA) which aims to verify the analytical results.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"423 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":"121888841","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
Improved PI Regulator with Integral Separation for Permanent Magnet Synchronous Motor Control 改进的积分分离PI调节器用于永磁同步电机控制
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646122
Zewen Huang, Yulong Liu
{"title":"Improved PI Regulator with Integral Separation for Permanent Magnet Synchronous Motor Control","authors":"Zewen Huang, Yulong Liu","doi":"10.1109/SCEMS52239.2021.9646122","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646122","url":null,"abstract":"In this paper, an improved PI regulator is proposed for the control of permanent magnet synchronous motors. Integral separation is used to improve the dynamic performance. Moreover, to realize integral self-regulation after torque change, a load observer is introduced. When a large load variation is observed, the load torque integral changes accordingly to suppress the speed fluctuation. So the controller is more reliable. The simulation results show that the PMSM control system has stronger anti-interference ability with the proposed PI regulator.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"19 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":"134412343","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 Simulation of a Rectifier for Bidirectional Electric Vehicle Chargers 双向电动汽车充电器整流器的设计与仿真
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646170
Omes J. Bajwa, Shujun Zhang
{"title":"Design and Simulation of a Rectifier for Bidirectional Electric Vehicle Chargers","authors":"Omes J. Bajwa, Shujun Zhang","doi":"10.1109/SCEMS52239.2021.9646170","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646170","url":null,"abstract":"To reduce greenhouse gas emissions, the automobile industry has continued its focus towards developing all electric vehicles (EV). This has caused new EV charger technology to emerge, such as bidirectional chargers with vehicle-to-grid and vehicle-to-home capabilities. This paper presents a 20 kW grid connected three-phase active front end (AFE) rectifier for bidirectional EV application. The control strategy is based on voltage oriented control (VOC), which is used to supply the EV with a constant DC voltage. Calculations in the control circuit are done in the synchronous ${dq}$-reference frame, and a phase locked loop (PEL) is used to extract the phase angle from the grid. Space vector modulation (SVM) with symmetrical zero states is used for pulse width modulation of the gating pulses. A LCL filter is selected for attenuating switching harmonics. The complete topology is simulated in Simulink and is tested with an increasing load during rectification, inversion and bidirectional operation.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"50 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":"132585119","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
Research on Minimum Switching Loss SVPWM Control of Dual Three-Phase PMSM 双三相永磁同步电机最小开关损耗SVPWM控制研究
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646112
Zhibo Chen, Xiang Luo
{"title":"Research on Minimum Switching Loss SVPWM Control of Dual Three-Phase PMSM","authors":"Zhibo Chen, Xiang Luo","doi":"10.1109/SCEMS52239.2021.9646112","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646112","url":null,"abstract":"Switching loss is an important factor in the dual three-phase PMSM drive system. In this paper, a method of minimum switching loss SVPWM (MSL-SVPWM) is proposed. The switching loss equation is presented, and a switching loss calculation model is used to calculate IGBT switching loss. To reduce the switching loss of the inverter, the minimum switching loss SVPWM can distribute the zero vector and active vector reasonably, and make the inverter has three-phase bridge arm or four-phase bridge arm clamping in each switching period. To show the performance of the proposed method, the simulation and experiments are conducted and results are presented.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"136 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":"131856195","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
Optimum Design of Single Phase Induction Motor with Copper Rotor Based on Improved Polyhedron Method 基于改进多面体法的铜转子单相感应电动机优化设计
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646106
C. Ye, Kailun Du, K. Liu, Yang Zhao, Jianping Zhang, Ling Qin
{"title":"Optimum Design of Single Phase Induction Motor with Copper Rotor Based on Improved Polyhedron Method","authors":"C. Ye, Kailun Du, K. Liu, Yang Zhao, Jianping Zhang, Ling Qin","doi":"10.1109/SCEMS52239.2021.9646106","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646106","url":null,"abstract":"Single-phase asynchronous motor needs only a single-phase power supply in operation, which has the advantages of convenient operation, simple structure, and low cost. Widely used in household small power electrical appliances. However, the efficiency of single-phase asynchronous motors is generally low. The single-phase induction motor rotor adopts a copper strip-rotor, which can not only improve the efficiency of the motor but also avoid the problem of copper casting. However, it will make the starting torque of the motor smaller and the starting current larger. To solve this problem, and improved polyhedron algorithm is proposed to optimize the motor. Firstly, the Taguchi algorithm is used to reduce the dimension of the motor. Then, taking the starting torque multiple and the starting current multiple as targets, the objective function is determined by the response surface method. Finally, the regular polyhedron algorithm with weight coefficient is used to optimize the motor and the final optimization parameters of the motor are obtained. The results show that the algorithm can improve the optimization accuracy and the motor performance is more ideal. Finally, through the prototype production, the optimization effect is verified, which has a certain engineering significance.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"30 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":"132131139","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
An Advanced Boost Chopper Converter-Based Direct Instantaneous Torque Control for SRMs 基于升压斩波变换器的srm直接瞬时转矩控制
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646104
Qingguo Sun, Hantong Xie
{"title":"An Advanced Boost Chopper Converter-Based Direct Instantaneous Torque Control for SRMs","authors":"Qingguo Sun, Hantong Xie","doi":"10.1109/SCEMS52239.2021.9646104","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646104","url":null,"abstract":"In this paper, an advanced boost chopper converter-based direct instantaneous torque control (DITC) is proposed for switched reluctance motor (SRM) drive with double-PI control strategy. Different from the traditional DITC method based on the hysteresis loop control, the fixed switching frequency control by the proposed PWM method is implemented instead of variable switch frequency control. Moreover, with the proposed converter, the dc-link voltage prediction and commutation torque distribution control can be implemented to effectively reduce the torque ripple during the commutation period and improve the efficiency. The effectiveness of the proposed scheme is verified by the simulation on a 150W, three-phase 12/8-pole SRM.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"1 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":"129318551","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 and Stress Analysis for a High-speed Permanent Magnet Motor with Solid Rotor 高速固体转子永磁电机的热应力分析
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646101
Zhenning Qi, Yue Zhang, He Zhang, Xiuhe Wang, Huijun Wang, Lei He
{"title":"Thermal and Stress Analysis for a High-speed Permanent Magnet Motor with Solid Rotor","authors":"Zhenning Qi, Yue Zhang, He Zhang, Xiuhe Wang, Huijun Wang, Lei He","doi":"10.1109/SCEMS52239.2021.9646101","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646101","url":null,"abstract":"This paper provides the thermal and rotor strength analyses of a high-speed permanent magnet motor (HSPMM) with solid type permanent magnet rotor. The computational fluid dynamics (CFD) is used to estimate the HSPMM's thermal performances. Several water cooling methods are compared to find the more effective cooling method for the motor. Both analytical and FEM methods are employed to investigate the rotor strength performances for the HSPMM. Moreover, several factors influencing the rotor strength performances are also further studied and researched.","PeriodicalId":327731,"journal":{"name":"2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS)","volume":"62 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":"121815521","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
On-line Suppression of Harmonic Currents Caused by Inverter Non-linearity for Sensorless Control of PMSMs 永磁同步电机无传感器控制中逆变器非线性谐波电流的在线抑制
2021 IEEE 4th Student Conference on Electric Machines and Systems (SCEMS) Pub Date : 2021-12-01 DOI: 10.1109/SCEMS52239.2021.9646150
Dongdong Chen, Jin Wang, F. Tian, Libing Zhou
{"title":"On-line Suppression of Harmonic Currents Caused by Inverter Non-linearity for Sensorless Control of PMSMs","authors":"Dongdong Chen, Jin Wang, F. Tian, Libing Zhou","doi":"10.1109/SCEMS52239.2021.9646150","DOIUrl":"https://doi.org/10.1109/SCEMS52239.2021.9646150","url":null,"abstract":"Inverter non-linearity could lead to voltage distortion, which will result in harmonics in the phase currents. This article proposes an algorithm suppressing the harmonic currents by using the gradient descent method. First, the effects of the inverter non-linearity are investigated. The analytical expressions of distorted voltages and harmonic currents are deduced. These harmonics will lead to position error and speed ripples in sensorless control system of permanent magnet synchronous machines (PMSMs). Then, the cross-product of fundamental and harmonic current vectors is calculated. The result is selected as the objective function. The fundamental current vector is constructed by phase-locked loop (PLL) and sin-wave generator. Furthermore, the harmonic currents are suppressed by minimizing the objective function. The process is realized by the gradient descent method. Finally, the effectiveness of the proposed algorithm is verified by simulation.","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":"125846533","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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