Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449600
Kan Yang, K. Akatsu, Kodai Okazaki, Y. Miyama
Permanent magnet synchronous machines (PMSMs) are widely used in a variety of applications. Dynamic eccentricity of the rotor is one of the obstacles in the manufacturing process. This obstacle causes an imbalanced electromagnetic force and causes unexpected vibrations. In this research, the effect of dynamic eccentricity on the temporal and spatial harmonic distribution of electromagnetic force and vibration are investigated. Moreover, compensation methods have been proposed to suppress the vibrations due to dynamic eccentricity by using multi-sector and multi-phase motor. The compensation current is obtained by optimization. The effectiveness of the proposed method is verified by finite element analysis (FEA).
{"title":"A Method to Suppress Vibration Due to Dynamic Eccentricity by Using Triple Three-phase Winding Motor","authors":"Kan Yang, K. Akatsu, Kodai Okazaki, Y. Miyama","doi":"10.1109/IEMDC47953.2021.9449600","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449600","url":null,"abstract":"Permanent magnet synchronous machines (PMSMs) are widely used in a variety of applications. Dynamic eccentricity of the rotor is one of the obstacles in the manufacturing process. This obstacle causes an imbalanced electromagnetic force and causes unexpected vibrations. In this research, the effect of dynamic eccentricity on the temporal and spatial harmonic distribution of electromagnetic force and vibration are investigated. Moreover, compensation methods have been proposed to suppress the vibrations due to dynamic eccentricity by using multi-sector and multi-phase motor. The compensation current is obtained by optimization. The effectiveness of the proposed method is verified by finite element analysis (FEA).","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129997749","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449580
Lei Xu, Z.Q. Zhu
In this paper, a novel SVPWM strategy for open-winding machine fed by common DC-bus dual two-level 3-phase inverters is proposed to reduce current ripples. In the proposed SVPWM strategy for open-winding, each of six sectors in the space vector plane is further divided into three sub-sectors, in which the optimal effective and zero voltage vector action sequences are found to be different. Consequently, different effective and zero voltage vector action sequences are employed in three sub-sectors. Compared with the conventional SVPWM for open-winding, the proposed SVPWM strategy produces similar current harmonics in low modulation index region, but generates much lower current harmonics in high modulation index region without increasing switching frequency, as confirmed by simulation and experiments. Moreover, a zero sequence control method is proposed to suppress zero sequence current and also verified by experiment results.
{"title":"A Novel SVPWM Strategy for Open-winding Machine with Low Current Ripples","authors":"Lei Xu, Z.Q. Zhu","doi":"10.1109/IEMDC47953.2021.9449580","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449580","url":null,"abstract":"In this paper, a novel SVPWM strategy for open-winding machine fed by common DC-bus dual two-level 3-phase inverters is proposed to reduce current ripples. In the proposed SVPWM strategy for open-winding, each of six sectors in the space vector plane is further divided into three sub-sectors, in which the optimal effective and zero voltage vector action sequences are found to be different. Consequently, different effective and zero voltage vector action sequences are employed in three sub-sectors. Compared with the conventional SVPWM for open-winding, the proposed SVPWM strategy produces similar current harmonics in low modulation index region, but generates much lower current harmonics in high modulation index region without increasing switching frequency, as confirmed by simulation and experiments. Moreover, a zero sequence control method is proposed to suppress zero sequence current and also verified by experiment results.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134634785","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449585
Md Sariful Islam, S. Agoro, Ritvik Chattopadhyay, I. Husain
A compact, heavy rare earth free permanent magnet synchronous machine with a volumetric power density of 50kW/liter is designed for electric traction applications. This is facilitated by innovations in the stator winding topology, magnet arrangement, and cooling technique. A 24-slot/10-pole dual three-phase asymmetric winding layout is adopted to improve power density, reduce harmonic losses, and improve fault tolerant capabilities. Furthermore, a novel segmented V-type magnet arrangement is proposed to address the demagnetization issues of the heavy rare earth free magnets under extreme temperatures and negative electromagnetic fields. An extensive finite element analysis has been conducted and results are presented to show the electromagnetic and demagnetization performance as well as the thermal capabilities and structural integrity of the proposed design.
{"title":"Heavy Rare Earth Free High Power Density Traction Machine for Electric Vehicles","authors":"Md Sariful Islam, S. Agoro, Ritvik Chattopadhyay, I. Husain","doi":"10.1109/IEMDC47953.2021.9449585","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449585","url":null,"abstract":"A compact, heavy rare earth free permanent magnet synchronous machine with a volumetric power density of 50kW/liter is designed for electric traction applications. This is facilitated by innovations in the stator winding topology, magnet arrangement, and cooling technique. A 24-slot/10-pole dual three-phase asymmetric winding layout is adopted to improve power density, reduce harmonic losses, and improve fault tolerant capabilities. Furthermore, a novel segmented V-type magnet arrangement is proposed to address the demagnetization issues of the heavy rare earth free magnets under extreme temperatures and negative electromagnetic fields. An extensive finite element analysis has been conducted and results are presented to show the electromagnetic and demagnetization performance as well as the thermal capabilities and structural integrity of the proposed design.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133552435","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449562
A. Perera, R. Nilsen
This paper aims to combine the state-of-the-art parameter-adaptation and state-estimation techniques to realize an adaptive and sensorless interior permanent magnet synchronous machine (IPMSM) drive that offers robust performance across the full speed range even in the presence of temperature-variations. Recursive prediction error based Online Parameter Estimator (OPE) accompanied by a gain-scheduler adapts temperature-sensitive motor parameters, i.e. the stator resistance (Rs) and permanent magnet flux linkage ($Psi_{mathrm{m}}$) in the lower and higher speed regions respectively. The Active Flux Observer (AFO) and the Pulsating sqUare-wave Voltage Injection (PUVI) based saliency tracking method are adopted to estimate the rotor position in the higher and lower speed regions respectively. The OPE augments the performance of the AFO across a large part of the speed-range and the use of PUVI-based technique eliminates the potential precision-compromise of the estimated position due to the gain-scheduler in the low-speed region. Zynq System on Chip (SoC) based Embedded Real-Time Simulator (ERTS) is used to demonstrate the concepts, in which the drive control and estimation algorithms are programmed in its processor system and the drive hardware is modeled in its Field-Programmable Gate Array (FPGA).
{"title":"Full Speed Range Sensorless IPMSM Drive Enhanced with Online Parameter Identification","authors":"A. Perera, R. Nilsen","doi":"10.1109/IEMDC47953.2021.9449562","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449562","url":null,"abstract":"This paper aims to combine the state-of-the-art parameter-adaptation and state-estimation techniques to realize an adaptive and sensorless interior permanent magnet synchronous machine (IPMSM) drive that offers robust performance across the full speed range even in the presence of temperature-variations. Recursive prediction error based Online Parameter Estimator (OPE) accompanied by a gain-scheduler adapts temperature-sensitive motor parameters, i.e. the stator resistance (Rs) and permanent magnet flux linkage ($Psi_{mathrm{m}}$) in the lower and higher speed regions respectively. The Active Flux Observer (AFO) and the Pulsating sqUare-wave Voltage Injection (PUVI) based saliency tracking method are adopted to estimate the rotor position in the higher and lower speed regions respectively. The OPE augments the performance of the AFO across a large part of the speed-range and the use of PUVI-based technique eliminates the potential precision-compromise of the estimated position due to the gain-scheduler in the low-speed region. Zynq System on Chip (SoC) based Embedded Real-Time Simulator (ERTS) is used to demonstrate the concepts, in which the drive control and estimation algorithms are programmed in its processor system and the drive hardware is modeled in its Field-Programmable Gate Array (FPGA).","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128316463","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449603
J. Nonneman, Brent van der Sijpe, I. T’Jollyn, Steven Vanhee, J. Druant, M. De Paepe
A thermal analysis of an interior permanent magnet machine using a lumped parameter model is presented, with the objective to evaluate several rotor cooling techniques for electric vehicle applications which are needed in order to achieve higher power densities. Two of the selected rotor cooling techniques involve cooling of the shaft by pumping a liquid through a channel in the shaft and by implementing a rotating heat pipe. The third selected rotor cooling technique is accomplished by pointing liquid jets towards the hub of the rotor. The lumped parameter model and implementation of these newly modeled cooling techniques are described. From the temperature distributions of the electrical machine resulting from water jacket cooling in combination with the different rotor cooling techniques, it was revealed that when the rotor of an electrical motor contains a hub, shaft cooling methods are ineffective. Rotor jet cooling however resulted in the most effective cooling approach to minimize permanent magnet temperatures.
{"title":"Evaluation of High Performance Rotor Cooling Techniques for Permanent Magnet Electric Motors","authors":"J. Nonneman, Brent van der Sijpe, I. T’Jollyn, Steven Vanhee, J. Druant, M. De Paepe","doi":"10.1109/IEMDC47953.2021.9449603","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449603","url":null,"abstract":"A thermal analysis of an interior permanent magnet machine using a lumped parameter model is presented, with the objective to evaluate several rotor cooling techniques for electric vehicle applications which are needed in order to achieve higher power densities. Two of the selected rotor cooling techniques involve cooling of the shaft by pumping a liquid through a channel in the shaft and by implementing a rotating heat pipe. The third selected rotor cooling technique is accomplished by pointing liquid jets towards the hub of the rotor. The lumped parameter model and implementation of these newly modeled cooling techniques are described. From the temperature distributions of the electrical machine resulting from water jacket cooling in combination with the different rotor cooling techniques, it was revealed that when the rotor of an electrical motor contains a hub, shaft cooling methods are ineffective. Rotor jet cooling however resulted in the most effective cooling approach to minimize permanent magnet temperatures.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"37 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133203590","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449597
R. Jastrzebski, Daria Kepsu, A. Putkonen, Iikka Martikainen, A. Zhuravlev, Sadjad Madanzadeh
Presently, most heat demands globally are covered by burning fossil fuels, e.g., by using coal, which results in harmful emissions. For example, when burning oil, carbon dioxide emissions alone are estimated to be 3.2 times the mass of fuel (oil) burned. Other harmful emissions include those associated with increased health risks, e.g., sulfur dioxide and indirect climate gases. With new regulations following political initiatives such as a decarbonized Europe, the use of fossils is under pressure. Heat pumps provide clean heat production with efficient use of electricity. With the deployment of high-speed kinetic compressors, more applications with heat pumps become viable. The high-speed kinetic turbo compressors have a higher efficiency and better reliability than reciprocating oil-lubricated compressors. Oil-free compressor technology enables the use of the most efficient and ultra-low global warming potential working fluids, which in most cases are sensitive or unsuitable for bearing lubricants. In this work, the technology alternatives for high-speed oil-free compressors are analyzed. Based on the working conditions of 500 kW residential heat pump modules, a case study comparison between bearingless technology and a surface permanent magnet motor having a rotor with two active magnetic bearings is presented.
{"title":"Competitive technology analysis of a double stage kinetic compressor for 0.5 MW heat pumps for industrial and residential heating","authors":"R. Jastrzebski, Daria Kepsu, A. Putkonen, Iikka Martikainen, A. Zhuravlev, Sadjad Madanzadeh","doi":"10.1109/IEMDC47953.2021.9449597","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449597","url":null,"abstract":"Presently, most heat demands globally are covered by burning fossil fuels, e.g., by using coal, which results in harmful emissions. For example, when burning oil, carbon dioxide emissions alone are estimated to be 3.2 times the mass of fuel (oil) burned. Other harmful emissions include those associated with increased health risks, e.g., sulfur dioxide and indirect climate gases. With new regulations following political initiatives such as a decarbonized Europe, the use of fossils is under pressure. Heat pumps provide clean heat production with efficient use of electricity. With the deployment of high-speed kinetic compressors, more applications with heat pumps become viable. The high-speed kinetic turbo compressors have a higher efficiency and better reliability than reciprocating oil-lubricated compressors. Oil-free compressor technology enables the use of the most efficient and ultra-low global warming potential working fluids, which in most cases are sensitive or unsuitable for bearing lubricants. In this work, the technology alternatives for high-speed oil-free compressors are analyzed. Based on the working conditions of 500 kW residential heat pump modules, a case study comparison between bearingless technology and a surface permanent magnet motor having a rotor with two active magnetic bearings is presented.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121913245","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449605
S. Xue, M. Michon, Mircea Popescu, G. Volpe
This paper investigates the influence of number of layers and conductor size of hairpin windings of electric motors for electric vehicle applications. Firstly, the hairpin winding technology for electric motors is reviewed and key design rules are introduced. Based on these design rules, a traction motor with hairpin winding technology is modelled in a finite element analysis (FEA) software. The influence of the hairpin winding layers on the DC and the AC copper losses is investigated, based on the results obtained considering different operating points and drive cycles. The results indicate that using a higher number of winding layers does not always lead to higher efficiency. The trade-off between DC and AC losses under different operating points and drive cycles must be considered when designing for the optimal number of winding layers. Furthermore, using a larger conductor and higher fill factor for hairpin winding not necessarily lead to higher efficiency. In this study, the optimal conductor size for electric motors with hairpin windings is identified by carrying out optimizations considering drive cycle efficiency.
{"title":"Optimisation of Hairpin Winding in Electric Traction Motor Applications","authors":"S. Xue, M. Michon, Mircea Popescu, G. Volpe","doi":"10.1109/IEMDC47953.2021.9449605","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449605","url":null,"abstract":"This paper investigates the influence of number of layers and conductor size of hairpin windings of electric motors for electric vehicle applications. Firstly, the hairpin winding technology for electric motors is reviewed and key design rules are introduced. Based on these design rules, a traction motor with hairpin winding technology is modelled in a finite element analysis (FEA) software. The influence of the hairpin winding layers on the DC and the AC copper losses is investigated, based on the results obtained considering different operating points and drive cycles. The results indicate that using a higher number of winding layers does not always lead to higher efficiency. The trade-off between DC and AC losses under different operating points and drive cycles must be considered when designing for the optimal number of winding layers. Furthermore, using a larger conductor and higher fill factor for hairpin winding not necessarily lead to higher efficiency. In this study, the optimal conductor size for electric motors with hairpin windings is identified by carrying out optimizations considering drive cycle efficiency.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122180820","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449523
Xuliang Yao, Feiyang Zhang, Jingfang Wang, Shengqi Huang, Yujian Wang, He Ma
As for the tradition predictive torque control (T-PTC) algorithm in PMSM drive system, the time-varying electromagnetic parameters in the actual system, especially the inductance mismatch, cause a serious degradation in the control quality. To suppress the disturbance to the control system caused by inductance mismatch effectively, this paper proposes an improved robust predictive torque control (IR-PTC) algorithm without using the inductance parameter of the motor. In the proposed algorithm, the previous sampling information is selected to estimate the actual parameter, and the prediction model is established based on the time-derivatives (slopes) of torque and flux, which to improve the steady-state control performance under inductance mismatch. The feasibility and effectiveness of the proposed algorithm are verified by simulation and experimental results.
{"title":"Improved Predictive Torque control of PMSM Considering Inductance Parameter Mismatch","authors":"Xuliang Yao, Feiyang Zhang, Jingfang Wang, Shengqi Huang, Yujian Wang, He Ma","doi":"10.1109/IEMDC47953.2021.9449523","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449523","url":null,"abstract":"As for the tradition predictive torque control (T-PTC) algorithm in PMSM drive system, the time-varying electromagnetic parameters in the actual system, especially the inductance mismatch, cause a serious degradation in the control quality. To suppress the disturbance to the control system caused by inductance mismatch effectively, this paper proposes an improved robust predictive torque control (IR-PTC) algorithm without using the inductance parameter of the motor. In the proposed algorithm, the previous sampling information is selected to estimate the actual parameter, and the prediction model is established based on the time-derivatives (slopes) of torque and flux, which to improve the steady-state control performance under inductance mismatch. The feasibility and effectiveness of the proposed algorithm are verified by simulation and experimental results.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"327 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122029347","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449555
Matías Jiménez, J. Tapia, P. Lindh, L. Aarniovuori, A. Anttila, J. Pyrhönen
A modern and widely used tool for thermal analysis in the electric motor design is computational fluid dynamics CFD which is a robust tool for these studies but is computationally expensive. Therefore, two alternative approaches are studied in this work, a lumped parameter thermal network and a thermal model based on the finite element method (FEM). First, an electromagnetic analysis is carried out since these results are the input values for the thermal models. Then, the thermal network is presented, and the FEM procedure is explained. The results indicate a good accuracy from the two models as they are compared to experimental temperature measurements.
{"title":"Alternative Procedures for Thermal Design on Electric Machine","authors":"Matías Jiménez, J. Tapia, P. Lindh, L. Aarniovuori, A. Anttila, J. Pyrhönen","doi":"10.1109/IEMDC47953.2021.9449555","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449555","url":null,"abstract":"A modern and widely used tool for thermal analysis in the electric motor design is computational fluid dynamics CFD which is a robust tool for these studies but is computationally expensive. Therefore, two alternative approaches are studied in this work, a lumped parameter thermal network and a thermal model based on the finite element method (FEM). First, an electromagnetic analysis is carried out since these results are the input values for the thermal models. Then, the thermal network is presented, and the FEM procedure is explained. The results indicate a good accuracy from the two models as they are compared to experimental temperature measurements.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130093849","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}
Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449577
Taohid Latif, I. Husain
Pole changing motors can be very useful for traction applications, which require high torque at low speeds and an extended speed range of operation. The dual pole operation can be used to extract high torque during starting with a high pole configuration and an increased constant power region with a lower pole operation. Although pole changing motors have been studied in the past, there is essentially no research related to how a motor can be optimized for improved performance in terms of the overall torque-speed characteristics of operation. In this paper, we discuss the design and analysis of a 4-pole/2-pole induction motor using the Finite Element Analysis and analytical computation tools in Motor-CAD software. An induction motor is designed and optimized for improved performance for the entire range of operation. Torque and power characteristics of the pole changing motor are shown to have enhanced performance in the constant power region in comparison to the baseline motor.
{"title":"Design and analysis of an induction motor for an enhanced constant power region with electronic pole changing","authors":"Taohid Latif, I. Husain","doi":"10.1109/IEMDC47953.2021.9449577","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449577","url":null,"abstract":"Pole changing motors can be very useful for traction applications, which require high torque at low speeds and an extended speed range of operation. The dual pole operation can be used to extract high torque during starting with a high pole configuration and an increased constant power region with a lower pole operation. Although pole changing motors have been studied in the past, there is essentially no research related to how a motor can be optimized for improved performance in terms of the overall torque-speed characteristics of operation. In this paper, we discuss the design and analysis of a 4-pole/2-pole induction motor using the Finite Element Analysis and analytical computation tools in Motor-CAD software. An induction motor is designed and optimized for improved performance for the entire range of operation. Torque and power characteristics of the pole changing motor are shown to have enhanced performance in the constant power region in comparison to the baseline motor.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127287670","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}
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