Pub Date : 2021-05-17DOI: 10.1109/IEMDC47953.2021.9449564
Dominik Grauvogl, Peter Stauder, B. Hopfensperger, D. Gerling
In this paper a multiphysics development method is used for designing a novel wound field synchronous machine of the future generation of high voltage traction drives. This method covers the domains of electromagnetics, the mechanical strength, thermal behavior and the magnetic noise. It is shown that the proposed novel asymmetric design with a circular flux barrier in combination with an asymmetric pole offset is fulfilling the requirements according to performance and torque ripple. A fatigue strength rotor mechanic concept is included. A hybrid cooling concept consisting of a water jacket cooled stator and air cooled rotor ensures the needed continuous power. Unacceptable noise levels are excluded by investigating the equivalent radiated power (ERP) level due to radial forces in the air gap. Finally, the multi-physical workflow resulted in a fully developed component with a high degree of maturity.
{"title":"Multiphysics Design of a Wound Field Synchronous Machine with Magnetic Asymmetry","authors":"Dominik Grauvogl, Peter Stauder, B. Hopfensperger, D. Gerling","doi":"10.1109/IEMDC47953.2021.9449564","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449564","url":null,"abstract":"In this paper a multiphysics development method is used for designing a novel wound field synchronous machine of the future generation of high voltage traction drives. This method covers the domains of electromagnetics, the mechanical strength, thermal behavior and the magnetic noise. It is shown that the proposed novel asymmetric design with a circular flux barrier in combination with an asymmetric pole offset is fulfilling the requirements according to performance and torque ripple. A fatigue strength rotor mechanic concept is included. A hybrid cooling concept consisting of a water jacket cooled stator and air cooled rotor ensures the needed continuous power. Unacceptable noise levels are excluded by investigating the equivalent radiated power (ERP) level due to radial forces in the air gap. Finally, the multi-physical workflow resulted in a fully developed component with a high degree of maturity.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"96 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":"132880792","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/IEMDC47953.2021.9449503
H. Won, Yang-Ki Hong, Minyeong Choi, Briana Bryant, Jonathan Platt, Seungdeog Choi
This paper investigates a three-layer hybrid permanent magnet assisted synchronous reluctance machine (H-PMASynRM) that exhibits the most cost-effective performance for electric vehicle applications. Two kinds of permanent magnet, ferrite and NdFeB, are interchangeably used to evaluate motor performance metrics such as the torque per cost, torque density, efficiency, peak power factor, maximum speed, and rate of irreversible demagnetization. The simulation results show that the H-PMASynRM having the first layer made of NdFeB, the second layer made of ferrite, and the third layer made of a combination of ferrite and NdFeB, can exhibit the same maximum torque of 220 Nm with $12 lower cost, 1-3% higher efficiency at speed above 8,000 rpm, 6.8% lower peak power factor, and only 17% lower torque density compared to the NdFeB-based V-type PMSM that is used in Toyota Prius 2010.
{"title":"Cost-Effectiveness Hybrid Permanent Magnet Assisted Synchronous Reluctance Machine for Electric Vehicle","authors":"H. Won, Yang-Ki Hong, Minyeong Choi, Briana Bryant, Jonathan Platt, Seungdeog Choi","doi":"10.1109/IEMDC47953.2021.9449503","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449503","url":null,"abstract":"This paper investigates a three-layer hybrid permanent magnet assisted synchronous reluctance machine (H-PMASynRM) that exhibits the most cost-effective performance for electric vehicle applications. Two kinds of permanent magnet, ferrite and NdFeB, are interchangeably used to evaluate motor performance metrics such as the torque per cost, torque density, efficiency, peak power factor, maximum speed, and rate of irreversible demagnetization. The simulation results show that the H-PMASynRM having the first layer made of NdFeB, the second layer made of ferrite, and the third layer made of a combination of ferrite and NdFeB, can exhibit the same maximum torque of 220 Nm with $12 lower cost, 1-3% higher efficiency at speed above 8,000 rpm, 6.8% lower peak power factor, and only 17% lower torque density compared to the NdFeB-based V-type PMSM that is used in Toyota Prius 2010.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"19 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":"134132471","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/IEMDC47953.2021.9449601
Xuliang Yao, Tongzhen Liu, Jingfang Wang, He Ma, Shengqi Huang
Model predictive current control has received a great deal of attention in the field of induction motor drives. However, the most methods select voltage vectors based on enumeration and cost function, so it greatly increases control system complexity. In order to reduce control complexity and further improve steady-state control performance, a predictive current duty cycle control based on the reference voltage (PCDCC-RV) is proposed in this paper. The applied voltage vector is determined based on the location of the synthesized reference voltage, so the complicated enumeration process is cancelled. In addition, the control duty cycle is calculated based on the principle of minimum error between the selected vector and reference voltage. Compared with the traditional method, the proposed method of voltage vector selection and duty cycle calculation are more convenient, and the better control performance is obtained. Finally, simulation results prove its effectiveness.
{"title":"Predictive Current Duty Cycle Control for Induction Motor Based on Reference Voltage","authors":"Xuliang Yao, Tongzhen Liu, Jingfang Wang, He Ma, Shengqi Huang","doi":"10.1109/IEMDC47953.2021.9449601","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449601","url":null,"abstract":"Model predictive current control has received a great deal of attention in the field of induction motor drives. However, the most methods select voltage vectors based on enumeration and cost function, so it greatly increases control system complexity. In order to reduce control complexity and further improve steady-state control performance, a predictive current duty cycle control based on the reference voltage (PCDCC-RV) is proposed in this paper. The applied voltage vector is determined based on the location of the synthesized reference voltage, so the complicated enumeration process is cancelled. In addition, the control duty cycle is calculated based on the principle of minimum error between the selected vector and reference voltage. Compared with the traditional method, the proposed method of voltage vector selection and duty cycle calculation are more convenient, and the better control performance is obtained. Finally, simulation results prove its effectiveness.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"28 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":"134453009","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/IEMDC47953.2021.9449515
Samith Sirimanna, P. Huynh, Anjana J. Samarakoon, Dongsu Lee, A. Banerjee, K. Haran
Many modern direct-drive wind generators at high power levels adopt permanent magnet synchronous generators (PMSGs). Typically, these PMSGs are coupled with fully rated active rectifiers to process and deliver power to the main grid. However, the limited-speed nature of a wind turbine creates an opportunity to reduce the amount of active rectification required, which in turn would reduce the cost of the drive and improve system reliability. This paper presents a design and optimization process of a direct-drive PMSG coupled to an integrated generator-rectifier system. In order to make the hybrid architecture possible, a multi-port generator is designed with multiple diode rectifiers and a single active rectifier. This paper describes a process for a 10 MW generator-drive optimization under the proposed architecture with two different implementation methods. These implementations are compared using optimal Pareto front from a system-level efficiency-weight perspective.
{"title":"Design and Optimization of an Integrated Generator-Rectifier System for Offshore Wind Turbines","authors":"Samith Sirimanna, P. Huynh, Anjana J. Samarakoon, Dongsu Lee, A. Banerjee, K. Haran","doi":"10.1109/IEMDC47953.2021.9449515","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449515","url":null,"abstract":"Many modern direct-drive wind generators at high power levels adopt permanent magnet synchronous generators (PMSGs). Typically, these PMSGs are coupled with fully rated active rectifiers to process and deliver power to the main grid. However, the limited-speed nature of a wind turbine creates an opportunity to reduce the amount of active rectification required, which in turn would reduce the cost of the drive and improve system reliability. This paper presents a design and optimization process of a direct-drive PMSG coupled to an integrated generator-rectifier system. In order to make the hybrid architecture possible, a multi-port generator is designed with multiple diode rectifiers and a single active rectifier. This paper describes a process for a 10 MW generator-drive optimization under the proposed architecture with two different implementation methods. These implementations are compared using optimal Pareto front from a system-level efficiency-weight perspective.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"54 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":"132517941","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/IEMDC47953.2021.9449542
A. Al-Qarni, A. El-Refaie
A high performance Interior Permanent Magnet (IPM) machine utilizing heavy rare-earth elements is considered the workhorse for many applications especially traction applications. Dysprosium (Dy) is one of the heavy rare-earth elements used in higher Permanent Magnet (PM) grades and its inclusion is critical to eliminate/minimize the risk of permanent demagnetization. On the other hand, Dy is one of the key elements that are subject to price volatility as well as sustainability concerns. Therefore, this paper aims to propose an IPM machine design for traction applications based on Nissan Leaf 2012 electric motor using a blend of magnet types that eliminate the use of Dy (can be thought of as hybrid magnets) to reduce the overall PM cost while maintaining comparable electromagnetic performance. Most importantly, this paper's objective is to provide a topology for the transportation sector using PM materials that addresses sustainability concerns. This paper will present the electromagnetic performance evaluation of the proposed design using Two-Dimensional Finite Element Analysis (2D-FEA). Comparison of key performance metrics including torque vs. current angle, efficiency map, risk of demagnetization, and comprehensive comparison to the baseline design will also be presented. In addition, rotor mechanical analysis as well as cost analysis are included.
{"title":"On Eliminating Heavy Rare-Earth PM Elements for High Power Density Traction Application Motors","authors":"A. Al-Qarni, A. El-Refaie","doi":"10.1109/IEMDC47953.2021.9449542","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449542","url":null,"abstract":"A high performance Interior Permanent Magnet (IPM) machine utilizing heavy rare-earth elements is considered the workhorse for many applications especially traction applications. Dysprosium (Dy) is one of the heavy rare-earth elements used in higher Permanent Magnet (PM) grades and its inclusion is critical to eliminate/minimize the risk of permanent demagnetization. On the other hand, Dy is one of the key elements that are subject to price volatility as well as sustainability concerns. Therefore, this paper aims to propose an IPM machine design for traction applications based on Nissan Leaf 2012 electric motor using a blend of magnet types that eliminate the use of Dy (can be thought of as hybrid magnets) to reduce the overall PM cost while maintaining comparable electromagnetic performance. Most importantly, this paper's objective is to provide a topology for the transportation sector using PM materials that addresses sustainability concerns. This paper will present the electromagnetic performance evaluation of the proposed design using Two-Dimensional Finite Element Analysis (2D-FEA). Comparison of key performance metrics including torque vs. current angle, efficiency map, risk of demagnetization, and comprehensive comparison to the baseline design will also be presented. In addition, rotor mechanical analysis as well as cost analysis are included.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"5 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":"127815234","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/IEMDC47953.2021.9449571
Timothy Slininger, W. Chan, E. Severson, B. Jawdat
Magnetic bearings are an area of interest for high speed applications, such as flywheel energy storage systems, to remove friction losses. Stable levitation cannot be achieved through a static passive magnetic bearing system, as indicated by Earnshaw's Theorem. Solutions using active magnetic bearings have been presented which achieve stable levitation, but induce losses in the current used to actively stabilize one or more degrees of freedom. To overcome these losses while retaining stable operation a fully passive architecture can be created utilizing superconducting magnetic bearings. This paper will review the key passive magnetic and superconducting technologies, their design and optimizations methods for different topologies, and existing work done to combine both into a functional stable system.
{"title":"An Overview on Passive Magnetic Bearings","authors":"Timothy Slininger, W. Chan, E. Severson, B. Jawdat","doi":"10.1109/IEMDC47953.2021.9449571","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449571","url":null,"abstract":"Magnetic bearings are an area of interest for high speed applications, such as flywheel energy storage systems, to remove friction losses. Stable levitation cannot be achieved through a static passive magnetic bearing system, as indicated by Earnshaw's Theorem. Solutions using active magnetic bearings have been presented which achieve stable levitation, but induce losses in the current used to actively stabilize one or more degrees of freedom. To overcome these losses while retaining stable operation a fully passive architecture can be created utilizing superconducting magnetic bearings. This paper will review the key passive magnetic and superconducting technologies, their design and optimizations methods for different topologies, and existing work done to combine both into a functional stable system.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"40 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":"126919515","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/IEMDC47953.2021.9449510
Hailin Huang, Dawei Li, X. Ren, R. Qu
This paper investigates the performances of dual PM split tooth vernier machines (DP-STVMs). It has been proved that by adjusting the distribution of stator auxiliary teeth, the flux modulation effect and no-load back EMF of DP-STVMs can be enhanced. However, this irregular structure also changes the periodicity and increases the amplitude of cogging torque. To investigate the source of cogging torque in DP-STVMs, an analytical method based on airgap fields and Maxwell stress tenser method is used, which can easily present the contribution of each airgap field component to the cogging torque. Based on the analysis, novel cogging torque reduction methods are proposed in this paper. Compared to regular rotor skewing method, the proposed methods can achieve better suppression effect on cogging torque and less reduction on noload back EMF.
{"title":"Analysis and Reduction of Cogging Torque in Dual PM Vernier Machine with Irregular Split Teeth","authors":"Hailin Huang, Dawei Li, X. Ren, R. Qu","doi":"10.1109/IEMDC47953.2021.9449510","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449510","url":null,"abstract":"This paper investigates the performances of dual PM split tooth vernier machines (DP-STVMs). It has been proved that by adjusting the distribution of stator auxiliary teeth, the flux modulation effect and no-load back EMF of DP-STVMs can be enhanced. However, this irregular structure also changes the periodicity and increases the amplitude of cogging torque. To investigate the source of cogging torque in DP-STVMs, an analytical method based on airgap fields and Maxwell stress tenser method is used, which can easily present the contribution of each airgap field component to the cogging torque. Based on the analysis, novel cogging torque reduction methods are proposed in this paper. Compared to regular rotor skewing method, the proposed methods can achieve better suppression effect on cogging torque and less reduction on noload back EMF.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"330 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":"116355571","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/IEMDC47953.2021.9449570
Qichen Jin, J. K. Mendizábal, N. Miljkovic, A. Banerjee
A fault detection and prediction method of insulated-gate bipolar transistor (IGBT) has been improved over the past decades to reduce system down time. In situ lifetime estimation of IGBT modules has been challenging due to a number of requirements: necessity to operate at high-voltage in the switching environment, measurement precision of the gate-threshold voltage or collector-to-emitter voltage. This paper presents a wear-fatigue estimation framework that consists of collector-to-emitter measurement, power loss calculation and thermal lifetime prediction model. The measurement circuit enables the estimation of power loss across a variety of IGBT modules with minimum impact on system reliability.
{"title":"In Situ Power Loss Estimation of IGBT Power Modules","authors":"Qichen Jin, J. K. Mendizábal, N. Miljkovic, A. Banerjee","doi":"10.1109/IEMDC47953.2021.9449570","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449570","url":null,"abstract":"A fault detection and prediction method of insulated-gate bipolar transistor (IGBT) has been improved over the past decades to reduce system down time. In situ lifetime estimation of IGBT modules has been challenging due to a number of requirements: necessity to operate at high-voltage in the switching environment, measurement precision of the gate-threshold voltage or collector-to-emitter voltage. This paper presents a wear-fatigue estimation framework that consists of collector-to-emitter measurement, power loss calculation and thermal lifetime prediction model. The measurement circuit enables the estimation of power loss across a variety of IGBT modules with minimum impact on system reliability.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"42 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":"115618498","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/IEMDC47953.2021.9449559
W. Gruber, Wolfgang Stallinger
This work deals with a compact and efficient permanent magnet excited synchronous machine to be used as paraglider towing winch. A battery supply with a voltage of only 48V is chosen for mobility and safety reasons. A rough machine design is first carried out analytically. After predesign, the final machine geometry is genetically optimized by 2D finite element method simulation using the software tool SyMSpace. After manufacture, the drive is commissioned with field-oriented control and the expected machine characteristics are compared with measurement results. Finally, also two self-sensing rotor angle estimation methods (one for the lower and one for upper speed range) are implemented and evaluated as back-up system to the installed rotor angle encoder.
{"title":"Design and Implementation of a 12.5kW PMSM as Paraglider Towing Winch","authors":"W. Gruber, Wolfgang Stallinger","doi":"10.1109/IEMDC47953.2021.9449559","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449559","url":null,"abstract":"This work deals with a compact and efficient permanent magnet excited synchronous machine to be used as paraglider towing winch. A battery supply with a voltage of only 48V is chosen for mobility and safety reasons. A rough machine design is first carried out analytically. After predesign, the final machine geometry is genetically optimized by 2D finite element method simulation using the software tool SyMSpace. After manufacture, the drive is commissioned with field-oriented control and the expected machine characteristics are compared with measurement results. Finally, also two self-sensing rotor angle estimation methods (one for the lower and one for upper speed range) are implemented and evaluated as back-up system to the installed rotor angle encoder.","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":"129852123","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/IEMDC47953.2021.9449593
Dilshad Surroop, P. Combes, Philippe Martin
We show how the rotor position of a PWM-fed PMSM can be recovered, even at low velocity or standstill, from the measured currents. The method is based on the excitation created by the PWM, without the need for an external probing signal. One originality of the approach is that we directly process the bitstream output by a Sigma-Delta modulator, hence do not require special derivative current sensors nor fast multibit ADCs, thereby opening the way for an effective implementation in an industrial drive.
{"title":"Towards an industrially implementable PWM-injection scheme","authors":"Dilshad Surroop, P. Combes, Philippe Martin","doi":"10.1109/IEMDC47953.2021.9449593","DOIUrl":"https://doi.org/10.1109/IEMDC47953.2021.9449593","url":null,"abstract":"We show how the rotor position of a PWM-fed PMSM can be recovered, even at low velocity or standstill, from the measured currents. The method is based on the excitation created by the PWM, without the need for an external probing signal. One originality of the approach is that we directly process the bitstream output by a Sigma-Delta modulator, hence do not require special derivative current sensors nor fast multibit ADCs, thereby opening the way for an effective implementation in an industrial drive.","PeriodicalId":106489,"journal":{"name":"2021 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"81 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":"128411468","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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