Pub Date : 2022-06-15DOI: 10.1109/ITEC53557.2022.9814067
J. Dinis, José Alberto, A. M. Marques Cardoso
This paper evaluates the implementation of a DC-DC buck converter at the receiver side of an inductive power transfer (IPT) system, for in-motion electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) charging, controlled using a maximum power point tracking (MPPT) controller with fast response, as a method to maximize the transfer of energy. Such MPPT controller keeps the system working closest to the operating point where the energy transferred is at its maximum, regardless of varying positioning between transmitter and receiver over time, making a fast response and settling times crucial. To prove the viability of such system, a number of simulations were conducted, analyzing the controller response, and the impact on efficiency, transmitter and receiver power, and total energy transferred, adding knowledge to an area of literature evidently lacking.
{"title":"Maximizing Energy Transfer in Wireless Power Transfer Systems Using Maximum Power Point Tracking for In-Motion EV and PHEV Charging","authors":"J. Dinis, José Alberto, A. M. Marques Cardoso","doi":"10.1109/ITEC53557.2022.9814067","DOIUrl":"https://doi.org/10.1109/ITEC53557.2022.9814067","url":null,"abstract":"This paper evaluates the implementation of a DC-DC buck converter at the receiver side of an inductive power transfer (IPT) system, for in-motion electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) charging, controlled using a maximum power point tracking (MPPT) controller with fast response, as a method to maximize the transfer of energy. Such MPPT controller keeps the system working closest to the operating point where the energy transferred is at its maximum, regardless of varying positioning between transmitter and receiver over time, making a fast response and settling times crucial. To prove the viability of such system, a number of simulations were conducted, analyzing the controller response, and the impact on efficiency, transmitter and receiver power, and total energy transferred, adding knowledge to an area of literature evidently lacking.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130147417","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 : 2022-06-15DOI: 10.1109/itec53557.2022.9813964
L. Rogers, T. Holdstock
eVTOL vehicles have seen rapid advancements in electric propulsion technologies supported by complex high-fidelity simulations that allow subsystem performance to be maximized. Optimizing subsystem performance can improve propulsion system power density, especially through improved cooling. However, current work on holistic system level approach to eVTOL propulsion system designs [1],[2] can benefit from earlier consideration of the interactions between inverter, motor, transmission, and thermal management systems. This can give a better understanding of the trade-offs between increasing power density and more complex, active cooling systems. These trade-offs must be understood as active cooling elements can lead to additional redundancy and certification requirements, which can increase the time-to-market in a highly competitive environment. This paper proposes an approach that quantifies these trade-offs early in the design process, so that the right propulsion system can be brought to market with reduced time to market.
{"title":"An investigation into different eVTOL propulsion thermal management concepts using advanced 1-D simulation methods","authors":"L. Rogers, T. Holdstock","doi":"10.1109/itec53557.2022.9813964","DOIUrl":"https://doi.org/10.1109/itec53557.2022.9813964","url":null,"abstract":"eVTOL vehicles have seen rapid advancements in electric propulsion technologies supported by complex high-fidelity simulations that allow subsystem performance to be maximized. Optimizing subsystem performance can improve propulsion system power density, especially through improved cooling. However, current work on holistic system level approach to eVTOL propulsion system designs [1],[2] can benefit from earlier consideration of the interactions between inverter, motor, transmission, and thermal management systems. This can give a better understanding of the trade-offs between increasing power density and more complex, active cooling systems. These trade-offs must be understood as active cooling elements can lead to additional redundancy and certification requirements, which can increase the time-to-market in a highly competitive environment. This paper proposes an approach that quantifies these trade-offs early in the design process, so that the right propulsion system can be brought to market with reduced time to market.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128921866","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 : 2022-06-15DOI: 10.1109/itec53557.2022.9813947
Nguyen-Anh Nguyen, Phuong-Ha La, Sungjin Choi
Since the retired battery pack from EV piles up, reusing the battery pack for the battery energy storage system (SL-BESS) is a promising solution. Due to the different aging characteristics, the performance of the cells inside the battery pack becomes mismatched, which raises a safety issue for the cells. For the maintenance, the battery pack requires a full diagnosis to scan the characteristics and to equalize the state of charge level. Although the cell equalizer exists in the battery pack, it requires a long time of operation to align the SOC of cells and does not provide a target SOC balancing. This paper proposes a high-speed SOC alignment algorithm for such a seconds-life battery application. The performance of the alignment algorithm is verified by the real-time simulations for the 20-series battery string. The SOC levels of the cells are adjusted to the target level and the SOC deviation is within 3%. The proposed method only requires 50% operation time of the conventional method.
{"title":"High-speed Target SOC Alignment Algorithm for Second-life Battery Pack Maintenance","authors":"Nguyen-Anh Nguyen, Phuong-Ha La, Sungjin Choi","doi":"10.1109/itec53557.2022.9813947","DOIUrl":"https://doi.org/10.1109/itec53557.2022.9813947","url":null,"abstract":"Since the retired battery pack from EV piles up, reusing the battery pack for the battery energy storage system (SL-BESS) is a promising solution. Due to the different aging characteristics, the performance of the cells inside the battery pack becomes mismatched, which raises a safety issue for the cells. For the maintenance, the battery pack requires a full diagnosis to scan the characteristics and to equalize the state of charge level. Although the cell equalizer exists in the battery pack, it requires a long time of operation to align the SOC of cells and does not provide a target SOC balancing. This paper proposes a high-speed SOC alignment algorithm for such a seconds-life battery application. The performance of the alignment algorithm is verified by the real-time simulations for the 20-series battery string. The SOC levels of the cells are adjusted to the target level and the SOC deviation is within 3%. The proposed method only requires 50% operation time of the conventional method.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132025466","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 : 2022-06-15DOI: 10.1109/ITEC53557.2022.9813979
Armin Ebrahimian, W. Khan, S. Iman Hosseini S., N. Weise
The concept of More Electric Aircraft (MEA) has gained a lot of attention from researchers recently. For such an application, two of the pivotal requirements are having a power dense and energy efficient propulsion system. To that end, in the design procedure of the electric motor and its drive system, high power density and efficiency over the entire operating range is the ultimate goal. Thus, the integration of the electric motor and drive system into a single unit has been introduced as an effective method to meet the design objectives. Therefore, this paper presents the design procedure of a module of an Integrated Modular Motor Drive (IMMD). Electrothermal design of the GaN single phase full bridge inverter module has been conducted and the results are discussed. The analysis includes the thermal investigation of the WBG semiconductors by sweeping the number of parallel devices in each switch position at different switching frequencies. Furthermore, a single drive PCB module is designed and evaluated in ANSYS Q3D for parasitic extraction. Finally, double pulse test (DPT) is performed to verify the optimal design of PCB busbar.
{"title":"Electrothermal Design of a GaN-Based Axially Stator Iron-Mounted Fully Integrated Modular Motor Drive","authors":"Armin Ebrahimian, W. Khan, S. Iman Hosseini S., N. Weise","doi":"10.1109/ITEC53557.2022.9813979","DOIUrl":"https://doi.org/10.1109/ITEC53557.2022.9813979","url":null,"abstract":"The concept of More Electric Aircraft (MEA) has gained a lot of attention from researchers recently. For such an application, two of the pivotal requirements are having a power dense and energy efficient propulsion system. To that end, in the design procedure of the electric motor and its drive system, high power density and efficiency over the entire operating range is the ultimate goal. Thus, the integration of the electric motor and drive system into a single unit has been introduced as an effective method to meet the design objectives. Therefore, this paper presents the design procedure of a module of an Integrated Modular Motor Drive (IMMD). Electrothermal design of the GaN single phase full bridge inverter module has been conducted and the results are discussed. The analysis includes the thermal investigation of the WBG semiconductors by sweeping the number of parallel devices in each switch position at different switching frequencies. Furthermore, a single drive PCB module is designed and evaluated in ANSYS Q3D for parasitic extraction. Finally, double pulse test (DPT) is performed to verify the optimal design of PCB busbar.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123313533","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 : 2022-06-15DOI: 10.1109/ITEC53557.2022.9814020
Benjamin Luckett, Jiangbiao He
Aircraft electrification is an emerging technology to enable net-zero emissions for global aviation. When designing an electric aircraft propulsion system, multiple objectives are desirable for the power electronic converters such as concurrently high efficiency and high power density. This requires computationally efficient design optimization. The approach proposed in this work aims to optimize an electric aircraft propulsion converter on the basis of high power density, high efficiency, high reliability, and low cost. This design methodology has been examined and a candidate solution set has been generated for a back-to-back voltage source converter rated at 1 MW with a DC-link voltage of 2.4 kV. Using a selection of commercially available power components, accurate calculations, including cost, have been conducted for the 17,107,272 solutions in just 20 minutes approximately. Of the 7,930 designs in the Pareto front when using the objectives of power density, cost, efficiency, and reliability, the optimal performance on each goal for the propulsion power converter system is 11.151 kW/kg, $22.03/kW, 98.302%, and 1,642 FIT, respectively.
{"title":"Multi-Objective Design Optimization of Electric Aircraft Propulsion Power Converters","authors":"Benjamin Luckett, Jiangbiao He","doi":"10.1109/ITEC53557.2022.9814020","DOIUrl":"https://doi.org/10.1109/ITEC53557.2022.9814020","url":null,"abstract":"Aircraft electrification is an emerging technology to enable net-zero emissions for global aviation. When designing an electric aircraft propulsion system, multiple objectives are desirable for the power electronic converters such as concurrently high efficiency and high power density. This requires computationally efficient design optimization. The approach proposed in this work aims to optimize an electric aircraft propulsion converter on the basis of high power density, high efficiency, high reliability, and low cost. This design methodology has been examined and a candidate solution set has been generated for a back-to-back voltage source converter rated at 1 MW with a DC-link voltage of 2.4 kV. Using a selection of commercially available power components, accurate calculations, including cost, have been conducted for the 17,107,272 solutions in just 20 minutes approximately. Of the 7,930 designs in the Pareto front when using the objectives of power density, cost, efficiency, and reliability, the optimal performance on each goal for the propulsion power converter system is 11.151 kW/kg, $22.03/kW, 98.302%, and 1,642 FIT, respectively.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123060554","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 : 2022-06-15DOI: 10.1109/itec53557.2022.9813926
Alexander A. Markov, Joshua D. Brooks, Russell K. Denney, Elena Garcia, D. Mavris, Gokcin Cinar, S. Patnaik
Electrified propulsion offers high efficiency, scalability, and high power discharge capability which can be utilized for increased agility and directed energy applications in unmanned aerial vehicles (UAV). However, the limited energy density of state-of-the-art batteries creates a technological bottle-neck, penalizing the payload and range capabilities compared to conventional propulsion aircraft. This paper is a part of a series of publications that aim to design, assess, and compare various electrified propulsion system architectures on a common UAV testbed. In this paper, a hybrid partial turboelectric distributed propulsion (HPTeDP) system and its thermal management system were designed and analyzed. The battery was managed as a supplementary energy source used only during certain mission segments that require high power. A thermal management system was designed to manage the excess heat generation from the onboard battery, generator, and electric motors. The HPTeDP and thermal management systems were sized under the fixed geometry, maximum takeoff weight and point performance requirements of the conventional testbed. The payload-range capability of the HPTeDP UAV was compared to the conventional, series distributed and turboelectric distributed UAVs designed under the same requirements used in previous studies.
{"title":"Analysis of a Hybrid Partial Turboelectric Distributed Propulsion System for a Medium Altitude Long Endurance UAV","authors":"Alexander A. Markov, Joshua D. Brooks, Russell K. Denney, Elena Garcia, D. Mavris, Gokcin Cinar, S. Patnaik","doi":"10.1109/itec53557.2022.9813926","DOIUrl":"https://doi.org/10.1109/itec53557.2022.9813926","url":null,"abstract":"Electrified propulsion offers high efficiency, scalability, and high power discharge capability which can be utilized for increased agility and directed energy applications in unmanned aerial vehicles (UAV). However, the limited energy density of state-of-the-art batteries creates a technological bottle-neck, penalizing the payload and range capabilities compared to conventional propulsion aircraft. This paper is a part of a series of publications that aim to design, assess, and compare various electrified propulsion system architectures on a common UAV testbed. In this paper, a hybrid partial turboelectric distributed propulsion (HPTeDP) system and its thermal management system were designed and analyzed. The battery was managed as a supplementary energy source used only during certain mission segments that require high power. A thermal management system was designed to manage the excess heat generation from the onboard battery, generator, and electric motors. The HPTeDP and thermal management systems were sized under the fixed geometry, maximum takeoff weight and point performance requirements of the conventional testbed. The payload-range capability of the HPTeDP UAV was compared to the conventional, series distributed and turboelectric distributed UAVs designed under the same requirements used in previous studies.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126799390","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 : 2022-06-15DOI: 10.1109/ITEC53557.2022.9813996
P. Kollmeyer, Mina Naguib, Fauzia Khanum, A. Emadi
There are hundreds of approaches to estimating battery state of charge (SOC). It is difficult to compare results reported in different papers because each typically uses a different dataset. While some papers compare multiple SOC estimation algorithms, the author's bias, skill, or effort towards each algorithm may unintentionally skew the results. A standardized way to test and compare methodologies between authors is necessary to allow the best algorithms to stand out. An example in another application area is the National Institute of Standards (NIST) Face Recognition Vendor Test, which compares facial recognition software using a standardized dataset. A similar approach is proposed here for batteries, where data is provided for users to parameterize and train their algorithms. An online tool is provided to subject the algorithms to a wide range of blinded test cases. A high-quality dataset is prepared using battery cells from a prevalent electric vehicle. A total of sixty-four drive cycles are performed at each of six temperatures ranging from -20 °C to 40 °C. The blind modelling tool is demonstrated for one SOC estimation algorithm. It will be made available for researchers to benchmark and compare their algorithms.
{"title":"A Blind Modeling Tool for Standardized Evaluation of Battery State of Charge Estimation Algorithms","authors":"P. Kollmeyer, Mina Naguib, Fauzia Khanum, A. Emadi","doi":"10.1109/ITEC53557.2022.9813996","DOIUrl":"https://doi.org/10.1109/ITEC53557.2022.9813996","url":null,"abstract":"There are hundreds of approaches to estimating battery state of charge (SOC). It is difficult to compare results reported in different papers because each typically uses a different dataset. While some papers compare multiple SOC estimation algorithms, the author's bias, skill, or effort towards each algorithm may unintentionally skew the results. A standardized way to test and compare methodologies between authors is necessary to allow the best algorithms to stand out. An example in another application area is the National Institute of Standards (NIST) Face Recognition Vendor Test, which compares facial recognition software using a standardized dataset. A similar approach is proposed here for batteries, where data is provided for users to parameterize and train their algorithms. An online tool is provided to subject the algorithms to a wide range of blinded test cases. A high-quality dataset is prepared using battery cells from a prevalent electric vehicle. A total of sixty-four drive cycles are performed at each of six temperatures ranging from -20 °C to 40 °C. The blind modelling tool is demonstrated for one SOC estimation algorithm. It will be made available for researchers to benchmark and compare their algorithms.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121221541","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 : 2022-06-15DOI: 10.1109/ITEC53557.2022.9813987
Elisabeth Scheiner, Ilya Burlakin, Niklas Strunz, A. Raab, G. Mehlmann, M. Luther
As a result of the enduring change in power systems the risk of blackouts caused by voltage instability is growing. This paper addresses the challenges of future requirements and Var equipment. The focus is on enhancing the short-term dynamic performance of future electrical power systems. In contrast to traditional steady-state considerations, possible placement options of reactive power sources using dynamic stability indicators based on voltage trajectories are determined. After identifying worst-case fault scenarios based on the Contingency Severity Index (CSI), different time constants for the reactive power control of MSC and STATCOM and their effects on the short-term voltage stability are investigated. The preselection is used to reduce the computational effort and is based on indicators that are determined using RMS calculations. The approach is tested using a modified Nordic Test System with a 35% share of renewable energy sources.
{"title":"Impact of Time Constants of Reactive Power Sources on Short-Term Voltage Stability","authors":"Elisabeth Scheiner, Ilya Burlakin, Niklas Strunz, A. Raab, G. Mehlmann, M. Luther","doi":"10.1109/ITEC53557.2022.9813987","DOIUrl":"https://doi.org/10.1109/ITEC53557.2022.9813987","url":null,"abstract":"As a result of the enduring change in power systems the risk of blackouts caused by voltage instability is growing. This paper addresses the challenges of future requirements and Var equipment. The focus is on enhancing the short-term dynamic performance of future electrical power systems. In contrast to traditional steady-state considerations, possible placement options of reactive power sources using dynamic stability indicators based on voltage trajectories are determined. After identifying worst-case fault scenarios based on the Contingency Severity Index (CSI), different time constants for the reactive power control of MSC and STATCOM and their effects on the short-term voltage stability are investigated. The preselection is used to reduce the computational effort and is based on indicators that are determined using RMS calculations. The approach is tested using a modified Nordic Test System with a 35% share of renewable energy sources.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"26 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131463462","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 : 2022-06-15DOI: 10.1109/ITEC53557.2022.9813836
M. Muteba
This paper focuses on the analysis of a surface-mounted V-shape permanent magnet assisted-synchronous reluctance motor (SVSPMa-SynRM) for light electric vehicles (LEVs) traction applications. For federal urban driving schedule (FUDS), most ELVs require traction motors that operates with smooth torque that has less ripple contents to contain noise and vibration. The proposed permanent magnet assisted-synchronous reluctance motor (PMa-SynRM) has a rotor with V-shape lamination cut-offs on the q-axis in the axial direction. The V-shape lamination cut-offs accommodate pieces of NdFeB-37 rare permanent magnet (PM) to obtain better electromotive force and less ripple torque. The proposed SVSPMa-SynRM is designed and modelled using 3-D finite-element method (FEM). The 3-D finite element analysis (FEA) results are compared to the results of other five different models. The combination of good torque performance and reduction of NdFeB-37 rare permanent magnet is tremendously achieved by the proposed motor as compared to other PM assisted-synchronous reluctance motors analysed in this paper.
{"title":"Surface-Mounted V-shapes PM assisted-Synchronous Reluctance Motor for Light Electric Vehicles","authors":"M. Muteba","doi":"10.1109/ITEC53557.2022.9813836","DOIUrl":"https://doi.org/10.1109/ITEC53557.2022.9813836","url":null,"abstract":"This paper focuses on the analysis of a surface-mounted V-shape permanent magnet assisted-synchronous reluctance motor (SVSPMa-SynRM) for light electric vehicles (LEVs) traction applications. For federal urban driving schedule (FUDS), most ELVs require traction motors that operates with smooth torque that has less ripple contents to contain noise and vibration. The proposed permanent magnet assisted-synchronous reluctance motor (PMa-SynRM) has a rotor with V-shape lamination cut-offs on the q-axis in the axial direction. The V-shape lamination cut-offs accommodate pieces of NdFeB-37 rare permanent magnet (PM) to obtain better electromotive force and less ripple torque. The proposed SVSPMa-SynRM is designed and modelled using 3-D finite-element method (FEM). The 3-D finite element analysis (FEA) results are compared to the results of other five different models. The combination of good torque performance and reduction of NdFeB-37 rare permanent magnet is tremendously achieved by the proposed motor as compared to other PM assisted-synchronous reluctance motors analysed in this paper.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131625492","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 : 2022-06-15DOI: 10.1109/itec53557.2022.9813995
Dongwoo Han, Sanghun Kim, Xiaofeng Dong, Hui Li, Jinyeong Moon, Yuan Li, F. Peng
Silicon carbide (SiC) power devices have advantages, such as excellent breakdown field strength, heat dissipation characteristics, and electron saturation velocity. Thus, the SiC-based power semiconductors can operate at higher switching frequencies with higher voltages and better stability than conventional silicon (Si) devices resulting in a high-power density. However, the high switching slew rate of SiC devices can cause EMI noise problems. Conventional gate drivers cannot effectively control such EMI noise issues, including passive and active gate driver techniques under various system environments. Therefore, this paper proposes an integrated multi-level active gate driver (AGD) to solve the EMI noise issues effectively and flexibly. The proposed AGD controls the turn-on switching slew rate through controllable AGD voltages in real-time. The leg controller generates multi-level drive voltages according to the system variables that can significantly affect switching characteristics, such as the DC BUS voltage, output current, and device temperature. The proposed AGD enables switching devices to accurately control the turn-on switching slew rates under various system operational conditions. The proposed AGD method has been verified through experimental results.
{"title":"An Integrated Multi-level Active Gate Driver for SiC Power Modules","authors":"Dongwoo Han, Sanghun Kim, Xiaofeng Dong, Hui Li, Jinyeong Moon, Yuan Li, F. Peng","doi":"10.1109/itec53557.2022.9813995","DOIUrl":"https://doi.org/10.1109/itec53557.2022.9813995","url":null,"abstract":"Silicon carbide (SiC) power devices have advantages, such as excellent breakdown field strength, heat dissipation characteristics, and electron saturation velocity. Thus, the SiC-based power semiconductors can operate at higher switching frequencies with higher voltages and better stability than conventional silicon (Si) devices resulting in a high-power density. However, the high switching slew rate of SiC devices can cause EMI noise problems. Conventional gate drivers cannot effectively control such EMI noise issues, including passive and active gate driver techniques under various system environments. Therefore, this paper proposes an integrated multi-level active gate driver (AGD) to solve the EMI noise issues effectively and flexibly. The proposed AGD controls the turn-on switching slew rate through controllable AGD voltages in real-time. The leg controller generates multi-level drive voltages according to the system variables that can significantly affect switching characteristics, such as the DC BUS voltage, output current, and device temperature. The proposed AGD enables switching devices to accurately control the turn-on switching slew rates under various system operational conditions. The proposed AGD method has been verified through experimental results.","PeriodicalId":275570,"journal":{"name":"2022 IEEE Transportation Electrification Conference & Expo (ITEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128013612","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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