The Experts below are selected from a list of 30588 Experts worldwide ranked by ideXlab platform
Le Sun - One of the best experts on this subject based on the ideXlab platform.
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Key Issues in Design and Manufacture of Magnetic-Geared Dual-Rotor Motor for Hybrid Vehicles
IEEE Transactions on Energy Conversion, 2017Co-Authors: Le Sun, Ming Cheng, Minghao TongAbstract:This paper presents a practical design guide for the magnetic-geared dual-Rotor Motor (MGDRM), which is one of the candidates of the power split device in hybrid electric vehicles. The spoke-type permanent magnet Rotor and simplified complementary structure are first used to form a new MGDRM, which exhibits less flux leakage, less cost, and less torque ripple. Based on this structure, an FEA aided key dimensions design technique, considering the height of the outer Rotor, is developed with the goal of generating maximum torque for a given Motor volume. The method also takes the core saturation into consideration. Moreover, to enhance the manufacturability of the complimentary MGDRM, a unique technique is proposed to implement the dual Rotor structure with simple components. A prototype of 16 kW is designed and manufactured. Experiments are carried out on a hybrid powertrain test bench, verifying the proposed design and manufacture technique.
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Motion Control and Performance Evaluation of a Magnetic-Geared Dual-Rotor Motor in Hybrid Powertrain
IEEE Transactions on Industrial Electronics, 2017Co-Authors: Le Sun, Ming Cheng, Honghui Wen, Lihua SongAbstract:The magnetic-geared dual-Rotor Motor (MGDRM) has been proposed as a power split device for several years, but there is not an evaluation work for an MGDRM in a real hybrid powertrain so far. As a pilot demo, an MGDRM-based hybrid powertrain with a real engine is built and tested in a real hybrid test bench. The closed-loop speed control is developed for the MGDRM, with which two pragmatic functions of the hybrid powertrain are realized by the MGDRM. First, the engine can be started by the MGDRM outer Rotor no matter whether the vehicle is parked or traveling. Second, the torque coordination function of the MGDRM can help the engine to stabilize at a fixed work situation. This feature is the basement to adjust the operation and efficiency of engine. The power conversion efficiency map of the MGDRM is tested, based on which the performance of the power split in different operating situations can be evaluated.
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Analysis and Control of Complementary Magnetic-Geared Dual-Rotor Motor
IEEE Transactions on Industrial Electronics, 2016Co-Authors: Le Sun, Ming Cheng, Jiawen Zhang, Lihua SongAbstract:Magnetic-geared dual-Rotor Motor (MGDRM) is receiving increasing attention due to its advantages as a kind of pure electrical power split device for the series–parallel hybrid powertrain. This paper performs a systematic study on the analysis and control model of the complementary MGDRM. The principle of the complementary MGDRM is illustrated in detail. The torque production and flux-weakening ability of the complementary MGDRM are analyzed by the analytical method and a revised 2D FEA method. The field-oriented-control (FOC) method for the MGDRM is first realized in this paper. On the basis of the FOC model, the torque production and flux-weakening control in a wide speed range can be implemented. The static and dynamic performances of the MGDRM are analyzed based on the FEA and simulation models. The experiments on a prototype of the complementary MGDRM are carried out to validate the study.
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Segments number design of the complementary magnetic-geared dual-Rotor Motors
2016 IEEE Transportation Electrification Conference and Expo (ITEC), 2016Co-Authors: Le Sun, Ming Cheng, Honghui Wen, Lihua SongAbstract:Magnetic-geared dual-Rotor Motor (MGDRM) has been considered as a promising candidate of the power-split device in the hybrid electric vehicle (HEV). Essentially, MGDRM is a pure electrical component without gears, so the lubrication system can be canceled, and its lifetime can also perform well. However, current series-parallel powertrain for HEVs is dominated by the Toyota Hybrid System (THS). This is because the design principle of the MGDRM has not been fully transformed to a practical technology. This paper performs as an analysis and application of the segments number design of the complementary MGDRM. Complementary structure has been proposed to improve the performance of MGDRM. In this paper, more detailed discussion of the complementary structure will be made. A prototype machine is also fabricated for experimental validation of the proposed MGDRM.
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Split ratio design technique of the magnetic-gear dual-Rotor Motor
2016 IEEE Conference on Electromagnetic Field Computation (CEFC), 2016Co-Authors: Le Sun, Gan Zhang, Ming Cheng, Wei Hua, Bangfu ZhangAbstract:This paper presents the split ratio optimization technique of the magnetic-gear dual-Rotor Motor (MGDRM). The split ratio of a MGDRM, which relates the stator inner diameter to the total Motor diameter, can be optimized with the goal of generating maximum torque for a given Motor volume. A new complementary structure is used to reduce the torque ripple. Combining with this new design techniques, a prototype of 12 kW is designed and manufactured. Experiments are carried out on a hybrid powertrain test bench. It is found that the design stage prediction is close to the test results.
Praveen Kumar - One of the best experts on this subject based on the ideXlab platform.
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Design, Prototyping, and Testing of a Dual-Rotor Motor for Electric Vehicle Application
IEEE Transactions on Industrial Electronics, 2018Co-Authors: Ankit Dalal, Praveen KumarAbstract:Permanent magnet Motors and induction Motors are used in many electric vehicles (EVs) and synchronous reluctance Motors have been used in some experimental EVs. However, none of them meet all the objectives of high efficiency, high power density, and low cost. In this paper, a dual-Rotor Motor (DRM) is proposed with potential application in EVs. The proposed Motor is a proof of concept and is unique because it uses a synchronous and an asynchronous Rotor. A conceptual analysis and mechanical configuration of this Motor are presented in this paper, and the experimental demonstration of its working principle is also presented. The preliminary results, presented in this paper, show that a DRM with two different Rotor types (synchronous and asynchronous) is feasible, and this opens a new direction in R&D of such Motors.
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2-D Analytical Subdomain Model for Hybrid Dual-Rotor Motor
IEEE Transactions on Magnetics, 2016Co-Authors: Ankit Dalal, Sameer Nekkalapu, Praveen KumarAbstract:Recently, dual-Rotor Motor (DRM) has emerged as an alternative for an induction Motor (IM) or a permanent-magnet (PM) Motor for electric vehicle application, due to its better drive performance and better torque density. This paper presents an analytical model for the hybrid IM-PM configuration of DRM. The analytical model can be used to predict induced bar currents, electromagnetic torque generated, and magnetic fields in various regions of the Motor. The mentioned calculations are performed under steady-state conditions. The analytical method is developed using the subdomain model approach in 2-D polar coordinates. Appropriate governing equations along with boundary conditions across all the sub-domain regions of the DRM are employed to calculate the magnetic vector potential in all the regions. The developed analytical model has been validated with finite-element analysis for various operating conditions, and high accuracy has been achieved for all the results.
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a novel steady state model of a hybrid dual Rotor Motor comprising electrical equivalent circuit and performance equations
IEEE Transactions on Magnetics, 2014Co-Authors: Ankit Dalal, Mohammed Nasir Ansari, Praveen KumarAbstract:Dual Rotor Motors (DRMs) for the electric vehicle application are a competitive alternative to the multi-Motor drivetrain configuration to meet the high-power density and better vehicle drive performance. In this paper, a steady-state model of a hybrid DRM is developed using electromechanical energy conversion principles. The developed model comprises electrical equivalent circuit and torque equation. The model helps in understanding the Motor operation and can be used for quick performance evaluation. The finite element method has been used to validate the developed model and a good agreement has been achieved for the results obtained.
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Steady state model of Dual Rotor Motor for electric vehicle application
2014 IEEE International Conference on Power Electronics Drives and Energy Systems (PEDES), 2014Co-Authors: Rakesh Roy, Anannya Gogoi, Suparna Kar, Ankit Dalai, Praveen KumarAbstract:Dual Rotor Motor (DRM) can be a very suitable option for electric vehicle application due to its compact size, high torque and high power density. In this paper, an analytical model of DRM is developed, from where the steady state torque equation is investigated for different firing angle of the inverter feeding the Motor. The finite element analysis of the same machine is performed to validate the developed analytical model. Speed-torque characteristics for different operating modes have also been analyzed for the better understanding of DRM behavior, which are required to control the DRM.
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Design and optimization of dual Rotor Motor for electric vehicle application
2014 IEEE International Conference on Power Electronics Drives and Energy Systems (PEDES), 2014Co-Authors: Nekkalapu Sameer, Ankit Dalai, S. A. Prashanth, Praveen KumarAbstract:Selection of a particular Motor type for electric vehicle application is a very challenging task. Dual Rotor Motor (DRM) drive train due to its high torque density and compact size in comparison to drive trains with multiple Motors has emerged as a potential alternative to conventional Motor types such as permanent magnet Motor and induction Motors. Due to the presence of three magnetically coupled Motor parts, design and optimization of DRM geometry becomes a complex job. In this paper different configurations of a particular type of DRM have been analyzed using finite element analysis (FEA). The FEA results obtained provides a clear understanding of the interaction of three fields as well as insight to the Motor design aspects.
Ming Cheng - One of the best experts on this subject based on the ideXlab platform.
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Key Issues in Design and Manufacture of Magnetic-Geared Dual-Rotor Motor for Hybrid Vehicles
IEEE Transactions on Energy Conversion, 2017Co-Authors: Le Sun, Ming Cheng, Minghao TongAbstract:This paper presents a practical design guide for the magnetic-geared dual-Rotor Motor (MGDRM), which is one of the candidates of the power split device in hybrid electric vehicles. The spoke-type permanent magnet Rotor and simplified complementary structure are first used to form a new MGDRM, which exhibits less flux leakage, less cost, and less torque ripple. Based on this structure, an FEA aided key dimensions design technique, considering the height of the outer Rotor, is developed with the goal of generating maximum torque for a given Motor volume. The method also takes the core saturation into consideration. Moreover, to enhance the manufacturability of the complimentary MGDRM, a unique technique is proposed to implement the dual Rotor structure with simple components. A prototype of 16 kW is designed and manufactured. Experiments are carried out on a hybrid powertrain test bench, verifying the proposed design and manufacture technique.
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Motion Control and Performance Evaluation of a Magnetic-Geared Dual-Rotor Motor in Hybrid Powertrain
IEEE Transactions on Industrial Electronics, 2017Co-Authors: Le Sun, Ming Cheng, Honghui Wen, Lihua SongAbstract:The magnetic-geared dual-Rotor Motor (MGDRM) has been proposed as a power split device for several years, but there is not an evaluation work for an MGDRM in a real hybrid powertrain so far. As a pilot demo, an MGDRM-based hybrid powertrain with a real engine is built and tested in a real hybrid test bench. The closed-loop speed control is developed for the MGDRM, with which two pragmatic functions of the hybrid powertrain are realized by the MGDRM. First, the engine can be started by the MGDRM outer Rotor no matter whether the vehicle is parked or traveling. Second, the torque coordination function of the MGDRM can help the engine to stabilize at a fixed work situation. This feature is the basement to adjust the operation and efficiency of engine. The power conversion efficiency map of the MGDRM is tested, based on which the performance of the power split in different operating situations can be evaluated.
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Analysis and Control of Complementary Magnetic-Geared Dual-Rotor Motor
IEEE Transactions on Industrial Electronics, 2016Co-Authors: Le Sun, Ming Cheng, Jiawen Zhang, Lihua SongAbstract:Magnetic-geared dual-Rotor Motor (MGDRM) is receiving increasing attention due to its advantages as a kind of pure electrical power split device for the series–parallel hybrid powertrain. This paper performs a systematic study on the analysis and control model of the complementary MGDRM. The principle of the complementary MGDRM is illustrated in detail. The torque production and flux-weakening ability of the complementary MGDRM are analyzed by the analytical method and a revised 2D FEA method. The field-oriented-control (FOC) method for the MGDRM is first realized in this paper. On the basis of the FOC model, the torque production and flux-weakening control in a wide speed range can be implemented. The static and dynamic performances of the MGDRM are analyzed based on the FEA and simulation models. The experiments on a prototype of the complementary MGDRM are carried out to validate the study.
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Segments number design of the complementary magnetic-geared dual-Rotor Motors
2016 IEEE Transportation Electrification Conference and Expo (ITEC), 2016Co-Authors: Le Sun, Ming Cheng, Honghui Wen, Lihua SongAbstract:Magnetic-geared dual-Rotor Motor (MGDRM) has been considered as a promising candidate of the power-split device in the hybrid electric vehicle (HEV). Essentially, MGDRM is a pure electrical component without gears, so the lubrication system can be canceled, and its lifetime can also perform well. However, current series-parallel powertrain for HEVs is dominated by the Toyota Hybrid System (THS). This is because the design principle of the MGDRM has not been fully transformed to a practical technology. This paper performs as an analysis and application of the segments number design of the complementary MGDRM. Complementary structure has been proposed to improve the performance of MGDRM. In this paper, more detailed discussion of the complementary structure will be made. A prototype machine is also fabricated for experimental validation of the proposed MGDRM.
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Split ratio design technique of the magnetic-gear dual-Rotor Motor
2016 IEEE Conference on Electromagnetic Field Computation (CEFC), 2016Co-Authors: Le Sun, Gan Zhang, Ming Cheng, Wei Hua, Bangfu ZhangAbstract:This paper presents the split ratio optimization technique of the magnetic-gear dual-Rotor Motor (MGDRM). The split ratio of a MGDRM, which relates the stator inner diameter to the total Motor diameter, can be optimized with the goal of generating maximum torque for a given Motor volume. A new complementary structure is used to reduce the torque ripple. Combining with this new design techniques, a prototype of 12 kW is designed and manufactured. Experiments are carried out on a hybrid powertrain test bench. It is found that the design stage prediction is close to the test results.
Lihua Song - One of the best experts on this subject based on the ideXlab platform.
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Motion Control and Performance Evaluation of a Magnetic-Geared Dual-Rotor Motor in Hybrid Powertrain
IEEE Transactions on Industrial Electronics, 2017Co-Authors: Le Sun, Ming Cheng, Honghui Wen, Lihua SongAbstract:The magnetic-geared dual-Rotor Motor (MGDRM) has been proposed as a power split device for several years, but there is not an evaluation work for an MGDRM in a real hybrid powertrain so far. As a pilot demo, an MGDRM-based hybrid powertrain with a real engine is built and tested in a real hybrid test bench. The closed-loop speed control is developed for the MGDRM, with which two pragmatic functions of the hybrid powertrain are realized by the MGDRM. First, the engine can be started by the MGDRM outer Rotor no matter whether the vehicle is parked or traveling. Second, the torque coordination function of the MGDRM can help the engine to stabilize at a fixed work situation. This feature is the basement to adjust the operation and efficiency of engine. The power conversion efficiency map of the MGDRM is tested, based on which the performance of the power split in different operating situations can be evaluated.
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Analysis and Control of Complementary Magnetic-Geared Dual-Rotor Motor
IEEE Transactions on Industrial Electronics, 2016Co-Authors: Le Sun, Ming Cheng, Jiawen Zhang, Lihua SongAbstract:Magnetic-geared dual-Rotor Motor (MGDRM) is receiving increasing attention due to its advantages as a kind of pure electrical power split device for the series–parallel hybrid powertrain. This paper performs a systematic study on the analysis and control model of the complementary MGDRM. The principle of the complementary MGDRM is illustrated in detail. The torque production and flux-weakening ability of the complementary MGDRM are analyzed by the analytical method and a revised 2D FEA method. The field-oriented-control (FOC) method for the MGDRM is first realized in this paper. On the basis of the FOC model, the torque production and flux-weakening control in a wide speed range can be implemented. The static and dynamic performances of the MGDRM are analyzed based on the FEA and simulation models. The experiments on a prototype of the complementary MGDRM are carried out to validate the study.
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Segments number design of the complementary magnetic-geared dual-Rotor Motors
2016 IEEE Transportation Electrification Conference and Expo (ITEC), 2016Co-Authors: Le Sun, Ming Cheng, Honghui Wen, Lihua SongAbstract:Magnetic-geared dual-Rotor Motor (MGDRM) has been considered as a promising candidate of the power-split device in the hybrid electric vehicle (HEV). Essentially, MGDRM is a pure electrical component without gears, so the lubrication system can be canceled, and its lifetime can also perform well. However, current series-parallel powertrain for HEVs is dominated by the Toyota Hybrid System (THS). This is because the design principle of the MGDRM has not been fully transformed to a practical technology. This paper performs as an analysis and application of the segments number design of the complementary MGDRM. Complementary structure has been proposed to improve the performance of MGDRM. In this paper, more detailed discussion of the complementary structure will be made. A prototype machine is also fabricated for experimental validation of the proposed MGDRM.
Pierre Sicard - One of the best experts on this subject based on the ideXlab platform.
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Implementation of a DSP based real-time estimator of induction Motors Rotor time constant
IEEE Transactions on Power Electronics, 2002Co-Authors: A. Ba-razzouk, Ahmed Cheriti, Pierre SicardAbstract:Implementation of ac drives insensitive to parameter variations is an important need in the field of high performance drives. For drives controlled by the indirect Rotor flux oriented control method (IRFOC), the Rotor time constant (/spl tau//sub r/ = L/sub r//R/sub r/) exerts a dominant role in the loss of dynamic performance and its variation results in an undesirable coupling between flux and torque of the machine. This paper presents a new scheme for on-line estimation of Rotor time constant using dq representation of the model in the stationary reference frame and measurements of accessible Motor variables only (voltages, currents and speed). The estimator is tested by simulation in the MATLAB/SIMULINK environment and validated experimentally on a 1/4 hp squirrel cage Motor and a 1/4 hp wound Rotor Motor with implementation on a TMS320C31 digital signal processor.
