http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
SBW 반력 장치용 모터의 코깅 토크, 토크 리플 및 전자기력 고조파 저감을 위한 회전자 형상에 따른 비교 연구
원윤재(Yun-Jae Won),안수민(Soo-Min Ahn),김재현(Jae-Hyun Kim),임명섭(Myung-Seop Lim),김두영(Doo-Young Kim) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6
In this paper, the development of steering system and SBW (Steer by wire) system are introduced. Also, designs for reducing cogging torque, torque ripple and electromagnetic force harmonics that affect vibration in the motor for reaction force device used in the system of SBW are studied. In addition, according to rotor shape, three types of motors are designed to reduce vibration considering the same design specifications. First, it is designed as a SPMSM (Surface-mounted permanent magnet synchronous motor) type that is advantageous in terms of control. Second, it is designed as an IPMSM (Interior permanent magnet synchronous motor) type advantageous for power density. Third, in order to reduce the use of permanent magnets, it is designed as a CP-PMSM (Consequent pole permanent magnet synchronous motor) type. Using the FEA (Finite Element Analysis), the design parameters that affect cogging torque, torque ripple and electromagnetic force harmonics are identified. Then, the optimal design is carried out by selecting the objective function and constraint conditions. The optimal design result based on the surrogate model depends on how well the surrogate model simulates the performance. Therefore, in the optimal design, an surrogate model is created using the kriging method, and the predicted performance is verified to match the true value. Finally, the performance of these three types of motors is compared to suggest a motor type suitable for SBW.
Byeong-Hwa Lee,Hyung-Il Park,Jae-Woo Jung 대한전기학회 2018 Journal of Electrical Engineering & Technology Vol.13 No.6
This paper deals with optimum design of surface mounted permanent magnet synchronous motor (SPMSM) for automotive component. For a compact system structure, it was designed as a motor with a 14-pole 12-slot concentrated winding and hollow shaft. The motor is a thin type structure which stator outer diameter is relatively large compared to its axial length and is designed to have a high magnetic saturation for increasing the torque density. Since the high magnetic saturation in the stator core increases the axial leakage flux, a 3-dimensional (3-D) finite element analysis (FEA) is indispensable for torque analysis. However, optimum designs using 3-D FEA is inefficient in terms of time and cost. Therefore, equivalent 2-D FEA which is able to consider axial leakage flux is applied to the optimization to overcome the disadvantages of 3-D FEA. The structure for cost reduction is proposed and optimum design using equivalent 2-D FEA has been performed.
이중 PLL 구조를 이용한 표면부착형 영구자석 동기전동기 센서리스 구동장치의 성능 개선
이광운 전력전자학회 2017 전력전자학회 논문지 Vol.22 No.6
This paper presents a simple approach for improving the performance of back-electromotive force (back-EMF)-estimation-based sensorless drives for surface-mounted permanent magnet synchronous motors (SPMSM). Similar to conventional approaches, a hypothetical d-q synchronous reference frame model of SPMSM is employed in the proposed approach to estimate the back-EMFs. This approach also employs a dual phase locked loop structure to compensate for the effect of the dead time and parameter uncertainty of the inverter on the estimated back-EMFs. The proposed algorithm is validated by conducting experiments.
표면 부착형 영구자석 동기 전동기를 이용한 20kW급 실험용 전기자동차 파워트레인 개발
박성환(Sung-Hwan Park),이정주(Jeong-Ju Lee),손종열(Jong-Yull Son),이영일(Young-Il Lee) 전력전자학회 2017 전력전자학회 논문지 Vol.22 No.3
This paper describes the development of a powertrain for a 20 kW experimental electric vehicle using a surface-mounted permanent magnet synchronous motor (SPMSM) and its application to a test vehicle. Two 10 kW SPMSMs are used in the powertrain, and two-level inverters are developed by using IGBTs to derive these motors. To control the SPMSM, a control board based on a TMS320F28335 DSP module, which has fast arithmetic function and floating point operator, is used. We develop a 100 V/40 A battery pack, which includes 32✕4 LiFePO4 battery cells using commercial BMS. A commercial on-board charger with 220 V (AC) input and 100 V (DC) and 18 A output is used to charge the battery pack. The performance of the developed vehicle, such as acceleration availability, maximum speed, and maximum power, is estimated based on vehicle dynamics and verified through experiments.
표면 부착형 영구자석 전동기의 권선단락고장 센서리스 진단
안길준(Giljun Ahn),이준민(Junmin Lee),박찬희(Chan Hee Park),윤명백(Myeongbaek Youn),윤병동(Byeng D. Youn) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12
Surface-mounted permanent magnet synchronous motors (SPMSMs) are widely used in high precision control systems such as industrial robots. If inter-turn faults of SPMSM were not early detected, it may cause enormous financial loss. This study deals with the analysis of low severity level faults of SPMSM with various load condition. The mathematical model of SPMSM with low severity inter-turn faults is established and simulated. From the simulation results, the possibility of shorted circuit current as a fault indicator indicating the severity of fault was confirmed. Not only confirm the possibility, this study suggests the method to estimate the fault indicator without additional sensor such as accelerometer or voltage probe. The simulation of proposed method was conducted and the simulation results verify the effectiveness of proposed method as well.
So-Yeon Im(임소연),Jae-Hyun Kim(김재현),Moo-Hyun Sung(성무현),Myung-Seop Lim(임명섭) 한국자동차공학회 2022 한국자동차공학회 학술대회 및 전시회 Vol.2022 No.11
Since the motor is driven by an inverter, it is essential to design the motor in consideration of electrical specifications. The DC link voltage limits the fundamental armature voltage of the motor. Ultra-high-speed motors have large voltage drop due to inductance. In order to satisfy the voltage-limit condition, a permanent magnet (PM) overhang structure can be considered to reduce the inductance voltage drop. Since back-electromotive force (EMF) increases when the PM overhang structure is applied, the stack length may be reduced at the same level as back-EMF. Accordingly, the inductance voltage drop is reduced due to the reduction of the stack length. In particular, since surfaced-mounted synchronous motor (SPMSM) does not generate reluctance torque, the same output torque can be maintained even when the inductance is reduced through a PM overhang structure. The PM overhang factor is used to reduce the computation time by reflecting the effect of the PM overhang structure in the 2-dimensional finite element analysis. Accordingly, the distributed winding SPMSM is designed to reduce the inductance by reflecting the PM overhang factor.
Xing Zezhi,Wang Xiuhe,Zhao Wenliang 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.5
This paper presents a design method of the basic model of high-speed surface-mounted permanent magnet synchronous motor (SPMSM) comprehensively considering the mechanical and electromagnetic properties based on the subdomain method. In the rotor design stage, the mechanical stresses of the permanent magnet (PM) and retaining sleeve are investigated and calculated by the subdomain method, the interference pre-stress, centrifugal force, thermal stress, and material anisotropy are accurately considered. For the rotors with different retaining sleeves, the rotor parameters such as the thicknesses of the PM and retaining sleeve and the interference between them considering both electromagnetic performance and stress extreme conditions are determined. In the stator design stage, the performances of motors with different stator structures are analyzed and compared based on the subdomain method considering stator saturation, and the optimal stator structure parameters are determined. Finally, the design scheme of the 2-pole 36-slot high-speed SPMSM that meets the requirements of mechanical and electromagnetic properties is determined, and the comprehensive performance of the motor is verified by the finite element method (FEM).
Lee, Byeong-Hwa,Park, Hyung-Il,Jung, Jae-Woo The Korean Institute of Electrical Engineers 2018 Journal of Electrical Engineering & Technology Vol.13 No.6
This paper deals with optimum design of surface mounted permanent magnet synchronous motor (SPMSM) for automotive component. For a compact system structure, it was designed as a motor with a 14-pole 12-slot concentrated winding and hollow shaft. The motor is a thin type structure which stator outer diameter is relatively large compared to its axial length and is designed to have a high magnetic saturation for increasing the torque density. Since the high magnetic saturation in the stator core increases the axial leakage flux, a 3-dimensional (3-D) finite element analysis (FEA) is indispensable for torque analysis. However, optimum designs using 3-D FEA is inefficient in terms of time and cost. Therefore, equivalent 2-D FEA which is able to consider axial leakage flux is applied to the optimization to overcome the disadvantages of 3-D FEA. The structure for cost reduction is proposed and optimum design using equivalent 2-D FEA has been performed.
Self-Commissioning for Surface-Mounted Permanent Magnet Synchronous Motors
Urasaki, Naomitsu,Senjyu, Tomonobu,Uezato, Katsumi The Korean Institute of Power Electronics 2003 JOURNAL OF POWER ELECTRONICS Vol.3 No.1
This paper presents the self-commissioning for surface-mounted permanent magnet synchronous motor. The proposed strategy executes three tests with a vector controlled inverter drive system. To do this, synchronous d-q axes currents are appropriately controlled for each test. From the three tests, armature resistance, armature inductance, equivalent iron loss resistance, and emf coefficient are identified automatically. The validity of the proposed strategy is confirmed by experimental results.
Soo-Hwan Park,Jin-Cheol Park,Jun-Woo Chin,Hyeon-Jin Park,Soon-O Kwon,Sung-Il Kim,Myung-Seop Lim 한국자기학회 2019 Journal of Magnetics Vol.24 No.4
This paper proposes a design method of the surface-mounted permanent magnet synchronous motor using electromagnetic and thermal analysis. Since the electromagnetic and thermal fields are related, the permanent magnet synchronous motor should be considered not only in terms of the power density but also the thermal characteristics. The analytic method was used to investigate the power density of the concentrated winding model using the same number of poles. In the thermal design process, the analytic prediction was carried out by using the electromagnetic and thermal analysis called the lumped parameter thermal network (LPTN). The optimized geometry and losses which were calculated by the electromagnetic finite-element analysis were considered in the LPTN. As a result, an improved model was designed with superior power density and thermal characteristics to the prototype. Finally, the experiments were conducted to verify the validity of the design process and results.