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42V 자동차 EHPS용 BLDC 모터 개발에 관한 연구
류세현(Se-hyun Rhyu),김영균(Young-kyoun Kim),허진(Jin Hur),성하경(Ha-gyeong Sung) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.4
The increment of electric power demand causes interest on new higher power system such as 42V Power Net, and furthermore necessity for development of energy storage device is highlighted recently. Owing to high efficiency and easy speed control of brushless DC(BLDC) motor, the demand of BLDC motor that has high power and low noises are increasing. Especially demand of interior permanent magnet(IPM) type BLDC with high efficiency and high power in electric motion vehicle is increasing. This paper presents the design of the BLDC motor for EHPS(Electro-Hydraulic Power Steering) in 42V system and verified the characteristics by simulation and test results.
영구자석 형상비를 고려한 영구자석 매입형 BLDC 전동기 설계 및 특성해석
尹勤榮(Keun-Young Yun),柳世鉉(Se-Hyun Rhyu),梁炳烈(Byoung-Yull Yang),權炳一(Byung-Il Kwon) 대한전기학회 2006 전기학회논문지 B Vol.55 No.1
Nowaday, owing to high efficiency and easy speed control of brushless DC(BLDC) motor, the demand of BLDC motor that has high power and low noises are increasing. Especially demand of interior permanent magnet(IPM) BLDC with high efficiency and high power in electric motion vehicle is increasing. IPM BLDC motor has permanent magnets in the rotor. Because it has two different flux paths, magnetic reluctance differences are generated in d-axis and q-axis. As the result of the inductance differences that are generated by the saliency(magnetic reluctance differences) in the rotor, the motor has structural advantage that has the additional reluctance torque except a magnet torque and because magnet is situated inside the rotor, the mechanical structure is strong. Therefore IPM BLDC motor makes possible to have high speed and high power. This paper presents a design and characteristics analysis of IPM BLDC motor for electric vehicle. To design IPM BLDC motor, surface mounted permanent magnet(SPM) BLDC motor is used as the initial design model. According to the shape-ratio() of permanent magnet, the characteristic of IPM BLDC motor is analyzed by Finite element method (FEM). Characteristics analysis results of the designed motor are compared with the experimental results.
스큐착자된 영구자석과 오버행 구조를 갖는 BLDC 전동기의 최적화 설계에 관한 연구
황규윤(Kyu-yun Hwang),류세현(Se-hyun Rhyu),권병일(Byung-il Kwon) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.10
This paper introduces the novel coefficient function for the skewed PM and overhang structured BLDC motor. The novel coefficient function is obtained by the moving least square (MLS) method and 3D FEM and is utilized to reduce the executing time in optimal design. By using calculated coefficient function and 2D FEM, the additional MLS regression model is obtained to calculate a more reasonable optimal skew angle and overhang length of PM with minimized PM size considering with the skew and overhang effect. Finally, the optimized result utilizing combined MSL regressive equations is compared with a 3D FEM result to verify the proposed design.