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Taguchi method를 이용한 영구자석 모터의 자속 장벽 설계
양병렬(Byoung-yull Yang),박현각(Hyun-kag Park),황규윤(Kyu Yun Hwang),권병일(Byung-il Kwon) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.4
This paper proposes a novel flux barrier in q-axis of rotor in IPM type BLDC motor, The proposed flux barrier can reduce cogging torqeu and diminisg torque ripple by sinusoidal waveform distribution of flux generated in the permanent magnet. To determine the optimal shape of the novel flux barrier, we also propose a modified Taguchi method which considering multiple quality characteristics, such as cogging torque, average torque, and efficiency. The proposed design and method were analyzed by using the 20 finite element method (FEM). Results of the proposed model were compared with initial model.
오주환(Ju-Hwan Oh),권병일(Byoung-il Kwon) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.4
In this paper, drive method and torque characteristics of a switched reluctance motor(SRM) with auxiliary winding for the reduction of torque ripple are researched. This auxiliary winding is coupled with phase winding on the switch turn-off. In this proposed SSRM, auxiliary winding used to obtain active continuous torque. The abrupt change of a in mechanical vibration. The torque ripple is reduced remarkably through the proposed drive method commutation. The operational principle and a torque characteristic comparison to that of the conventional SRM show that this SRM with auxiliary winding scheme has some advantages including high average torque as well as torque ripple.
회전자 자속장벽 설계에 의한 영구자석 매입형 BLDC 전동기 코깅 토오크 저감 연구
尹勤榮(Keun-Young Yun),梁炳烈(Byoung-Yull Yang),權炳一(Byung-Il Kwon) 대한전기학회 2006 전기학회논문지 B Vol.55 No.10
For high efficiency and easy speed control of brushless DC (BLDC) motor, the demand of BLDC motor is increasing. Especially demand of interior permanent magnet (IPM) BLDC with high efficiency and high power in electric motion vehicle is increasing. However, IPM BLDC basically has a high cogging torque that results from the interaction of permanent magnet magnetomotive force (MMF) harmonics and air-gap permeance harmonics due to slotting. This cogging torque generates vibration and acoustic noises during the driving of motor. Thus reduction of the cogging torque has to be considered in IPM BLDC motor design by analytical methods. This paper proposes the cogging torque reduction method for IPM BLDC motor. For reduction of cogging torque of IPM BLDC motor, this paper describes new technique of the flux barriers design. The proposed method uses sinusoidal form of flux density to reduce the cogging torque. To make the sinusoidal air-gap flux density, flux barriers are applied in the rotor and flux barriers that installed in the rotor produce the sinusoidal form of flux density. Changing the number of flux barrier, the cogging torque is analyzed by finite element method. Also characteristics of designed model by the proposed method are analyzed by finite element method.
다구찌 기법을 이용한 IPM type BLDC 전동기의 토크리플 저감을 위한 자속장벽설계
박현각(Hyun Kag Park),양병렬(Byoung Yull Yang),권병일(Byung Il Kwon) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.4
The structure of interior permanent magnet type brushless DC motor (IPM type BLDC motor) has high saliency ratios that produce additional reluctance torque. But this structure has a significant cogging torque that may cause acoustic noise and vibration. In this paper describes an optimization of flux barrier in order to reduce cogging torque and torque ripple in IPM type BLDC motor using the Taguchi methods. The optimal design consider- ed noises such as manufacturing tolerances of permanent magnet size. So, optimal design ensures that torque performance is insensitive to noise.
로봇 구동용 In wheel 영구자석 동기전동기의 코깅 토크 저감을 위한 영구자석 최적 설계
신동주(Dong-joo Shin),양병렬(Byoung-yull Yang),황규윤(Kyu-yun Hwang),권병일(Byung-il Kwon) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
This paper presents a multi-objective optimal design process for an in-wheel permanent magnet synchronous motor (PMSM) for high performance. In order to improve the characteristics of the PMSM such as the cogging torque, torque ripple and the back-EMF, the modified Taguchi method and the response surface method (RSM) are utilized. In addition, results of the proposed model are compared with the initial design and it is verified by 2D FEM.