서지주요정보
영구자석 매입형 BLDC 모터의 소음/진동 평가를 위한 전자기적 가진력의 특성화 = Characterization of electromagnetic excitation forces for interior permanent magnet type BLDC motors for noise/vibration assessment
서명 / 저자 영구자석 매입형 BLDC 모터의 소음/진동 평가를 위한 전자기적 가진력의 특성화 = Characterization of electromagnetic excitation forces for interior permanent magnet type BLDC motors for noise/vibration assessment / 고홍석.
저자명 고홍석 ; Ko, Hong-Seok
발행사항 [대전 : 한국과학기술원, 2003].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8014300

소장위치/청구기호

학술문화관(문화관) 보존서고

DME 03023

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The purpose of this paper is to characterize electromagnetic excitation forces in Interior Permanent Magnet (IPM) Brushless Direct Current (BLDC) motors and to investigate into their effects on noise and vibration. Analysis of electromagnetic excitation sources in the IPM motors is far more difficult than in the SPM motors because magnetic saturations in the rotor core are more likely to occur in the former. In this paper, such sources were classified into three types and efficient methods were presented to characterize each source, and then contribution of the sources to the noise and vibration was investigated for an IPM motor. One is so called cogging torque, for which an efficient technique of computation with saturation effects taken into account is proposed as a function of rotor position. In this technique, magnetic saturations in the rotor can be taken into account by employing the FEM just once for the slotless stator and effects of the stator slot are reflected by the concept of relative permeance. Another is fluctuation of attractive forces in the radial direction between the stator and rotor. The distribution of radial attractive forces due to the magnetic flux by the permanent magnets in the rotor and electric currents in the stator is computed by an efficient technique, where significance of the magnetic flux due to the electric current that is often neglected in the SPM motors is pointed out. The third is called ripples of mutual and reluctance torque, for which an equation is developed to characterize the combination of space harmonics of inductances and flux linkages related to permanent magnets and time harmonics of current. It is shown that the space and time harmonics are responsible for the torque ripples at three times the source frequency and their integer multiples. Then, influences of structural dynamic characteristics such as natural frequencies and mode shapes as well as electromagnetic excitation forces on the noise and vibration are experimentally investigated for an IPM motor used in washing machines.

서지기타정보

서지기타정보
청구기호 {DME 03023
형태사항 viii, 115 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : 상대 퍼미언스 계산 방법
저자명의 영문표기 : Hong-Seok Ko
지도교수의 한글표기 : 김광준
지도교수의 영문표기 : Kwang-Joon Kim
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 106-111
주제 electromagnetic excitation force
BLDC motor
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