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공극의 시간변화를 고려한 3 상 BLDC 모터의 동특성 해석Dynamic Analysis of a 3-Phase BLDC Motor Considering Variation of an Air-Gap
- Other Titles
- Dynamic Analysis of a 3-Phase BLDC Motor Considering Variation of an Air-Gap
- Issue Date
- Oct-2009
- Publisher
- 대한기계학회
- Keywords
- 브러쉬리스 직류 전동기; 인덕턴스; 쇄교자속; 공극; 기전연성방정식; 라그랑지 방정식; Brushless DC Motor; Inductance; Flux Linkage; Air-Gap; Electromechanical Equation; Lagrange’s Equation
- Citation
- 대한기계학회논문집 A, v.33, no.10, pp 1038 - 1044
- Pages
- 7
- Indexed
- SCOPUS
KCI
- Journal Title
- 대한기계학회논문집 A
- Volume
- 33
- Number
- 10
- Start Page
- 1038
- End Page
- 1044
- ISSN
- 1226-4873
- Abstract
- In this study, vibrations of an electric motor are analyzed when the motor has the interaction between mechanical and electromagnetic behaviors. For this vibration analysis a 3-phase 8-pole brushless DC motor is selected. Vibrations of the motor are influenced by coupled electromechanical characteristics. The variation of air-gap induced by vibration has an influence on the inductance of the motor coil. To analyze dynamic characteristics of the rotor, we studied inductance by the variation of an air-gap. After obtaining the kinetic, potential and magnetic energies for the motor, the equations of motion are derived by using Lagrange’s equation. By applying the Newmark time integration method to the equations, the dynamic responses for the displacements and currents are computed.
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Related Researcher
- Chung, Jintai
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)