Title |
Analysis on Static Characteristics of Slotless Type Permanent Magnet Electrical Machines Using the Electromagnetic Transfer Relations |
Authors |
장석명(Jang, Seok-Myeong) ; 최장영(Choi, Jang-Young) ; 이성호(Lee, Sung-Ho) ; 조한욱(Cho, Han-Wook) |
Keywords |
Analytical Techniques ; Electromagnetic Field ; PM Machines ; Transfer Relations |
Abstract |
It is well known that the accurate calculation of the field distribution is essential for the design of electrical machines. The analytical techniques for electromagnetic field can quickly and exactly determine airgap magnetic field distribution in electrical machines. Many analytical techniques have been investigated to predict the magnetic field distribution in PM machines equipped with permanent magnets. Using the analytical technique by transfer relations, D. L. Trumper and K. R. Davey already presented the design and analysis of linear permanent-magnet machines and induction machines, respectively. Using the transfer relations (Melcher's general methodology) to describe electromagnetic phenomena, this paper deals with the analysis on the magnetic field distribution due to PM and winding current, the induced voltage and the static torque characteristics in surface-mounted slotless type permanent magnet machine. The validity of the analysis results is confirmed by finite element (FE) analysis. |