| Title |
Design of Magnetic Circuit of Line-start Permanent Magnet Synchronous Motor to Develop the Characteristics at the Steady State |
| Authors |
오영진(Oh, Young-Jin) ; 남혁(Nam, Hyuk) ; 정승규(Jung, Seung-Kyu) ; 홍정표(Hong, Jung-Pyo) ; 정태욱(Jung, Tae-Uk) ; 백승면(Baek, Seung-Myun) |
| Keywords |
LSPM ; Saliency ratio ; Inductance difference ; d-/q- axis coordinates ; FEM |
| Abstract |
This study investigates magnetic circuit design of the Single-phase Line-start Permanent Magnet Synchronous Motor (LSPM) to develop the characteristics in steady state. In this paper, the saliency ratio, that is the ratio of q-axial inductance to d-axial inductance, and the inductance difference between q-axial inductance and d-axial inductance are increased. Design factor is selected permanent magnet position and rotor diameter. The analysis method of the synchronous motor on d-/q- axis coordinates is used for the positive component and the equivalent circuit of the induction motor is applied for the negative component analysis. Back-emf and d-q- axial inductance is analyzed by using 2 dimensional Finite Element Method (FEM). Characteristic analysis results with variation of design factor are reflected magnetic circuit design of LSPM. The characteristics of design model are compared with the characteristic of initial model. |