Title |
Design of Direct-Drive Slotless Type Permanent Magnet Synchronous Motor |
Authors |
강규홍(Gang, Gyu-Hong) ; 홍정표(Hong, Jeong-Pyo) ; 김규탁(Kim, Gyu-Tak) ; 박정우(Park, Jeong-U) |
Keywords |
Ring type slotless synchronous motors ; Permanent Magnet ; Finite Element Analysis |
Abstract |
This paper deals with magnetic field and characteristic analysis for ring type slotless synchronous motors by using analytical method. Since magnetic air-gap in the slotless motors is much larger than mechanical air-gap, it is necessary to analyze the magnetic flux distribution at the whole magnetic airgap region. therefore, this paper analyzes the duplicated magnetic field derived by both Permanent Magnet(PM) and armature current and estimates the back electromotive force and torque characteristic by subdividing the conductor region. The analysis results are verified by comparing with Finite Element Analysis(FEA) results. |