병렬형 하이브리드 구동용 매입형 영구자석동기전동기 설계에 대한 연구

Abstract

This study investigates the design factors of interior permanent magnet synchronous motor(IPMSM) which is applied to hybrid electric vehicle as a driving power. Recently, there are many studies of IPMSM for application to hybrid electric vehicle, because IPMSM has characteristics of high torque, high power density and high efficiency which come from reluctance torque due to difference of inductance as well as magnet torque. This study analyzes the inductance and design characteristics of IPMSM by using finite element method and focuses on design and analysis of IPMSM which can operates with high efficiency at low speed range. For this embodiment, magnet shape is changed from conventional block type to arc type without any change of outline dimension fo motor and this change of magnet shape amkes it possible to increase back EMF and sharply decrease of harmonics are secured and through this contribution of reduced fuel consumption of hybrid electric vehicle is expected.