Modelling and Control of Automotive Grade Interior Permanent Magnet Synchronous Motor


Seung-Ki Sul and Young-Cheol Kwon


Since Interior Permanent Magnet Synchronous Motor (IPMSM) has been used as a traction motor for hybrid and electric vehicle, the control and modelling of IPMSM have been continuously evolved. Most of modelling and control of IPMSM have been developed based on the ideal model of IPMSM, where the parameters of IPMSM are constant regardless of the operating conditions. In this tutorial, the modelling of automotive grade IPMSM considering magnetic saturation, cross coupling and spatial harmonics will be discussed. As an example, the characteristics of traction motors used in Prius and Bolt will be addressed.