Numerical and Experimental Design Validation for Adaptive Efficiency Distribution Compatible to Frequent Operating Range of IPMSM

Numerical design coupled with finite-element method (FEM) has been performed for realizing the adaptive efficiency distribution of interior permanent magnet synchronous motor (IPMSM) compatible to the frequent operating range of electric vehicle. In particular, the target operating region is specified with the representative driving modes of heavy-duty vehicle in Braunschweig and Seoul. Considering various control strategies, the dominant electromagnetic losses throughout the whole operating region of IPMSM are numerically identified in association with FEM and employed as design target to minimize. Furthermore, the purposely designed prototype is experimentally validated via the resultant efficiency map built-up by static and dynamic dynamometer tests.