A Hybrid MIP-CBO Approach for Loss Minimization of the PMSM-fed Electric Vehicle Drive System

Abstract

This paper presents an efficient operation method suitable for Permanent Magnet Synchronous Motors (PMSMs). The proposed algorithm provides control of copper and iron losses across the range of operations. The machine operating concept was initially reviewed to establish the control method, and a model was created for control purposes. The efficient operation boundary of the machine was then established based on PMSM voltage and current constraints. A rapid search for the optimal operating point was made possible by a hybrid COOT optimization with Mixed Integer Programming. This expands the high-efficiency area of the motor drive in an electric vehicle, leading to longer Km between charges.