Evaluation of Simplified Model for Rapid Identification and Control Development of IPM Traction Machines

This article presents an evaluation of simplified model considering only q-axis current effects on parameters for rapid identification and control development interior permanent magnet (IPM) traction machines. It is shown that the simple easy to be implemented. demonstrated in low-speed region with maximum torque per ampere (MTPA) control, due flat segment around MTPA point relevant constant over magnitude curve, operation could still achieved using model. field-weakening (FW) where parameter mismatch resulting a higher-than-expected voltage mitigated via feedback (FB) loop, torque-speed performance obtained reduction boundary together up 1.5% machine efficiency difference. Thus, considered at earlier stage as solution quickly test validate IPM design/manufacture when validation complex both dq-axis currents highly time-consuming. The validated measurement high-speed high-power (15 000 r/min, 120 kW) machine.