Loss Minimization-Based Sensorless Control of High-Speed Induction Motor Considering Core Loss

This paper presents loss-minimizing sensorless control (LMC) strategies utilized to optimize the energy of high-speed induction motor (HSIM) drives. A machine’s ability to operate effectively depends on the estimation of its electrical losses. Although copper losses account for the majority of electrical losses in electrical machines, core loss also contributes a major part, particularly in high-speed induction motors. A review of design solutions of power electronic converters to feed HSIMs and the effect of their parameters on iron losses were analyzed. In the gathered literature, HSIM loss analysis was generally performed using software analytical techniques such as finite element methods. There were few real-time loss analysis and loss minimization sensorless control approaches for HSIM in the literature. Finally, the study of sensorless control of 500Hz frequency with synchronous speed of 15000 rpm HSIM with optimal flux and reference reactive torque based optimization for loss minimization through nonlinear control system design was presented as a solution to the evaluated gaps found in the literature and the simulation findings were experimentally verified.