In recent years, permanent magnet synchronous motors (PMSMs) are being widely used in home appliances such as air conditioners and fan motors, vehicles, and railway components. In addition, the application of model predictive control (MPC) to control motors is studied to improve the response of conventional PI controllers. In this study, we derive a responsiveness design method based on predictive horizon in a speed control system that estimates position sensorless control using PMSMs. Furthermore, we combine MPC and position sensorless control by setting the responsiveness of MPC so that there is no interference between current control and position sensorless control.
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