1. Introduction
This application note describes the implementation of the sensorless Motor Control Reference Solution Package (MCRSP) software for a 3-phase Permanent Magnet Synchronous Motor (PMSM), including a motor parameters identification algorithm, running on 32-bit Kinetis V and E series MCUs. The sensorless control software itself and the PMSM control theory in general is described in Sensorless PMSM Field-Oriented Control (document DRM148). The NXP Freedom board (FRDM-MC-LVPMSM), Tower System modular development platform module (TWR-MC-LV3PH), and High-Voltage Platform power stages (HVP-MC3PH) are used as hardware platforms for the PMSM control reference solution. The hardware-dependent part of the sensorless control software is addressed as well, including detailed peripheral setup and the Motor Control Peripheral Drivers (MCDRV). The motor parameters identification theory and the algorithms are also described in this document. The last part of this document introduces and explains the user interface represented by the Motor Control Application Tuning (MCAT) page based on FreeMASTER run-time debugging tool. These tools represent a simple and user-friendly way of motor parameter identification, algorithm tuning, software control, debugging, and diagnostics.