Using Power PC-MPC for Real-Time VHFIM Sensorless Drive Control

The paper deals with real-time control of PM synchronous motor for sensorless position using Power PC-MPC processor. Real parametric-and real-time model could be ideal tools for both control and simulation of the PMSM (permanent magnet synchronous motor) position drive. Unfortunately that idealized model doesn’t exist so far. Such a model has to face following serious problems: it must be excited and synchronized by real input including non-linearities of power supply converter (switch voltage drops, dead-times,..); it should also provide on-line identification of the motor parameters including load changes. Combine real-time control system proposed in the paper fulfills most of those requirements: it is supplied by real data from the motor stator voltages, so it is exactly synchronized with real system, and it works with off-line identified motor parameters.