Referring to motor phase voltages based on
the mathematical calculation using ideal motor voltage equation,
a comparison of motor terminal voltages with their reference is
given and the harmonic back-EMF components are extracted
and applied to the motor three phase windings as compensation.
Simulation and experimental results of the current and voltage,
produced by a commercial PM synchronous motor drive system
using space vector control are presented. These results are
compared with those results without compensation to verify the
effectiveness of the proposed voltage compensation strategy