Abstract—The switching frequency of a
conventional direct torque control (DTC)
strategy which is based on hysteresis controllers
results in a variable switching frequency which
depends on the mechanical speed, flux, stator
voltage, and the hysteresis band of the
comparator. In this paper, a DTC scheme using
Space vector modulator (SVM) and fuzzy logic
controller (FLC) is suggested. A comparison
with the classical DTC is presented. The
suggested control strategy guarantees very good
dynamic and steady state characteristics with
low sampling rate and a constant switching
frequency. The simulation results are presented
to validate the scheme.