Abstract- This paper presents a comparative study of the most
significant control methods (scalar control (V/F), indirect field
oriented control (IFOC) and direct torque control (DTC)) for an
induction motor fed by a Z-source inverter (ZSI) for automotive
applications. The three control techniques are implemented
using PWM voltage modulation. The comparison is based on
various criteria including: the motor dynamic performance, the
speed and torque ripples, the ac current harmonic content, the
control algorithm implementation complexity, the ZSI
performance and the overall system efficiency. The study is done
by MATLAB simulation of a 15 kW induction motor fed by a
high performance Z-source inverter. The simulation results
indicates that, the IFOC seems to be the best control techniques
suitable for controlling an induction motor fed by a ZSI for
automotive applications. In addition, this paper proves that, all
control methods used for the voltage source inverter (VSI) can
be applied for the ZSI and gaining its advantages.