Abstract:
This paper proposes the performance of
Vienna rectifier and switched inductance Z-source
inverter for boosting the output voltage and
enhances the power quality of wind energy
conversion system (WECS). A three-phase rectifier
and a voltage source inverter are used for
AC/DC/AC conversion in the conventional method
and a separate DC/DC boost converter used to boost
the voltage. The proposed method, Vienna rectifier
and switched inductance z source inverter are
employed for AC/DC/AC conversion and boost the
output voltage of wind energy conversion to the
required level without using an additional DC-DC
converter. The PI control method is used for Vienna
rectifier (VR) to increase the quality of rectifier
output and simple boost technique is used in
switched inductance z source inverter (SLZSI) to
boost the voltage and to improve the quality of the
system. The proposed method uses less number of
switches to increase the output voltage. The
proposed system provides good performance which
increases the quality and reduces the Total
Harmonic Distortion (THD) and cost. The proposed
system is simulated using simulation software and
performance is validated by simulation and
experimental results.
