POWER QUALITY ENHANCEMENT BY COORDINATED CONTROL SCHEME IN HYBRID RES

Abstract

These days, sustainable power sources, for example, sun
oriented Photovoltaic (PV) and wind power frameworks have a huge
impact during the time spent producing power. These frameworks are
colossally dependent on the present and determined weather patterns.
Variations in output as well as production are affected by the system's
inconsistent behavior. Accordingly, the necessity for energy
transmission and appropriation frameworks to remunerate
expeditiously is becoming significant. A novel smart grid application
for power system operation is proposed in this paper. The distribution
system's power quality and power flow are improved, unwanted
harmonics are reduced, and reactive power in the power sources is
compensated for with a STATCOM device. A semi-Z-Source Inverter
(qZSI) based STATCOM is built regarding a Three-Stage Four-Wire
(3P4W) dissemination framework. The mix of a q Z-source and a PV
framework make up the proposed compensator circuit that is utilized
here for exchanging. To control the recommended compensator, a
Versatile frequency Fixed (AFF) - Second Request Summed up
Integrator (SOGI) has been executed. The Proportional Integral (PI)
controller's parameters, such as Kp and Ki, are optimized with the help
of the Fuzzy Logic Controller (FLC). The simulation results show that
the system effectively reduces the source current's Total Harmonic
Distortion (THD), which goes from 25.5% to 1.3%. In addition, the
framework has exhibited its capacity to supply dynamic capacity to the
load.